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Thread: Cowling Vents Sea Plane Operation

  1. #1
    piperrocks2013
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    Default Cowling Vents Sea Plane Operation

    Somewhere I read, it helps to have Cowling Vents for Seaplane Operation?? Anyone go in further detail and or has heard of it or done it. I know my Oil Temps on Hot day can hit 220. I heard by adding the vents it cools the engine drastically.


    Jared

  2. #2
    Pacerfgoe's Avatar
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    Default Re: Cowling Vents Sea Plane Operation

    I think it is a pop-up vent in the top cowl in the centre strip between the two doors.
    Forrest Miller

  3. #3

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    Default Re: Cowling Vents Sea Plane Operation

    They are gills in the lower cowling - but you can improve cooling by 20 degrees by adding a radius piece of aluminum on the lower firewall to compliment the cooling lip and make a true venture of the exit area.

  4. #4

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    Default Re: Cowling Vents Sea Plane Operation

    the PA22S had vents in the upper cowling id guess they are on the cd

  5. #5
    Vagabondblues's Avatar
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    Default Re: Cowling Vents Sea Plane Operation

    I thought the vents were required to be installed with the drawing specified in the TCDS?
    Attached Images Attached Images

  6. #6
    Vagabondblues's Avatar
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    Default Re: Cowling Vents Sea Plane Operation

    I checked both prints for the PA22 as called out in the TCDS, drawings 14375 and 14450. No vents in the cowl. However there is a note for installing vents on the 22-160 only. In the past I did some research into the early pacers 115,125 and they had the vents in the cowl for the seaplane. The actual print for installing the vents is 12501, same print as called out in the note for the 22-160. During that research I found a supplier that has both vents ( 4 parts in total) in a new old stock condition. PM me if you want part numbers and the supplier information.
    Last edited by Vagabondblues; 01-20-2016 at 12:17 PM. Reason: added info

  7. #7
    Administrator Steve Pierce's Avatar
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    Default Re: Cowling Vents Sea Plane Operation

    Saw a Clipper that was built as a seaplane. It had gills like a Husky. I seem to remember seeing the drawing on the CD.

  8. #8
    Vagabondblues's Avatar
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    Default Re: Cowling Vents Sea Plane Operation

    on the drawing 12501 the clippers are located on the bottom cowl near the exhaust, and the 20 and 22 are located on the upper cowl.

  9. #9
    Administrator Steve Pierce's Avatar
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    Default Re: Cowling Vents Sea Plane Operation

    That is it. For some reason I thought they were different but it was a long time ago.
    http://www.texasantiqueairplane.com/...AAA%20News.pdf

  10. #10
    piperrocks2013
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    Default Re: Cowling Vents Sea Plane Operation

    thanks guys all look up the drawings give me idea what to do.

    Jared

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