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Great Planes - GPMG0243   735557302436 0735557302436
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Great Planes Pinion Gear 12T 3.8:1 Ratio
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Great Planes Pinion Gear 12T 3.8:1 Ratio
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Tech Notes
This is a Pinion Gear with a 3.8:1 Gear Ratio for the S280 Gearbox.
For use with the Great Planes Park Flyers.


Replace worn pinion gear or change your gear ratio


One brass 12 tooth pinion gear
One mini tube of Thread Locker to secure pinion to motor shaft


One T-280 motor
Installing pinion gear onto motor shaft


Outer Diameter: 6mm
Hole Diameter: 2mm


The higher number of teeth on a pinion gear results in higher speed
of your model. The fewer number of teeth gives more torque.
For T-280 motor, use GPMG0300.

JXS 12/01/00

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Phone: 217-398-8970
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Great Planes

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