Pomilio, Ottorino · New York, McGraw-Hill · leaf 368
d to the center of gravity of the element A Xdr, the air reaction dRt is not applied to the center of gravity,but falls at about 33 per cent, of the chord. However, fromknown principles of mechanics, this force can be replacedby an elementary force dRt applied to the center of gravity,and by an… … Fig. 220. that is, that the resultant of c?$ and dRt be tangent to theneutral curve of the propeller blade. Under these condi-tions, supposing that this be true for every elementA X dr of the propeller, all the various sections will bestressed only to tension.Since we may write d^ _ d^/drdRt ~…
Airplanes
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