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Invisible Trap Kills Glider Pilot – How To Avoid Microbursts

Chess In the Air

Moderate wind shear in some areas could make some thermals somewhat difficult to work but that, too, is typical. At the high density altitude at Rifle a ground speed of 92 kt would have been equivalent to an indicated airspeed of less than 80 kt. Some passing high clouds were unlikely to be a factor. km (about 200 ft).

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