Sunday, August 22, 2010

About big ears of parachute.

Big ears induces descent rates 2m/sec. By pulling on the outer A lines the wing tips of the glider can be folded in. This method drastically deteriorates the glide with only a small decrease in forward speed. The effectiveness of this technique can be increased b using the speed system at the same time. To reflate on a low performance glider is simply necessary to release the lines. On higher performance gliders may be necessary to help the re inflation with brief, deep pumps of the brakes whilst big ears in use the loading on the remaining flying surface of the glider is increased and it is more stable and less prone to collapse. However there is an increased risk of stalling because pulling the ears increases the angle of attack and reduces the speed of the wing so while ears and speed bar is a good combination ears and brake is not, it is best not to use the brakes when the ears are in.

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