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Hang Glider History Timeline       EnterData  +
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Notes:  Link prefix with "g" is a generalized Google search.  Prefix with a "w" is a leading Wikipedia file on topic.

Books and Art

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  • (date?) VJ-11 Volmer Jensen full-control biplane hang glider.  (See 1970s for VJ-23 cantilevered monoplane)
 1940
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  1941

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  • Sept. 21, 1942, the founder of the Self-Soar Association and  United States Hang Glider Association was born.
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 1942

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  1943

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  1944

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  • Francis M. Rogallo itching to see the essence of wing.
 1945

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  • undefinedAIRPLANE WITH PIVOTALLY MOUNTED SUSTAINING WING 
    G. G. SPRATT    

    Trim your hang glider. Let go of the airframe. Let the hang glider fly itself. At that moment you may  know that you may well be flying a control-wing hang glider.

    Touch the control frame downtubes or basebar to move the winged airframe and cause the glider's wing to be altered in its attitudes.

    Patent number    : 2623712
    Filing date: Sep 21, 1946
    Issue date: Dec 1952
    Inventor: G. G. SPRATT



     
  • George Spratt   gGES1  gGES2cw

     
 1946

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Dr. George A. Spratt towed his single hang point glider on floats using a motorboat. 1929. [98][99] Such control bar was going to be fit on many members of the class of STANDARD ROGALLOS, essentially begun by Barry Palmer in 1960-61. Wind-tunnel tests and models by NASA were occuring from 1958 onwards.2007 Wills Wing Falcon 3 with Spratt-like control bar BUT ADVANCED, click through

When we take our training flight and are told to just hang from our trim hang point and let go of a hold of the frame, then we can know our connection with George Spratt and his legacy for us.

Text not available

FLYING WING Robert F. Bach

Patent number: 2463135
Filing date: May 29, 1947
Issue date: Mar 1949
 

 1947

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1948
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     Often missed is "Dr." Rogallo's insistence that a fully flexible wing lived in reality below all stiffening manners,  and that the "Rogallo wing" was able to be known at a minimal interface with matter and energy; and then once it is discovered, that Rogallo wing could be used in every level of stiffening imaginable with confidence that a useful degree of stability and control would be at hand for humans for their products. Though "Rogallo-wing-using" items existed in inventions and objects before Francis Rogallo, the users had not identified the underlying "wing" as they used what Francis and Gertrude would prove existed and was able to be used from fully flexible format to even rock-solid formats.   

     With their finding and then leadership in NACA and NASA and over 24 related patents, they could be seen validly as founding modern flexible wing hang gliding.  The "delta" thing was before Rogallo, but the Rogallo wing was not realized before the Rogallos. The consultations and further research into hundreds of models and versions of Rogallo-wing using aircraft, kites, gliders, trikes, etc., posited Gertrude and Francis as the "parents of modern hang gliding" in most hang gliding communities found in the literature.

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 1949

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