1/144 Scale WW2 USD FD Radar for Mk 37 Director

The U.S. FD fire control radar was known in British service as the Type 285. It was similar to FC but had a larger antenna and gave altitude information. The antenna was a stabilized 6' by 6' (1.8m by 1.8m) double reflector with 2x4 dipoles and the display was an "A" scope with a 100,000 yard (91,000 m) range scale.

http://pwencycl.kgbudge.com/F/d/FD_fire_control_radar.htm