I have also done a variation of this that the model sits on for hand launch.
For either version the fixture slips into a hole in a "sub-stooge" that is clamped to a support (bench, sawhorse, tailgate, etc.).
g3882.png
g3864.png
For a model that winds from the front, turn the fixture around so that the fuselage can sit on the sub stooge. You wind it on the stooge,and lift the fixture off while holding the model.
g4894.png
To launch, simply pull the fixture down and launch the model.
https://www.youtube.com/watch?v=P5kIOW5ReTYHoward
(kittyfritters)
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