This has been a good thread.
Here is what I need to do: at our slope site we have to launch 14-26 ounce foamies
(many times Zagi wings) off the slope into 10-25 mph winds. Trees down below generate
turbulence to 8-10' above the launch zone, so what we need is an upstart/bungee system
to pop
Dave,
You said:
>Using a 50 ft piece of rubber and some nylon line (50 ft ?) to create an
>upstart (or mini-hi-start), what is the normal max stretch allowed. I heard
>3 to 1. Is that 100 ft of stretch making the final length of the rubber
>150 ft or is the stretch itself 3 to 1 making the st
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