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Accession Number:
AD0753397
Title:
An Investigation of Noise Generation on a Hovering Rotor, Part 2
Corporate Author:
BOEING VERTOL CO PHILADELPHIA PA
Report Date:
1972-11-01
Abstract:
The study is a natural extension of the program to investigate noise generation on a hovering rotor reported in an previous investigation. That program acquired data on a large 60 ft. diameter rotor operating on a whirl tower, and evaluated that data in the light of established analytical procedures. The work described in this report compares available data in order to investigate the effects of variations in rotor design. This data, which was available from other test programs included variations in number of blades of similar airfoil, airfoil, and platform. Also included is an evaluation of model testing by comparison of the results of the full size helicopter rotor with a one-eleventh scale model.
Descriptive Note:
Final rept. 1 Feb 1971-31 Jul 1972
Supplementary Note:
See also report dated Jan 1971, AD721312. DOI: 10.21236/AD0753397
Pages:
0108
Distribution Statement:
Approved for public release; distribution is unlimited.
Contract Number:
DAHC04-69-C-0087
File Size:
5.69MB
