North American B-45 Tornado

B-45 Tornado
Static display of RB-45C, AF Ser. No. 48-037
General information
Type	Strategic bomber
National origin	United States
Manufacturer	North American Aviation
Status	Retired
Primary users	United States Air Force Royal Air Force
Number built	143
History
Introduction date	22 April 1948
First flight	17 March 1947
Retired	1959

The North American B-45 Tornado is an early American jet bomber designed and manufactured by aircraft company North American Aviation. It has the distinction of being the first operational jet bomber to enter service with the United States Air Force (USAF), as well as the first multiengine jet bomber to be refueled in midair.^[1]

The B-45 originated from a wartime initiative launched by the U.S. War Department, which sought a company to develop a jet-propelled bomber to equal those being fielded by Nazi Germany, such as the Arado Ar 234. Following a competitive review of the submissions, the War Department issued a contract to North American to develop its NA-130 proposal; on 8 September 1944, work commenced on the assembly of three prototypes. Progress on the program was stalled by post-war cutbacks in defense expenditure but regained importance due to growing tensions between America and the Soviet Union. On 2 January 1947, North American received a production contract for the bomber, designated B-45A, from the USAF. On 24 February 1947, the prototype performed its maiden flight.

Soon after its entry to service on 22 April 1948, B-45 operations were troubled by technical problems, in particular poor engine reliability. The USAF found the plane to be useful during the Korean War performing both conventional bombing and aerial reconnaissance missions. On 4 December 1950, the first successful interception of a jet bomber by a jet fighter occurred when a B-45 was shot down by a Soviet-built MiG-15 inside Chinese airspace. During the early 1950s, 40 B-45s were extensively modified so that they could be equipped with nuclear weapons. Improvements were made to their defensive systems and the fuel tankage was expanded to increase their survivability and range.

In its heyday, the B-45 was important to United States defense strategy, performing the strategically critical deterrence mission for several years during the early 1950s, after which the Tornado was superseded by the larger and more capable Boeing B-47 Stratojet. Both B-45 bombers and reconnaissance RB-45s served in the USAF's Strategic Air Command from 1950 until 1959, when the USAF withdrew the last ones in favor of the Convair B-58 Hustler, an early supersonic bomber. The Tornado was also adopted by the Royal Air Force (RAF) and operated from bases in United Kingdom, where it was used to overfly the Soviet Union on intelligence-related missions. Despite being painted with RAF markings and flown by RAF crew, they did not belong to the RAF; the RAF merely operated them on behalf of the United States.