Model Forum / Radio Controlled / Water Models / December 2008

bigger propeller, dual motors,

upping the voltage?different proppellers?just a few suggestions, but I'm
as confused as youalso, reduce the weight... if you can

You should try a lipo battery lithium ion that gives you a big boost

It is hard to be specific without knowing what boat, motor, battery pack and
propeller you have.  Give us more info.

Generally, weight is your enemy and turning a prop with more pitch and/or
turning it faster will increase the speed.  To do so, you may need to
increase the voltage, and/or change to a motor with higher Kv and wattage
ratings (usually a brushless inrunner).  When you make such changes, water
cooling of the motor and ESC are generally needed.

FWIW, I have a SuperVee 27 which runs a brushless inrunner motor on 14.4
volts.  Stock, I ran in the mid 30 mph range.  Changing to a slightly larger
2 blade prop with greater pitch has put it over 40 mph.  However, I have had
to make improvements to the stock water cooling as both the motor and ESC
ran hotter.

Randy