B-1 Lancer Profile

B-1 Lancer Profile

The B-1 Lancer is a four-engine, variable-sweep wing strategic bomber. The B-1 is supersonic bomber with sufficient range and payload to replace the Boeing B-52 Stratofortress.

National origin : United States
Manufacturer : North American Rockwell/Rockwell International, Boeing
Role : Supersonic Strategic bomber
First flight : 23 December 1974
Introduction : 1 October 1986
Status : In service
Primary user : United States Air Force
Number built : B-1A: 4, B-1B: 100
Unit cost : US$283.1 million in 1998 (B-1B)

The B-1 has a blended wing body configuration, with variable-sweep wing, triangular fin control surfaces, and four turbofan engines. Unlike the B-1A, the B-1B made no attempt at Mach 2+ speeds. Its maximum speed is Mach 1.25 (about 950 mph or 1,530 km/h).

The B-1A’s engine was modified slightly to produce the GE F101-102 for the B-1B, with an emphasis on durability, and increased efficiency. Also aiding the B-1’s survivability is its relatively low radar cross-section (RCS). Although not technically a stealth aircraft in a comprehensive sense.
B-1 Lancer Specifications (B-1B)
General characteristics

  • Crew: 4 (aircraft commander, copilot, offensive systems officer and defensive systems officer)
  • Payload: 125,000 lb (56,700 kg) ; internal and external ordnance combined
  • Length: 146 ft (44.5 m)
  • Wingspan:
    • Extended: 137 ft (41.8 m)
    • Swept: 79 ft (24.1 m)
  • Height: 34 ft (10.4 m)
  • Wing area: 1,950 ft² (181.2 m²)
  • Airfoil: NA69-190-2
  • Empty weight: 192,000 lb (87,100 kg)
  • Loaded weight: 326,000 lb (148,000 kg)
  • Max takeoff weight: 477,000 lb (216,400 kg)
  • Powerplant:4 × General Electric F101-GE-102 augmented turbofans
    • Dry thrust: 14,600 lbf (64.9 kN) each
    • Thrust with afterburner: 30,780 lbf (136.92 kN) each
  • Fuel capacity, optional: 10,000 U.S. gal (38,000 L) fuel tank for 1–3 internal weapons bays each

Performance

  • Maximum speed:
    • At altitude: Mach 1.25 (721 knots, 830 mph, 1,340 km/h at 50,000 ft/15,000 m altitude)
    • At low level: Mach 0.92 (700 mph, 1,130 km/h at 200–500 ft/60-150 m altitude)
  • Range: 6,478 nmi (7,456 mi, 11,998 km)
  • Combat radius: 2,993 nmi (3,445 mi, 5,543 km)
  • Service ceiling: 60,000 ft (18,000 m)
  • Wing loading: 167 lb/ft² (816 kg/m²)
  • Thrust/weight: 0.38

Armament

  • Hardpoints: six external hardpoints for 50,000 lb (22,700 kg) of ordnance (use for weapons currently restricted by START I treaty[70]) and three internal bomb bays for 75,000 lb (34,000 kg) of ordnance.
  • Bombs:
    • 84× Mk-82 AIR inflatable retarder general purpose bombs[150]
    • 81× Mk-82 low drag general purpose bombs[151]
    • 84× Mk-62 Quickstrike sea mines[152]
    • 24× Mk-65 naval mines[153]
    • 30× CBU-87/89/CBU-97 Cluster Bomb Units (CBU)[N 2]
    • 30× CBU-103/104/105 Wind Corrected Munitions Dispenser
    • 24× GBU-31 JDAM GPS guided bombs[N 3]
    • 15× GBU-38 JDAM GPS guided bombs (Mk-82 general purpose warhead)[N 4]
    • 24× Mk-84 general purpose bombs
    • 12× AGM-154 Joint Standoff Weapon
    • 96× or 144× GBU-39 Small Diameter Bomb GPS guided bombs[N 5] (not fielded on B-1 yet)
    • 24× AGM-158 JASSM
    • 24× B61 thermonuclear variable-yield gravity bombs[153] (no longer carried)
    • 24x B83 nuclear bomb[153] (no longer carried)

Avionics

  • 1× AN/APQ-164 forward-looking offensive passive phased-array radar
  • 1× AN/ALQ-161 radar warning and defensive jamming equipment
  • 1× AN/ASQ-184 defensive management system
  • 1× Lockheed Martin Sniper XR targeting pod (optional)
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