latest test run was great with good speed until the boat caught fire from amps overload on wiring. Not sure of the speed what do you think.

check the video out

http://www.youtube.com/watch?v=01AOkOPMUIw

Boat set up 2 no 550 motors
2 no M4 prop shafts
2 no K40 props left and right
12volt NimH 3300mah battery pack

The boat hull slightly melted when fire broke out.

I am going to mod the smaller version of this boat before rebuilding the above boat.