Great Planes Gear Drive 28mm Motors

Tower Stock# GPMG0510  •  Manufacturer Stock# GPMG0510
Notes from our tech department:
This is the Great Planes ElectriFly Ammo 28mm Gear Drive.
This bolts directly to the ElectriFly Brushless Motor Mount (GPMG1255).


For 28mm Ammo Motors and most other 28mm In-runner motors
High-precision spur and pinion gear for quiet operation
Dual ball bearing-supported output shaft


One gear drive
All assembly hardware
Two different pinion gears 11T and 16T
40T and 50T spur gear
Collet style prop adapter


Attaching to the motor mount


Length: 2.4 (60.9mm) approx.
Width: 1.4 (35.5mm) approx.
Motor output shaft dimension: 3.175mm
Prop adapter shaft dimension: 5mm to 516-24
Gear ratios included: 2.5:1, 3.1:1, 3.6:1, 4.5:1
2.1:1 with 16T pinion and 40T spur
3.1:1 with 16T pinion and 50T spur
3.6:1 WITH 11T pinion and 40T spur
4.5:1 with 11T pinion and 50T spur
Weight: 1.2oz (34g)

rmb 12-23-06
update JAW 11911


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