Glidapult (oz13935)

 

Glidapult (oz13935) by John Stockwell 1943 - plan thumbnail

About this Plan

Glidapult. Glider launch catapult, crossbow-style.

Quote: "Give it the Gun With Gidapult. By John Stockwell.

The scarcity of balsa, rubber and other materials essential to model building due to the war-needs of our government, has reduced the field of flying model planes to somewhat narrow proportions. Clearly, gliders are the one type of plane left which will give all the necessary pleasure in construction and at the same time provide the builder with flying thrills when the craft is tried out.

Still, even launching the average small-sized glider is a wearing sport. After a half-hour or so, when the flush of enthusiasm has not yet reached its zenith, the builders's arm becomes tired and rapidly wears out its usefulness for the day.

The idea which immediately occurs to him to substitute a glider launching rack for his good right arm is nothing new. Glider launches have been made for years, chiefly in the modified form of a bean-shooter. The rubber-shortage has made this type obsolete. Again, the rubber-powered launch places a good deal of stress on the fuselage of the glider and often tears it to shreds.

The glider launching gun on this page does away with most of the drawbacks connected with rubber-powered launches; moreover it is constructed chiefly of non-essential materials. Whatever metal parts are called for are easily obtainable in any hardware store, or better, still, any scrap heap.

The stock of the launch is entirely white pine, sawed to shape from a single piece. The dimensions as specified in the plan were found to be entirely satisfactory, but a little give in either direction is allowable. This also goes for the bow. The business-end of the barrel is lined on the outside with metal stripping for reinforcement and to prevent the top-piece from breaking off due to impact or the bottom-piece breaking off due to strain from the bow.

The slide groove, sawed lengthwise along the barrel as indicated, can be made by boring two holes with a half-inch augur at each end of the projected groove and sawing barrel-length-wise with the blade of a scroll-saw which can be detached and placed through one of the holes. Approximately halfway down the barrel, according to the length of one's arms, a 1/2 in hole is bored and a dowel rod of corresponding thickness and a length adjusted to the builder's hand, inserted and secured..."

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Glidapult (oz13935) by John Stockwell 1943 - model pic

Datafile:
  • (oz13935)
    Glidapult
    by John Stockwell
    from Flying Aces
    October 1943 
    Extra
    clean :)
    all formers complete :)
    got article :)
  • Submitted: 02/07/2022
    Filesize: 1252KB
    Format: • PDFbitmap
    Credit*: theshadow

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User comments

Modellers are required to refrain from employing this to shoot the Albatross*.
* as in oz4532, oz5033, oz2025, and so forth.
Miguel - 09/07/2022
I kind of like the design concept. But I think if I built one of these and tried using it in my local park, I would be wrestled to the ground by concerned citizens within 5 minutes.
SteveWMD - 09/07/2022
Steve - I was thinking the same thing!
Brooke Linford - 11/07/2022
Even riskier over here in Belfast - you're liable to find yourself looking down the wrong and of a bang stick
Daithi - 12/07/2022
Y'all live in the wrong places! Over here crossbows are primary school stuff, at 12 they should be able to handle halberd fencing or blow guns if preferred, but curare is only authorized at 16!
:))
Miguel - 12/07/2022
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Scaling

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