Eflite Power 32 screams at high power settings
(Mint Hill, North Carolina)
I have an Eflite Power 32 which has never been flown, but is a couple of years old. I installed it in a scratch built Cub and took it to the field to practice high speed taxiing, as I am not yet qualified to try to fly this aircraft.
I have a 60 amp ESC and a 13 x 7 wooden prop is installed, all powered by a 2200 mAh LiPo battery. The motor has a high pitched scream at high power settings.
Thinking the bearings might have been defective I ordered and installed a new set of Boca Ceramic bearings. The noise is still present.
I tried resetting all of the motor related ESC settings with no positive affect. There are no clearance issues, and I have not operated the motor long enough to determine if there might be any overheating.