Mission
The B-1B is a long-range strategic bomber, capable of flying intercontinental
missions
without refueling, then penetrating present and future sophisticated enemy
defenses. It
can perform a variety of missions, including that of a conventional weapons
carrier for
theater operations.
Features
The B-1B's electronic jamming equipment, infrared countermeasures, radar
location and
warning systems complement its low-radar cross-section and form an integrated
defense
system for the aircraft.
The swing-wing design and turbofan engines not only provide greater range and
high speed
at low levels but they also enhance the bomber's survivability. Wing sweep at
the
full-forward position allows a short takeoff roll and a fast base-escape
profile for
airfields under attack. Once airborne, the wings are positioned for maximum
cruise
distance or high-speed penetration.
The B-1B uses radar and inertial navigation equipment enabling aircrews to
globally
navigate, update mission profiles and target coordinates in-flight, and
precision bomb
without the need for ground-based navigation aids. Included in the B-1B
offensive
avionics are modular electronics that allow maintenance personnel to
precisely identify
technical difficulties and replace avionics components in a fast, efficient
manner on the
ground.
The aircraft's AN/ALQ 161A defensive avionics is a comprehensive electronic
counter-measures package that detects and counters enemy radar threats. It
also has the
capability to detect and counter missiles attacking from the rear. It defends
the
aircraft by applying the appropriate counter-measures, such as electronic
jamming or
dispensing expendable chaff and flares. Similar to the offensive avionics,
the defensive
suite has a re-programmable design that allows in-flight changes to be made
to counter
new or changing threats.
Numerous sustainment and upgrade modifications are ongoing or under study for
the B-1B
aircraft. Large portions of these modifications that are designed to increase
the combat
capability are known as the conventional mission upgrade program. This
three-phase
program will increase the lethality, survivability and supportability of the
B-1B fleet.
Phase I of the program added the capability to release cluster bomb unit
weapons. Phases
II and III will further upgrade the B-1B capability, to include the ability
to deliver
joint direct attack munitions and standoff weapons, and greatly improve its
electronic
counter-measures capability.
Background
The first B-1B was delivered to the Air Force at Dyess Air Force Base, Texas,
in June
1985, with initial operational capability on Oct. 1, 1986. The final B-1B was
delivered
May 2, 1988.
The B-1B holds several world records for speed, payload and distance. The
National
Aeronautic Association recognized the B-1B for completing one of the 10 most
memorable
record flights for 1994.
General Characteristics
Primary Function: Long-range, multi-role, heavy bomber
Builder: Rockwell International, North American Aircraft
Operations Air Frame and Integration: Offensive avionics, Boeing Military
Airplane;
defensive avionics, AIL Division
Power plant: Four General Electric F-101-GE-102 turbofan engine with
afterburner
Thrust: 30,000-plus pounds with afterburner, per engine
Length: 146 feet (44.5 meters)
Wingspan: 137 feet (41.8 meters) extended forward, 79 feet (24.1 meters)
swept aft
Height: 34 feet (10.4 meters)
Weight: Empty, approximately 190,000 pounds (86,183 kilograms)
Maximum Takeoff Weight: 477,000 pounds ((216,634 kilograms)
Speed: 900-plus mph (Mach 1.2 at sea level)
Range: Intercontinental, unrefueled
Ceiling: More than 30,000 feet (9,144 meters)
Crew: Four (aircraft commander, pilot, offensive systems officer and
defensive systems
officer)
Armament: Up to 84 Mark 82 conventional 500-pound bombs and 30 CBU-87/89/97.
Also can
be reconfigured to carry a wide range of nuclear weapons
Date Deployed: June 1985
Unit Cost: $200-plus million per aircraft
Inventory: Active force, 51 primary mission aircraft inventory (PMAI), 72
(actual), 2
(test); ANG, 18 PAA (20 actual); Reserve , 0
Point of Contact
Air Combat Command, Public Affairs Office; 115 Thompson St., Suite 211;
Langley AFB, Va.
23665-1987; DSN 574-5014 or (757) 764-5014.
February 1998
http://www.af.mil/news/factsheets/B_1B_Lancer.html
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金鍾淵 email : terraic@chollian.net
011-391-8274 / 015-112-5604
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