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Northrop Grumman B-2 Spirit

Strategic Heavy Bomber / Stealth Bomber

Northrop Grumman B-2 Spirit

Strategic Heavy Bomber / Stealth Bomber


For decades Northrop engineers sought to perfect the flying wing - finally realized in the advanced Northrop Grumman B-2 Spirit stealth bomber.
National Flag Graphic
ORIGIN: United States
YEAR: 1997
STATUS: Active, In-Service
MANUFACTURER(S): Northrop Grumman - USA
OPERATORS: United States

Unless otherwise noted the presented statistics below pertain to the Northrop Grumman B-2A Spirit model. Common measurements, and their respective conversions, are shown when possible.
LENGTH: 69.00 feet (21.03 meters)
WIDTH: 172.01 feet (52.43 meters)
HEIGHT: 16.99 feet (5.18 meters)
WEIGHT (EMPTY): 158,071 pounds (71,700 kilograms)
WEIGHT (MTOW): 376,109 pounds (170,600 kilograms)
ENGINE: 4 x General Electric F118-GE-110 turbofans (non-afterburning) developing 17,300 lb of thrust each.
SPEED (MAX): 628 miles-per-hour (1010 kilometers-per-hour; 545 knots)
RANGE: 6,897 miles (11,100 kilometers; 5,994 nautical miles)
CEILING: 49,869 feet (15,200 meters; 9.44 miles)


Mission-specific ordnance can include any of the following held in two internal bomb bays (40,000 lb overall limit):

16 x AGM-129 ACMs
16 x B61 strategic freefall nuclear bomb
16 x B83 strategic freefall nuclear bomb
80 x MK 82 bombs
16 x MK 84 bombs
16 x JDAM
16 x GAM

Series Model Variants
• B-2 "Spirit" - Base Series Designation
• B-2A - Initial Production Model Designation; 21 aircraft produced.
• B-2A Block 30 - Modernized standard for all existing B-2A production aircraft.


Detailing the development and operational history of the Northrop Grumman B-2 Spirit Strategic Heavy Bomber / Stealth Bomber.  Entry last updated on 10/17/2018. Authored by Staff Writer. Content ©
The Northrop Grumman B-2 "Spirit" (generically referred to as the "Stealth Bomber") became the pinnacle of tail-less flight design that began in the mind of Northrop founder, Jack Northrop. Not only was the B-2 groundbreaking in its use of a tail-less approach, but the aircraft was designed from the outset with radar-evading/absorbing "stealth" capabilities in mind, generating a small heat signature and slim profile that incorporated body-coating materials. This would allow the bomber to infiltrate enemy airspace, hit vital targets against an unsuspecting enemy with precision weapons, and leave the area undetected - forming the spearhead of an assault that was to lead the way for additional waves of "non-stealth" aircraft to finish the job. The first-strike capability had become an essential facet of warfare in the 21st century and - as shown in the war in Kosovo through Allied Force - the B-2 would not disappoint once in service.

Developed as early as the 1970's the B-2 was not unveiled until 1988. It would be 1989 before the aircraft would see its first flight and, from then on, the "Spirit" would be charged with succeeding the Rockwell B-1B "Lancer", a high-speed, low-altitude penetrator utilizing powerful engines and a "swing-wing" design approach to fulfill its bombing role. Armed with the potent APQ-181 series radar suite, the B-2 Spirit has become a capable delivery platform where pin-point strikes against hardened targets are the call of the day.

From above, the B-2's body showcases a "double-W" shape. Vertical tail surfaces are non-existent and the large delta wing planform provides basic lifting while maneuverability and control is made possible by advanced onboard computer processing systems that were hard to come by in Northrop's earlier "flying wing" attempts. This measure of ability is not to be underscored as the basic flying wing presents many stability issues that were to be ironed out before the flying wing concept could be largely realized in a viable form. To put the importance of this advancement into context, the previous flying wing attempts of Northrop had a deadly tendency to stall and - in some cases - resulted in death to the test crew. The onboard systems of the B-2 reportedly do not let the aircraft stall, thus eliminating any piloting mistakes that could lead to a disastrous loss of the aircraft, its sensitive flight technology, and life of the two pilots.

The wind-tunnel-friendly profile of the B-2 shows off a low-profile design. Engines are housed in blended nacelles on either side of the blended cockpit section. The crew benefits on longer missions by the installation of a lavatory and sleeping accommodations installed just behind the cockpit. The large wing area of flying wings serves many beneficial purposes to mission capabilities (though at the expense of drag) - additional fuel stores can be integrated and internal weapons bays can be used to conceal ordnance, the latter quality helping to reduce the radar signature of the aircraft.

132 B-2 bombers were originally planned for procurement but ballooning program costs (the B-2 program cost well over $45 billion dollars to fund with a single B-2 costing about $1.2 billion dollars) and the end of the Cold War substantially reduced those figures to just 21. This end production total also included six developmental aircraft which were later all upgraded to full operational standard. The first B-2 bomber groups was formed in 1999 with the last aircraft delivered from the production lines in 1998. The series was to replace the B-52 Stratofortress line though both bombers have been retained in USAF service in addition to sixty or so of the Rockwell/Boeing B-1B Lancer series.

Northrop Grumman B-2 Spirit (Cont'd)

Strategic Heavy Bomber / Stealth Bomber

Northrop Grumman B-2 Spirit (Cont'd)

Strategic Heavy Bomber / Stealth Bomber

The B-2 saw its first taste of action in the war over Kosovo during 1999 and, later, over Afghanistan in the 2001 U.S.-led invasion. The aircraft was successful with its pinpoint strikes using JDAMs and GPS-guided munitions. To showcase the aircraft's amazing endurance, missions to Europe and the Middle East originated from locations within the United States (Missouri is the home state of the B-2 flight group) and helped along by in-flight refueling. Before he passed, Northrop founder Jack Northrop himself was able to see the B-2 as it lay under development in its still-classified form - seeing the realization of his flying wing dream. Today the B-2 - though limited by available numbers - provides the United States with a lethal first-strike / first-kill capability unmatched throughout the world.

On February 22, 2008, the first reported accident of a stealth bomber was reported when a B-2 Spirit crashed shortly after takeoff in Guam while on support of western-Pacific operations. Both pilots ejected safely but the incident resulted in the grounding of the other three B-2's present at the airbase. Investigation revealed that humidity had built up on several of the B-2's sensors, distorting pre-flight checks leading to the accident.

The original B-2A was since been upgraded with Extremely High Frequency (EHF) SATellite COMmunications (SATCOM) equipment and broader support for more advanced precision drop ordnance. Communications and the aircraft's stealth body coating have also been addressed as has reducing maintenance times and cost.

Of the 21 B-2As procured, nineteen of these are operationally available to the USAF. A sole example is used in the research and development role to further other programs. The series is expected to remain in frontline service into the late 2050s.


February 2018 - The B-2 Spirit fleet is set to be directly succeeded by the in-development B-21 stealth bomber by Northrop Grumman.

July 2018 - A B-2A bomber was used to test the viability of a B61-12 nuclear gravity bomb over the Tonopah Test Range in Nevada.

General Assessment (BETA)

Values are derrived from a variety of categories related to the design, overall function, and historical influence of this aircraft in aviation history.
MF Power Rating (BETA)
The MF Power Rating takes into account over sixty individual factors related to this aircraft entry. The rating is out of 100 total possible points.
Relative Maximum Speed Rating
Hi: 750mph
Lo: 375mph
    This entry's maximum listed speed (628mph).

    Graph average of 562.5 miles-per-hour.
City-to-City Ranges
Graph showcases the Northrop Grumman B-2A Spirit's operational range (on internal fuel) when compared to distances between major cities.
Aviation Era
Pie graph section
Pie graph section
Pie graph section
Pie graph section
Pie graph section
Useful in showcasing the era cross-over of particular aircraft/aerospace designs.
Unit Production Comparison
Comm. Market HI*: 44,000 units
Military Market HI**: 36,183 units

  * Commercial Market High belongs to Cessna 172.

  ** Military Market High belongs to Ilyushin Il-2.

Altitude Visualization
Small airplane graphic
Supported Roles
Ground Attack
Aerial Tanker
A2A=Air-to-Air; UAV=Unmanned; CAS=Close Support; ASW=Anti-Submarine; AEW=Airborne Early Warning; MEDEVAC=Medical Evac; EW=Electronic Warfare; SAR=Search-Rescue
Supported Arsenal
Graphical image of an aircraft air-to-surface missile
Graphical image of an air launched nuclear weapon
Graphical image of an aircraft conventional drop bomb munition
Graphical image of an aircraft guided bomb munition
Commitments / Honors
Military lapel ribbon for Operation Allied Force
Military lapel ribbon for the Arab-Israeli War
Military lapel ribbon for the Battle of Britain
Military lapel ribbon for the Battle of Midway
Military lapel ribbon for the Berlin Airlift
Military lapel ribbon for the Chaco War
Military lapel ribbon for the Cold War
Military lapel ribbon for the Cuban Missile Crisis
Military lapel ribbon for pioneering aircraft
Military lapel ribbon for the Falklands War
Military lapel ribbon for the French-Indochina War
Military lapel ribbon for the Golden Age of Flight
Military lapel ribbon for the 1991 Gulf War
Military lapel ribbon for the Indo-Pak Wars
Military lapel ribbon for the Iran-Iraq War
Military lapel ribbon for the Korean War
Military lapel ribbon for the 1982 Lebanon War
Military lapel ribbon for the Malayan Emergency
Military lapel ribbon representing modern aircraft
Military lapel ribbon for the attack on Pearl Harbor
Military lapel ribbon for the Six Day War
Military lapel ribbon for the Soviet-Afghan War
Military lapel ribbon for the Spanish Civil War
Military lapel ribbon for the Suez Crisis
Military lapel ribbon for the Vietnam War
Military lapel ribbon for Warsaw Pact of the Cold War-era
Military lapel ribbon for the WASP (WW2)
Military lapel ribbon for the World War 1
Military lapel ribbon for the World War 2
Military lapel ribbon for the Yom Kippur War
Military lapel ribbon for experimental x-plane aircraft
* Ribbons not necessarily indicative of actual historical campaign ribbons. Ribbons are clickable to their respective campaigns/operations.