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HELICOPTERS
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An experimental and theoretical study of helicopter rotor noise.
Maintenance cost studies of rotary wing commercial transport aircraft
The cost of noise reduction in commercial tilt rotor aircraft
The cost of noise reduction for departure and arrival operations of commercial tilt rotor aircraft
Computation of helicopter rotor wake geometry and its influence on rotor harmonic airloads
Gust response and its alleviation for a hingeless helicopter rotor in cruising flight.
Higher harmonic blade pitch control : a system for helicopter vibration reduction