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Rockwell B-1B Lancer

Rockwell B-1B Lancer

Bomber Aircraft

Rockwell B-1B Lancer

Rockwell Aircraft

The Rockwell B-1 Lancer is a supersonic variable-sweep wing, heavy bomber in use by the United States Air Force.

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Rockwell B-1B Lancer

The Rockwell B-1 Lancer is a supersonic variable-sweep wing, heavy bomber used by the United States Air Force. It is commonly called the “Bone” (from “B-One”).It is one of three strategic bombers in the U.S. Air Force fleet as of 2021, the other two being the B-2 Spirit and the B-52 Stratofortress.

The B-1 was first envisioned in the 1960s as a platform that would combine the Mach 2 speed of the B-58 Hustler with the range and payload of the B-52, and was meant to ultimately replace both bombers. After a long series of studies, Rockwell International (now part of Boeing) won the design contest for what emerged as the B-1A. This version had a top speed of Mach 2.2 at high altitude and the capability of flying for long distances at Mach 0.85 at very low altitudes.

Design

The second B-1B, “The Star of Abilene”, was the first B-1B delivered to SAC in June 1985. Initial operational capability was reached on 1 October 1986 and the B-1B was placed on nuclear alert status.[108][109] The B-1 received the official name “Lancer” on 15 March 1990. However, the bomber has been commonly called the “Bone”; a nickname that appears to stem from an early newspaper article on the aircraft wherein its name was phonetically spelled out as “B-ONE” with the hyphen inadvertently omitted.[1]

Rockwell Aircraft

Rockwell

RoleSupersonic strategic heavy bomber
National originUnited States
ManufacturerNorth American Rockwell/Rockwell International
Boeing
First flight23 December 1974; 46 years ago
Introduction1 October 1986
StatusIn service
Primary userUnited States Air Force
Produced1973–1974, 1983–1988
Number builtB-1A: 4
B-1B: 100

Variants

Variants

 
The rear section showing the B-1A’s pointed radome
B-1A
The B-1A was the original B-1 design with variable engine intakes and Mach 2.2 top speed. 
B-1B
The B-1B is a revised B-1 design with reduced radar signature and a top speed of Mach 1.25. It is optimized for low-level penetration. A total of 100 B-1Bs were produced.[149]
B-1R
The B-1R was a proposed upgrade of existing B-1B aircraft.[150] The B-1R (R for “regional”) would be fitted with advanced radars, air-to-air missiles, and new Pratt & Whitney F119 engines.

Operators 

 
USAF B-1B arrives at Royal International Air Tattoo 2008

The USAF had 62 B-1Bs in service as of August 2017.[122] In August 2019, six of them were fully mission-capable.[152]

 United States
United States Air Force
Strategic Air Command 1985–1992
Air Combat Command 1992–2015
Air Force Global Strike Command 2015–present

Specifications (B-1B Lancer)

General characteristics

  • Crew: 4 (Aircraft Commander, Pilot, Offensive Systems Officer, and Defensive Systems Officer)
  • Length: 146 ft (45 m)
  • Wingspan: 137 ft (42 m)
  • Lower wingspan: 79 ft (24 m) swept
  • Height: 34 ft (10 m)
  • Wing area: 1,950 sq ft (181 m2)
  • Airfoil: NACA69-190-2
  • Empty weight: 192,000 lb (87,090 kg)
  • Gross weight: 326,000 lb (147,871 kg)
  • Max takeoff weight: 477,000 lb (216,364 kg)
  • Powerplant: 4 × General Electric F101-GE-102 afterburning turbofan engines, 17,390 lbf (77.4 kN) thrust each dry, 30,780 lbf (136.9 kN) with afterburner

Performance

Performance

  • Maximum speed: 721 kn (830 mph, 1,335 km/h) at 40,000 ft (12,000 m), 608 kn (1,126 km/h) at 200–500 ft (61–152 m)
  • Maximum speed: Mach 1.25
  • Range: 5,100 nmi (5,900 mi, 9,400 km) or 7,600 km with a weapon load of 16,800 kg[166]
  • Combat range: 2,993 nmi (3,444 mi, 5,543 km)
  • Service ceiling: 60,000 ft (18,000 m)
  • Rate of climb: 5,678 ft/min (28.84 m/s)
  • Wing loading: 167 lb/sq ft (820 kg/m2)
  • Thrust/weight: 0.28

Related

  • Armament
    Hardpoints: 6 external hardpoints for of ordnance
    with a capacity of 50,000 pounds (23,000 kg),with provisions to carry combinations of:
    Bombs:Mk-82 air inflatable retarder (AIR) general purpose (GP) bombs
    Mk-82 low drag general purpose (LDGP) bombs
    Mk-62 Quickstrike sea mines
    Mk-84 general-purpose bombs

Aircrafttoaal encyclopedia

An air force, also known in some countries as an aerospace force or air army, is in the broadest sense, the national military branch that primarily conducts aerial warfare.