Since opinions as to necessity of variable pitch propellers differ, writer attempts to clarify this question by calculating first of all tractive power of propeller necessary for horizontal flight of a given machine at various heights and to present it graphically, basing his calculations on Kann's theory of ascension.
Variable pitch propellers
Verstellbare Luftschrauben
1919
5 pages
4 Figs.
Article (Journal)
German
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