The Torsional and Bending Deflection of Full-Scale Aluminum-Alloy Propeller Blades Under Normal Operating Conditions (1938)
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f light was directed onto the mirror, which reflected it to a focus TEST EQUIPMENT AND PROPELLERS on a vertical screen behind the propeller. As the pro- The deflection measurements were made in the N. A. peller rotated, the narrow pencil of lighl impinged on C. A. 20-foot tunnel described in… … Figure 3.—Blade-form curves for propellers 4877, 5868-1). and 6101. Blade allele, 15° at 0.75/?. D, diameter; R, radius to the tip; r, slnlhm radius; k, section thick uess; b, section chord; p, geometric pitch. The propellers were turned by a GOO-horsepower ( urtiss Conqueror engine enclosed in a…
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