Q&A: What is the difference between RC airplane and RC helicopter motors?

April 24th, 2012 admin Posted in RC Heli Info | 1 Comment »

Question by TBICKIYA: What is the difference between RC airplane and RC helicopter motors?
whats teh difference in them, if i want to drive a propeller to create lift then what why does it matter if i use a RC airplane brushless motor to build my helicopter instead of a helicoptor brushless motor??

Best answer:

Answer by Mike1942f
Although not from experience with the motors, I would suggest that you will find that motors designed for use in RC planes will turn at much higher rpms than those designed for helicopters because making the heli motors slower would save a lot on gearing as the blades have to move a lot slower. Now recently they have come out with heli designs where there are 3 or 4 motors out on pylon mounts facing up and the blades are much smaller and turned directly and steering etc. is done with relative speed between the motors with gyro control and those motors are high speed like plane motors.

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One Response to “Q&A: What is the difference between RC airplane and RC helicopter motors?”

  1. nicc1p Says:
    February 14th, 2012 at 3:19 pm

    There isn’t any difference between heli and airplane motor. Just like all other motors, the KV and number of poles is different from 1 model to another. To know if you can use an RC airplane motor:

    1) make sure the mounting holes fits.
    2) make sure the pinion fits.
    3) make sure the motor is rated sufficiently for the correct power it is suppose to deliver
    4) make sure the weight of the motor is appropriate so that the CG remains at the correct spot
    5) make sure the motor will deliver the correct rpm

    It might be easier to use one of the proven motors rather than trying and risking structural damage to your heli. Do a search on runryder,com to see if the same motor has been used by another flyer.

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