The velocity distribution caused by an airplane at the points of a vertical plane containing the span (1925)
NASA Technical Reports Server (NTRS) · leaf 6
6 K.AcCA. Technical Ncte No. 21G Introducing now, polar coordinates R2, cos9 x2 + y2 R' the real part of (6) becomes, (according to Stolvre1 b formula) 1 + 0.5000 (|Y cos 29 + 0.3750 cos 49 + + C.3135 cos 69 + 0.3735 f §V cos 8cp + (7) Honce the downwash becomes [0.5000 f#* cos 29 + 0.3750 (f^* cos… … The figure shows the meaning of R and 9* R is the distance of the point from the middle of the span. cp is the angle between the radius R (connecting the middle of the span and the point with the span)?
NASA Technical Reports Server (NTRS)
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