PPRuNe Forums - View Single Post - G2 down in Switzerland - 15 June 2022
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Old 25th Jun 2022, 05:55
  #20 (permalink)  
Ascend Charlie
 
Join Date: Sep 2002
Location: Great South East, tired and retired
Posts: 4,373
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After all the LTE stories and wind azimut caveats I was very very cautious. Of course the smack at the fuselage when wind direction swung past 180° is impressive, but it was clearly hoverable in a controlled fashion.
Nick Lappos, long-time member of this forum and chief test pilot for Sikorsky (and later Bell) would have something like this to say:

When the US Army had bought a lot of early model B 206 / Kiowa, they had a lot of accidents where the pilot lost yaw control. Army asks Bell to investigate, and rather than admit that the tail rotor was too small to do the job, they came up with LTE.

Their spin merchants were VERY good at their job, even convincing FAA and a lot of others that LTE was real, and applied to every helicopter, and was the cause of the loss-of-yaw-control accidents. Pilot error for letting the wind get into the wrong quadrant, rather than an inadequate tail rotor. LTE appeared in every text book, pilots then said "It was LTE" for any and every case where the pilot didn't control the aircraft, or put it into a situation where the piddly tail rotor could not perform.

A bigger tail rotor subsequently appeared, but the LTE Urban Myth still persists. And mysteriously, it has never been proven to exist on any other helo type, especially NOT the Robinson line, because Frank was a tail rotor specialist and designed it correctly from the start.
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