helimatt
Elite Veteran
Location: Lafayette, IN
| Kv rating is the unloaded rpm per volt applied, as Busher has stated. Multiply the kv number by the volts of the pack and loosely you get rpm of the motor. Multiply by the gear ratio and some "efficiency" factor ~80% or so (accounts for transmission losses, and blade drag) and you get the heli rotor headspeed at zero pitch.
I think that this motor (unless run through a reduction drive) is too fast for props unless you are looking for all-out speed machine. You'd need to run a small prop which will be very inefficient at producing thrust until you get to very high speeds. The motor might be okay for some ducted fans (probably too slow for those).
There are much better options for plank motors.
Never, ever, ever, ever give up. |
