How to Build an RC Battleship With Water Guns

Install the electrical hardware

• 1

  Attach the relay switch in your radio gear section using servo tape. This should be connected to to the receiver via the included cable.

• 2

  Attach the inline pump to a waterproof section of your hull interior. Use cable ties to secure the pump in place.

• 3

  Connect the inline pump to the relay switch load connectors via the jumper leads. Follow the instructions on the switch data sheet to ensure proper operation.

Install the pump hardware

• 4

  Drill a 6mm hole above the water line on your hull.

• 5

  Cut a 150mm length of silicone tubing with scissors. Feed it through the drilled hole and connect it to the input of the pump. The other end of the silicon pipe should be long enough to be submersed in the water.

• 6

  Seal the hole with silicone sealant. This should be left to dry for 12 hours.

• 7

  Cut a second 150mm length of silicone tubing. Feed this through the model cannon and connect it to the output of the inline pump.

• 8

  Drill a 2mm hole in the rubber bung and use contact adhesive to glue this into the silicone tubing at the end of the cannon.

Connect and test the system

• 9

  Connect the relay switch to the boat's power supply. If the boat operates at less than 12V, then use an optional 12V Yuasa 1Ah gel cell to provide power.

• 10

  Turn on the transmitter first, then the receiver. Submerge the boat in water.

• 11

  Activate the relay switch using the appropriate channel on your transmitter.

• 12

  Perform standard pre-use checks. Check that the water is being properly channeled through the pump and that no water is able to leak.