Originally Posted by
RainClod
End travel on transmitter throttle settings. On a good quality brushless esc with a high PWM rate running at partial throttle is no big deal, when using proper cooling. We do it all the time on rc crawler jetboats very rare to go WOT.
Brushed esc's have/had a lot more issues with part throttle, although look at rc rock crawlers, constantly at part throttle with good cooling no problem.
My boats all have extensive cooling systems, my neo brushed motors even have both brush coolers and jackets.
I use full pack voltage to compute rpms so 2s is 8.4 hence the different math. I usually figure about 20% rpm loss under load on a surface drive boat but my neo magnet brushed motor barely drops.