Navigation, guidance, and control for helicopter automatic landings
By: James R. Kelly and Frank R. Niessen.
Contributors: Niessen, Frank R.; United States. National Aeronautics and Space Administration. Scientific and Technical Information Office.; Langley Research Center.
Series: NASA technical paper -- 1649.
Publisher: National Aeronautics and Space Administration, Scientific and Technical Information Office
Published: 1980
Place of publication: Washington, D.C; [Springfield, Va. : For sale by the National Technical Information Service]
Language: eng
Number of pages: 55
Subjects: Helicopters -- Handling characteristics.; Automatic pilot (Helicopters) -- Testing.
Notes: "Langley Research Center."

"May 1980"--Cover.

Subject Category 08.

Includes bibliographical references.