Power plant including a secondary engine for compensating for losses of power from main engines in a rotary wing aircraft
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United States of America Patent
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Feb 13, 2018
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app pub date -
Dec 19, 2014
filing date -
Dec 20, 2013
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Abstract
A method of managing a power plant for a rotary wing aircraft, said power plant comprising two main engines, a secondary engine, and a main power transmission gearbox (MGB). Said main and secondary engines mechanically driving said MGB so as to rotate a main rotor of said aircraft. Said secondary engine delivers two distinct mechanical power levels so that said main and secondary engines together deliver sufficient mechanical power to enable said aircraft to fly, firstly a first secondary mechanical power MPS1 and secondly a second secondary mechanical power MPS2 suitable for compensating for a loss of main mechanical power from at least one main engine.
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