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The Allies were slow to allocate very long-ranged aircraft to maritime duties. They needed long-range maritime surveillance to hunt submarines just as the Luftwaffe needed it to hunt convoys. Stung by catastrophic losses, in April 1943 the United States finally allocated sufficient numbers of VLR (very long range) aircraft to suppress submarines.
As the Allies progressed upward in the Pacific, a need arose for a long-range warning set that could be quickly set up following an invasion. The RDL took this as a project in late 1942, and in few months six Long-Range Air Warning (LWAW) systems were available. These operated at 100 MHz (3 m) and, like the microwave sets, were mounted in trucks.
Lichtenstein SN2 - FuG 220: Low-mid VHF band frequency range, introduced in 1943 in response to Allied jamming, and used an eight-dipole Hirschgeweih (a stag's antlers) antenna array. Transmitter power of 2 kW on 3.3 meters. Range was increased to 6 km. Minimum range was 400 m, which was found to be a problem, hence aircraft carried it and FuG202.
Many developed in the 1920s and 1930s; a few saw combat during World War II. After the establishment of the USAF, light observation aircraft became an Army mission. O-2 Skymaster and OV-10 Broncos were Forward Air Control (FAC) aircraft of the Vietnam War, retired in the late 1970s, replaced by the OA-10A version of the A-10 Thunderbolt II.
Company G (Long Range Surveillance), 143d Infantry, a corps-level unit, was inactivated in September 2001; [18] [17] the division-level 143d Infantry Detachment (Long Range Surveillance), a separate unit with no lineage connection to the 143d Infantry Regiment, [19] remained active.
A long-range surveillance team from the 82nd Airborne Division in Afghanistan during 2007. Long-range surveillance (LRS) teams (pronounced "lurse") were elite, specially-trained surveillance units of the United States Army employed for clandestine operation by Military Intelligence for gathering direct human intelligence information deep within enemy territory.
Freya was an early warning radar deployed by Germany during World War II; it was named after the Norse goddess Freyja. During the war, over a thousand stations were built. A naval version operating on a slightly different wavelength was also developed as the Seetakt.
It was the U.S. Army's primary long-distance radar throughout World War II and was deployed around the world. It is also known as the Pearl Harbor Radar , since it was an SCR-270 set that detected the incoming raid about 45 minutes before the 7 December 1941, attack on Pearl Harbor commenced.