AIRPLANE PERFORMANCES — HAMLIN AND SPENCELEY 457 



problems encountered on other types of airplanes. Target-seeking 

 interceptor missiles powered by rocket motors should be most effective. 



REFERENCES 



1. Von KlBMlN, Th. 



1944. Comparative study of jet propulsion systems as applied to missiles and 



transonic aircraft. Jet Propulsion Laboratory Memorandum JPL-2, 

 California Institute of Technology, Mar. 28. 



2. Gdlbuth, II. R., and Wktmork, J. W. 



1945. Preliminary tests of several airfoil models in the transonic speed 



range. N. A. C. A. A. C. R., May. 



