Wing-nacelle interference investigation conducted in variable-density wind tunnel to determine why N.A.C.A. cowling did not yield expected increase in speed when adapted to outboard nacelles of trimotored airplanes; drag and interference of Wright Whirlwind engine nacelle with N.A.C.A. cowling, when combined with thick wing, can be reduced from 152 lb. to 25 lb. at 100 m.p.h., by changing its position and fairing it into wing.
The drag and interference of a nacelle in the presence of a wing
Nat. Advisory Committee Aeronautics -- Tech. Note
1929
12 pages
12 Figs. on supp. plates, Bibliography
Report
English
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