The North American B-45 Tornado was a medium-range, tactical nuclear bomber used by the US Air Force in the late 1940s and early 1950s. Although it had a limited career with the Strategic Air Command, it would be developed into an efficient photo-reconnaissance aircraft; the RB-45C. In this role, the Tornado carried out some of the most secret spy missions of the Cold War as a handful of the aircraft flew combat sorties in the Korean War.
The prototype of the North American B-45 Tornado, the XB-45, performed its maiden flight on March 17, 1947. It was flown by test pilot George Krebs and it was powered by four General Electric J47 turbojet engines. The flight test phase would take slightly more than a year as it was introduced into service with the US Air Force on April 22, 1948, as the B-45A. Since it represented only little advance in terms of speed and technology, this bomber was considered a stop-gap bomber until the arrival of some powerful long-range strategic bomber, like the B-52 Stratofortress.
In all, 143 Tornado aircraft would be built, in the B-45A, B-45B, and B-45C version. The last one, the B-45C, would be fitted with cameras and special avionics to carry out reconnaissance missions over Korea and the Soviet Union; it was the RB-45C. A 9,979-kg (22,000-lb) bombload could be carried by the improved B-45C variant. The reason it had a short career as a bomber was that, by the early 1950s, it was already too slow to survive attacks by the new and fast Soviet interceptors and fighters.
Below, the reconnaissance variant of the aircraft in flight. You can notice it had a solid nose, in contrast to the bomber variants, which had a glazed nose for the bomb aimer.
Technical Description
The North American B-45 Tornado was a four-seat, four-engine, subsonic monoplane. It had an all-metal fuselage and straight, shoulder-wing. The tail assembly was conventional but with a swept tail plane (horizontal stabilizer), which was mounted at the root of vertical stabilizer (fin). The B-45C variant was powered by four General Electric J47-GE-13 turbojet engines, which were mounted in pairs in pod-like nacelles in the aircraft wing. All variants featured a glazed nose section, which accommodated the bomb aimer. However, the reconnaissance version had a solid nose which housed the radar.
Specifications
Type: medium-range tactical bomber
Length: 23.14 m (76 feet)
Wing Span: 29.26 m (96 feet)
Wing Area: 109.16 m2 (1,200 square feet)
Height: 7.67 m (25 feet)
Power Plant: four General Electric J47-GE-13/5 turbojet engines, with each one of them being able to deliver 6,000 pounds of thrust.
Maximum Speed: 917 km/h (570 mph)
Range: 4,072 km (2,525 miles)
Service Ceiling: 12,270 m (40,250 feet)
Crew: 4
Armament: two 12.7-mm (.50-cal.) M7 Browning Machine guns; 9,979-kg of either conventional or nuclear bombs.
Below, the first version of the bomber, the B-45A, in 1949. You can see the nose glazing.
The B-45C version of the Tornado in flight in the 1950s. You can notice the 1,200-gallon wing-tip tanks to extend the aircraft range. These tanks were retained in the RB-45C reconnaissance variant.