37 NOMENCLATURE FOR AERONAUTICS F \\ y C, lateral axis A, angle of roll A, angle of attack F, drag axis D, positive direction of roll B, e.g. and longitudinal axis G, flight path B, center of gravity C, center of pressure H, lift, dynamic Figure 10.—Rolling. D, direction of relative wind I,… … U.S. GOVERNMENT PRINTING OFFICE: 1934
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