The Effect of Solidity on Propeller Normal Force National Aeronautics and Space Administration Langley Research Center

Format:

Conference/Event

Author/Creator:

Dunham, Dana Morris, author.

Conference Name:

Aerospace Technology Conference & Exposition (1989-09-25 : Anaheim, California, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1989

Summary:

AbstractPropeller normal force is a major contributor to pitch and yaw stability on propeller driven aircraft. While it is well-known that propeller normal force is a function of the number of blades, there are no published data for the high numbers of blades that are used in the new designs such as the GE UDF and Pratt-Whitney-Allison 578-DX.This paper presents the results of a test conducted in the NASA Langley 14- by 22-Foot Subsonic Tunnel using a sting-mounted counterrotation propeller and nacelle. The configurations tested were combinations of 0, 4, and 8 blades per hub. Tests were conducted for blade angle settings of 31.34°, 36.34°, and 41.34° over an angle-of-attack range from 10° to 90° and over a range of advance ratios from .8 to 1.4. The results show that propeller normal force varies with both solidity and angle of attack

Notes:

Vendor supplied data

Publisher Number:

892205

Access Restriction:

Restricted for use by site license