United States. Army. Signal Corps · Washington · leaf 171
P. causes the airplane to nose down and assists the pilot in making a reasonably small loop along the course C and in securing a quick recovery. If the engine is not throttled down then the airplane may be expected to follow the course D which results in a longer nose dive than in the case of the… … Fig. 81. air stresses upon the surfaces, in which case there is a possibility to collapse. If an upside-down flight is desired, the engine may or may not be throttled down at point A. If not throttled down, then the elevator must be operated to secure a course approximately in the direction B. If…
Aeronautics, Military
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
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