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Four-engine heavy bomber 250 mph cruise, 1500 mile range, 4000 lb bomb load [43] Armstrong Whitworth B.12/36, Short Stirling, Supermarine Type 316: P.13/36 OR.41 Twin-engined medium bomber for "world-wide use" [note 1] introduction delayed due to production difficulties necessitating further order of Whitleys & Wellingtons [note 2]
The Convair B-36 "Peacemaker" [N 1] is a strategic bomber built by Convair and operated by the United States Air Force (USAF) from 1949 to 1959. The B-36 is the largest mass-produced piston-engined aircraft ever built, although it was exceeded in span and weight by the one-off Hughes H-4 Hercules.
In 1955, the USAF issued requirements for a new bomber combining the payload and range of the Boeing B-52 Stratofortress with the Mach 2 maximum speed of the Convair B-58 Hustler. [7] In December 1957, the USAF selected North American Aviation 's B-70 Valkyrie for this role, a six-engine bomber that could cruise at Mach 3 at high altitude ...
The deficiencies discovered on AV-1 were almost completely solved on the second XB-70, which first flew on 17 July 1965. On 3 January 1966, XB-70 No. 2 attained a speed of Mach 3.05 while flying at 72,000 ft (22,000 m). AV-2 reached a top speed of Mach 3.08 and maintained it for 20 minutes on 12 April 1966. [91]
The North American A-5 Vigilante was a supersonic carrier-based bomber. At the time of its introduction, the Vigilante was one of the largest and by far the most complex aircraft to operate from an aircraft carrier. It was furnished with a high-mounted swept wing with a boundary-layer control system (blown flaps) to improve low-speed lift. [6]
Further requirements included a top speed of 250 knots (460 km/h; 290 mph), a cruising speed of 200 knots (370 km/h; 230 mph) and a range of 1,000 nmi (1,900 km; 1,200 mi) with an 800 kg (1,800 lb) bomb load or 2,072 nmi (3,837 km; 2,384 mi) without external armament.
In September 1947, the Heavy Bombardment Committee was convened to ascertain performance requirements for a nuclear bomber. Formalized on 8 December 1947, these requirements called for a top speed of 500 miles per hour (430 kn; 800 km/h) and an 8,000-mile (7,000 nmi; 13,000 km) range, far beyond the capabilities of the 464-29.
The B Mk.XVI had a maximum speed of 408 mph (657 km/h), an economical cruise speed of 295 mph (475 km/h) at 20,000 ft, and 350 mph (560 km/h) at 30,000 ft, [153] ceiling of 37,000 ft (11,000 m), a range of 1,485 nmi (2,750 km), and a climb rate of 2,800 ft per minute (14 m/s). The type could carry 4,000 lb (1,800 kg) of bombs.