US: 2-engine Davis Wing Bomber

Discussion in 'Aviation' started by gjs238, Sep 17, 2012.

  1. gjs238

    gjs238 Well-Known Member

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    Was the Davis Wing ever used or considered for a 2-engined bomber?
    How about a medium bomber?
    How would a "Mini-24" have compared to the B-25, B-26 and others?
     
  2. tyrodtom

    tyrodtom Well-Known Member

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    The Davis wing was used on th Consolidated XP4Y, a 2 engined flying boat, that could carry a prertty good bomb load also, but only 1 was built.
    It used the same engine as the B-29, not enough to spare for the P4Y, so it was cancelled.
     
  3. Shortround6

    Shortround6 Well-Known Member

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    Last sentence from A wiki entry on the Davis wing.

    "As speeds of aircraft of all sorts increased, the Davis wing's low low-speed drag could not make up for its higher high-speed drag, and use effectively ended."

    Drag is not simple and what works well at low speed may not work at high speed ( Hawker Hurricane and Typhoon?)

    where the crossover point for the Davis wing is I don't know. Davis wings are also pretty high aspect ratio. some good comes from this and somethings not so good.
     
  4. drgondog

    drgondog Well-Known Member

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    SR - you are right about that (I.E Clark Y on B-17 would not be useful on P-51. Having said that compressibility drag starts at about .3 (extremely negligible) and increases till .5 where it has a couple % increase to .6-.68 where there are smal localized drag divergence initiations (P-38 comes to mind). I don't feel that 'drag' would have been an issue with Davis airfoils for WWII 1943-145 model medium bombers.

    Short answer - I don't know.
     
  5. wuzak

    wuzak Well-Known Member

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    Didn't the B-29 have a Davis wing?
     
  6. krieghund

    krieghund Member

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    The B-29 used Boeing's Model 117 laminar airfoil, the wing featured the unusually high aspect ratio (wing span divided by mean chord) of 11, a detail that contributed greatly to reducing drag and increasing range.
     
  7. wuzak

    wuzak Well-Known Member

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    OK, thanks.
     
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