Helicopter main-rotor speed effects
Subtitle: a comparison of predicted ranges of detection from the aural detection program ICHIN and the electronic detection program ARCAS
By: Arnold W. Mueller and Charles D. Smith.
Contributors: Langley Research Center.
Series: NASA technical memorandum -- 104134
Publisher: National Aeronautics and Space Administration, Langley Research Center; For sale by the National Technical Information Service
Published: 1991
Place of publication: Hampton, Va; [Springfield, Va
Language: eng
Format: Microform
Subjects: Rotors (Helicopters) -- Noise.
Other titles: Helicopter main rotor speed effects
Notes: Distributed to depository libraries in microfiche.

Shipping list no.: 92-1088-M.

Microfiche. [Washington, D.C.? : National Aeronautics and Space Administration], 1992. 1 microfiche.