torpedo system

[deepseadiver]

I am interested in some kind of torpedo lunching system. I think when something is made i then will proceed in a future submarine build. I want some one to take the time and get one made because a lot of people want it. If they would make a system i will buy many submarine kits .
Jim

[toppack]

How Large an Explosive charge yield do you require in these Torpedos? :cool:

[toppack]

How about this one?
See Link:
http://www.youtube.com/watch?v=Nk98gAA5klY&feature=related

[toppack]

I'd think the only thing limiting the smallest scale size of these torpedos would be the diameter of the motor used. There are very small batteries so that would only limit the run time.
You use a servo activated trigger that releases a spring to push out torpedo. When it's out a momentary off switch, that is pushed in and turned off when it's pushed into launch tube, turns on drive motor when released. The nose and aft sections need to be made of wood or something that will float well. Inside there is only a motor/propshaft, battery and switch/wires.
Of course the torpedo Keeps-going until it's retrieved, goes on to beach or the battery runs down. :D

[deepseadiver]

Hi toppack,
yes this is exactly what im looking for . Know my problem is how to get incontact with the manufacturer, So i can buy the system . Its very impressive i mostly will be using it in a large swimming pool, and i could paint them a bright color so if i launch in a pond i will see them floating on the surface, but pool is fine with me, Do you know who sell them?
Thanks for the info much apreciate. I know David M was working on a system but he got tied up on other projects, but this is important to me and many others. Please let me know were to purchase .
Mike, C if you see this email please respond also since you are incontact with David M
Thanks
Jim A

[toppack]

Sorry, I've not seen any in production for sale.
Only individuals designing and making them for their own use.

[deepseadiver]

Ok on torpedo sytem. I though it would be a try to see what's out there. I will keep waiting maybe one day.

Jim

[toppack]

I've started designing my own Torpedos and launch tubes in 1/48th scale.
Other than finding the correct size parts, I think designing the spring-loaded trigger, that servo activates, is going to be the most difficult part of the tube assembly.
It needs to locked in well enough to eliminate accidental launches but loose enough that the servo can release it.
That will require 2 springs, since I would not want to take deck-cover off each time to reset trigger manually.
So there will need be a fine balance of spring forces and servo force, on the release trigger.
The spring forces are going to be critical for both launch-force and trigger-force, which will probably require a great deal of experimentation.
I need to find a spring manufacturer that will give out free spring samples. :D LOL :D

[He Who Shall Not Be Named]

I've started designing my own Torpedos and launch tubes in 1/48th scale.
Other than finding the correct size parts, I think designing the spring-loaded trigger, that servo activates, is going to be the most difficult part of the tube assembly.
It needs to locked in well enough to eliminate accidental launches but loose enough that the servo can release it.
That will require 2 springs, since I would not want to take deck-cover off each time to reset trigger manually.
So there will need be a fine balance of spring forces and servo force, on the release trigger.
The spring forces are going to be critical for both launch-force and trigger-force, which will probably require a great deal of experimentation.
I need to find a spring manufacturer that will give out free spring samples. :D LOL :D

You can achieve exceptionally high restraining force, yet need only marginal releasing force if you use 'locking balls' as the trip mechanism (think, Aeroquip type quick-connect fittings, they use that lock-and-latch type mechanism).

David,

[toppack]

I think I know what you mean. But wouldn't that require a 3rd spring to seat the ball into a groove?
Altho a great trigger design, it would complicate the assembly more, I think?

Springs:
1- large one to push out torpedo
1 - to seat ****ing ball
1 - to reset trigger automatically, when servo is reversed

The reset spring would need more force than the ****ing spring, to allow it to reset, and the reset spring would need to be weak enough, and the servo strong enough, to out pull both spring's forces combined. Which gets kinda complicated.

But it may be worth it, to get a reliable design, if the proper force spings could be found.
I think on my first design I'll try to limit it to 2 springs, tho. (1 launch & 1 reset)
Thanks for the Idea,

[toppack]

David,
I may have come up with another design that combines the cocking and reset into 1 spring. By putting the cocking groove into the torpedo itself, not in the trigger-arm. So the ball sits in a depression in torpedo case.
The torpedo's power switch could be down in that depression also, with a membrane seal, so it would have double function, with no switch protruding thru side of torpedo.

Maybe that's what you were talking about?

[toppack]

I've about desided to go with a battery for power instead of a charged capacitor, since it would be very difficult to load the torpedo without accidently discharging the cap and the Run time is Very Short with a cap. (2 seconds or less, even with current limiting resistor)
It would not get to shore with that run time.

I may not be able to find at least 3.volts worth of Rechargable battery-pack that small tho, may have to go with non-rechargables.

[toppack]

I also determined that I'll also need to build a torpedo Holding fixture, to have on shore, to keep batteries from discharging thur motor, until I can reinstall them in sub.
Unless I put in a 2nd power Switch or added some kind of slide inside torpedo to deactivate the Momentary switch, which again could get too complicated.

[He Who Shall Not Be Named]

David,
I may have come up with another design that combines the cocking and reset into 1 spring. By putting the cocking groove into the torpedo itself, not in the trigger-arm. So the ball sits in a depression in torpedo case.
The torpedo's power switch could be down in that depression also, with a membrane seal, so it would have double function, with no switch protruding thru side of torpedo.

Maybe that's what you were talking about?

think: magnetic reed-switch.

David,

[toppack]

think: magnetic reed-switch.

David,
Hey, Great Idea!
I could mount one of the magnets, I now have ordered, in wall of launch tube, and no need for switch hole in torpedo.
A simple contact-arm switch should be fairly easy to make, if I can't find sealed reed-switches that will fit, and mount inside torpedo.
I can use a tray, with magnets built in, to deactivate and hold the torpedos when on shore.
I may have to Order More Magnets! :)
Thanks,

[He Who Shall Not Be Named]

Hey, Great Idea!
I could mount one of the magnets, I now have ordered, in wall of launch tube, and no need for switch hole in torpedo.
A simple contact-arm switch should be fairly easy to make, if I can't find sealed reed-switches that will fit, and mount inside torpedo.
I can use a tray, with magnets built in, to deactivate and hold the torpedos when on shore.
I may have to Order More Magnets! :)
Thanks,

Good move. Keep it simple.

David,

[deepseadiver]

I will be watching this thread. you have my complete attention.

Jim:)

[toppack]

I will be watching this thread. you have my complete attention.

Jim:)

Hey, Jim, start designing and building!
Maybe we can come with a Better design if we're All working on it??
I'm still searching for a rechargable battery, the correct size, but No Joy so far. :(

[He Who Shall Not Be Named]

Hey, Jim, start designing and building!
Maybe we can come with a Better design if we're All working on it??
I'm still searching for a rechargable battery, the correct size, but No Joy so far. :(

Look at the tiny Lithium-polymer batteries used in those cheap, RTF helicopter toys.

David,

[toppack]

All I've seen so far in the Micro Li-pos is a flat card shaped pack. Too Large :(

[deepseadiver]

ok i will think of ideas also. the magnet part to swtich off and on im sure is they way to go . But i will think of some other ideas also.
Jim

[toppack]

Yes, I know I have some small reed-switches (the type sealed in glass tube), if I can find them.
My stack of Goody-boxes is Very Large, after about 50 years of scrounging and collecting, and those switches are Very Small! :D LOL :D

[toppack]

Another problem is that since the very small motors (without gearing) have High RPM but not much Torque, so the motor has trouble overcoming the drag of the shaft seal along with the force needed to turn the prop. Need a shaft seal that is water-tight but allows shaft to turn freely at high RPM.
I think some kinda tubing would make best seal, maybe teflon tubing, if I can find shaft rods and tubing the correct size to make a watertight fit.

I got some more small motors, (direct from HongKong), that are only .24" diameter, but problem with them is that motor's shaft is only .030" dia. and about .1" long, which is not much for a tubing type shaft-coupling to grab onto.
They operate well at 1.2 volts and really scream at 2.4 volts. :)

I found that motors I removed from servos don't operate well at 1.2 volts.
They like at least 3. volts, which may be okay if I have to use and stack button type batteries, since I'll have enough length space to stack a bunch of them (probably 4). (Button type like used in hearing-aids)

[toppack]

Micro Motor:
Purchased from eBay.
Click Pic:

[deepseadiver]

this looks like an ideal motor for the torpedos, im looking for some tubing that i may be able to find with threaded ends i know some one that works with plastics that may be able to help out. this way the torpedo, can be un screwed into two pieces. But i like the one thats on youtube were he has made his from scratch displaying it in the bathtub, running it for the first time. I have written him for were he has gotten his supplies but no responce so far.

[toppack]

It would be best to make both ends from somthing that floats (one that prop-shaft goes thru & one nose).
Yes, a good way to attach those end pieces correctly, to center tube, is a Critical and maybe difficult part of the assembly.
I've not thought about that part of it much yet.

Want to find some tube that is thin walled, not magnetic, but easy to attach.
Since it needs to be thin-walled, I doubt it could have Threads?
Maybe just a press fit with a O-ring seal, and a locking pin if necessary (if there's a small internal spring to keep a battery stack tightly together, pushing against nose piece)?
Remember we're talking about something about the size of a fountain-pen! :)

[deepseadiver]

yes thats true a fountain pen, i will see what thin wall plastic tubbing i can find and keep you updated with a picture. Meanwhile i think you are right with using a o ring simple also. battery will have to be those hearing aid batterys. Can't think of anything else to generate enough power.

[He Who Shall Not Be Named]

yes thats true a fountain pen, i will see what thin wall plastic tubbing i can find and keep you updated with a picture. Meanwhile i think you are right with using a o ring simple also. battery will have to be those hearing aid batterys. Can't think of anything else to generate enough power.

Thin walled carbon-carbon tube is ideal. Check out sources of supply that cater to the free-flight and ultra-light/indoor r/c airplane market.

David,

[toppack]

Thin walled carbon-carbon tube is ideal. David,

And the latest Technology, Also. That'll impress the neighbors! :D LOL :D

I'm Sure I don't have any of that in my Goody-boxes, tho. ;)

[deepseadiver]

Good idea David, i know a place that makes carbon fiber tubing. I will see what they have in stock. I think they make special orders so if they do i will find out how much for the tubing. I need to have a idea what's the maximum length of tube it should be and tube diameter, that would be perfect for such a project. If this works i will mail the tubing to you that are interested so we all can build one of these torpedos for testing.
Oh' by the way what about having compressed gas coming out of a small hole at the end of the torpedo, for propulsion, that sounds real simple any idea's about this.

Jim

[toppack]

I'll need to get the 1/48th scale hull and plans from Mike before determining exact size of tubing needed for launch-tubes and torpedos. Fit of torpedo inside launch tube is critical and tubes need to fit scale openings in hull.
Maybe 10 days or so? I think Mike is still working on the drawings. At least I hope he is? :)

The gas recharging and activation valving system, at high pressure, would be too difficult to make at that small a scale, I think, but I suppose it could be done.

[toppack]

I found some 6.mm dia. Gear-motors, but they are kinda expensive and they are in U.K. so there would a large shipping charge also.
I have not figured out the shaft coupling on them yet, tho.
So ordering them may be a Gamble.
See Pics:

[deepseadiver]

Oops your right trying to put a pressure system inside of a gato submarine would be difficult no room.
Jim

[deepseadiver]

those motors from the uk sure do look nice.
Jim

[deepseadiver]

that sounds good Mike, is working on a scale drawing good stuff!

Jim

[toppack]

that sounds good Mike, is working on a scale drawing good stuff!

Jim

The drawing is for the T-class hull, not the torpedo launcher. I did not explain that very well, so thought I should.

[deepseadiver]

I'll need to get the 1/48th scale hull and plans from Mike before determining exact size of tubing needed for launch-tubes and torpedos. Fit of torpedo inside launch tube is critical and tubes need to fit scale openings in hull.
Maybe 10 days or so? I think Mike is still working on the drawings. At least I hope he is? :)

The gas recharging and activation valving system, at high pressure, would be too difficult to make at that small a scale, I think, but I suppose it could be done.

this thread explains you were talking about the exact tubing needed for launch tubes and torpedos, wanting to ask Mike about . But you have said you were not talking about the torpedo system . It was about the The drawing for the T-class hull, not the torpedo launcher im confused.

[toppack]

Sorry, I need the 1/48th scale drawing of the Hull and the hull kit, from Mike, before I can determine the size tubing needed for the launch-tubes, then we can determine size tubing needed for the torpedos, since they need to fit the launch-tubes.
Need to see both drawing and hull to make sure everything will fit and be as close to scale as possible.

The statement, in above post, about needing the drawing, was to also remind Mike that we needed the scale drawing. :) Since he's Such a Busy man, I was trying to help with a subtle reminder. :D

[toppack]

I almost ordered some of the 6.mm Gearmotors, from UK, but when rechecking the Specs on them I found that the gear-ratio is an Unbelievable 25 to 1. (I first read it as 2.5 to 1)
So I think the prop speed would be too low. :(
So I'll be searching more, for a good motor to use. :confused:

[deepseadiver]

Oh know i see whats going on. It makes since know why the drawings are needed very good point indeed. With out the exact measurements were lost, great thinking on asking Mike, for the plans, Whats nice aout all of this is once a torpedo is designed and is a working model. It will be able to fit different class submarines of that same size scale. Thats If im going about thinking right about it.

Jim

[He Who Shall Not Be Named]

You guy's keep *** this dead-horse. Go gas, not electric. Don't you read my articles?

David,

[toppack]

Not Dead, Just 'a little off 'er Oats' right now. :D

No I didn't see the Articles! Where are they? :confused:
I'm always ready for some Horse-tradin', if I get a Good Deal. :)

I have no idea how to do the rechargable high-pressure valving at that small scale?

[deepseadiver]

yes i do agree oh mighty one we don't need a dead horse, maybe a little sick but not dead. please let us know how can gas be able to work with a small torpedo so small as a pen size and still have enough gas presurized into it to even get out of the launching tube will it work? just curious:rolleyes:

jim

[He Who Shall Not Be Named]

yes i do agree oh mighty one we don't need a dead horse, maybe a little sick but not dead. please let us know how can gas be able to work with a small torpedo so small as a pen size and still have enough gas presurized into it to even get out of the launching tube will it work? just curious:rolleyes:

jim


Mr. Caswell has been bugging me to take my gas torpedoes (a development of the fine work Mike Dorey started so many years ago) to the 'commercial' stage since we first met. I'll have to do that once I get out from under all this development and production work the slave-master .... er ... Mr. Caswell has heaped upon me.

Use a #90 hole in the nozzle and the torpedo. Even small weapons, of 1/96 scale, with that sized nozzle and the body containing a charge of Propellant evidenced a nominal range of 40 feet! The 1/72 weapons exceeded 60 feet.

The trick is to employ an off-torpedo charging fitting which is integrated into the charging-launching mechanism. There are no valves or other devices aboard the weapon. My torpedoes are hollow cast polyurethane with a nominal wall thickness of 1/16" -- enough volume to achieve the above ranges, and strong enough to resist explosion (not one catastrophic failure to date).

I should dig out some photos of that work and tease you all with it ... Mr. Caswell permitting, of course.

David,

[toppack]

I should dig out some photos of that work and tease you all with it
David,

Please Do! :)

[deepseadiver]

David please do please do. Yes it will be a tease but hey' thats what makes the hobby so much fun . Anything would be such a blessing to see. Come on Mike you can do it let the Master, DM show off some of his ideas that would be great just to give some ideas.

Jim:D

[deepseadiver]

How much psi do you pressurize the tube to . I'm thinking of making my own version and testing it in my back yard pond. If i get success i will post what i have done and go from there. But i will need a little help.

Jim

[He Who Shall Not Be Named]

How much psi do you pressurize the tube to . I'm thinking of making my own version and testing it in my back yard pond. If i get success i will post what i have done and go from there. But i will need a little help.

Jim

Nominal working pressure of Propellant (Butane/Methane) at room temperature is 70 PSI -- so that's the working pressure of both the launcher and weapons.

David,

[toppack]

Be careful! 70psi doesn't sound like much, but it's enough to do some Projectal Damage.

[He Who Shall Not Be Named]

Be careful! 70psi doesn't sound like much, but it's enough to do some Projectal Damage.

Mr. Ambassador, I'll take your recommendation under advisement.

(I've only been doing this **** for 20 some years now!).

David,

[toppack]

My warning was mainly for Jim and anyone else, but I don't even want You to Loose an Eye-ball. :D

[deepseadiver]

70 psi sounds like I'm making a rocket, more then a torpedo, but i guess for it to go any distance it needs some go go juice in it right ? I don't want to be putting any kind of flammable gas into it. I would think just good old air brush propellant like what we use for the WTC container for the subs air ballast tank, should work any suggestions please.

Jim

[deepseadiver]

Hey here is my other hobby i wanted to share with you both. I like fooling around with any thing technical and precision . here is picture of my ugly mug :rolleyes:

Jim Ahttp://forum.sub-driver.com/attachment.php?attachmentid=372&stc=1&d=1233304379

[toppack]

Very Interesting Jim, but those Submarines you have pictured on your website will 'Never Float"! :D LOL :D
They will Submerge tho. :D

[He Who Shall Not Be Named]

Hey here is my other hobby i wanted to share with you both. I like fooling around with any thing technical and precision . here is picture of my ugly mug :rolleyes:

Jim A
http://www.airstarintl.com/News.html

Most impressive. You pegged my 'respect' meter.

David,

[Nuke Power]

Those helis are insane. I cant imagine the asking price of one of those turbine choppers after looking at the price of one of my pathetic electrics!


Here is a look at the missile system Ive been working on for my Ohio boat. Not torpedos but the concept is the same.
http://www.youtube.com/watch?v=guLXjlHFyCg

[Kazzer]

I found some 6.mm dia. Gear-motors, but they are kinda expensive and they are in U.K. so there would a large shipping charge also.
I have not figured out the shaft coupling on them yet, tho.
So ordering them may be a Gamble.
See Pics:


I'll bet a shilling those motors aren't British. Look more like Chinese.
:)

[Kazzer]

Get and post the darned torpedo pictures David. You never needed my permission to blow your trumpet before, so what's this wimpy attitude all of a sudden?:rolleyes:

[toppack]

I'll bet a shilling those motors aren't British. Look more like Chinese.
:)
I think you owe me a Shilling, sure looks like they make them.
See Link:
http://www.precisionmicrodrives.com/product_info.php?products_id=108

[toppack]

Get and post the darned torpedo pictures David. You never needed my permission to blow your trumpet before, so what's this wimpy attitude all of a sudden?:rolleyes:

He don't want us to Steal his Secrets. ;)
He prefers to Sell them to the Highest Bidder. :D

[He Who Shall Not Be Named]

He don't want us to Steal his Secrets. ;)
He prefers to Sell them to the Highest Bidder. :D

Damn right!

Just sent some pictures of my torpedo work to Mike and he'll post 'em when he can.

By the way, I like the new banners he's running here.

David,

[Kazzer]

There is a paperclip icon just above where you type your messages.

Just click on it and find the photo file you want on your hard drive ---

[Kazzer]

More torpedo files

Now upload your own darned photos Merriman! I'm not yer mother!

[He Who Shall Not Be Named]

More torpedo files

Now upload your own darned photos Merriman! I'm not yer mother!

LOL.

Damn computers, anyway! ....

David,

[toppack]

Wow, appears to be a great design!
Definitely Not KISS enough for just anyone to build tho. (there's a Lot of solder joints)
David, you don't have to worry about many people stealing your design.
The spring-loaded one-way-rotation servo-linkage-arm is very interesting.
The ring-tube distribution-manifold appears complicated at first but it's probably one of the simplest ways to do it.
I like it!

[He Who Shall Not Be Named]

Wow, appears to be a great design!
Definitely Not KISS enough for just anyone to build tho. (there's a Lot of solder joints)
David, you don't have to worry about many people stealing your design.
The spring-loaded one-way-rotation servo-linkage-arm is very interesting.
The ring-tube distribution-manifold appears complicated at first but it's probably one of the simplest ways to do it.
I like it!

You figured out what the linkage is for. Not bad. Yes, its a torpedo launcher firing valve selector switch.

Mike has me working on a simplified, production version for you dummies out there. Stay tuned ... film at Eleven!

David,

[toppack]

Us Dummies are eagerly waiting! :D

[toppack]

I would think making the 4 small cylinder-valves would be the most difficult parts, since the internal piston and seal would need to be a very close-tolerance fit. Did you use O-ring for seal?

[deepseadiver]

Yes i bet they will be the fastest helicopter subs, to sink the quickest to the deep bottom never coming up:D

[deepseadiver]

I have a lot of love for the sport and hobby for a very long time.

[He Who Shall Not Be Named]

I would think making the 4 small cylinder-valves would be the most difficult parts, since the internal piston and seal would need to be a very close-tolerance fit. Did you use O-ring for seal?

Just modified Schraeder (spelling?) valves. They leak past the stem, but are only actuated momentarily, so gas loss is minimal.

David,

[toppack]

Okay, I think I have the 'full picture' on the launcher.

Do you have O-rings on the torpedos, to seal them in launch-tubes, or is that necessary?

[He Who Shall Not Be Named]

Okay, I think I have the 'full picture' on the launcher.

Do you have O-rings on the torpedos, to seal them in launch-tubes, or is that necessary?


Yes, a 1/16" wall, 1/16" i.d. rubber O-ring that sits in the bore of the charging/launching adapter. The O-ring girdles the 1/16 o.d. aluminum tube that has been bored out with a #92 bit to form the torpedoes filling/exhaust nozzle. Retraction of the charging/launching adapter sends the weapon on its way in 'swim out' mode.

David,

[toppack]

'swim out' mode, as in 'You need to Swim Out to retrieve them', Got it. :D
Thanks for the Info, I'm really starting to get the 'Full Picture' Now. :)

I think I can teach my dog Sheela to swim out and retrieve torpedos for me.
A few teeth marks should not hurt them much. :D

[He Who Shall Not Be Named]

'swim out' mode, as in 'You need to Swim Out to retrieve them', Got it. :D
Thanks for the Info, I'm really starting to get the 'Full Picture' Now. :)

I think I can teach my dog Sheela to swim out and retrieve torpedos for me.
A few teeth marks should not hurt them much. :D


No, no ... smart-ass! OK: you're talking to a retired Torpedo man's Mate. Let me explain:

There are two methods of getting the weapon out the tube, either by ejection (pneumatic or hydraulic or mechanical ram ... damn French!) or to let the weapon power its own way out -- this requires either a back-flush through the slide-valve or use of a weapon of a slightly smaller diameter than the bore of the tube to permit equalization between the front and back of the weapon as it travels the tube.

In the case of these gas weapons, what I'm pleased to call 'swim out' as the means of launching, is a bit of a misnomer: the weapon generates the gas that pneumatically squirts the weapon out the tube -- the torpedo self-propels itself out the tube like a swim out, but the high differential pressure between the front and back of the weapon within the tube is created by the gas expelled by the weapon. So, in my system (and the ground-breaking Mike Dorey system upon which my work is based) we see elements of the swim-out and ejection modes used to get the weapon into the water.

David,

[toppack]

Okay, I knew it had to be something like that, but was not sure about the terminoligy. Thanks for the Swimming Lesson! :D

[Slats]

have read this post with great interest - I am please to see that I am not the only serial pest that wants this system.

Guys - I have had a go at three torpedo type systems over the years - all screaming failures with shots cooking off early, hanging in tubes, and all ridiculously overscale. Every one successful shot fired another 5 wood goof and all high consumable gas suckers too by the ridiculous overscale of the items.

One piece of advice.
WAIT

David will get this going in his own time. I have been on him for this going on three years now. Mike will tell you too the amount of times he has instructed me to shut the F up about it.

In the mean time get a sub working well - allow some space forward - rig up your sub driver with a spare channel.

There is nothing more that says amateur hour like a sub that fires a torpedo only to then porpoise along, flood, or sink like a rock.

Best
John

[He Who Shall Not Be Named]

have read this post with great interest - I am please to see that I am not the only serial pest that wants this system.

Guys - I have had a go at three torpedo type systems over the years - all screaming failures with shots cooking off early, hanging in tubes, and all ridiculously overscale. Every one successful shot fired another 5 wood goof and all high consumable gas suckers too by the ridiculous overscale of the items.

One piece of advice.
WAIT

David will get this going in his own time. I have been on him for this going on three years now. Mike will tell you too the amount of times he has instructed me to shut the F up about it.

In the mean time get a sub working well - allow some space forward - rig up your sub driver with a spare channel.

There is nothing more that says amateur hour like a sub that fires a torpedo only to then porpoise along, flood, or sink like a rock.

Best
John

And that, boys and girls, is that. Well put!

I'll readdress the torpedo problem later in the year and will get a production unit up and working before 2010. So, Like John said: get your boat working!

David,

[toppack]

So, get your boat working!
David,

I would, if you guys would send me some T-class parts and drawings! :D LOL :D

[Slats]

Mike,
I do like the latest banners of the torpedo shooting across the screen and the banner stating this is coming soon.

John

[deepseadiver]

that has a very strong blast there some good presure behind it i can see there.

[Slats]

Its going to be great and well worth the wait.
J

[Kazzer]

I would, if you guys would send me some T-class parts and drawings! :D LOL :D

I saw your box (About 7' tall) go out a couple of days ago. The drawings are hopefully being picked up today!

[toppack]

I saw your box (About 7' tall) go out a couple of days ago. The drawings are hopefully being picked up today!

I'll be sitting at my front door with box-cutter in hand. :D LOL :D

[deepseadiver]

Well i tried trying to metal around with a torpedo system, and i have found bad sources for the parts. The one that David Merriman, has posted those pictures of his prototype is very impressive. I would not know were to start molding little metal pieces like that and to get it to function correctly. It would take me 6 months to get it right maybe more.

I see David, our overlord submarine builder and Creator is making a four torpedo system for the skip jack submarine . I am looking forward in seeing it, once it's made and on Caswell, site . Note to Mike once the new mold are done yes i am interested in buying your skip jack with the torpedo system that's for sure.
Jim:)

[Slats]

I see David, our overlord submarine builder and Creator is making a four torpedo system for the skip jack submarine . I am looking forward in seeing it, once it's made and on Caswell, site .
Jim:)

Hey Jim,

how do you know its for the Skipjack?....4 shot system could be applied to a variety of sub platforms - the Newsletter / e-mail from Mike mentions more details soon to go on to the New Products page.

I am hoping personally it will be also available in 1/72, and I thought earlier discussions re this on another forum (like a year back or so), was that it would be produced in 1/96 and 1/72....Mike could you please indicate when you put the details up - what scales it will come in.

best

John

[Kazzer]

There are several considerations to the torpedo system
1. The electronics to sequentially fire the torpedoes on command
2. The mechanical system to charge (with propellant) and despatch the weapon.
3. The tube/launcher
4. The weapon itself

Item # 1 & #2 are identical regardless of the size of the weapon.
#3 & # 4 will depend on the scale of the boat.

We are concentrating on items 1 & 2 at this point. Construction of different size torpedoes doesn't need much brain power.

[Slats]

thanks Mike.
Sounds great.

Re 1 - does this mean that you won't need a push rod linked to a servo to fire the torpedoes?

John

[deepseadiver]

Hi John,
good point i would like it to be working for the gato submarine along with other scale sizes very good point . I see Mike reponded so know it's understood by me also what the plans are . looking forward in seeing the first made.

Well John, Oops my mistake i read this on the latest skipjack submarine letter sent out on it's mold being worked on. It was not directly informing about it having its own special torpedoes, made just for the skipjack i miss understood..
this is what it said.


Torpedoes We have made major inroads in the design of the system, which looks as if it will now come with a 4 shot system, for more torpedoes you’d put 2 x 4 shot systems in. I hope to have photos of the firing mechanism in the next few days. Please keep an eye on the New Product Announcements notice board on our forum. Finished product is several months away, make sure you have space! :-)

this is great news.

Jim:D

[junglelord]

I used to work in Electronics for 10 years and had five years as a Sonar Technologist. I worked for a company that did Commercial and Military Sonar. It was part of my job description to do tank and field tests of the transducer heads for torpedos for the Canadian Military contract we had at the company I worked for in Cornwall Ontario.

I worked on several different torpedo transducers and work power them up and take sonar graph measurements and submit my reports.

I also did tank and field testing on very large arrays that are towed behind destroyers to find submarines.

They were huge...and when powered up made quite the ping.

That would be very dangerous to marine life in my mind and its bad medicine for the dolphins and whales.
Censored

[Kazzer]

thanks Mike.
Sounds great.

Re 1 - does this mean that you won't need a push rod linked to a servo to fire the torpedoes?

John

Yes, the actuator is a small computer board, like a pitch controller etc.
It plugs into the receiver directly and opens a ---------Blah hey! I'm not saying any more - Official Secrets Act!

[Nuke Power]

secrets mike or LIES!!!!!

[Slats]

Yes, the actuator is a small computer board, like a pitch controller etc.
It plugs into the receiver directly and opens a ---------Blah hey! I'm not saying any more - Official Secrets Act!

Forgeting the most secret mechanism, I take it the firing unit in the water is waterproof?

And

How do you connect the units electrical wires through the WTC bulkhead to the unit firing unit in the water?

[He Who Shall Not Be Named]

I used to work in Electronics for 10 years and had five years as a Sonar Technologist. I worked for a company that did Commercial and Military Sonar. It was part of my job description to do tank and field tests of the transducer heads for torpedos for the Canadian Military contract we had at the company I worked for in Cornwall Ontario.

I worked on several different torpedo transducers and work power them up and take sonar graph measurements and submit my reports.

I also did tank and field testing on very large arrays that are towed behind destroyers to find submarines.

They were huge...and when powered up made quite the ping.

That would be very dangerous to marine life in my mind and its bad medicine for the dolphins and whales.
Censored

Defense before animals.

David,

[deepseadiver]

I do agree our marine life, will only be around only if we humans, do somthing about pertecting it. But our freedom of this country will need to come first.

[Slats]

whilst the debate over the pros and cons of whale hugging is always fun, I am not following what is doing on a thread about RC Torpedoes....:confused:

J

[He Who Shall Not Be Named]

whilst the debate over the pros and cons of whale hugging is always fun, I am not following what is doing on a thread about RC Torpedoes....:confused:

J

Sorry. Knee-jerk reflex against save-the-gay-transsexual-minority group-whales group-think. American and Allied sonar use is GOOD! American sub and ship platforms should bang away all they want!

Had to put up with Greenpeace types as I worked the torpedo testing ranges at Nanaimo and Keyport. Peacnic's and the like enjoy the freedom to be arrogant, know-nothing idiots because this nation (and our Allies) make it safe for them to do so; and a big part of that protection is maintaining (testing and demonstration) our military muscle. In my book whales comes in a very poor second when it comes to national defense.

No apologies here, gang.

David,

[Slats]

Well I will be building USS Whale (638) later this year (if Brian gets moving) that Whale will love torpedoes -4 of them Merriman type.

[deepseadiver]

I myself do believe we need to protect our seas, and our home land with out some sacrifice, we would not be here, We would have been taken over a long time ago that's for sure. Military muscle, must always be demonstrated to certain types of people that think they can take away the freedom of this country. To those who have served there country they know what i am talking about. I served as a United states coast officer . I boarded ships, seized drugs, illegal weapons, made many arrests, and was a rescue swimmer , i did a good part in saving human lives . I have had also to deal with Greenpeace, some times they are doing things that may be getting in the way and causing possible harm to them self's and to others. I also have worked with some Navy submariners, I am aware of the sonar, platform testing that is needed, plus what goes on with torpedo testing . I do understand there are people that do want to protect out seas, in what lives, with in them . After so many years it has been going on through my experience, with what it may do to our water life, is minimal to the security of our country .

[deepseadiver]

I do agree lets get off the save the whale talk please and get back to our hobby, submarines , torpedos ect.

that would be apreciated

Jim US coast gaurd.

[He Who Shall Not Be Named]

I myself do believe we need to protect our seas, and our home land with out some sacrifice, we would not be here, We would have been taken over a long time ago that's for sure. Military muscle, must always be demonstrated to certain types of people that think they can take away the freedom of this country. To those who have served there country they know what i am talking about. I served as a United states coast officer . I boarded ships, seized drugs, illegal weapons, made many arrests, and was a rescue swimmer , i did a good part in saving human lives . I have had also to deal with Greenpeace, some times they are doing things that may be getting in the way and causing possible harm to them self's and to others. I also have worked with some Navy submariners, I am aware of the sonar, platform testing that is needed, plus what goes on with torpedo testing . I do understand there are people that do want to protect out seas, in what lives, with in them . After so many years it has been going on through my experience, with what it may do to our water life, is minimal to the security of our country .

You've been at the pointy-end of the spear.

Most of those Greenpeacer's are pot smoking Roady's, academic wall-flowers, and trust-fund college kids looks for some relevance and adventure to counterweight their otherwise shallow and unproductive lives.

Practical necessity (maintenance of a strong military) weighed against idealistic unrealism (peace-love-dove idiots in rubber boats).

David,

[Kazzer]

David

Have you had your raw meat yet today?

[Nuke Power]

you guys just made me fall asleep

[Tutor]

you guys just made me fall asleep

all well and good but what about the torp's, has any one used hydrogen peroxide and aluminum oxide as a propellant?

Tutor

[toppack]

all well and good but what about the torp's, has any one used hydrogen peroxide and aluminum oxide as a propellant?

Tutor

No gasious expulsions for me. I still want to 'invent a new mouse-trap' and go Electric power. I think I can make a system that is KISS and Reliable. :cool:

[He Who Shall Not Be Named]

No gasious expulsions for me. I still want to 'invent a new mouse-trap' and go Electric power. I think I can make a system that is KISS and Reliable. :cool:

Electric is certainly easier to achieve (as a torpedo). But the problem is 'visibility'. I want a wake from my weapons.

Reactive chemistry is fine, but its the problem of keeping the constituents apart until ready for use as well as how to efficiently meeter them out in a sustained, predictable fashion within a gas generator. Remember the KURSK?

I had to deal with Navol (high-test hydrogen peroxide) powered weapons, the MK-16 torpedo. A pain in the ass, and a constant source of expended man-hours to maintain and monitor. Loved the MK-14: dumb, simple, reliable, and other than keeping the air-flask banged up, very low maintenance.

David,

[junglelord]

I tested many MK-14 for military use...without me there was no tuned and matched MK-14!
:p

[toppack]

Electric is certainly easier to achieve (as a torpedo). But the problem is 'visibility'. I want a wake from my weapons.David,

Yes, I can see that gas will make a more spectacular and interesting launch, that's for sure. :eek:

[toppack]

And there's certainly No way I could fill all 11 tubes, in the T-class, with launchable electrics, but I suppose it would be possible with gas launchers?

[He Who Shall Not Be Named]

I tested many MK-14 for military use...without me there was no tuned and matched MK-14!
:p


You from Road Island?

David,

[junglelord]

No I live in Cornwall Ontario.
I worked for a company called C-Tech.
They had a contract with the Canadian Military.
I was the person doing that work.
:p

[deepseadiver]

:)I like this system but those torpedoes are a little to big for my gato submarine .

Jim

http://www.youtube.com/watch?v=kSHrOz-Il2I&feature=related

[Tutor]

the problem is getting an electric to work in 1/72 scale,and getting some run time

Mark

[deepseadiver]

Hi everyone.

yes i think seeing a gas stream following out behind the torpedo, looks so awesome to see it trailing along the surface. Plus video, tapping it would be seen very well. Go gas, but i do like the electric motor, method just can not see it as well.

jim

[Slats]

:)I like this system but those torpedoes are a little to big for my gato submarine .

Jim

http://www.youtube.com/watch?v=kSHrOz-Il2I&feature=related

How big is the gato? The ones on offer from David will be no doubt 1/72 and or 1/96 in size. In fact if I recall his earlier work correctly on this development where the 1/96 scale shot had better run time than the 1/72.

[Slats]

the problem is getting an electric to work in 1/72 scale,and getting some run time

Mark

gas is simpler and more scale.

J

[deepseadiver]

I found this to be interesting some one making a real exploding mine :eek:? and fake depth charges
i think i will stick with torpedos .

http://www.youtube.com/watch?v=JP8o89ZyiPw&feature=channel_page
http://www.youtube.com/watch?v=ECnDHOy29Gc&feature=channel

[deepseadiver]

Hi John,
the gato is 1/72 scale size thats the torpedo size would be needed to fit it.

[Slats]

Hi John,
the gato is 1/72 scale size thats the torpedo size would be needed to fit it.

Too easy mate....God (that's Mr Merriman to you), has perfected previously the 1/96 scale and 1/72 torpedo - wait for his unit to be available for purchase and you won't be disappointed.

Best
John

[redboat219]

David,
I'm just wondering, what are those holes for on the rear of the torpedo tubes in your torpedo launcher banner. Wouldn't it cause your gas to leak into the hull and reduce power to launch the fish:confused:

[He Who Shall Not Be Named]

David,
I'm just wondering, what are those holes for on the rear of the torpedo tubes in your torpedo launcher banner. Wouldn't it cause your gas to leak into the hull and reduce power to launch the fish:confused:

'Throtteling' holes. There to reduce the velocity of the weapon as it hits the water.

David,

[Tutor]

Too easy mate....God (that's Mr Merriman to you), has perfected previously the 1/96 scale and 1/72 torpedo - wait for his unit to be available for purchase and you won't be disappointed.

Best
John

so how soon and how much, and dementions?

Way cool need a bunch, ok 20 units

Tutor

[He Who Shall Not Be Named]

so how soon and how much, and dementions?

Way cool need a bunch, ok 20 units

Tutor

Wait!

I've got a full plate right now.

David,

[junglelord]

They want to split you into a million pieces...
Take a break, put up your feet and have one for the team Captain.
I'll drink to THAT!

[Slats]

This thread is becoming a bit like carting toddlers around on a road trip..."are we there yet"

either that or your getting the green light for home plate with a prom date.


Settle down boys and wait. Good things take time.
If you don't have the patience to wait you won't get very far in this hobby.

J

[toppack]

* I Want it All, and I Want it NOW!* :D LOL :D

[He Who Shall Not Be Named]

* I Want it All, and I Want it NOW!* :D LOL :D

I know the feeling.

... Wait!

David,

[deepseadiver]

This thread is becoming a bit like carting toddlers around on a road trip..."are we there yet"

either that or your getting the green light for home plate with a prom date.


Settle down boys and wait. Good things take time.
If you don't have the patience to wait you won't get very far in this hobby.

J

This cracks me up carting toddlers around on a road trip . It seems like we are a bunch of kids in a candy store and if they dont have your favorite candy in stock, all hell is going to brake lose .Censored

Yes i bet David, has a lot of things going on right know. I wonder if someone is cracking the whip that poor man Crack That WHip I guess you can only get so much done in a day. Yes good things come with those who wait indeed.


Keep up the great work David, But i still want it know!:D

[Slats]

Yes we all want to know.., I for one want to know:
-how the mechanism / switch etc will go in the subdriver:
-whether you need an extra servo and push rod linkage;
-what the linkage will entail;
-whether or not the torpedoes loaded displace a similar amount of water (weight) as an empty tube;
- exactly how much space you need;
-whether or not the 4 shot tubes are configurable in 2 plus 2 combos (like in a Sturgeon each side) or whether or not they 4 across;
-what channel should the system go on (toggle / rotary etc)

But for heaven sake - BE PATIENT.

I'm of the arrogant point of view that some wanting the system can't handle such a system. Sorry but this hobby attracts its fair share of some which want instant gratification with little understanding of the craftsmanship or design underlying it. IMO you don't appreciate what you don't understand. Lay off the caveman.

[toppack]

Lay off the caveman.

But that's NO Fun!:D
Crack That WHipCrack That WHipCrack That WHip

[Tutor]

As a manufature of resin kits and designer, I completely understand, all that goes into a project, I was just looking for some info, as to set up, cost so I can budget for them, If the pressure is too much, sorry.

As for product design, may I suggest design and testing first, then post the product when ready, I do that so as not to get every one gung ho, then wait. IMHO

Mark Giles

AKA Tutor

[toppack]

But David really enjoys Teasing us, Before they are Ready.:D
(of course we have to give him a 'hard time' about it)
and we don't need No 'Stinkin Secrets'! :D
Hey, we're the 'Band of Brothers'. :D

[He Who Shall Not Be Named]

But David really enjoys Teasing us, Before they are Ready.:D
(of course we have to give him a 'hard time' about it)
and we don't need No 'Stinkin Secrets'! :D
Hey, we're the 'Band of Brothers'. :D


yeah ... what he said.

David,

[deepseadiver]

lay of the caveman . yes oh yes i do agree good things come with time.
with my gato build and my helicopters i build i know exactly what you are saying some people can't realize the time thinking, designing, and testing, goes into something before it can be a reality, but i do know that's for sure.

[deepseadiver]

I bet David is teasing us all . I bet he has one ready to go he is just waiting for that special right moment to shock us with what he has. yes yes am i right :cool:

[Slats]

As for product design, may I suggest design and testing first, then post the product when ready, I do that so as not to get every one gung ho, then wait. IMHO

Mark Giles

AKA Tutor

Yeah like no kidding Mark - and that's exactly what is happening.
David and Mike will not release this until their happy with it - hence the wait and why the wait will be worth it. :):D

In the meantime - all of you build something Crack That WHipCrack That WHip
J

[toppack]

I got some more motors to try, they are 7.mm O.D. by 15.mm long, They are the ones I'll try in my Torpedos first.
Shaft starts rotating at an unbelievable .05 volts, (of course that's with no load) and are turning a high RPM at 1.2 volts. They are rated at 3.volts, but I'll probably try them with 1.2 V battery first, and see how well they do in water.

[Slats]

I got some more motors to try, they are 7.mm O.D. by 15.mm long, They are the ones I'll try in my Torpedos first.
Shaft starts rotating at an unbelievable .05 volts, (of course that's with no load) and are turning a high RPM at 1.2 volts. They are rated at 3.volts, but I'll probably try them with 1.2 V battery first, and see how well they do in water.

Rick - there are other better ways to spend your time - like building a weps platform - i.e a boat. BlahBlah

If the almighty wanted us to run electric torpedoes he would have them in the pipeline.
Instead he has blessed us with a gas system. I'll drink to THAT!

J

[Slats]

get it:- Gas in the pipeline ! That Stinks

oh dear that's not funny is it! That Stinks

[He Who Shall Not Be Named]

get it:- Gas in the pipeline ! That Stinks

oh dear that's not funny is it! That Stinks

... but, the effort was appreciated.

David,

[toppack]

If the almighty wanted us to run electric torpedoes he would have them in the pipeline.
Instead he has blessed us with a gas system. I'll drink to THAT!

J
Gas is okay, but since you ask, I'm trying for more realistic torpedo action, not short-range Rockets. :eek:
Also I want them to Go until reaching the shore, so I won't have to go swimming in these alligator infested ponds. :eek: :D

[He Who Shall Not Be Named]

Gas is okay, but since you ask, I'm trying for more realistic torpedo action, not short-range Rockets. :eek:
Also I want them to Go until reaching the shore, so I won't have to go swimming in these alligator infested ponds. :eek: :D

Oh, I don't know, Rick. Based on your previous thread, I'm inclined to think it a good idea you go out and retrieve your torpedoes in alligator infested waters. But, that's just me.

David,

[toppack]

Oh, I don't know, Rick. Based on your previous thread, I'm inclined to think it a good idea you go out and retrieve your torpedoes in alligator infested waters. But, that's just me.

David,
David,
I had a feeling you would feel that way. I did hesitate about giving a truthful answer :rolleyes:, but I knew you would want me to be completely honest. ;)

[Slats]

Gas is okay, but since you ask, I'm trying for more realistic torpedo action, not short-range Rockets. :eek:
Also I want them to Go until reaching the shore, so I won't have to go swimming in these alligator infested ponds. :eek: :D

Rick - you will be simply amazed at how realistic David's warshots are.
I am not sure what exactly you have planned but the gas shots do have considerable range and realistic wake. Wait - you will be surprised.

J

[deepseadiver]

So David,
what is the best color for these torpedo's to be or what color is Caswell going to have them, or i imagine we can paint them ourselves? plus the torpedo doors, should they be metal or use the plastic that comes with the submarine it self, or is this un decided. Any comments also from the peanut gallery.Blah

[Slats]

So David,
what is the best color for these torpedo's to be or what color is Caswell going to have them, or i imagine we can paint them ourselves? plus the torpedo doors, should they be metal or use the plastic that comes with the submarine it self, or is this un decided. Any comments also from the peanut gallery.Blah


Heres a tip - no doors.
Next tip- WAITCensored

[He Who Shall Not Be Named]

So David,
what is the best color for these torpedo's to be or what color is Caswell going to have them, or i imagine we can paint them ourselves? plus the torpedo doors, should they be metal or use the plastic that comes with the submarine it self, or is this un decided. Any comments also from the peanut gallery.Blah

The US Navy started painting them a light green when the MK-16 (do you really want to call SubRock a 'torpedo') was introduced to the fleet. And from the 60's the Soviets did the same. So our weapons will be green.

You talking muzzle door or shutter door?

David,

[deepseadiver]

well David,
I was thinking of shutter doors but which one would be the better way to go in your professional out look of things. I guess with my Gato it has shutter doors , but just the fact it has torpedos and no doors at all is fine with me. as MR slat has mentioned no doors at all.

[deepseadiver]

Heres a tip - no doors.
Next tip- WAITCensored

No doors good :D

dont get all That Stinks on me i have plenty of patience theres nothing wrong in asking a question. :)

[He Who Shall Not Be Named]

well David,
I was thinking of shutter doors but which one would be the better way to go in your professional out look of things. I guess with my Gato it has shutter doors , but just the fact it has torpedos and no doors at all is fine with me. as MR slat has mentioned no doors at all.

The shutter doors would have the same anti-foul paint color as the surrounding hull (black or red, depending on the yard, theateur of operation, and time).

Keep it simple: no doors.

David,

[deepseadiver]

yes i like that KISS less things to go wrong I will drink to thatI'll drink to THAT!

[Slats]

No doors good :D

dont get all That Stinks on me i have plenty of patience theres nothing wrong in asking a question. :)


hey mate just having some fun....have you seen my list of questions for David re this?!!!

J

[deepseadiver]

hey mate just having some fun....have you seen my list of questions for David re this?!!!

J

Then i wont feel to bad because i have asked the Grand Master to come out of his cave to ask many questions my self. Thank goodness some one else is asking to, but i know Patience is priceless:rolleyes:

this is just a thought that came to me I wonder if the torpedos, has enough thrust coming out of it's tube that it may be able to push open a shutter door on it's own like a small week rubber band that would allow it to escape but the door closes on its own after it leaves the chamber. But on the other hand Keep it simple no doors.:)

[He Who Shall Not Be Named]

Then i wont feel to bad because i have asked the Grand Master to come out of his cave to ask many questions my self. Thank goodness some one else is asking to, but i know Patience is priceless:rolleyes:

this is just a thought that came to me I wonder if the torpedos, has enough thrust coming out of it's tube that it may be able to push open a shutter door on it's own like a small week rubber band that would allow it to escape but the door closes on its own after it leaves the chamber. But on the other hand Keep it simple no doors.:)

The sliding shutter doors on most American designs don't lend themselves to being pushed open, instead -- without a dedicated operating linkage, working off the muzzle door toggle -- they act more like a 'check valve'. Sorry, no easy way to open the shutter door via torpedo motion alone, you would have to provide a trip to open it, that trip activated by the same linkage that shifts the tube from 'battery' to 'fire'.

David,

[deepseadiver]

David,
it sounds complex indeed no doors that's for sure to many linkages, besides it's going to look cool when you see the inside with no doors all painted, with a deadly green torpedo just sitting there ready to be fired.:cool:
Jim

[He Who Shall Not Be Named]

David,
it sounds complex indeed no doors that's for sure to many linkages, besides it's going to look cool when you see the inside with no doors all painted, with a deadly green torpedo just sitting there ready to be fired.:cool:
Jim

That's what blows up my skirt too.

David,

[Kazzer]

That's what blows up my skirt too.

David,

Huh! Not satisfied with pink panties, now he wants a skirt!

It can be arranged! Any particular color?
Devilish

[toppack]

I knew Someone couldn't leave That one alone! :rolleyes:

[He Who Shall Not Be Named]

Huh! Not satisfied with pink panties, now he wants a skirt!

It can be arranged! Any particular color?
Devilish


Mike,

It's Sunday morning ... shouldn't you be in the yard, up a tree, pulling the wings off baby birds, or something?

David,

[Slats]

Leaving what colour the torpedo will come in to those without an airbrush…(come on guys – don’t like the colour – re-paint it!) :eek:

Here are a few questions of mine. Its not that I am inpatient, its just I tend to build relatively fast and these questions pertain to having my boats ready for the torpedo installation. In fact HMAS Rankin is progressing quickly and I intend from the get go to install the torp system in her. This means I might need to buy and build a new SD for her too.

First: the firing mechanisim.
Do we run a servo linkage out of the SD for this in addition to the electronic gizmo (sequencer)– you mentioned previous that plugs into the RX?
Is RX 5 volt power the only power required for the squencer unit?

If NO for the servo linkage, and its some sort of electrical device plugging from the mechanism back to the SD – how is the electrical wires to the SD waterproofed?



The radio:
Which is the best ctrl from the TX – switch / dial / gimbal?
It is only 1 channel required right?



The 4 shots / tubes –
Can these be configured across the bow OR 2 per side like on a Permit or later SSN?



Torpedo equalisation and ballasting
Does the weight of a fully “propel” charged torpedo roughly equal the free flooded empty tube? Moreover if the shot gets charged in tube prior to release I take it there would be a negligible change in trim (to the bow for example if bow tubes are fitted) to compensate for the liquid propel being distributed in the torpedo forward.



Interior required space in the submarine for 72nd scale system
For a bow configuration?
For two per side like a Permit?
Size (length and diameter of 1/72 scale tubes)?
Size (length and diameter of 1/96 scale tubes)?




And something for my FFG and FFH(targets)
Can these warshots fire from tubes above the surface of the water?



Range of torpedoes in 1/72 and 1/96?
I also read a couple of years back the 1/96 shots actually went further than the 1/72 – was wondering if correct what the science was behind that.


Now that is a list of pain in the back end questions.:D

[deepseadiver]

Huh! Not satisfied with pink panties, now he wants a skirt!

It can be arranged! Any particular color?
Devilish
Mike are you trying to get the master cave man to go back to pink undies or both. :eek:

[deepseadiver]

Mike,

It's Sunday morning ... shouldn't you be in the yard, up a tree, pulling the wings off baby birds, or something?

David,

LOL LOL LOL that was a good one . That took the cake.

[Slats]

Boys can you do me a favour - drop the panty talk (noise) and get back on topic (signal).

Thanks
JohnI'll drink to THAT!

[deepseadiver]

Leaving what colour the torpedo will come in to those without an airbrush…(come on guys – don’t like the colour – re-paint it!) :eek:

Here are a few questions of mine. Its not that I am inpatient, its just I tend to build relatively fast and these questions pertain to having my boats ready for the torpedo installation. In fact HMAS Rankin is progressing quickly and I intend from the get go to install the torp system in her. This means I might need to buy and build a new SD for her too.

First: the firing mechanisim.
Do we run a servo linkage out of the SD for this in addition to the electronic gizmo (sequencer)– you mentioned previous that plugs into the RX?
Is RX 5 volt power the only power required for the squencer unit?

If NO for the servo linkage, and its some sort of electrical device plugging from the mechanism back to the SD – how is the electrical wires to the SD waterproofed?



The radio:
Which is the best ctrl from the TX – switch / dial / gimbal?
It is only 1 channel required right?



The 4 shots / tubes –
Can these be configured across the bow OR 2 per side like on a Permit or later SSN?



Torpedo equalisation and ballasting
Does the weight of a fully “propel” charged torpedo roughly equal the free flooded empty tube? Moreover if the shot gets charged in tube prior to release I take it there would be a negligible change in trim (to the bow for example if bow tubes are fitted) to compensate for the liquid propel being distributed in the torpedo forward.



Interior required space in the submarine for 72nd scale system
For a bow configuration?
For two per side like a Permit?
Size (length and diameter of 1/72 scale tubes)?
Size (length and diameter of 1/96 scale tubes)?




And something for my FFG and FFH(targets)
Can these warshots fire from tubes above the surface of the water?



Range of torpedoes in 1/72 and 1/96?
I also read a couple of years back the 1/96 shots actually went further than the 1/72 – was wondering if correct what the science was behind that.


Now that is a list of pain in the back end questions.:D

WOW that s some serious questions . But they are good ones indeed know im curious also
Jim .:D

[deepseadiver]

I think a four shot system is going to be awesome guys just awesome!!! Its going to really turn heads big time. Big seller thats for sure :D:D

[Slats]

Yes it will be and you can bet that it will be a masterpiece what David turns out.I'll drink to THAT!

The only other question I have for David and Mike relates to price and quantity of warshots - which I am sure won't be too far away. Its worth the wait guys and I hope by years end to have two new boats running this system.

In the meantime its build build build - I'd like to be a position that Rankin (my Collins is completely built (minus the SD set up) and ready for new SD and Torpedo kit.

J:)

[deepseadiver]

Boys can you do me a favour - drop the panty talk (noise) and get back on topic (signal).

Thanks
JohnI'll drink to THAT!

Ok back to torpedo talking , with plenty of gas ill drink to that. I'll drink to THAT! Jim

[Slats]

On the subject of colour - I plan on airbrushing the heads flourescent orange. I have seen some Mk48's on Rankin that have an orange flourescent forward bit and then a green main body. This colour will be easier to find, and an obvious point to finding them easy is to fire them towards the shoreline.

J

[Slats]

Test shot from Collins Class Farncomb of mk48...

http://en.wikipedia.org/wiki/File:Mark_48_Torpedo_testing.jpg


And the reference I made to an orange band -is for test shots (no warhead).
Apparently all mk48s that have a business end are like the one shown here are mainly green. The cap at the front gets removed before firing.
This one is being loaded into Rankin....from the defence.gov.au website

http://forum.sub-driver.com/picture.php?albumid=13&pictureid=127

Okay David how about that long list of questions I posted- I'll shut the proverbial up if its too soon.

Best
John

[He Who Shall Not Be Named]

Test shot from Collins Class Farncomb of mk48...

http://en.wikipedia.org/wiki/File:Mark_48_Torpedo_testing.jpg


And the reference I made to an orange band -is for test shots (no warhead).
Apparently all mk48s that have a business end are like the one shown here are mainly green. The cap at the front gets removed before firing.
This one is being loaded into Rankin....from the defence.gov.au website

http://forum.sub-driver.com/picture.php?albumid=13&pictureid=127

Okay David how about that long list of questions I posted- I'll shut the proverbial up if its too soon.

Best
John

The previously mentioned 'international orange' nose of that MK48 denoted it as an exercise shot. The gray nose seen in the above picture is a conformal protective 'condom' used to protect the sonar transducer window, and is removed before tube loading the weapon. The yellow band indicates that this unit is configured as a war-shot.

I want to give those carefully crafted torpedo/launcher questions (you pain in the ass, you!) proper answers; I'll address them this afternoon, John. Good stuff, deserved of consideration.

David,

[deepseadiver]

John,
That ship broke in two wow those torpedo have a serious punch that was a think ship and it split it in half like a toy :eek: how much explosives are in one . if i was on board and saw that coming at me praying won't help that's for sure im dead..

http://en.wikipedia.org/wiki/File:Mark_48_Torpedo_testing.jpg

[Slats]

John,
That ship broke in two wow those torpedo have a serious punch that was a think ship and it split it in half like a toy :eek: how much explosives are in one . if i was on board and saw that coming at me praying won't help that's for sure im dead..

http://en.wikipedia.org/wiki/File:Mark_48_Torpedo_testing.jpg

Remember its not contacting the ship, the damage is done by proximity under the hull and by two forces - expanding pressure wave ahead of expanding explosive pressure bubble. This breaks the targets back by updraft initially and then as the upward forces collapses the hull is then back snapped downward.

That damage was done with a Mk48 Mod7. We are in the process of getting an upgrade now for the RAN to some version of the ADCAP.

J

[deepseadiver]

Remember its not contacting the ship, the damage is done by proximity under the hull and by two forces - expanding pressure wave ahead of expanding explosive pressure bubble. This breaks the targets back by updraft initially and then as the upward forces collapses the hull is then back snapped downward.

That damage was done with a Mk48 Mod7. We are in the process of getting an upgrade now for the RAN to some version of the ADCAP.

J

Thanks John,
just explaining that to me is incredible it makes a lot of since using pressure forces. If i am correct creating like you said a huge bubble, underneath the ship, in the middle putting presure lifts the ship up plus having a bubble underneath the keel ,theres is no sapport so the weight of the ship cracks itself in two. What's amazing is taking a huge ship of war and just breaking her back like it was a pretzel, astonishing .

Jim

[toppack]

I found that by removing the insulation-sleeve from AAA rechargable batteries, they fit perfectly inside a 7/16"OD brass tube, so that will be my power-source for my torpedos. :)
I'll only need 1 battery per torpedo so the sleeve removed is no problem, I can use the torpedo's tube as the negative conductor.

[Subculture]

Will that give you enough poke? Most motors need 3 volts at least to produce reasonable power and torque.

[toppack]

Will that give you enough poke? Most motors need 3 volts at least to produce reasonable power and torque.
I think so, these 7.mm motors I'm trying are turning a very high RPM at 1. volt with no load. If I can keep the prop-shaft-seal friction low (going to try 2 O-rings, with silicone-grease between them, first), that 1.2V battery should do the job.

[Slats]

Rick been there done that,
and it flopped. Thumbs Down

My electric torpedoes had one big problem - flotation
You will find you need as Andy put it - around 3 volts for enough torque transfer to the prop in the water. This is where the weight problem creeps in, along with torque roll which in my scale was too little to have counter-rotating props (which I countered to some degree with weight distribution and fin set up.

Back in the 90s there was a couple of great large scale (1/24 and 1/32 i think) electric torpedo kits you could buy - no more of these around - these were works of great craftsmanship, counterrotating props etc etc, the real deal.

Why do I like gas-
Its simple.
There is no flotation problem
There is no battery requirements
There is no bearing
There is nothing on each shot to water proof
There is no kill switch requried
There is likely (awaiting confirmation from David) no or very little ballast impact on the boat.

The latter problem is potentionally huge with a battery (weighty torpedo).
Don't believe me do this test:

Take a sub that you operate regularly. Take her down in to PD. (Tank should be full of water.

Take one AAA battery plant it via rubber band on the nose - what happens to your trimmed out boat? Its now a little nose heavy - ok multiply that by say a factor of say 8 to represent 4 medium to small type 3 v powered electric torpedoes - you now have a boat that when "armed" is in a completely different ballasted state to when not loaded with torpedoes.
To over come this you need some way of equalising the weight of the loaded tubes when the tubes are unloaded. Its not impossible but the only way I did this was by making the torpedo overscale in length and made each torpedo positive. I had a separate tank on board to pump in /out water to counteract the release of each torpedo.

In short the system was complicated and craptacular; and was uninstalled from my Permit PDQ.

Rick, stop flogging this dead horse mate - IMO you are wasting your time and resources.

Just wait for the system - David will answer my question list (he is kind of busy):) and you will be blown away as to just how good the system is.

Best
J

[Slats]

Forgot to mention another reason why I like Gas...

wake trail left by bubbles very realistic.I'll drink to THAT!

J

[toppack]

I really appreciate the suggestions, But I've seen battery powered, single-prop, torpedos that work and operate the way I want mine to. So I know it can be done.
Now wheather I'll be able to construct them with one good hand is another concern but i want to try for several reasons. The biggest ones being that I like to create my own designs and fabricate them and the other being that I know I'll not be able to afford David's creation, since he's going to be very proud of it, and rightfully so. :D LOL
Thanks,

[Slats]

I really appreciate the suggestions, But I've seen battery powered, single-prop, torpedos that work and operate the way I want mine to. So I know it can be done.
Now wheather I'll be able to construct them with one good hand is another concern but i want to try for several reasons. The biggest ones being that I like to create my own designs and fabricate them and the other being that I know I'll not be able to afford David's creation, since he's going to be very proud of it, and rightfully so. :D LOL
Thanks,

Rick - have you got a link to the torpedoes you mention?

Next - I only call it a deadhorse as I have been in this game a long long time.
In fact the Australian Subregatta (every 2 years) is a torpedo fest - all are gas and for the reasons I have spelled out. That regatta brings several hundred years experience to it.

I am not knocking innovation or discovery - you do what you want - but a lot have tried what you have and are attempting, some following the route you are documenting and have got it wrong more for the reasons of physics than lack of effort or resources.

Remember here, the problem is not just simply building the torpedo, it’s the release system, the integration with the boat etc etc.

I'll be happy to give you congratulations for your efforts and success. It takes guts to keep going especially with just the one hand. Indeed well done that you are in this hobby!

As far as affordability goes mate – lets see what the price is first. Indeed how do you know you can’t afford it unless you know the prices, which I understand have not been released? All too often in this RC sub game, I see people (particularly the new guy) thinking that they will build their own boat and WTC to save money. For most, in the end, the duplication of costly errors of inexperience add much more cost than buying off the shelf. Been there done that too.

Best

John:)

[toppack]

Yes, We will see.
I'll try fo find those videos of working torpedos again.

[Slats]

Rick what subs are you running?
J

[toppack]

The Revell Gato is the one I've completed.
I also have Revell U-boat and the fiberglass T-class in the works.
Most of my RC ship model building experience is with surface ships, 17 operational, and I'm really enjoying learning about subs. :)

[Slats]

well I am sure David will confirm it, but his system I think should fit the Revell Gato.

J

[He Who Shall Not Be Named]

I really appreciate the suggestions, But I've seen battery powered, single-prop, torpedos that work and operate the way I want mine to. So I know it can be done.
Now wheather I'll be able to construct them with one good hand is another concern but i want to try for several reasons. The biggest ones being that I like to create my own designs and fabricate them and the other being that I know I'll not be able to afford David's creation, since he's going to be very proud of it, and rightfully so. :D LOL
Thanks,

Substitute the battery with an electrolytic capacitor and you're home free.

David,

[Slats]

Substitute the battery with an electrolytic capacitor and you're home free.

David,

God he's good. :)
By doing so - you can not worry about a kill switch as the full discharge can be dumped into the motor - so the torp just stops when its out of fuel. Just need to figure out which electrolytic cap would suit the motor and desired torque for best effect.

The weight issue - gone too.

You just need to:
-counter the torque roll
-build a release mechanism (you could use a reed switch thats NO and trigger switch / circuit closure and motor start via rare earth magnet on a push rod that comes along side the torpedo near the reed switch).
-work on a charging mechanism

David is there nothing you don't know.:D


J

[He Who Shall Not Be Named]

I know that I better give credit where credit is due: Dan Kachur, out of Canada, one of the best builders and operators in this game today. He's done effects work for the Canadian film industry (X-files is one credit he has).

He perfected the electrolytic torpedo years ago and they have all the attributes you observed, John.

He sent me a video of his torpedoes -- fantastic work!

David,

[Slats]

Have just seen in the mall here an application that might be worth studying Rick
Those tiny IR helicopters run on these caps.

The IR TX doubles as a charge station for the helicopter
The helicpoters feature tiny motors (similar to what you have posted)
The helicopters have counter rotating blades....

So there is the ingredients of what I would study to take the electric warshot further.

Now David how about those pain in the butt questions mate?

J

[Subculture]

I think you'll find the little helicopters use small single cell li-po's- the ones I have do.

You can use an ultra capacitor for power, these are more widespread now, and under constant development- they're looking to fit them to electric cars.

[Slats]

I think you'll find the little helicopters use small single cell li-po's- the ones I have do.

You can use an ultra capacitor for power, these are more widespread now, and under constant development- they're looking to fit them to electric cars.

Andy,
thanks for this.......any ideas for what cap would be useful for a scale warshot or around say 1/72?

I'm still going gas with David - but I'd still like to know.

J

[Subculture]

You have something like this-

http://www.maxwell.com/pdf/uc/datasheets/PC_series_1003996_rev8.pdf

However, they would only suit larger scale torpedos.

There are some truly tiny Li-pos available nowadays with impressive amounts of charge, and I would look at those. I reckon you could get down to 1/72nd scale with an electric torpedo, 1/96 scale would be difficult.

You could switch them on and off using reed switches and an electro magnet via a small microcontroller feeding a MOSFET to the little motor. the same microcontroller can be programmed to feed the motor for a specified time (say 5 seconds).

This stuff is so small it could all be mounted inside the torpedo. The electromagnet would be mounted inside the submarine and switched via a spare channel.

[toppack]

Yes, I experimented with capacitor powered torpedo motors. This was discussed before in this thread, I think.
I found that they would have an even shorter propulsion range than gas does.
Not what I want!

[Subculture]

What amount of capacitance were you running, and what were the size of the torpedos and motors powering them?

For a small torpedo you should be able to get at least 30 seconds of running (how much range do you want!).

[toppack]

As stated earlier in this thread, I want to be able to launch from middle of pond to shore, at least several times before having to recharge Anything. :) A 3A battery, on these motors, should be able to do that and then some. I don't want to have to retrieve any from middle of pond. I want them to land at my feet, ready to go again. :)
As stated earlier in this thread, I'm making a tray with built in deactivation magnets in it, to turn off motors as they are retrieved on shore, to be ready to reload.

[Subculture]

Yes, okay, but my response was chiefly directed towards John's request for a system small enough for a 1/72 fish.

Here's another link to some suitable caps http://media.digikey.com/pdf/Data%20Sheets/Panasonic%20Capacitors%20PDFs/HZ%20Series.pdf

[Slats]

Andy or maybe Kevin,
any ideas of what a basic circuit would look like and components involved?
Yes I know I ask a lot but am electronics ignoramus and want to know more.

J (resident pain)

[Subculture]

Actually the circuit that Kevin has used for the little air pumps would be a good start. The firmware could be adapted to cater for a different application.

At a minimum for a time controlled electric fish, you'd need a switched source, this could be a MOSFET or an ordinary transistor switched from the microcontroller.

If the former, you would ideally use a logic level MOSFET to avoid having to use a separate driver, unfortunately these are tricky to source in small quantities (at least they are here in the UK). An ordinary transistor is easy to source, but less efficient. In this instance however the 0.6 volt diode drop is not necessarily an inconvenience, as pager motors are designed to run off about 4-4.5 volts.

You would want a couple of super caps to give 5 volts, and a voltage regulator for the benefit of the microcontroller.

You will also need either a small reed switch, or possibly a hall sensor to detect when you want the fish switched on.

All sounds a lot, but with surface mount components, it will all be tiny. Your soldering skills will have to be good, and you would need to make your own PCB.

I would use a Picaxe microcontroller- they're very easy to code, and have the routines needed already built in. They're inexpensive too as they're just PIC chips with a bootstrapped code.

Inside the submarine, you would need an electromagnet. Winding a few coils of wire around an old nail would do the trick. This could be switched using a relay or solid state switcher of some description.

[redboat219]

Going back about those torpedo doors. David said "Keep it simple:no doors."

I was wondering. Would having all those hull openings in front have any effect on how the boat handles specially at high speed?

[He Who Shall Not Be Named]

Going back about those torpedo doors. David said "Keep it simple:no doors."

I was wondering. Would having all those hull openings in front have any effect on how the boat handles specially at high speed?

Nope.

David,

[toppack]

Going back about those torpedo doors. David said "Keep it simple:no doors."

I was wondering. Would having all those hull openings in front have any effect on how the boat handles specially at high speed?

I'm not trying to argue with David but,
If we're talking about Mach-speed or Warp-speed here, It will! :D LOL :D
It may even limit the speed to Under 500.MPH! :eek:

[KevinMc]

Hi guys!

I agree with Andy- if you want to do a timed-run electric torpedo, learning about microcontrollers is definitely the way to go. I can't speak for the Picaxe, but the baseline PIC's that they're built from are fantastic. Microchip (PIC's manufacturer) also has the smallest micro available in the PIC10F series - it would be a tight fit but you could get one in to a 1/72 torpedo. (I dunno how you'd float it though!)

As for the question of torpedo tube (shutter) doors, I guess I'm a masochist- my OSCAR's getting her tube doors right now.

[redboat219]

Check out these videos:
http://www.youtube.com/watch?v=89zlFbmSy18&feature=channel

http://www.youtube.com/watch?v=PANHv4LyYEo&feature=channel

http://www.youtube.com/watch?v=RpCLNrP5BSE&feature=channel

http://www.youtube.com/watch?v=Ky2Ra02pyPk&feature=channel

http://www.youtube.com/watch?v=yYlgnIkKkl4&feature=channel

[deepseadiver]

The video show the torpedoes, how they are made. But they do not show torpedoes, launching from the submarine, Only the rockets what a shame.:rolleyes: I want to see the torpedo do there stuff. The rockets would look better if they did not spiral around, they need to go straight up. All well it's the effort that is made is whats nice. I hope those rockets do not one day spiral out of control and injure a child since they don't fly straight just an observation :)


Jim

[toppack]

Yes, Rocket launches should follow the same rules and laws that fireworks displays do, because that's really what they are.

[deepseadiver]

Yes, Rocket launches should follow the same rules and laws that fireworks displays do, because that's really what they are.

thanks for the sapport ! I do not want my kids around it, like you said its a fire work . I dont want to see any ones kids hurt from something like this. Being a costee i think alot of saftey thats all. :)

[Tutor]

come to Canada, model rocket rules are.

5 miles from an airport
no great then 30 degrees off vetrical
must have recovery system , ie, shoot, tumbel or glide
any thing over 5000 feet you have to file a flite plan( man is fun to do)

and thats it.
oh ta, use commen sence.

Tutor

[Slats]

come to Canada, model rocket rules are.

5 miles from an airport
no great then 30 degrees off vetrical
must have recovery system , ie, shoot, tumbel or glide
any thing over 5000 feet you have to file a flite plan( man is fun to do)

and thats it.
oh ta, use commen sence.

Tutor

Its pretty much the same in Australia.
My on board VLS systems of 72nd scale targets use Mirco rocket engines as these are scale for SM2, Harpoon, and are overscale for evloved Seasparrow. Nonetheless I have had to mount these within VLS silos, my Harpoon cannisters I am putting on my Anzac frigate are around 35 degrees off vertical and to be within the law I either adjust the pitch (out of scale), or keep the system within the VLS (vertical).

Now that's rocketry aside lets get back on to torpedoes.

[deepseadiver]

I can live with those kind of rules sounds like they have conditions to reduce any injurys.

Jim

[deepseadiver]

a very expensive version of a torpedo system from japan

http://www.youtube.com/watch?v=1aDDlCHjewc

[Slats]

Leaving what colour the torpedo will come in to those without an airbrush…(come on guys – don’t like the colour – re-paint it!) :eek:

Here are a few questions of mine. Its not that I am inpatient, its just I tend to build relatively fast and these questions pertain to having my boats ready for the torpedo installation. In fact HMAS Rankin is progressing quickly and I intend from the get go to install the torp system in her. This means I might need to buy and build a new SD for her too.

First: the firing mechanisim.
Do we run a servo linkage out of the SD for this in addition to the electronic gizmo (sequencer)– you mentioned previous that plugs into the RX?
Is RX 5 volt power the only power required for the squencer unit?

If NO for the servo linkage, and its some sort of electrical device plugging from the mechanism back to the SD – how is the electrical wires to the SD waterproofed?



The radio:
Which is the best ctrl from the TX – switch / dial / gimbal?
It is only 1 channel required right?



The 4 shots / tubes –
Can these be configured across the bow OR 2 per side like on a Permit or later SSN?



Torpedo equalisation and ballasting
Does the weight of a fully “propel” charged torpedo roughly equal the free flooded empty tube? Moreover if the shot gets charged in tube prior to release I take it there would be a negligible change in trim (to the bow for example if bow tubes are fitted) to compensate for the liquid propel being distributed in the torpedo forward.



Interior required space in the submarine for 72nd scale system
For a bow configuration?
For two per side like a Permit?
Size (length and diameter of 1/72 scale tubes)?
Size (length and diameter of 1/96 scale tubes)?




And something for my FFG and FFH(targets)
Can these warshots fire from tubes above the surface of the water?



Range of torpedoes in 1/72 and 1/96?
I also read a couple of years back the 1/96 shots actually went further than the 1/72 – was wondering if correct what the science was behind that.


Now that is a list of pain in the back end questions.:D


Adding to my above list of painful questions for David is:

Transportablity / Transferability
Will the torpedo system be transferable from boat to boat in much the same way a SD can be shared amongst similar sized models?

To clarrify, I'd imagine that you would install fixed tubes inside a model, but was wondering if the these could be a sleave set up where by the torpedo tubes containing the torpedoes themselves could sleave into a greater outside diameter tube fixed in each boat, there by allowing the whole torpedo system to move from one boat to another of the same scale?

[He Who Shall Not Be Named]

John,

You're questions (the early set and current) are relevant and deserved of answer. I swear, I'm not ignoring you, I've just been busy with other things of late. I'll address these good questions soon.

David,

[Slats]

John,

You're questions (the early set and current) are relevant and deserved of answer. I swear, I'm not ignoring you, I've just been busy with other things of late. I'll address these good questions soon.

David,

David,
I certain don't think that you are ignoring me. You have proven time and again to be a man of your word and you will provide and answer and I am very happy to wait
I just added that question as it sprang to mind.
Please do not feel hassled mate. You take as much time as you need.
Your the hardest work man in this whole dam Navy!
Best

John (serial torpedo system pest)

[Kazzer]

David,

Please do not feel hassled mate. You take as much time as you need.
Your the hardest work man in this whole dam Navy!
Best

John (serial torpedo system pest)


John! John! What AM I to do with you? Don't tell him stuff like this. Tell him to get his behind off the sofa and hurry up!!!Crack That WHipCrack That WHipCrack That WHipCrack That WHip

[He Who Shall Not Be Named]

David,
I certain don't think that you are ignoring me. You have proven time and again to be a man of your word and you will provide and answer and I am very happy to wait
I just added that question as it sprang to mind.
Please do not feel hassled mate. You take as much time as you need.
Your the hardest work man in this whole dam Navy!
Best

John (serial torpedo system pest)


LOL. Thanks for that (now ducking for cover, Mr. Caswell will shortly be on the phone with another reaming). Today I'm scrambling to finish the written instructions for the kit version of our 3.5 mod 2 SubDriver. It never ends ...

David,

[deepseadiver]

BlahBlahBlahit's been to dam quite here i guess everyone is all talked out. I will figure out something interesting to mention

[toppack]

BlahBlahBlahit's been to dam quite here i guess everyone is all talked out. I will figure out something interesting to mention

We were patiently waiting for pictures of the New Torpedos you Made! :D
Have you let us Down Again?! :D

[He Who Shall Not Be Named]

I've allocated an hour a day to continue the 1/72 torpedo launcher 'final version' Should have something to report in a week or so. Film at 11.

David,

[Kazzer]

I've allocated an hour a day to continue the 1/72 torpedo launcher 'final version' Should have something to report in a week or so. Film at 11.

David,

Oh!Yea? So now you have 25 hours in a day? :) Get back to work!Crack That WHipCrack That WHip

[deepseadiver]

We were patiently waiting for pictures of the New Torpedos you Made! :D
Have you let us Down Again?! :D

me me i could not figure out one of those things if my life was betted on it .:D:D oh thank goodness we have David , to come to the resque.:)

Take you time David im sure it will turn out great ! Oops did i say that oh boy im in trouble know.



jim

[Nuke Power]

Ha ha ha ha ha ha ha ha ha

[Nuke Power]

Oh!Yea? So now you have 25 hours in a day? :) Get back to work!Crack That WHipCrack That WHip

Get to work slave

[toppack]

Don't Mind their Rude, Crude ways folks. :rolleyes:
They Really care. :)

[Nuke Power]

Oh I have seen the working system before. It is insane. Took me a few minutes of tinkering to even remotely reverse engineer the thing. GIve that man some time this is not some simple thing. Especially since he will have to mas produce the item quickly and make it easy for the non mechanically inclined buyer to understand.

[deepseadiver]

Oh I have seen the working system before. It is insane. Took me a few minutes of tinkering to even remotely reverse engineer the thing. GIve that man some time this is not some simple thing. Especially since he will have to mas produce the item quickly and make it easy for the non mechanically inclined buyer to understand.

yep thats why David needs to take his time to get it right for those people that do not understand mechanically inclined engineering :D

[He Who Shall Not Be Named]

The new torpedo tube design is made possible by a very, very small solenoid-valve combination just identified by Mr. Caswell, who got samples to me a week ago. The solenoid is used to actuate the torpedo tube, releasing the weapon. The new torpedo tube design eliminates the external firing valve mechanism and manifold -- torpedo tube actuation energy comes from tapping a small portion of the Propellant charge within the weapon at the instant of launch. Deriving launcher actuation gas from that source eliminates the need for a separate torpedo tube gas service; launcher complexity and foot-print have been dramatically reduced. And simplicity breeds reliability.

The proposed design change has greatly reduced the size and complexity of the launcher system; the foot-print of the torpedo tube hardware has been cut in half over the previous system.

Mock-up this week. Initial proof-of-concept hardware in a few weeks. Details to be presented once we have a patent pending confirmation -- Mr. Caswell and I feel that enough proprietary engineering will be evidenced by the mechanism to warrant that.

Stay tuned.

[Slats]

The new torpedo tube design is made possible by a very, very small solenoid-valve combination just identified by Mr. Caswell, who got samples to me a week ago. The solenoid is used to actuate the torpedo tube, releasing the weapon. The new torpedo tube design eliminates the external firing valve mechanism and manifold -- torpedo tube actuation energy comes from tapping a small portion of the Propellant charge within the weapon at the instant of launch. Deriving launcher actuation gas from that source eliminates the need for a separate torpedo tube gas service; launcher complexity and foot-print have been dramatically reduced. And simplicity breeds reliability.

The proposed design change has greatly reduced the size and complexity of the launcher system; the foot-print of the torpedo tube hardware has been cut in half over the previous system.

Mock-up this week. Initial proof-of-concept hardware in a few weeks. Details to be presented once we have a patent pending confirmation -- Mr. Caswell and I feel that enough proprietary engineering will be evidenced by the mechanism to warrant that.

Stay tuned.

Superb David and Mike....yes do patent it - your IP is yours.

Best

John

[Kazzer]

Yes folks, it's a step closer! So, better think about clearing out the forward end of your boats, those air tanks etc will be getting in the way!
:)

[Tutor]

Front is clear and waiting for eight torp's,HaaHaaaHaa (evil laugh ), waiting with baited breath. also hoping they will work for my torpedo cruiser.

Tutor

Thanks for all your effort

[deepseadiver]

Hi David,
Its been quiet so i was just curious about how the process is coming along with the torpedo system. I have not herd anything including from Mike. whats going down lately has there been some road blocks :)

Jim

[Kazzer]

Everything is going according to plan. Specialist parts are being manufactured right now, expected delivery in 2 - 3 weeks, then any modifications to the electronics and the launchers will be made.

All you guys have to do is wait patiently and make sure you have all that junk out of the bows of your boats! :)

[Slats]

snip......

All you guys have to do is wait patiently and make sure you have all that junk out of the bows of your boats! :)

Yes the Collins and all other sub contstruction is presently on hold waiting for this. I plan not retro fitting, but installing within new constructions. If its only 2-3 weeks away do you have your patents in place? If so - some more details would be appreciated. Thanks
John

[deepseadiver]

HI Mike,
ok i will start cleaning out.

[Kazzer]

If its only 2-3 weeks away ---------
John


I meant 2-3 weeks for the specialist electronic parts to be made, then we have to link them to the other components. 1-2 months maybe before we have a commercial product.

[Slats]

I meant 2-3 weeks for the specialist electronic parts to be made, then we have to link them to the other components. 1-2 months maybe before we have a commercial product.

Mike,
for those of us that have boats in prep / conversion or on hold, as per your advice to clear out the fronts of our boats, could you and David please release the following (which should not jeapodise any IP you have before patents approval).

-1- The diameter of the tubes-
I have figured these from David's early posts to be around 1/2" in 1/72 scale. The half inch tube being the maximum diameter of the tube i.e. This is the tube diameter you would see from looking at the tubes exit point to the hull.

The workings of the torpedo (which we don't need to know about - although we'd like to), telescope inside the half inch tube? Yes / No?

Now can you tell me please if I install some half inch tubes in the bow of my boat whether or not this would be the right thing to do in prep for the system?


If so what length of half inch tube would you recommend?

2- How many tubes can we install?
previously David posted that this would be a four shot system, a latter post said that it could be nested together.

I would like to have 4 working tubes in my Collins (which has 6 tubes) and 4 in my Permit (which has 4).

Can the mechanism that fires the shots be configured to any number of tubes or is there a fixed number that needs to be assigned to the switcher?

Mike and David, I really do think that these 4 questions won't reveal too much of your product with respect to your IP and patent process (your call obviously), but I think these basics will assist those of us who have boats drydocked or underconstruction that are waiting for the products release.

Best

John

[Kazzer]

Mike,
for those of us that have boats in prep / conversion or on hold, as per your advice to clear out the fronts of our boats, could you and David please release the following (which should not jeapodise any IP you have before patents approval).

-1- The diameter of the tubes-
I have figured these from David's early posts to be around 1/2" in 1/72 scale. The half inch tube being the maximum diameter of the tube i.e. This is the tube diameter you would see from looking at the tubes exit point to the hull.

About 1/2"


The workings of the torpedo (which we don't need to know about - although we'd like to), telescope inside the half inch tube? Yes / No?
No working parts, gas operated propulsion system.


Now can you tell me please if I install some half inch tubes in the bow of my boat whether or not this would be the right thing to do in prep for the system?

No!




2- How many tubes can we install?
previously David posted that this would be a four shot system, a latter post said that it could be nested together.

Up to 10

I would like to have 4 working tubes in my Collins (which has 6 tubes) and 4 in my Permit (which has 4).

Can the mechanism that fires the shots be configured to any number of tubes or is there a fixed number that needs to be assigned to the switcher?

You can start off with ONE tube, and add to them as required. Switcher handles up to ten

[Slats]

Mike,
good info but, does the torpedo firing mechanism telescope into the 1/2 " tubes?

David,
can you provide us with any more info in preparation for this system?

Thanks

John