Last engine of Corvair Finishing School #5:


It’s Sunday near sundown, and I type this to the sound of Bill Hutson’s 3,000cc Corvair putting down a perfect test run outside. His Engine is destined for his Zenith 750 STOL.



Bill puts in the last checks on his 120HP Corvair. Friday night it was all perfectly prepared parts, now it is a running motor; but the real transformation is what he understands about every part inside. 30 years of doing this, and the moment a builders engine fires up, where his learning is confirmed, never gets old.




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.

3 Responses to Last engine of Corvair Finishing School #5:

  1. Lane Seidel says:

    Very glad it all went well on Bill’s run.

  2. David says:

    congratulations Bill!!!!

  3. Bill Hutson says:

    Mr. Wynne,

    The 3,492 mile road trip is finally over and my new Corvair 3.0L is safely stored away in the garage. Although the trip is complete, my journey is really just beginning. Thanks to you and the great folks from SPA, I went from never having built an engine of any kind, to a table full of perfectly prepared parts, to a running engine. All in three days! People like you, all the folks at SPA, and fellow builders like Lane and Tom, represent the very best in homebuilt aviation. Builders helping builders. It really was a “transformative” experience and given the chance, I would do it all again without hesitation.

    Thanks again to all who made this possible,

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