Photo Observation Contest.


Just for fun, see if your observation skills are sharp. Study the engine photo below and see if you can find the detail the builder initially missed on assembly at Corvair College #43 earlier this month.



The issue was corrected, and this engine put down a perfect break in run on my stand at the college. Use the comments section if you think you see it. Bonus points for the closest guess in minutes for how long it took to correct.




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.

12 Responses to Photo Observation Contest.

  1. Sarah Ashmore says:

    OK the heads are on the wrong sides, forward instead of aft!!!

  2. Sarah Ashmore says:

    OK I just saw the extra points question so I will hazard a guess of 45 minutes with an experienced hand helping out.

  3. Dave Hoehn says:

    I would think more like 15~20 minutes.

  4. Larry Nelson says:

    i may be going out on a limb here but that would make an interesting carburetor installation.

  5. Joe pringle says:

    No pushrod tubes

  6. David McBride says:

    10 min to swap the heads.

  7. tim hansen says:

    Sarah gets the cigar, but I will hazard a time estimate. 55 min. or so is my guess, but the real fun is that we all got to enjoy the learning opportunity. Here’s a clue: You can’t miss this on your own, it takes a group effort. Seriously though, thank you to the builder who had a good attitude, and an inspiring effort to make lemons out of lemonade, resulting in yet another successful test run. Way to go!

  8. Ed Lee says:

    Heads on reversed. Intakes pointed to the front. Not over an hour to correct.

  9. asschief9402 says:

    Good way to damage intake tubes and prop at the same time.

    60 minutes, with care so they are facing right direction next time.

    Dave Glassmeyer

  10. Stuart Snow says:

    Engine nose stand does not appear to have required .223 sized holes in it.

  11. Guy Bowen says:

    Ram effect

  12. Guy Bowen says:

    Maybe he was using Bing Carbs.

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