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I need to calculate the performance parameters like cruise speed, endurance, range of my hexacopter but how can I do that!

Also, is there a way to obtain motor-propeller performance parameters without using a load cell?

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closed as too broad by mins, SMS von der Tann, Pondlife, Ralph J, fooot Jul 5 '17 at 14:25

Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

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    $\begingroup$ Welcome to Aviation.SE! I would suggest you start by reading the help center to get an idea for how this site works. You should generally try to ask one specific question at a time and provide as much detail as possible, including what you already know and what you have tried. As it currently stands, your question is likely to be closed. You could prevent this by using the edit button to improve your question. $\endgroup$ – Notts90 Jul 5 '17 at 10:29
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The way it's done in helicopters is by using power vs speed curves, comparing required power and available power. You would need to compute:

  • Rotor induced power
  • Rotor profile power
  • Fuselage aerodynamic drag power
  • Tail rotor & transmission power (probably not applicable in your case)
  • Power loss from friction, electrical heat etc.

enter image description here

Total power to remain airborne is a function of gross weight, air density, rotor state, aircraft state and velocity vectors.

There is a way to measure delivered power of an electric motor, I assume that is what your copter uses: measure delivered amperage for the applied torque, measure voltage over the motor for rotational velocity, and multiply the two for applied electrical power.

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