Rebuild your swing-arm shut-off for encoded stop
First published: 12/9 2013 - Last update: 14/9 2013
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Shut-off with encoded stop function by Henning Forbech To prevent unwanted activating of the stop function during a combat match a swing-arm shut-off can be rebuild with lock that only allow the pilot to stop the engine. By encoding the stop sequence it is possible to block opponents from activating the stop function in a line tangle. Here is a description of a very simple way to rebuild a classic Rastenis swing-arm shut-off with a small lever. This video show the encoded stop on a flying model |
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 Rastenis Swing-arm shut-off rebuild with a small lever on the spring for the pilot activated stop Normal flight:  Normal position for starting the engine  Take-off. The encasing g-forces make the swing-arm start to swing to the full open position and the small lever is swinging out  Normal flight. The swing-arm is hanging on the build in end stop. The small lever is trapped in a vertical position and the stop spring can't be activated  Combat flight. If the line tension gets low in tight manoeuvres the swing-arm start to close. High g-forces might flip the small lever into a new position  When the line tension come back the swing-arm will go back to the full open position again. The small lever might be in a new position but the stop spring can still not be activated Pilot activated stop:  Normal flight. Shut-off is full open but the small lever is vertical. Stop function cannot be activated  A short slacking of the line tension in level flight. The swing-arm starts to close and let the small lever free to swing into a horizontal position  Line tension is back but now the small lever is fixed in the horizontal position  A hard pull on the lines will release the stop spring from the hook  The stop spring is free and forces the swing-arm to the closed position  The swing-arm is in the closed position and the engine stops |
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Permalink:
https://www.f2d.dk/stopatwill/codestop.htm
- Public domain -
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