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Thread: 1931 Lanier XL-4 Vacuplane - photos

  1. Apr 12, 2020, 10:51 PM #1
    Altair
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    1931 Lanier XL-4 Vacuplane - photos

    1931 Lanier XL-4 Vacuplane.










    Previously:

    Eshelman Flying Flounder - photo and video
    SNCASE SE. 100 fighter - photo
    He 111Z Zwilling - photos

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  2. The Following 3 Users Say Thank You to Altair For This Useful Post:

    baja (Apr 14, 2020), Duke_of_URL (Apr 13, 2020), Rangi (Apr 13, 2020)
  3. Apr 13, 2020, 09:14 PM #2
    Duke_of_URL
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    Now we know where the Harrier got its start.

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  4. Apr 13, 2020, 09:42 PM #3
    Frank S
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    And down the rabbit hole I went until I happened across this.
    http://eaach1.org/Design/Comm4v1_FullR4.pdf
    A long and very informative read
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  5. Apr 15, 2020, 11:12 AM #4
    mr herb
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    Any idea where all the air that was sucked through the slats exited? Where did the suction come from? The prop blades (assuming normal rotation) will pull the aircraft, and create positive pressure.

    It has some university logo on the side, so it would seem some intelligence was wasted (and also $$ )



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