Northrop Grumman B-2 Spirit

Last updated: February 18, 2026

✈️ Aircraft Specifications

DesignationB-2A
ManufacturerNorthrop Grumman
Country of OriginUnited States
First Flight1989
Length21.03 m (69 ft)
Max Speed (Mach)0.95
Max Speed (km/h)1,010 km/h
Service Ceiling15,200 m (49,871 ft)
Range11,100 km (6,893 mi)
Engine4x General Electric F118-GE-100 turbofans
Crew2
StatusActive
B-2 Spirit stealth strategic bomber

Overview

The B-2 Spirit is the most expensive aircraft ever built at $2.1 billion per unit—and arguably the most capable. This flying-wing stealth bomber can penetrate the most sophisticated air defenses in the world and deliver both conventional and nuclear weapons with pinpoint accuracy from intercontinental range.

Design & Development

The B-2’s revolutionary flying-wing design eliminates the fuselage and tail—the largest radar reflectors on conventional aircraft. Its smooth, curved surfaces (second-generation stealth, unlike the F-117’s facets) scatter radar energy in all directions. The four buried GE F118 engines have serpentine inlets and cooled exhausts to minimize infrared and radar signatures. The aircraft’s radar cross-section is reportedly comparable to a large bird.

Operational History

Only 21 B-2s were built (20 operational + 1 test). They have seen combat in Kosovo (1999), Afghanistan (2001), Iraq (2003), and Libya (2011). B-2s routinely fly 40+ hour round-trip missions from Whiteman AFB in Missouri to targets anywhere on Earth, refueling in flight. In 2017, B-2s struck ISIS camps in Libya—a 34-hour round trip dropping 108 precision-guided bombs.

Unique Features

  • Can carry 40,000 lb of ordnance including 16 B83 nuclear bombs
  • Crew of 2 with sleeping quarters for ultra-long missions
  • Automated mission planning can retarget weapons in flight
  • Costs $135,000 per flight hour to operate

Armament

  • 2 internal bays, 40,000 lb total
  • 16× B83/B61 nuclear bombs
  • 80× Mk 82 500 lb bombs
  • 16× GBU-31 JDAM 2,000 lb
  • 216× GBU-39 Small Diameter Bombs
  • AGM-158 JASSM cruise missiles
  • GBU-57 MOP 30,000 lb bunker buster

Video

Frequently Asked Questions

How fast is the B-2 Spirit?

The B-2 is subsonic at Mach 0.95 (630 mph). It prioritizes stealth over speed.

Why were only 21 B-2s built?

The original plan was 132, but the Cold War’s end and extreme cost ($2.1 billion each) led Congress to cap production. One crashed in 2008, leaving 20.

How much does a B-2 cost?

Approximately $2.1 billion per unit (1997 dollars), making it the most expensive aircraft ever built.

Is the B-2 still in service?

Yes. In USAF service since 1997. Has flown 30+ hour combat missions from Whiteman AFB.

References & Sources

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Sean

Aviation enthusiast and curator of the Supersonic Aircraft Encyclopedia. Sean has been passionate about different kinds of flight since he was little and maintains detailed specs and history for every aircraft featured on this site.

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