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The AN/FRD-10 is a United States Navy circularly disposed antenna array (CDAA), built at a number of locations during the Cold War for high frequency radio direction finding and signals intelligence. In the Joint Electronics Type Designation System , FRD stands for fixed ground, radio, direction finding. 14 sites were originally constructed as ...
The 50-mile race walk is a racewalking event. The event is competed as a road race. See Kennedy march for the 50-mile walk started a fitness challenge. Athletes must always keep in contact with the ground and the supporting leg must remain straight until the raised leg passes it. 50 miles is 80.47 kilometers. [2] [3] [4] [5]
For a traditional PAR, the ability to track the aircraft position is dependent on the aircraft radar cross section. TLS is based on transponder multilateration and trilateration and consequently tracks all aircraft that respond to the interrogations. Omnidirectional antenna surveillance coverage of the TLS extends to 100 nautical miles. [2]
The F-10 was used as a radar testbed to develop the APQ-72 radar. The nose of an F-4 Phantom was added to the front of an F-10B. Another F-10 had a modified radome installed by the radar manufacturer Westinghouse. Yet another TF-10B was modified with the nose from an A-4 Skyhawk. [49] In 1968, three Skyknights were transferred to the U.S. Army.
Q-par Angus was a designer and manufacturer of microwave and RF antennas for commercial and defense use; in May 2013 the company was acquired by Solid State PLC. [ 1 ] The company was formed in 1973 in Birmingham, UK, by Dr Richard Holliday and his wife Jenny Holliday.
Precision approach radar or PAR is a type of radar guidance system designed to provide lateral and vertical guidance to an aircraft pilot for landing, until the landing threshold is reached. [1] Controllers monitoring the PAR displays observe each aircraft 's position and issue instructions to the pilot that keep the aircraft on course and ...
A Douglas EF-10B Skyknight (BuNo 127047) of Marine Composite reconnaissance Squadron 2 (VMCJ-2) "Playboys" in flight, circa in the 1960s. VMCJ-2 was commissioned on 1 December 1955 and began to fly electronic warfare missions off North Korea, China and the Soviet Union immediatley.
The antenna is a 22.0 ft × 4.6 ft (6.7 m × 1.4 m) elliptical reflector of open lattice construction, mounted on a small two-wheeled trailer. Rotation rate is 20 rpm, the BCC – Battery Control Central and the CWAR are synchronized by the PAR revolutions and the PAR system trigger. AN/MPQ-50 (Improved Hawk to Phase III)