Variable speed gearbox with an independently variable speed tail rotor system for a rotary wing aircraft
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United States of America Patent
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Oct 14, 2008
Grant Date -
Jun 7, 2007
app pub date -
Dec 2, 2005
filing date -
Dec 2, 2005
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Abstract
A gearbox of a rotary-wing aircraft includes at least one variable speed system which optimizes the main rotor speed for different flight regimes such as a hover flight profile and a high speed cruise flight profile for any rotary wing aircraft while maintaining an independently variable tail rotor speed.
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