30 



EXPERIMENTS IN AERODYNAMICS. 

 Fig. 3. 



Velocities of soaring of iru-li iii-' 1 planes on the Plane-Dropper. 

 Average weight of plane = 465 grammes. 



Abscissae: = Angles of inclination (a) of pi to horizon. 



( (rdinates : = Velocities in meters per second. 



