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Often the glider would be towed up by another aircraft. This club uses a tractor's PTO to wind a cable attached to the front of the glider. It moves so quickly that it hauls the glider up several hundred feet into the air, where it hangs like a kite for several seconds before disconnecting from the cable. That's a rush. The glider runs maybe 100 yards along the ground before liftoff, then rises up to the release height-all this within a matter of seconds. Once it's at the peak of the cable's extension the pilot pushes a pedal that drops the cable. All this takes maybe 7 seconds. Then you start to nose dive a bit until he picks up enough speed to steer. At that point he needs to find a thermal as soon as possible or gravity wins. It's actually pretty safe. You'll remember the pilot who landed the plane in the Hudson River. He was a glider pilot first, which is probably what saved the flight as he knew how to land without alternate power.
So even if the pilot can't find a thermal he knows how to guide the craft downward without free fall. The problem with the altitude change, whether up or down, is that it needs to be in a circular motion. And that's when my lunch decided to pay me a little visit.
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All in all, a fun afternoon, although it really did take me about 2 days to fully recover from the motion sickness. Ick.
Excellent write up Louis! :)
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