United States. National Advisory Committee for Aeronautics, United States. National Aeronautics and Space Administration · Washington : G.P.O. · leaf 96
0 30 /ZO 160 ZOO Z40 ZOO JZO ^ 360 400 440Air speed-A4i/es per hour. Fig. 15. It is to be noted that this ratio differs from the conventional efficiency factor used in wind-tunnel discussions (kinetic energy at throat over fan energy). It is treated in note II of thisreport, A value of 76 per cent… … HcCooK ricun High Si»ecD Wimx> TuNNeuViev^JHOWlNO lYNAMOMtTER, ToNNeU^/Sr>»r> llSTAvVtC. STRAlCMTE.N£lt. FIG. 12.
Aeronautics
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