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High speed wind tunnel tests of the PTA aircraftPropfans, advanced highly-loaded propellers, are proposed to power transport aircraft that cruise at high subsonic speeds, giving significant fuel savings over the equivalent turbofan-powered aircraft. NASA is currently sponsoring the Propfan Test Assessment Program (PTA) to provide basic data on the structural integrity and acoustic performance of the propfan. The program involves installation design, wind-tunnel tests, and flight tests of the Hamilton Standard SR-7 propfan in a wing-mount tractor installation on the Gulfstream II aircraft. This paper reports on the high-speed wind-tunnel tests and presents the computational aerodynamic methods that were employed in the analyses, design, and evaluation of the configuration. In spite of the complexity of the configuration, these methods provide aerodynamic predictions which are in excellent agreement with wind-tunnel data.
Document ID
19870045345
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Aljabri, A. S.
(Lockheed-Georgia Co. Marietta, GA, United States)
Little, B. H., Jr.
(Lockheed-Georgia Co. Marietta, United States)
Date Acquired
August 13, 2013
Publication Date
October 1, 1986
Subject Category
Aerodynamics
Report/Patent Number
SAE PAPER 861744
Accession Number
87A32619
Funding Number(s)
CONTRACT_GRANT: NAS3-24339
Distribution Limits
Public
Copyright
Other

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