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Thread: 1937 Abrams P1 Explorer surveillance aircraft - photo

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  1. #1
    Supporting Member bruce.desertrat's Avatar
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    Quote Originally Posted by Toolmaker51 View Post
    Rear engine, with airborne version of Kort Nozzle (ducted propellor), seems logical approach to reducing prop noise. Fits right in era these gained traction for nautical applications.
    https://en.wikipedia.org/wiki/Ducted_propellor
    and/ or
    https://en.wikipedia.org/wiki/Ducted_fan
    This is just an artifact of the photography. A photo of it parked clearly shows that that is just a shroud around the cylinders of the radial engine https://en.wikipedia.org/wiki/Abrams...140188595).jpg

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    Supporting Member Toolmaker51's Avatar
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    Quote Originally Posted by bruce.desertrat View Post
    This is just an artifact of the photography. A photo of it parked clearly shows that that is just a shroud around the cylinders of the radial engine https://en.wikipedia.org/wiki/Abrams...140188595).jpg
    Terrific article, Bruce, amplifies this post. Shrouded the cylinders probably aided cooling, many (most) have airfoil cross sections, IIRC early biplanes so-equipped.
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    Toolmaker51
    ...we'll learn more by wandering than searching...

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