General Theory of the Steady Motion of an Airplane (1921)
NASA Technical Reports Server (NTRS) · leaf 41
MOTION OF' A33" AIBFLANE. 41 been already5explairied--4>ecaus€> for* invariable and the same altitude, charaeterized^by the value of the specific load, we read the same spaed on the same speed curve. But ail the other flying characteristics vary with the throttle, as can be seen directly from… … the Q/P curve is tangent in quadrant I to the Tcjkv curve (curve in dashes on fig. 19). At this throttle opening, the altitude considered is the ceiling. For any smaller throttle opening, the airplane will always be descending. ..• Let us now consider the engine power to be cut off, the airplane…
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