The cost of noise reduction in helicopters
Author(s)Faulkner, Henry B.
Massachusetts Institute of Technology. Flight Transportation Laboratory
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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 selected to meet certain noise goals with minimum direct operating cast. this was repeated for several payloads and technology time frames. The effect of changes in the assumed mission profile was studied.
November 1971Includes bibliographical references (p. 52)
Cambridge, Mass. : Massachusetts Institute of Technology, Flight Transportation Laboratory, 
FTL report (Massachusetts Institute of Technology. Flight Transportation Laboratory) ; R71-5