|Prior to the development of radar, naval ships could track other ships or aircraft only by using optical techniques, sound ranging, or primitive radio direction finding.
In the autumn of 1922, scientists and engineers at the U.S. Naval Research Laboratory (NRL) made an important discovery. They were able to detect a moving ship
by using radio waves which led to the development of the radar principle. In 1930, NRL scientists observed that the reflections of radio waves from an airplane could
also be detected. During the 1930s, NRL worked on using radio waves for detection and ranging and in 1935 they received funding from Congress to develop the
first U.S. radar, the XAF. This unit was fitted on USS New York in 1939 for testing. The success of this test led to the first commercially produced radar, the
CXAM. Advancements in radar technology led to the development of many other types of units that were installed of U.S. Navy ships of all sizes and contributed to
the victories of the U.S. Navy in war against Japan.
Infini Models has produced a 1:350 scale US Naval radar set comprised of photo-etch and turned brass components covering several types used on ships ranging
from destroyers to battleships and carriers. With this set you can make the following radars: