My Boat stats

My Boat stats

total weight = 2900g
2 x 550 motors running single drive shaft, prop free running speed 25,000 rpm
batteries 12 volts, 3300mah, weight 640g
straight shaft with x45prop
estimated speed around 20mph
motor weight each = 200g
total cost of motors, shafts, prop other hardware, batteries = £70


my target is to replace the nimh battery packs with lipo packs, increase the rpm of the prop and increase the prop size to 50 with a 1.4pitch.
Target weight to achieve all up 2100g.

i would appreciate all other stats