FIRE-CONTROL RADARS FOR NAVAL VESSELS 7 



convenient to operate and to provide a range accuracy that would be useful 

 in fire control. Since this early radar is of cosideraljle historiial im- 

 ])ortancc it will be described in some detail. 









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Fig. 3— C.VA.-5— Aiucnnii 



The CXAS Radar 

 This equipment was divided into three major assemblies and the circuits 

 were arranged so the three could be installed at some distance from each 

 other. The antenna (see Fig. 3) consisted of a cylindrical parabolic re- 

 flector about 6 ft. square with an array of eight half-wavelength dipoles 

 along the focal line. With shipboard use in mind the reflector was per- 

 forated to minimize wind resistance and the dipole and coaxial line feed 



