Thread: How About Story Time
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Old May 1st 20, 07:52 PM posted to rec.aviation.soaring
Dave Nadler
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Default How About Story Time
On Friday, May 1, 2020 at 2:15:18 PM UTC-4, john firth wrote:
This is often called "thermal wave"...

https://www.ssa.org/Contests?show=blog&id=4169