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Variable-Tilt Helicopter Rotor MastVariable-tilt helicopter rotor mast proposed to improve helicopter performance and reduce vibration, especially at upper end of forward-speed range of helicopters. Achieved by use of universal coupling in main rotor mast or by tilting entire engine-and-transmission platform. Performance, energy efficiency, and safety enhanced.
Document ID
19950070424
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Kelley, Henry L. (U.S. Army Aeroflight Dynamics Directorate)
Date Acquired
August 16, 2013
Publication Date
November 1, 1995
Publication Information
Publication: NASA Tech Briefs
Volume: 19
Issue: 11
ISSN: 0145-319X
Subject Category
Machinery
Report/Patent Number
LAR-13779
Accession Number
95B10603
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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