About 10 years ago I made a proposal in RCSD about having classes based upon load dialed in by the CD rather than wingspan. It went no where because I did not proof test it and at the time had neither the time or equipment to make the hardware. I did a spec. on the system showing on-off time, ramp angles for the voltage or current and speed of the turnaround pulley. Once you have the equipment, the possibilities are almost endless.
Maybe time to look it up and see what I said.
Jack Iafret "Keeper of the Nostalgia Rules"
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There is a simple technique that I have heard has been tried with some success in the past. It involves mounting the winch on a spring loaded pivoting device that electrically limits the force on the line. A early.
This is 1920's technology, but effective. A more expensive technique using
strain gauges and electronic motor speed controls could be devised. 8^)
I am sure that with proper launch technique, towering launches can still be
achieved with such a system set at 80 pounds pull launching 4 pound models.
I suspect that experimentation will show that 20 to 30 pounds will be more
than adequate.
Tim
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