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Measurement of the Differential and Total Thrust and Torque of Six Full-Scale Adjustable-Pitch PropellersForce measurements giving total thrust and torque, and propeller slip stream surveys giving differential thrust and torque were simultaneously made on each of six full-scale propellers in the 20-foot propeller-research tunnel of the National Advisory Committee for Aeronautics. They were adjustable-pitch metal propellers 9.5 feet in diameter; three had modified Clark Y blade sections and three had modified RAF-6 blade sections. This report gives the differential thrust and torque and the variation caused by changing the propeller tip speed and the pitch setting. The total thrust and torque obtained from integration of the thrust and torque distribution curves are compared with those obtained by direct force measurements.
Document ID
19930091495
Acquisition Source
Legacy CDMS
Document Type
Other
Authors
Stickle, George W
Date Acquired
September 6, 2013
Publication Date
January 1, 1933
Report/Patent Number
NACA-TR-421
Report Number: NACA-TR-421
Accession Number
93R20785
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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