we made a RC Boat for TATHVA(
http://f4k3url/aIWjaK ) and won 1st prize
.here i am posting some pics...
Description of components:
1)Brushless outrunner CF2812(maximum power @60 % efficiency 100w )
2)ESC 18A (inbuilt BEC)
3)4ch futaba tx and 6ch rx(72mhz)
4)small30*20 mm propeller()
5)futaba s3003 servo
6)some plywood thermocol and a LOT of super glue and insulation tape
our runtime was 10 seconds......with no obstacles hit....
any other details can be provided if anyone want......