§ 54
AERODYNAMICS.
as is due to viscosity will then vary as the velocity, the net resistance curve being thus the sum of the ordinates of a parabola
Fig. 32.
and an inclined straight line. It can be shown geometrically that this results in the curve of resistance approximating to a parallel to the true parabola as shown in Fig. 32. In the second stage we have the experimental result of Mr. Allen as a guide. We know
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