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The rotor systems research aircraft - A flying wind tunnelThe Sikorsky Aircraft division of United Aircraft Corporation is constructing two uniquely designed Rotor Systems Research Aircraft (RSRA). These aircraft will be used through the 1980's to comparatively test many different types of rotors - articulated, hingeless, teetering, and gimballed, as well as advanced rotor concepts, such as reverse velocity and variable diameter rotors. The RSRA combines a new airframe with existing Sikorsky H-3 (S-61) dynamic components. A force measurement system is incorporated to permit accurate evaluation of significant rotor characteristics. Both rotor and fixed-wing control systems are provided, appropriately integrated for operation in the pure helicopter mode, compound helicopter mode, and fixed-wing mode. The RSRA is the first rotary wing aircraft designed with a crew escape system, including a pyrotechnic system to sever the main rotor blades.
Document ID
19750027042
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Linden, A. W.
Hellyar, M. W.
(United Aircraft Corp. Sikorsky Aircraft Div., Stratford, Conn., United States)
Date Acquired
August 8, 2013
Publication Date
October 1, 1974
Subject Category
Aircraft Design, Testing And Performance
Report/Patent Number
AIAA PAPER 74-1277
Meeting Information
Meeting: Canadian Aeronautics and Space Institute and American Institute of Aeronautics and Astronautics, Joint Meeting, Toronto
Location: Toronto
Country: Canada
Start Date: October 30, 1974
End Date: October 31, 1974
Accession Number
75A11114
Distribution Limits
Public
Copyright
Other

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