Harper, Edgar Henry, Ferguson, Allan, b. 1880 · Cambridge : The University press · leaf 19
AERIAL LOCOMOTION [CH. the body move under these circumstances? The answer is given by a very simple construction, which the reader is asked to bear carefully in mind, as we shall continually make use of it. Suppose A to be the point in the body at which the two forces are applied, and let the… … Fig. 2. of one force be represented by the line AB, and of the other by the line AC. Draw the dotted line CD parallel to AB and BD parallel to AC, so that these two lines meet at D. Draw the straight line AD. Then the body will move in the direction AD, and its motion will be
Aeronautics
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