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#meteorology.
Posts on the Alpisto engineering blog filed under#meteorology.
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- 01#flybeeper#fanet-vario#fanet
The lift does not fade: where 11,046 competition thermals end and how to see it coming
In 11,046 competition thermals the lift hardly fades: pilots climb at full rate almost to the top, so your own vario cannot warn you. The pilots who left before you and the day's earlier tops can, about a minute ahead.
11 min read - 02#flybeeper#fanet-vario#fanet
The thermal leans, then it drifts: 8,409 thermals rebuilt from competition tracks
From the tracks of 28 competitions I rebuilt 8,409 thermals. Near mountain terrain the column stays put and leans at 45°; higher up and over flat land it stands nearly straight and drifts at two thirds to three quarters of the wind.
22 min read