Structural analysis and design of airplanes (1920)
United States. Army. Air Corps · [Washington] · leaf 147
traight strut with a diameter equal to the maximum diameter of thetapered one, and this resistance corrected by the ratio of the projectedareas. For a standard taper this ratio of areas is .871. It is impossibleto keep exactly similar sections in a tapered strut and as a result theair resistance of… … 98. Fineness Ratio—As the velocity increases the resistance is lessfor struts with higher ratios. The following fineness ratios are sug-gested for use on airplanes with various maximum speeds. Maximum Speed Over 175 M.P.H. ...Over 140 M.P.H. . ..Over 100 M.P.H. . . .Less than 100 M.P.H. Fineness…
Airplanes
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