nano spins out of control at full throttle

[e32lover]

Hi, Great forum! My Nano has developed this problem where only under full throttle it will spin wildly out of control nose left and crash. It seems to be fine unless at max throttle. What could potentially cause such a problem?

Thanks

[lespaulrob]

You might have a tail motor that's going out?

[ronj]

I would guess your main motor is going. At higher loads there could be a higher power requirement, reducing the power available to the tail motor. It could also be the tail motor failing. But given how often these main motors are failing I would replace it first. Worst case, you ave a spare.

[Rattler888]

also if you changed your tail motor and boom, stick a blob of glue on the tail motor plug to make sure it doesn't slip out mid flight

[tchilds]

a tail short could potentially cause such a problem.

pitch not level at mid stick could potentially cause a problem.

any number of tx settings could potentially cause a problem.

main gear/bearings improperly installed or split main shaft, any part of rotating assembly could potentially cause this problem.

bent tail shaft, shorted tail wires, etc, bent tail rotor that's super squish, so many things.

If it spins wildly out of control at full throttle and nothing else has changed or broken, I would resolder the tail wires or replace the tail. I've had a lot of issues w/the tails I make and learning how to do it and route them properly though, so I'm kinda biased on tail related issues. The stock ones are junk after a few crashes. Aftermarket ones can increase in weight a little, but not a lot. I can actually make upgraded wire tails for about same weight as stock now because I solder the wires straight to board which makes them much shorter even though its slightly thicker, heavier magnet wire.

Rubber insulated wire is insanely heavy, don't use it.

[mmuro10]

Did you ever figure out the cause and fixm