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Old 21st Jan 2012, 17:33
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SASless
 
Join Date: May 2002
Location: Downeast
Age: 75
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Is LTE caused by a mechanical defect?


No.

LTE is caused by an aerodynamic interaction between the main rotor and tail rotor. Some helicopter types (Jetranger) are more likely to encounter LTE due to the insufficient thrust produced by having a tail rotor which meets certification standards, but which is not always able to produce the thrust demanded by the pilot.

Quote taken from a UK Safety organization report on LTE.
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