I'm a newbie in RC field..I am planning to construct my first Tricopter ever. Can anyone help me to find the power rating to select the motor for a tricopter?

I am at the beginning stage of construction. Arm length of frame: 50cm each. I need a thrust of about 2Kg -- nearly 666 gms for each motor.

  • $\begingroup$ Welcome! That, surely will depend on a number of design criteria, which you haven't mentioned - weight, size, power-source etc. Could you elaborate teh question, please? $\endgroup$
    – Andrew
    Aug 30, 2014 at 17:33
  • 1
    $\begingroup$ Thanks..I have added the details above. I just need the formula to calculate the power required to lift my tricopter. $\endgroup$
    – Shiv Ram
    Aug 31, 2014 at 21:04

1 Answer 1


This depends on what you want to do with your copter.

Hovering: 100-150 Watt/kg
ScaleFlight: 200-300 Watt/kg
Some chilling acrobatic flight: 350-400 Watt/kg
3D acrobatics 500+ Watt/kg
Hardcore 3D 1000 Watt/kg

Just take the real weight of your copter, calculate the total power and divide it by 3 (in your case)

I also have a source for this but i know only a German one: http://www.heli-planet.de/index.php?section=auslegung_von_e_motoren


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.