Tests of Four Full-Scale Propellers to Determine the Effect of Trailing-Edge Extensions on Propeller Aerodynamic Characteristics
Abstract
Propellers with trailing-edge extensions were studied to determine aerodynamic characteristics. Trailing-edge extension increased power absorbed by propeller with little loss in efficiency. Power coefficient for maximum efficiency was greater for 20% camber type extension than for 20% straight type extension over range of advance ratio of 1.0 to 2.5 although camber type was less efficient. Efficiency was about the same for cruising and high-speed at a high power coefficient for propeller with extension.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1945
- Accession Number
- ADA800873
Entities
People
- Albert J. Evans
- Julian D. Maynard
Organizations
- Langley Research Center