Aviation, theorico-pracitcal text-book for students (1919)
Carmina, Benjamin Morreale, 1871- [from old catalog] · New York, The Macmillan company · leaf 40
for both inherent directional and longitudinal stability. Longitudinal Dihedral Angle. — The longitudinal dihedral anjrle is the angle a (Fig. 13a) formed by the prolongation of the chord of a wing with that of the hori- zontal stabilizer of a machine, and it is made possible only by the de- calage… … the machine moving forward, the resistance of the air acts on the upper side of the horizontal stabilizer and sends the tail down, bringing the machine back to its normal posi- tion. If, instead, the tail drops (Fig. 13c), the case is re- versed; that is, the air strikes the under side of the hori-…
Aeronautics
Internet Archive · The Library of Congress · Public domain (published before 1931). Free to use for anything.
