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The cost of noise reduction in commercial tilt rotor aircraft
(Cambridge, Mass. : Flight Transportation Laboratory, Massachusetts Institute of Technology, [1974], 1974)
The relationship between direct operating cost and departure noise annoyance was developed for commercial tilt rotor aircraft. This was accomplished by generating a series of tilt rotor aircraft designs to meet various ...
The cost of noise reduction for departure and arrival operations of commercial tilt rotor aircraft
(Cambridge, Mass. : Flight Transportation Laboratory, Massachusetts Institute of Technology, [1976], 1976)
The relationship between direct operating cost (DOC) and noise annoyance due to a departure and an arrival operation was developed for commercial tilt rotor aircraft. This was accomplished by generating a series of tilt ...
The cost of noise reduction in helicopters
(Cambridge, Mass. : Massachusetts Institute of Technology, Flight Transportation Laboratory, [1971], 1971)
The relationship between noise reduction and direct operating cost was studied for transport helicopters. A large number of helicopter preliminary designs was generated with the help of a computer program. Vehicles were ...