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Relation of Rib Spacing to Stress in Wing Planes
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40 miles acceleration aerodynamic aerofoil aileron Air speed airfoil airplane airship Airspeed angle of attack Angle of yaw axis balance beam body center of pressure Committee for Aeronautics components computed constant CONTROL SURFACES curve damping deflection diameter drag coefficient drag trussing elastic elevators ellipsoid elliptic cylinder equations example factors of safety feet fineness ratio fixed flight flow fluid formula friction front given gives graphs hence horizontal hull Long hull hull with control impact pressure inches inertia length manometer maximum measured miles an hour miles per hour motion National Advisory Committee Navy normal oscillation plotted pounds per square pressure drag quadrics reactions Report resistance resultant rotation rudders neutral running load shape coefficient shear Short hull Long shown in Figure spar spheroid stays stream stress strut Table tail plane tests tube uniform upstream values velocity vertical weight wind tunnel wing wires Zahm zero