8900.1 Editorial Updates - Federal Aviation Administration

Though the wind tee and tetrahedron may serve as landing direction or wind indicators, according to the FAA H 8083 25, Pilot’s Handbook of Aeronautical Knowledge, pages 12 8 and 12 9, the Aeronautical Information Manual (AIM) cautions against using the tetrahedron as a wind indicator (AIM page 4 3 4). ................
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