The Northrop Grumman B-2 Spirit is an American military heavy bomber designed for long-range strike using low-observable technology. Its flying-wing configuration is closely associated with its stealth design. Operated by the United States Air Force, the B-2 has both conventional and nuclear missions and uses a crew of two pilots.[1]B-2 SpiritUnited States Air Force · af.mil · Accessed 2026-09-13Open source details[2]US Air Force, Northrop Grumman Celebrate 25th Anniversary of B-2 First FlightNorthrop Grumman · investor.northropgrumman.com · Accessed 2026-09-13Open source details
Development and introduction
The B-2 was publicly rolled out at Palmdale, California, on 22 November 1988 and first flew on 17 July 1989. The first operational aircraft, Spirit of Missouri, arrived at Whiteman Air Force Base on 17 December 1993.[1]B-2 SpiritUnited States Air Force · af.mil · Accessed 2026-09-13Open source details
Northrop Grumman marked the twentieth anniversary of that delivery in December 2013. Its account describes the arrival at Whiteman as the start of the aircraft's operational history, while recognising the industrial and military personnel required to sustain the programme.[3]Northrop Grumman celebrates twentieth anniversary of first B-2 deliveryNorthrop Grumman · investor.northropgrumman.com · Accessed 2026-09-13Open source details
Configuration and role
The B-2 combines long range with a design intended to reduce its observability to defensive systems. Low observability supports its penetrating-bomber mission; it does not make detection physically impossible. Northrop Grumman identifies the aircraft as a central part of the American long-range strike force.[2]US Air Force, Northrop Grumman Celebrate 25th Anniversary of B-2 First FlightNorthrop Grumman · investor.northropgrumman.com · Accessed 2026-09-13Open source details
The two pilots divide flying and mission responsibilities. The Air Force identifies the left-seat pilot and right-seat mission commander in its description, a relatively small crew for a heavy bomber conducting extended missions.[1]B-2 SpiritUnited States Air Force · af.mil · Accessed 2026-09-13Open source details
Operations
The B-2 flew combat missions during Operation Allied Force, including sorties from Missouri to targets in the Balkans and back. It subsequently participated in operations connected with Afghanistan and Iraq. These deployments demonstrated the relationship between the aircraft's range and the wider support arrangements needed for distant operations.[1]B-2 SpiritUnited States Air Force · af.mil · Accessed 2026-09-13Open source details
Sustainment
The programme extends beyond manufacture of the aircraft. Northrop Grumman's account of the first-delivery anniversary credits engineers, maintainers and other personnel with preserving its effectiveness over two decades. The operational history therefore includes continuing support and technical work as well as combat deployments.[3]Northrop Grumman celebrates twentieth anniversary of first B-2 deliveryNorthrop Grumman · investor.northropgrumman.com · Accessed 2026-09-13Open source details
Northrop Grumman is the prime contractor. Its Palmdale facilities built the aircraft and provide periodic programmed depot maintenance, including comprehensive airframe overhauls. This continuing industrial work complements maintenance performed by the military personnel who operate the fleet.[2]US Air Force, Northrop Grumman Celebrate 25th Anniversary of B-2 First FlightNorthrop Grumman · investor.northropgrumman.com · Accessed 2026-09-13Open source details
Significance
The Spirit is a prominent operational example of a low-observable flying-wing bomber. Its importance lies in the combination of that configuration with long-range missions, specialised support and a sustained operational history.[1]B-2 SpiritUnited States Air Force · af.mil · Accessed 2026-09-13Open source details[3]Northrop Grumman celebrates twentieth anniversary of first B-2 deliveryNorthrop Grumman · investor.northropgrumman.com · Accessed 2026-09-13Open source details