Pomilio, Ottorino · New York, McGraw-Hill · leaf 364
to an average value which willbe determined. We note that dR being inchned backward by about 4°with respect to the normal to the blade cord, changesdirection from section to section; it will consequently beconvenient to consider the two components of dR, com-ponent dRt perpendicular to the plane of… … 350 AIRPLANE DESIGN AND CONSTRUCTION In our case to = 188 and V = 156 m.p.h. = 2800 in.per sec. (see page 374 for \alue of V). On an axis ^A^ lay off the various radii (Fig. 217), make AB ^ - = loo = 14.9 perpendicular to AX, and from B draw segment BC. We shall evidently have BC = AB + ACthat is,…
Airplanes
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