Three methods of calculating range and endurance of airplanes (1927)
NASA Technical Reports Server (NTRS) · leaf 9
ual to the product of the maximiun speed by the endurance at maximum speed. An analysis of test data, both model and free flight, shows the cruising speed T ^ to bear a substantially constant relation to the stalling speed Fj with an average value of Fc= 1-40 T>. This means that regardless of the… … Speed range ratio, X^l^i curve gives directly the ratio of the thrust power at high speed to the Fio. 6.—Thrast horsepower composite curve thrust power at cruising speed. In order to convert the thrust power ratios to brake power ratios the propeller efficiency ratios must be deternained. This may…
NASA Technical Reports Server (NTRS)
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