Originally Posted by
phildoggg
The motors free reved might hit those rpm, when i calculate rpm i use battery voltage of 3v/cell. If anyone does speed runs you will see the volts drop that low during a run. I have seen a video of a castle 2200 on 10s before. Also the gearing you are running should hold the rpm back also.
I did use much higher volts per cell in my calculations to be overly cautious as far as rpm potential. It's been awhile since I've seen any Eagletree graphs, let alone of a high draw setup (I miss that about RC-Monster) but I'm still surprised the voltage would drop that low. Sounds like boat territory where 2p (parallel) is needed to keep the voltage from dropping too much under load. Although running a higher voltage to start with will lower amp draw and keep the voltage higher. 10s on a Castle 2200? Really? I would've thought the windings couldn't take it for long and self destruct after a few passes. I still wouldn't bash that setup though!