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Generic icing effects on forward flight performance of a model helicopter rotorAn experimental program using a commercially available model helicopter has been conducted in the TAMU 7 ft x 10 ft Subsonic Wind Tunnel to investigate main rotor performance degradation due to generic ice adhesion. Base and iced performance data were gathered as functions of fuselage incidence, blade collective pitch, main rotor rotational velocity, and freestream velocity. The experimental values have shown that, in general, the presence of generic ice introduces decrements in performance caused by leading edge separation regions and increased surface roughness. In addition to the expected changes in aerodynamic forces caused by variations in test Reynolds number, forward flight data seemed to be influenced by changes in freestream and rotational velocity. The dependence of the data upon such velocity variations was apparently enhanced by increases in blade chord.
Document ID
19890053722
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Tinetti, Ana F.
(Texas A&M Univ. College Station, TX, United States)
Korkan, Kenneth D.
(Texas A & M University College Station, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1989
Publication Information
Publication: Vertica
Volume: 13
Issue: 1 19
ISSN: 0360-5450
Subject Category
Aircraft Design, Testing And Performance
Accession Number
89A41093
Funding Number(s)
CONTRACT_GRANT: NAG3-626
Distribution Limits
Public
Copyright
Other

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