It proved better than several similar models then being built, and was ordered by the RAF Coastal Command where it was known as ASV Mark V. It was used primarily on British Liberator GR bombers, where they were instrumental in closing the Mid-Atlantic Gap and the subsequent destruction of the German U-boat fleet in May/June 1943.
[1] Three particularly severe weather events in the spring of 1953 led to the formation of a Texas Tornado Warning Network.
The Weather Bureau agreed to operate and maintain the radars and provide warnings to the public when confirmed sightings were made.
[2] Approximately six years were required before the network attained full strength; about 17 radars were modified and installed under this joint effort by local government, state, and federal agencies, and a university.
[1] After 1956, the task of modifying the APS-2F radars so they could be fielded as WSR-1s, -1As, -3s, and -4s was transferred to Weather Bureau headquarters, which had to relocate some antennas that had been mounted in locations where they were difficult to maintain.