Flying 2,850cc Cleanex, Clarence Dunkerley


The following note came in from Florida builder Clarence Dunkerly about the first flight of his Corvair powered Sonex airframe:




Today, about 11:00 am, a smoothly running Corvair aircraft engine strongly pulled the Cleanex and this old man skyward on its first flight from the Pompano Beach Airpark. What a thrill to pilot an aircraft and engine that Don and I built. Thanks for the Corvair colleges, Conversion Manual and support from others to make this a dream come true.

Clarence Dunkerley
Plans built Sonex 1306″


Clarence has been to a number of events over the years, but getting his engine running at CC#21 sticks out as particular memory. Clarence and his brother came to the College in Barnwell SC and put in the work to get their 2,850 running. Below are some photos of the day.


Clarence Dunkerley came from Florida to the College with his brother Don, who also assisted in building his engine. They had a very good time, especially when the engine fired up and ran great

Above, Clarence Dunkerley beside his 2850 cc Corvair. His engine features all of our Gold components, our 2,850 piston/rod/cylinder kit and a Weseman 5th bearing.  Photo taken at Corvair College#21.


Hats off to Clarence Dunkerley, the newest member of the ranks of Corvair pilots, builders who made both their airframes and their engines.

About William Wynne
I have been continuously building, testing and flying Corvair engines since 1989. Information, parts and components that we developed and tested are now flying on several hundred Corvair powered aircraft. I earned a Bachelor of Science in Professional Aeronautics and an A&P license from Embry-Riddle Aeronautical University, and have a proven 20 year track record of effectively teaching homebuilders how to create and fly their own Corvair powered planes. Much of this is chronicled at and in more than 50 magazine articles.

2 Responses to Flying 2,850cc Cleanex, Clarence Dunkerley

  1. Cam Roe says:

    Congratulations Clarence!

  2. Marian Miller says:

    Wow what an accomplishment! My congratulations to you. Best regards, Marian Miller

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