A study of airplane ranges and useful loads (1920)
NASA Technical Reports Server (NTRS) · leaf 23
REPORT NO. 69. part m. EFFECT OF WIND ON RANGE CALCULATIONS. By J. G. Cofeik. September 1,1919. BEST FLIGHT SPEED. If there is a retarding or a helping wind it will be shown below that the conditions for maximum range must be changed. Tiie following is a proof of an important method for finding the… … Kg. 9. Let curve I be the required thrust-speed curve and II the required power-speed curve for the machine. Consider a machine of constant weight W which is flying with air speed V against a wind speed w. The ground speed is then V—w. ds In order to fly a ground distance ds it will take a time…
NASA Technical Reports Server (NTRS)
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