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Thread: Pancake shapped exhaust/muffler/heatexchanger - anyone recognize it???

  1. #1

    Join Date
    Sep 2013
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    NE Suburb, Twincities MN
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    Pancake shapped exhaust/muffler/heatexchanger - anyone recognize it???

    Anyone know anything about the exhaust, muffler, heat exchanger shown in the pics?
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    EAA 745 - White Bear Lake MN

  2. #2
    Hi Kim,

    Made by the Ryan Aeronautical CoÖ..

    Best,

    HT & V


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  3. #3

    Join Date
    Nov 2011
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    1,497
    Hey High Time, you are sleuth extraordinaire! Very well done. If you solve the mystery of the next thread "Farm Find", you'll be inducted into the Sherlock GA House of Rare Finds.

  4. #4

    Join Date
    Jul 2011
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    Clarklake, MI
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    The one in the photo is rusty so must be something other than stainless. A chinese knockoff perhaps???!!

  5. #5

    Join Date
    Oct 2011
    Location
    WA
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    928
    Looks like typical old stainless to me. Stainless mufflers are not entirely rust -proof.

  6. #6

    Join Date
    Sep 2013
    Location
    NE Suburb, Twincities MN
    Posts
    29
    Thanks Bill!

    The example shown to me must have been modified, because I did not see the input for the outside/cold air and the and output for the cabin/warm air. I will try and get a better look at it the next time I get a chance.

    What magazine did you find this in?

    Thanks again.
    EAA 745 - White Bear Lake MN

  7. #7
    Quote Originally Posted by Kim View Post

    The example shown to me must have been modified, because I did not see the input for the outside/cold air and the and output for the cabin/warm air. I will try and get a better look at it the next time I get a chance.

    What magazine did you find this in?

    Thanks again.
    Hi Kim,

    The example in your picture doesnít have the outer shroud installed. The shroud would have the inlet and outlet ports. Iím guessing that the gap at the top of the muffler flange allows heated air within the shroud to pass from one side (inlet) to the other side (outlet). This would maximize the overall heat output.

    I found the article in my old collection of Aviation Service magazines.

    Best,

    HT & V
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