a question about big flaps or Fowlers on a biplane

Discussion in 'Aircraft Design / Aerodynamics / New Technology' started by Battler Britton, Nov 10, 2019 at 5:25 PM.

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  1. Nov 10, 2019 at 5:25 PM #1

    Battler Britton

    Battler Britton

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    Is there anybody , here , who could help me about this?

    We all see low wing, high wing...midle wing with flaps but, I never saw any multi plan with flaps

    Is there possibly trouble, maybe like wing interference, or something with pitching moment..?

    Do you know an example of a flaped ..or better, a slot flaped biplane

    Thank you, aerodynamics fan!
     
  2. Nov 10, 2019 at 5:29 PM #2

    TFF

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    AN2.

    Home built A couple have added flaps to Pitts and Smith Mini.
     
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  3. Nov 10, 2019 at 5:57 PM #3

    Battler Britton

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    oh...! for sure...AN 2!
    and I flew one ..but so many time ago!
    thank you very much!
     
  4. Nov 10, 2019 at 6:13 PM #4

    Battler Britton

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    so, thank you again, now I found some very good picture of almost one very big flaps on a bipe!

     
  5. Nov 10, 2019 at 6:54 PM #5

    lakeracer69

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    Most biplanes have so much drag you don't need flaps for landing.
     
  6. Nov 10, 2019 at 7:04 PM #6

    Aesquire

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    Several biplane have had flaps, usually just on the bottom wing. But some had flaps on both.
    https://www.griffonaerospace.com/systems/lionheart/

    And... Some biplanes only had ailerons on one wing. Others, both. It depends on the designer 's priorities. Simplicity or roll rate?
     
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  7. Nov 10, 2019 at 7:20 PM #7

    Battler Britton

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    In fact....why not? with 2 flaped cantilever,small chord, high A/R wing ,but still short span compare to a mono plan.
    You can imagine a very small air plane , with very small wings, easy to remove (like Colomban Cricri). So easyer to keep at home..
     
  8. Nov 10, 2019 at 11:11 PM #8

    Toobuilder

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    The Hiperbipe has full span flaperons on both upper and lower surfaces.

    It occurs to me just now that in all the years I had my Hiperbipe I never once tried to deploy the flaps while inverted...
     
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  9. Nov 11, 2019 at 12:07 AM #9

    Mcmark

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    Staggering Beech has ailerons top wing and flaps on the lower.
     
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