62 



EXPERIMENTS IN AERODYNAMICS. 

 Fig. 10. 



Ratio of the resultant normal pressure (P„) on an inclined rectangle to the i:)ressure (P^) on 



a normal rectangle, comi:>uted from experiments with the Component Pressure Recorder. 



Abscissas: = Angles of inclination («) of plane to horizon. 



IF P 



Ordinates : = F{a) = ,^ — -— = -^ (expressed as a percentage). 



A^ ./l \ Cos *^' J on 



