Actions for Wingtip mounted, counter-rotating proprotor for tiltwing aircraft

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Wingtip mounted, counter-rotating proprotor for tiltwing aircraft

Author
Wechsler, James K.
Published
January 17, 1995.
Physical Description
1 electronic document
Additional Creators
Rutherford, John W.
Online Version

Availability

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Restrictions on Access
Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access
Summary
A tiltwing aircraft, capable of in-flight conversion between a hover and forward cruise mode, employs a counter-rotating proprotor arrangement which permits a significantly increased cruise efficiency without sacrificing either the size of the conversion envelope or the wing efficiency. A benefit in hover is also provided because of the lower effective disk loading for the counter-rotating proprotor, as opposed to a single rotation proprotor of the same diameter. At least one proprotor is provided on each wing section, preferably mounted on the wingtip, with each proprotor having two counter-rotating blade rows. Each blade row has a plurality of blades which are relatively stiff-in-plane and are mounted such that cyclic pitch adjustments may be made for hover control during flight.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 20080004794.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 17029067