Pomilio, Ottorino · New York, McGraw-Hill · leaf 50
gs for changing the direction of their flight. To raise the force Z)„ with respect to the center of gravity,we may either install fins above the rolling axis, or, betterstill, give the wings an upward inclination from the center THE CONTROL SURFACES 35 to the tip of the wing, the so-called dihedral… … dence of the opposite wing, thereby developing a lateralcouple which is favorable to stability. The framework of the ailerons is usually of wood, steeltubing or pressed steel members. An outline of wood ailer-ons is given in Fig. 34. |3i
Airplanes
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