Micro submarine

If you have an old Rc helicopter but you still want to use it, this is the thing for you!

Make sure that the helicopter you are going to use uses infrared transmissions and that it has two brushed motors or else it will not work, also water proof it so it doesn’t blow up.

Steps:
1. Dismantle the helicopter
2. Water proof the main board (nail polish works really well)
3. Make a hole in the carcass just before the “wing stem” and fit the main board inside the carcass and pop the motors in the motor holes (the wing looking things)
4. (Optional) put a rubber band on the inside ring so it can be sealed
5. Screw some screws in the holes and tighten them with a nut (the holes outside both halves)