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VARIABLE GEOMETRY SHROUDED PROPELLER TEST PROGRAM. VOLUME 2. TEST DATA
Final rept. Dec 1966-May 1968
UNITED TECHNOLOGIES CORP WINDSOR LOCKS CT HAMILTON STANDARD DIV
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Wind tunnel tests of variable geometry shrouded propeller models were conducted in the 18-ft and 8-ft test sections of the UARL Large Subsonic Wind Tunnel. The test model comprised a shroud propeller assembly which was attached to a propeller dynamometer through strain gage balances. The balances provided shroud chord force, propeller thrust and propeller torque data. Various pressure measurements were also obtained including shroud inlet pitot-static pressures, shroud exit total pressures, shroud surface pressure distributions, and velocity-angularity radial traverse probe data. These data were obtained for three shroud configurations and two sets of propellers. Shroud variables included lip contour, length and exit area propeller variables included blade planform and blade-shroud tip clearance. Test data for these model configurations were obtained through ranges of blade rotational speed at various blade pitch angles and at tunnel Mach numbers from 0.02 to 0.60.
APPROVED FOR PUBLIC RELEASE