Gearbox Noise - is it normal?
 

Just finished my first Electric ARF and am using the Great planes 5:1 ratio gear box (non bearing) on a Graupner 7.2v 400 speed can. On powering up the engine hums at low stick input before spinning the shaft and then the gearbox gives out quite a bit of gear noise when running.

As this is my first electric im interested to know if this is the norm for plastic gearbox operation.

Cheers
Aaron

RE: Gearbox Noise - is it normal?
 

Some gear noise is normal.

RE: Gearbox Noise - is it normal?
 

Some gearbox noise is normal. Question....did you lubricate the gears in the gearbox with lithium grease (white grease ) ? If you didn't, go back and do it. That will reduce the noise somewhat.