b52 bomber On 23 November 1945, Air Materiel Command (AMC) issued desired performance characteristics for a new strategic bomber "capable of carrying out the strategic mission without dependence upon advanced and intermediate bases controlled by other countries". [ 14 ] The aircraft was to have a crew of five or more turret gunners , and a six-man relief crew. It was required to cruise at 300 miles per hour (260 kn; 480 km/h) at 34,000 feet (10,000 m) with a combat radius of 5,000 miles (4,300 nmi; 8,000 km). The armament was to consist of an unspecified number of 20 mm cannons and 10,000 pounds (4,500 kg) of bombs. [ 15 ] On 13 February 1946, the USAAF issued bid invitations for these specifications, with Boeing, Consolidated Aircraft , and Glenn L. Martin Company submitting proposals. [ 15 ]. play b52.club Các mẫu B-52 hiện đại được trang bị radar tối tân và hệ thống tác chiến điện tử để đối phó tên lửa phòng không. b52.club ios On 24 December 1972, during the same bombing campaign, the B-52 Diamond Lil was headed to bomb the Thái Nguyên railroad yards when tail gunner Airman First Class Albert E. Moore spotted a fast-approaching MiG-21. [ 182 ] Moore opened fire with his quad .50 caliber guns at 4,000 yd (3,700 m), and kept shooting until the fighter disappeared from his scope. Technical Sergeant Clarence W. Chute, a tail gunner aboard another Stratofortress, watched the MiG catch fire and fall away; [ 180 ] this was not confirmed by the VPAF. [ 183 ] Diamond Lil is preserved on display at the United States Air Force Academy in Colorado . [ 182 ] Moore was the last bomber gunner believed to have shot down an enemy aircraft with machine guns in aerial combat . [ 180 ]
