United States. Army. Signal Corps · Washington · leaf 158
d be necessary in order to absorb the power of the engine, to revolve the comparatively small surface propeller at an immensely greater velocity than that of the airplane surface. As already explained, the lift-drift ratio falls with velocity on account of the increase in passive drift. This… … Essentials for maximum velocity. — The following are the essentials for an airplane of maximum velocity for its power, and possessing merely enough lift to get off the ground, but no margin of lift: 1. Comparatively high velocity. 2. A comparatively small surface because, being of greater velocity…
Aeronautics, Military
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
