Air Force B-2 Spirit over the Pacific Ocean in May 2006. Role National origin Manufacturer First flight 17 July 1989 Introduction April 1997 Status In service Primary user Produced 1988-2000 Number built 21 Program cost US$44.75 billion (through 2004) Unit cost $737 million (1997 approx. ) The Northrop Grumman B-2 Spirit, also called the Stealth Bomber, is an American.

It has a lot of technology, and it is designed to get through many. It can drop both. Two people fly the bomber, and it can drop up to 80 500 lb (230 kg)-class -guided bombs, or sixteen 2,400 lb (1,100 kg). The bomber began being designed as the 'Advanced Technology Bomber' (ATB) during the.

The designing of the ATB continued during the. The bomber was designed and is made by, with help from. Each aircraft cost US$737 million (in 1997 dollars).

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Because the bomber is very expensive, the was in the. The end of the meant that the bomber was not really needed anymore. Congress wanted to buy 132 bombers, but during the late 1980s and 1990s, Congress reduced this to 21. In 2008, a B-2 was destroyed in. The crew got out safely. 20 B-2s are being used by the.

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Although the B-2 was supposed to be a mainly nuclear bomber, it was first used in combat to drop normal on during the in 1999. It was used during the and it is being used in the war in. References.