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Great Planes - GPMG0220   735557302207 0735557302207
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Great Planes ElectriFly Gearbox T400 1.7:1 Ratio Std
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Great Planes ElectriFly Gearbox T400 1.7:1 Ratio Std
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Tech Notes
This is a T400 Gearbox with 1.7:1 Gear Ratio and uses Standard Bushings.
For use with the Great Planes Park Flyers.


Designed for low noise and low maintenance, Park Flyer gearboxes used
with 400-sized motors get the maximum climbing power and flight
time from each mAh. A brass pinion gear is used for strength and
a nylon main gear for quiet, low friction operation.
Compatible with APC's light, durable Slo-Flyer Propellers
Economical bronze bushings for long-lasting sport use
Lightweight, aluminum, open gear case resists damage
Aluminum propeller adapter and washer
One year warranty


One assembled T400 gearbox 1.7:1 ratio
One brass 14 tooth pinion gear (not carried separately)
One 3 x 3mm pinion set screw
Two 2.4 x 5mm phillips head mounting screws
Two 2.5 x 5mm cap head mounting screws (uses a 2mm hex wrench)
One 6 x 14mm washer


Attaching the gearbox to the motor with a small phillips head
Install pinion onto motor shaft with a 1.5mm hex head wrench
Installing propeller onto shaft with a medium sized phillips head
screwdriver. (Use threadlocking compound to hold screw tight.)
Assembly of gearbox/motor unit onto an aircraft


Overall Length: 48.4mm (1.9")(back of gearbox to front of adapter)
Overall Height: 31.3mm (1.2")(motor shroud and gear case)
Overall Width: 26.1mm (1.03")
Mounting Holes On-Center: 17mm (.67")
Propeller Adapter Shaft Diameter: 6mm (.24")
Propeller Adapter Shaft Length: 9mm (.35")
Main Shaft Diameter: 4mm (.16")(the adapter mounts onto this one)


For T-400 motor, use GPMG0325.
JAL 1/12/01

– If you need more information, use these Great Planes resources –
Click Here: Manufacturer's Product Web Page
Email: airsupport@greatplanes.com
Web Site: http://www.greatplanes.com/
Phone: 217-398-8970
  Postal Address:
Great Planes

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Parts Compatibility
Parts Compatibility for Great Planes ElectriFly Gearbox T400 1.7:1 Ratio Std
This item is a replacement part for the following:
 LXWK46 Great Planes ElectriFly T-400GD ESC System 3.1:1 Ratio  (Parts List)
 LXWK47 Great Planes ElectriFly T-400GD System 3:1 Ratio  (Parts List)

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