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View Full Version : 4th Competition - Gizmos, gadgets, weird devices you've made or used.


  1. Working torpedoes
  2. Bow thruster
  3. Water tight motor housing
  4. Revell Gato working doors
  5. Perastaltic pump
  6. Waterproof Servo
  7. RC submarines built from Scratch
  8. 5" Gato/Balao deck gun
  9. More on Perastaltic pumps
  10. Voting for the competition