two SAC B-58 wings with a strategic-bombardment mission. During the 1960s the wing established world-flight speed records in the B-58, beginning on 12 January 1961, when it set six international speed and payload records on a single flight, five of which were held by the Soviet Union. Three of these records lasted only two days, when they were broken by another 43rd Hustler, which flew over a 1,000 km closed course with a payload of 2,000 kg at an average speed of 1284.73 mph, simultaneously breaking the 1,000 kg and no payload records. The crew on the second flight was awarded the Thompson Trophy. On 29 May 1961, a wing B-58 flew from New York to Paris in 3 hours, 14 minutes, and 45 seconds, establishing a new transatlantic speed record of 1,089.36 mph, earning the crew the MacKay Trophy. On 5 March 1962, a wing B-58 flew from Los Angeles to New York at an average speed of 1,214.65 mph. It flew from Los Angeles to New York and back in 4 hours, 41 minutes, and 15 seconds. This earned the crew another MacKay Trophy and the Bendix Trophy. The wing, which had been prevented from being declared combat-ready by the B-58's teething problems, was finally declared as such in August 1962. In response to the Cuban Missile Crisis, the wing was placed on alert in October 1962. By the mid-1960s, the B-58 had become a fairly effective weapons system. By the end of 1962, USAF crews had made over 10,500 flights and logged 53,000 hours (1150 of them supersonic, including 375 at Mach 2). Initially, all B-58 training was conducted by the 43rd's combat-crew training school. From 1960 through 1964, this unit fulfilled the requirements of both its parent 43rd Bomb Wing and the second B-58 wing, the 305th Bomb Wing. In August 1964, the 305th activated its own CCTS. The wing also controlled an air-refueling squadron from August 1964. Hustler operations at Little Rock Air Force Base In September 1964, the 43rd Bomb Wing relocated to Little Rock AFB, Arkansas. The active service life of the B-58 was destined to be rather short. Phaseout of the B-58 fleet was ordered by Secretary of Defense Robert McNamara in December 1965, since it was felt that the high-altitude performance of the B-58 could no longer guarantee success against increasingly sophisticated Soviet air defenses. Although SAC had never been happy