Welcome to Great Plains Aircraft Supply Co.

If you have a need for Technical Information on your Great Plains engine or parts
please email your question to: info@greatplainsas.com

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Engine Kits and Parts

Front Drive Long Block Kits

Reduction Drive Long Block Kits

Type 1 - 1/2 VW Plans  

Type 1 Engine Parts
Carbs, Ignition, Intake,
Exhaust and Prop Hubs

Miscellaneous Parts
Instruments, Tools, Books, etc.

Easy Eagle 1 Plans  

Landing Gear, Hydraulic Brakes, Axles and Wheels
Now from O'Keefe Aero Ltd!

OKeefe Aero now supplies landing gear, wheels and hydraulic brakes for the Thatcher CX-4, Thatcher CX-5, Sonerai I, Sonerai II, Sonerai II Stretch, Easy Eagle and Dragonfly.

Sonerai Aircraft

Sonerai Works!
Sonerai Plans and Parts are now available from Sonerai Works!

Click here to check out the Sonerai Aircraft!

Contact Information

Great Plains Aircraft
Supply Co.

Tel 402 493 6507

greatplainsaircraft@outlook.com Office hours are 8 am to 5 pm
Central Time Zone
Monday thru Friday

Click here for Contact and Ordering Information!

Great Plains Aircraft offers an extensive line of VW based engine parts, accessory kits, and individual engine parts for VW powered sport aircraft.


Front Drive - Air-Cooled.

Direct drive, driven off the pulley end (Type 1 only) for standard aircraft configuration. The Front Drive engine turns counter clockwise from the cockpit in a tractor configuration. Wooden props ONLY must be used. This is the most popular configuration.

Reduction Drive - Air-Cooled.

Driven off the pulley end of the crankshaft. Available in 2.0:1 and 1.6:1 Drive Ratios from Valley Engineering. Drive Ratio 1.6:1 is for 72" to 74" props and the Drive Ratio 2.0:1 is for those aircraft requiring 80" to 84" props. The Reduction Drive can deliver over 100 takeoff Horsepower (depending on engine size) and 60 continuous Horsepower. The prop turns counter clockwise from the cockpit (tractor installation). Use of wood, composite or adjustable props. Fits Type 1 VW Only.

Check out our Reduction Drive Long Block Kits and Accessory Packages!

There are over 50 popular airframes world wide that are powered by VW based engines:

Here is a sampling...

VP-1, VP-2, KR-1, KR-2, KR-2S, Corby Starlet, Fisher Youngster, Easy Eagle Bi-Plane, Sonerai 1, Sonerai 2, Sonerai 2S, Legal Eagle, Double Eagle, Sonex, Xenos, Waiex, Onex, Thatcher CX-4, Thatcher CX-5, Fisher Avenger, Cygnet, Dragonfly, Flagor Scooter, Hummel Bird, Mini Coupe, Nieuport 11, Pober Pixey, Stewart Headwind, Teenie Two, SkyRanger, Benson Gyro, Brock Gyro, most Aerodrome replica aircraft, V-Max, Q2, BK-1, BK-1.3, Taylor Monoplane, Ultra Cruiser, Aerosport Quail, and the Jodel D-9. And don't forget the MOD (My Own Design).

 Why Choose GPASC? Front Drive Specs Reduction Drive Specs Installation Instructions
VW Powered Aircraft List Service Bulletins  Educational Books Link to Sterba Props!

Great Plains Aircraft Supply Co.
By Telephone 402 493 6507