Lashup Radar Network

The Lashup Radar Network was a United States Cold War radar netting system for air defense surveillance which followed the post-World War II "five-station radar net" and preceded the "high Priority Permanent System".ROTOR was a similar expedient system in the United Kingdom.

United States electronic attack warning began with the 1929 Air Corps "experimenting with a rudimentary early-warning network at Aberdeen Proving Ground" MD, a 1939 networking demonstration at Twin Lights station NJ, and 2 SCR-270 radar stations during the August 1940 "Watertown maneuvers" (NY). When "Pearl Harbor was attacked, [there were 8 CONUS] early-warning stations" (ME, NJ, & 6 in CA), and Oahu's Opana Mobile Radar Station had 1 of 6 SCR-270s. CONUS "Army Radar Station" deployments for World War II were primarily for coastal anti-aircraft defense, e.g., L-1 at Oceanside CA, J-23 at Seaside OR (Tillamook Head), and B-30 at Lompoc CA; and "the AAF...inactivated the aircraft warning network in April 1944." In 1946 "Development of Radar Equipment for Detecting and Countering Missiles of the German A-4 type" was planned, and the Distant Early Warning Line was "first conceived—and rejected—in 1946". By 1948 there were only 5 AC&W stations, e.g., Twin Lights in June and Montauk's "Air Warning Station #3 on July 5 (cf. SAC radar stations, e.g., at Dallas & Denver Bomb Plots).

The Radar Fence was a planned U.S. Cold War air defense "warning and control system" for $600 million (including $388 million for radars and other equipment) proposed in a report by Maj. Gen. Francis L. "Ankenbrandt and his communications officers" and which was approved by the USAF Chief of Staff on November 21, 1947. The "Radar Fence Plan (code named Project SUPREMACY)" was to be complete by 1953 with 411 radar stations and 18 control centers in the continental United States. Air Defense Command (ADC) rejected Supremacy since "no provision was made in it for the Alaska to Greenland net with flanks guarded by aircraft and picket ships [required] for 3 to 6 hours of warning time", and "Congress failed to act on legislation required to support the proposed system." In the spring and summer of 1947, 3 ADC Aircraft Control and Warning (AC&W) plans had gone unfunded.

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