The cost of noise reduction for departure and arrival operations of commercial tilt rotor aircraft
Name
FTL_R_1976_04.pdf
Size
7 MB
Format
Adobe PDF
Checksum (MD5)
95bf9787b56d14ee6b9e99f49288616c
Author(s)
Faulkner, Henry B.
Swan, William M.
Date Issued
1976
Publisher
Cambridge, Mass. : Flight Transportation Laboratory, Massachusetts Institute of Technology, [1976]
Series/Report no.
NASA contractor report ; NASA CR-137803
FTL report (Massachusetts Institute of Technology. Flight Transportation Laboratory) ; R76-4
Abstract
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 rotor aircraft designs to meet various noise goals at minimum DOC. These vehicles ranged across the spectrum of possible noise levels from completely unconstrained to the quietest vehicles that could be designed within the study ground rules. Optimization parameters were varied to find the minimum DOC. This basic variation was then extended to different aircraft sizes and technology time frames. It was concluded that reducing noise annoyance by designing for lower rotor tip speeds is a very promising avenue for future research and development. It appears that the cost of halving the annoyance compared to an unconstrained design is insignificant and the cost of halving the annoyance again is small.
Description
February 1976
Includes bibliographical references (p. 50-51)
Subjects
Helicopters
Vertically rising aircraft
Noise
Persistent DSpace Link
