Propeller Static Performance Tests for V/STOL Aircraft. Part Ii. Test Data (Appendix III)

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Propeller Static Performance Tests for V/STOL Aircraft. Part Ii. Test Data (Appendix III)

M. H. Chopin

The report presents the reduced data obtained during an extensive series of propeller static performance tests which were run because of a static performance thrust deficiency encountered during flight tests of the XC-142A V/STOL Cargo Aircraft. Thirteen different propellers were used; 28 different configurations were obtained by changing parameters of some of the 13 blades. The reduced data for the 28 versions of propellers tested are presented. Parameters studied during the tests included blade cuff (on or off), tip shape, twist, activity factor, camber, and airfoil section. Data on several other static thrust propellers tested on Rigs Nos. 1 and 4, which were not a part of this test series, are also presented for additional information. The information obtained from the tests, in effect, represents a state-of-the-art study for improving propeller static performance for V/STOL aircraft applications. The information obtained during these tests can be used to more accurately predict static thrust for future propeller driven V/STOL aircraft. (Author)