America's Nuclear Triad (2024)

Consisting of 46 nuclear-capable B-52H Stratofortress and 20 B-2A Spirit aircraft, the nation's bomber fleet is the most flexible leg of the triad, capable of providing massive firepower in a short time anywhere on the globe, even through the most advanced defenses.

B-52H Stratofortress

The B-52 is a long-range, heavy bomber that can perform a variety of missions. It can carry nuclear or precision guided conventional weapons with worldwide precision navigation. The B-52 is slated to be in service beyond 2040.

America's Nuclear Triad (1)

In a conventional conflict, the B-52 can perform strategic attack, close-air support, air interdiction, offensive counter-air and maritime operations.

During Desert Storm, B-52s delivered 40 percent of all the weapons dropped by coalition forces. It is highly effective when used for ocean surveillance, and can assist the U.S. Navy in anti-ship and mine-laying operations. Two B-52s, in two hours, can monitor 140,000 square miles (364,000 square kilometers) of ocean surface.

All B-52s can be equipped with two electro-optical viewing sensors, a forward-looking infrared and advanced targeting pods to augment targeting, battle assessment, and flight safety, thus further improving its combat ability.

Pilots wear night vision goggles, or NVG, to enhance their vision during night operations. Night vision goggles provide greater safety during night operations by increasing the pilot's ability to visually clear terrain, to increase the peacetime and combat situational awareness of the aircrew and visually acquire other aircraft.

B-52s are currently upgrading from the Litening Advanced Targeting Pod to the Sniper Advanced Targeting Pod. Sniper pods provide improved long-range target detection/identification and continuous stabilized surveillance for all missions, including close air support of ground forces. The pod’s advanced targeting and image processing technology significantly increases the combat effectiveness of the B-52 during day, night and under-the-weather conditions in the attack of ground targets with a variety of standoff weapons (i.e., laser-guided bombs, conventional bombs and GPS-guided weapons).

The use of aerial refueling gives the B-52 a range limited only by crew endurance. It has an unrefueled combat range in excess of 8,800 miles (14,080 kilometers).

For more than 40 years B-52 Stratofortresses have been the backbone of the manned strategic bomber force for the United States. The B-52 is capable of dropping or launching the widest array of weapons in the U.S. inventory. This includes gravity bombs, cluster bombs, precision guided missiles and joint direct attack munitions. Updated with modern technology the B-52 will be capable of delivering the full complement of joint developed weapons and will continue into the 21st century as an important element of our nation's defenses. Current engineering analyses show the B-52's life span to extend beyond the year 2040.

The B-52A first flew in 1954, and the B model entered service in 1955. A total of 744 B-52s were built with the last, a B-52H, delivered in October 1962. The first of 102 B-52H's was delivered to Strategic Air Command in May 1961. The H model can carry up to 20 air launched cruise missiles. In addition, it can carry the conventional cruise missile that was launched in several contingencies during the 1990s and 2000s, starting with Operation Desert Storm and culminating with Operation Iraqi Freedom.

The aircraft's flexibility was evident in Operation Desert Storm and again during Operation Allied Force. B-52s struck wide-area troop concentrations, fixed installations and bunkers, and decimated the morale of Iraq's Republican Guard. From Sept. 2 to 3, 1996, two B-52H's struck Baghdad power stations and communications facilities with 13 AGM-86C conventional air launched cruise missiles, or CALCMs, as part of Operation Desert Strike. At that time, this was the longest distance flown for a combat mission involving a 34-hour, 16,000 statute mile round trip from Barksdale Air Force Base, Louisiana.

In 2001, the B-52 contributed to the success in Operation Enduring Freedom, providing the ability to loiter high above the battlefield and provide close air support through the use of precision guided munitions.

The B-52 also played a role in Operation Iraqi Freedom. On March 21, 2003, B-52Hs launched approximately 100 CALCMs during a night mission.

Only the H model is still in the Air Force inventory. It is assigned to the 5th Bomb Wing at Minot Air Force Base, North Dakota, and the 2nd Bomb Wing at Barksdale Air Force Base, Louisiana, both of which fall under Air Force Global Strike Command; and to the Air Force Reserve Command's 307th Bomb Wing at Barksdale Air Force Base.

  • Primary Function: Heavy Bomber

  • Contractor: Boeing Military Airplanes Co.

  • Power Plant: Eight Pratt & Whitney engines TF33-P-3/103 turbofan

  • Thrust: each engine up to 17,000 pounds

  • Wingspan: 185 feet / 56.4 meters

  • Length: 159 feet, 4 inches / 48.5 meters

  • Height: 40 feet, 8 inches / 12.4 meters

  • Weight: ~185,000 pounds / 83,250 kilograms

  • Maximum takeoff weight: 488,000 pounds / 219,600 kilograms

  • Fuel Capacity: 312,1970 pounds / 141,610 kilograms

  • Payload: 70,000 pounds / 31,500 kilogramst

  • Speed: 650 miles per hour / Mach 0.84

  • Range: 8,800 miles / 7,652 nautical miles

  • Ceiling: 50,000 feet / 15,151.5 meters

  • Armament: ~70,000 pounds / 31,500 kilograms mixed ordnance - bombs, mines and missiles (modified to carry air-launched cruise missiles)

  • Crew: Five - aircraft commander, pilot, radar navigator, navigator and electronic warfare officer

  • Unit Cost: $84 million / fiscal 2012 constant dollars

  • Initial Operating Capability: April 1952

  • Inventory: Active Force - 58 | Reserve - 18 | Air National Guard - 0

Current as of September 2014

B-2A Spirit

The B-2 Spirit is a multirole stealth bomber capable of delivering both conventional and nuclear weapons. The B-21 Raider will first supplement, then eventually replace, the B-2 beginning in the mid-2020s.

America's Nuclear Triad (2)

The B-2 provides the penetrating flexibility and effectiveness inherent in manned bombers. Its low-observable, or "stealth," characteristics give it the unique ability to penetrate an enemy's most sophisticated defenses and threaten its most valued, and heavily defended, targets. The B-2’s capability to penetrate air defenses and threaten effective retaliation provides a strong, effective deterrent and combat force well into the 21st century.

The revolutionary blending of low-observable technologies with high aerodynamic efficiency and large payload gives the B-2 important advantages over existing bombers. Its low-observability provides it greater freedom of action at high altitudes, thus increasing its range and a better field of view for the aircraft's sensors. Its unrefueled range is approximately 6,000 nautical miles (9,600 kilometers).

The B-2's low observability is derived from a combination of reduced infrared, acoustic, electromagnetic and visual and radar signatures. These signatures make it difficult for sophisticated defensive systems to detect, track and engage the B-2. Many aspects of the low-observability process remain classified; however, the B-2's composite materials, special coatings and flying-wing design all contribute to its "stealthiness."

The B-2 has a crew of two pilots, a pilot in the left seat and mission commander in the right, compared to the B-1B's crew of four and the B-52's crew of five.

The first B-2 was publicly displayed Nov. 22, 1988, when it was rolled out of its hangar at Air Force Plant 42, Palmdale, California. Its first flight was July 17, 1989. The B-2 Combined Test Force, Air Force Flight Test Center, Edwards Air Force Base, California, is responsible for flight testing the engineering, manufacturing and development aircraft on the B-2.

Whiteman Air Force Base, Missouri, is the only operational base for the B-2. The first aircraft, Spirit of Missouri, was delivered Dec. 17, 1993. Depot maintenance responsibility for the B-2 is performed by Air Force contractor support and is managed at the Oklahoma City Air Logistics Center at Tinker Air Force Base, Oklahoma.

The combat effectiveness of the B-2 was proved in Operation Allied Force, where it was responsible for destroying 33 percent of all Serbian targets in the first eight weeks, by flying nonstop to Kosovo from its home base in Missouri and back. In support of Operation Enduring Freedom, the B-2 flew one of its longest missions to date from Whiteman to Afghanistan and back. The B-2 completed its first-ever combat deployment in support of Operation Iraqi Freedom, flying 22 sorties from a forward operating location as well as 27 sorties from Whiteman Air Force Base and releasing more than 1.5 million pounds of munitions. The aircraft received full operational capability status in December 2003. On Feb. 1, 2009, the Air Force's newest command, Air Force Global Strike Command, assumed responsibility for the B-2 from Air Combat Command.

The prime contractor, responsible for overall system design and integration, is Northrop Grumman Integrated Systems Sector. Boeing Military Airplanes Co., Hughes Radar Systems Group, General Electric Aircraft Engine Group and Vought Aircraft Industries Inc., are key members of the aircraft contractor team.

  • Primary Function: Multirole Heavy Bomber

  • Contractor: Northrop Grumman Corp. and Contractor Team:

    • Boeing Military Airplanes Co.
    • Hughes Radar Systems Group
    • General Electric Aircraft Engine Group and Vought Aircraft Industries Inc.
  • Power Plant: Four General Electric F118-GE-100 engines

  • Thrust: 17,300 pounds each engine

  • Wingspan: 172 feet / 52.12 meters

  • Length: 69 feet / 20.9 meters

  • Height: 17 feet / 5.1 meters

  • Weight: 160,000 / 72,575 kilograms

  • Maximum takeoff weight: 336,500 pounds / 152,634 kilograms

  • Fuel Capacity: 167,000 pounds / 75,750 kilograms

  • Payload: 40,000 pounds / 18,144 kilogramst

  • Speed: High subsonic

  • Range: Intercontinental

  • Ceiling: 50,000 feet / 15,240 meters

  • Armament: Conventional or nuclear weapons

  • Crew: Two pilots

  • Unit Cost: Approximately $1.157 billion / fiscal 1998 constant dollars

  • Initial Operating Capability: April 1997

  • Inventory: Active Force - 21 (1 test) | Reserve - 0 | Air National Guard - 0

Current as of September 2015

America's Nuclear Triad (2024)
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