vessels operating from or through the Royal Naval Dockyard, but it attempted to maintain maritime patrols by using pilots from naval ships, RAF Darrell's Island, and the Bermuda Flying School. The agreement for bases in Bermuda stipulated that the US would, at its own expense, build an airfield capable of handling large landplanes that would be operated jointly by the US Army Air Force and the Royal Air Force. The airfield was named Kindley Field after Field Kindley, an American aviator who fought for Britain during World War I. RAF Transport Command relocated its operations to the airfield when it was completed in 1943, but RAF Ferry Command remained at Darrell's Island. The US Navy had established the Naval Operating Base at Bermuda's West End, a flying boat station from which maritime patrols were operated for the remainder of the war (the US Navy had actually begun operating such patrols from RAF Darrell's Island by using floatplanes and was waiting for their own base to become operational). The RAF and FAA facilities were closed after the war, which left only the US air bases in Bermuda. The Naval Operating Base ceased to be an air station in 1965, when its flying boats were replaced by Lockheed P-2 Neptunes operating from the Kindley Air Force Base (as the former US Army airfield had become). Those US air bases were in fact only two of several US military facilities that operated in Bermuda during the 20th century. The US abandoned many of the bases in 1949, and the remaining few were closed in 1995. The US accepted the "generous action... to enhance the national security of the United States" and immediately transferred in return 50 Caldwell, Wickes, and Clemson-class U.S. Navy destroyers, "generally referred to as the twelve hundred-ton type" (also known as "flush-deckers", or "four-pipers" after their four funnels). Forty-three ships initially went to the British Royal Navy and seven to the Royal Canadian Navy. In the Commonwealth navies, the ships were renamed after towns and so were known as the "Town" class, but they had originally belonged to three classes (Caldwell, Wickes, and Clemson). Before the end of the war, nine others had also served with the Royal Canadian Navy. Five Towns were manned by Royal Norwegian Navy crews, with the survivors later returned to the Royal Navy. was manned by Royal Netherlands Navy sailors before her assignment to the