B-17 oil coolers air intakes

Discussion in 'Engines' started by Maxrobot1, Mar 29, 2010.

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  1. Maxrobot1

    Maxrobot1 Member

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    B-17 wing leading edges have six ports or intakes on each wing. I would guess that three are for each engine. What are the functions of each?
    Where do they vent? With those big scoops the air has to exit somewheres. I recall that the four slot-like vents on the upper surface of the wings behind each engine was something about venting fuel tanks.
    I saw in a training film that the engines air intakes were inside the wing and not a ram-air intake.
    Is one intake for the supercharger intercooler?
    Model kits just leave open holes into the wing with no details. None of the aviation books I have show that kind of detail.
     
  2. FLYBOYJ

    FLYBOYJ "THE GREAT GAZOO"
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  3. Maxrobot1

    Maxrobot1 Member

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    Thanks! I did find in the appendix of Ed Jablonski's B-17 book a reprint of a pilots handbook which shows that one intake was for the intercooler and one for the supercharger air but I think that there was a switch the pilot could use which would take air from the airfilter deep inside the wing rather than the ram air inlet. I guess this would be used at lower altitudes.
    Was the turbo-supercharger on all the time or was it only used above a certain altitude?
     
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    beaupower32 Well-Known Member

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