Thread: When are thermals not circular and do thermal helpers assume thatthey are?
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Old August 11th 13, 05:29 AM posted to rec.aviation.soaring
jfitch
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Default When are thermals not circular and do thermal helpers assume thatthey are?
On Saturday, August 10, 2013 8:43:05 AM UTC-7, Dan Marotta wrote:
Your glider is drifting with the wind, too...




Unfortunately, the earth, and the GPS system that tracks with it, is not.....