Observations from varying the lift and drag inputs to a noise prediction method for supersonic helical tip speed propellers
By: James H. Dittmar
Contributors: United States. National Aeronautics and Space Administration
Series: NASA technical memorandum -- 83797
Publisher: NASA
Published: 1984
Place of publication: [Washington, D.C.?]
Language: eng
Format: Microform
Subjects: Propellers; Acoustical engineering; Supersonic planes -- Noise
Notes: Cover title

Distributed to depository libraries in microfiche

"September 1984."

STAR category 71

Bibliography: p. 8-9

Microfiche. [Washington, D.C.? : National Aeronautics and Space Administration], 1984. 1 microfiche ; 11 x 15 cm