Motor 5010-750KV - 3-Blade Propeller - Thrust Test 

You may right. I will test it again with that condition

Hello, what propeller 14 inch use with 3S?

do you also use the generic 5010 motor? if yes then how's the performance? i've read somewhere on a forum that the size was up to spec but the performance was not. could you give some insight?

You might be right. Another test with not ground effect should be made.

ground effect on helicopter is made by down streamed air that bounce back from ground to flat floor of fuselage, i do not thing that here is that case, i think if you install grid as floor, it will need less power to lift weights because you will have no recirculation of down streamed air that rotates up and returns into prop from up, and it raises rpm and reduces efficiency because prop would make more lift with less rpm is air from up is stationary, but who knows, please test i am curious

I tried with another 12 in long two blades propeller. It caused too much vibration that I wasn't able to make it go high speed. This three blades propeller was really good. You're right.

the motor could be subjected to a voltage of 6 s. Have you tested the thrust with this voltage?

It depends on the load. At the extreme condition like in the video, with current 21A, it will drain the 5200mAh battery in around 15 min. (5.2Ah/21A = 0.25h)

Rpm of motor

Rpm of motor & maximum current to supply the motor

Propeller: 3x11x10, 3-Blades, Long: 11 in., Pitch: 10 in.,

@@musikbox2020 thanks so much!

Thanks 😅