MW9 Flying Plank is doing just that..

Discussion in 'Aircraft Design / Aerodynamics / New Technology' started by cheapracer, Nov 28, 2019.

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  1. Nov 28, 2019 #1

    cheapracer

    cheapracer

    cheapracer

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  2. Nov 28, 2019 #2

    cluttonfred

    cluttonfred

    cluttonfred

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    Very cool, both the new flying wing and the little history of his designs. Note the universal joint from a car on the all-moving tail of the MW4.
     
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  3. Nov 28, 2019 #3

    FritzW

    FritzW

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    Where are you seeing a universal joint?

    EDIT: Disreguard, I was looking in the video. Found it in the PDF.
     
  4. Nov 28, 2019 #4

    cluttonfred

    cluttonfred

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    Yup, that's it. The one and only MW4 used an all-flying, all-moving cruciform tail à la Santos-Dumont Demoiselle mounted on a universal joint from a car axle. As I remember Mike explaining it, the universal joint solution worked just fine (and has continued to do so for decades as I believe the MW4 is still airworthy) but the PFA (now LAA) engineering folks were bothered by it so it went with conventional rudder and stabilator for the "production" plans-built MW5. Note in the detail photo below how the rudder is cut away near the boom to allow the whole assembly to tilt for pitch, the stabilator is cut away the same way for rudder movement. Really cool!

    mw4.jpg mw4 (detail).jpg
     
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  5. Nov 28, 2019 #5

    TFF

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    Mark Stull’s round tail used the same idea. Don’t remember the exact hardware.
     
  6. Nov 29, 2019 #6

    erkki67

    erkki67

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    I like the nose of the RC airplane and less of the real one.

    I'd like to see bigger wheels on it, and the fuselage of Fritz!
     

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