A prediction of helicopter rotor discrete frequency noise for three scale models using a new acoustics program
By: Kenneth S. Brentner.
Contributors: AIAA
Publisher: AIAA
Published: 1987
Place of publication: New York
Number of pages: 12
Subjects: Helicopters; Noise; Rotary wings
Notes: Bibliographical references: p.11-12.

Source: AIAA 25th Aerospace Sciences Meeting, January 12-15, 1987, Reno, Nevada