| [ military ] in KIDS 글 쓴 이(By): terraic () 날 짜 (Date): 1999년 3월 29일 월요일 오전 10시 03분 58초 제 목(Title): B-2기 미 공군 자료 Mission The B-2 Spirit is a multi-role bomber capable of delivering both conventional and nuclear munitions. A dramatic leap forward in technology, the bomber represents a major milestone in the U.S. bomber modernization program. The B-2 brings massive firepower to bear, in a short time, anywhere on the globe through previously impenetrable defenses. Features Along with the B-52 and B-1B, 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. Its capability to penetrate air defenses and threaten effective retaliation provide 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, visual and radar signatures. These signatures make it difficult for the 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. Background The first B-2 was publicly displayed on Nov. 22, 1988, when it was rolled out of its hangar at Air Force Plant 42, Palmdale, Calif. Its first flight was July 17, 1989. The B-2 Combined Test Force, Air Force Flight Test Center, Edwards Air Force Base, Calif., is responsible for flight testing the engineering, manufacturing and development aircraft as they are produced. Three of the six developmental aircraft delivered at Edwards are continuing flight testing. Whiteman AFB, Mo., is the B-2's only operational base. 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 AFB, Okla. The prime contractor, responsible for overall system design and integration, is Northrop Grumman's Military Aircraft Systems Division. Boeing Military Airplanes Co., Hughes Radar Systems Group and General Electric Aircraft Engine Group are key members of the aircraft contractor team. Another major contractor, responsible for aircrew training devices (weapon system trainer and mission trainer) is Hughes Training Inc. (HTI) - Link Division, formerly known as CAE - Link Flight Simulation Corp. Northrop Grumman and its major subcontractor HTI, are responsible for developing and integrating all aircrew and maintenance training programs. General Characteristics Primary function: Multi-role heavy bomber. Prime Contractor: Northrop Grumman Corp. Contractor Team: Boeing Military Airplanes Co., General Electric Aircraft Engine Group and Hughes Training Inc., Link Division Power Plant: Four General Electric F-118-GE-100 engines Thrust: 17,300 pounds each engine Length: 69 feet (20.9 meters) Height: 17 feet (5.1 meters) Wingspan: 172 feet (52.12 meters) Speed: High subsonic Ceiling: 50,000 feet (15,152 meters) Takeoff Weight (Typical): 336,500 pounds (152,635 kilograms) Range: Intercontinental, unrefueled Armament: Conventional or nuclear weapons Payload: 40,000 pounds (18,144 kilograms) Crew: Two pilots Unit cost: Approximately $1.3 billion Date Deployed: December 1993 Inventory: Active force: 21 (planned operational aircraft); ANG: 0; Reserve: 0 POINT OF CONTACT Air Combat Command, Office of Public Affairs; 115 Thompson Street, Suite 211; Langley AFB, VA 23665-1987; DSN 574-5014 or (757) 764-5014. (Current as of March 1999) http://www.af.mil/news/factsheets/B_2_Spirit.html ------------------------ 글쓴이 ------------------------------ 金鍾淵 email : terraic@chollian.net 011-391-8274 / 015-112-5604 ______________________________________________________________ |