E-PPG Electric paramotor - problems

Some problems with system.
Motor: 12090 15kw 50kv
ESC: Flier Air 380A 22S
Batteries: 16S 20Ah

[@kornerederparamotor]

just a good piece of advice: when using relaitv large propeller that makes sense, the esc should have a freewheel in the software as well as in its hardware to handle the recuperation. the heavier the propeller is, the longer the delay must be before a brake can take hold. most of the propeller has to be destroyed by air drag. examples: a propeller with 1000 grams needs a delay of 1.5 - 2 sec at 2200 rpm. a propeller with 450 grams can be used with 1 sec delay. if you do not want to have security, you can of course start without a safety brake. However, the freewheel is necessary even then.

[@mikebrady2073]

My best guess is the bearings (bushings) is (are) overloaded. Possibly, the Shaft and/or Rotor is flexing/torquing.

[@RodrigoMedeirosBrazil]

Yes! Watch the new video.

[@freshnelly]

Jeez! Sounds like the bearings are gone, the shaft is wobbling not good!

[@RodrigoMedeirosBrazil]

I think is too much push in motor, I measure RPM, is more then 3500. My prop in 2800 RPM push 65Kg

[@freshnelly]

So what was it? Was it too much thrust?

[@RodrigoMedeirosBrazil]

YES, sync problem, see the new video

[@iantherealg]

is the prop balanced and mounted square on? Sounds like the drive shaft is wobbling once you hit enough RPM on the prop. It could be any number of things.

[@adarsfpv]

Which motor is that

[@RodrigoMedeirosBrazil]

abc aircrafts 12090

[@maximemergen5463]

unbalenced prop

[@MrFerna7]

Disable motor brake..

[@RodrigoMedeirosBrazil]

The break is disabled in these tests