Full Scale Tests on a Thin Metal Propeller at Various Tip Speeds (1929)
NASA Technical Reports Server (NTRS) · leaf 6
r a thrust or a drag, was measured on the regular thrust balance (also described in reference 6). This resultant horizontal force R may be thought of as composed of three horizontal components, such that R=T--D-^D, where 2'= the thrust of the propeller while operating in front of the body (the… … Fig. 2.—VE-7 airplane mounted in propeller research tunnel In order to obtain the propulsive efficiency, which includes the propeller-body interference, an effective thrust is used which is defined as Effective thrust =T-AD = R + D. RESULTS The results of the tests are given in Figures 3 to 7,…
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