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【空軍戰機】『每日軍事武器鑑賞』－ F-22猛禽戰鬥機

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F-22 Raptor

The F-22 program is developing the next-generation air superiority fighter for the Air Force to counter emerging worldwide threats. It is designed to penetrate enemy airspace and achieve a first-look, first-kill capability against multiple targets. The F-22 is characterized by a low-observable, highly maneuverable airframe; advanced integrated avionics; and aerodynamic performance allowing supersonic cruise without afterburner.

Stealth: Greatly increases survivability and lethality by denying the enemy critical information required to successfully attack the F-22

Integrated Avionics: Allows F-22 pilots unprecedented awareness of enemy forces through the fusion of on- and off-board information

Supercruise: Enhances weapons effectiveness; allows rapid transit through the battlespace; reduces the enemy’s time to counter attack

The F-22's engine is expected to be the first to provide the ability to fly faster than the speed of sound for an extended period of time without the high fuel consumption characteristic of aircraft that use afterburners to achieve supersonic speeds. It is expected to provide high performance and high fuel efficiency at slower speeds as well.
For its primary air-to-air role, the F-22 will carry six AIM-120C and two AIM-9 missiles. For its air-to-ground role, the F-22 can internally carry two 1,000 pound-class Joint Direct Attack Munitions (JDAM), two AIM-120C, and two AIM-9 missiles. With the Global Positioning System-guided JDAM, the F-22 will have an adverse weather capability to supplement the F-117 (and later the Joint Strike Fighter) for air-to-ground missions after achieving air dominance.

The F-22's combat configuration is "clean", that is, with all armament carried internally and with no external stores. This is an important factor in the F-22's stealth characteristics, and it improves the fighter's aerodynamics by dramatically reducing drag, which, in turn, improves the F-22's range. The F-22 has four under wing hardpoints, each capable of carrying 5,000 pounds. A single pylon design, which features forward and aft sway braces, an aft pivot, electrical connections, and fuel and air connections, is used. Either a 600-gallon fuel tank or two LAU-128/A missile launchers can be attached to the bottom of the pylon, depending on the mission. There are two basic external configurations for the F-22:

Four 600 gallon fuel tanks, no external weapons: This configuration is used when the aircraft is being ferried and extra range is needed. A BRU-47/A rack is used on each pylon to hold the external tanks.

Two 600 gallon fuel tanks, four missiles: This configuration is used after air dominance in a battle area has been secured, and extra loiter time and firepower is required for Combat Air Patrol (CAP). The external fuel tanks, held by a BRU-47/A rack are carried on the inboard stations, while a pylon fitted with two LAU-128/A rail launchers is fitted to each of the outboard stations.

An all-missile external loadout (two missiles on each of the stations) is possible and would not be difficult technically to integrate, but the Air Force has not stated a requirement for this configuration. Prior to its selection as winner of what was then known as the Advanced Tactical Fighter (ATF) competition, the F-22 team conducted a 54-month demonstration/ validation (dem/val) program. The effort involved the design, construction and flight testing of two YF-22 prototype aircraft. Two prototype engines, the Pratt & Whitney YF119 and General Electric YF120, also were developed and tested during the program. The dem/val program was completed in December 1990. Much of that work was performed at Boeing in Seattle, Lockheed (now known as Lockheed Martin) facilities in Burbank, Calif., and at General Dynamics' Fort Worth, Texas, facilities (now known as Lockheed Martin Tactical Aircraft Systems). The prototypes were assembled in Lockheed's Palmdale, Calif., facility and made their maiden flight from there. Since that time Lockheed's program management and aircraft assembly operations have moved to Marietta, Ga., for the EMD and production phases.

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The F-22 passed milestone II in 1991. At that time, the Air Force planned to acquire 648 F-22 operational aircraft at a cost of $86.6 billion. After the Bottom Up Review, completed by DOD in September 1993, the planned quantity of F-22s was reduced to 442 at an estimated cost of $71.6 billion.

A $9.55 billion contract for Engineering and Manufacturing Development (EMD) of the F-22 was awarded to the industry team of Boeing and Lockheed Martin in August 1991. Contract changes since then have elevated the contract value to approximately $11 billion. Under terms of the contract, the F-22 team will complete the design of the aircraft, produce production tooling for the program, and build and test nine flightworthy and two ground-test aircraft.

A Joint Estimate Team was chartered in June 1996 to review the F-22 program cost and schedule. JET concluded that the F-22 engineering and manufacturing development program would require additional time and funding to reduce risk before the F-22 enters production. JET estimated that the development cost would increase by about $1.45 billion. Also, JET concluded that F-22 production cost could grow by about $13 billion (from $48 billion to $61 billion) unless offset by various cost avoidance actions. As a result of the JET review the program was restructured, requiring an additional $2.2 billion be added to the EMD budget and 12 months be added to the schedule to ensure the achievement of a producible, affordable design prior to entering production. The program restructure allowed sourcing within F-22 program funds by deleting the three pre-production aircraft and slowing the production ramp. Potential for cost growth in production was contained within current budget estimate through cost reduction initiatives formalized in a government/industry memorandum of agreement. The Defense Acquisition Board principals reviewed the restructured program strategy and on February 11, 1997 the Defense Acquisition Executive issued an Acquisition Defense Memorandum approving the strategy.

The Quadrennial Defense Review Reportwhich was released in mid-May 1997, reduced the F-22 overall production quantity from 438 to 339, slowed the Low Rate Initial Production ramp from 70 to 58, and reduced the maximum production rate from 48 to 36 aircraft per year.

The F-22 EMD program marked a successful first flight on September 7, 1997. The flight test program, which has already begun in Marietta, Georgia, will continue at Edwards AFB, California through the year 2001. Low rate production is scheduled to begin in FY99. The aircraft production rate will gradually increase to 36 aircraft per year in FY 2004, and will continue that rate until all 339 aircraft have been built (projected to be complete in 2013). Initial Operational Capability of one operational squadron is slated for December 2005.

The F-15 fleet is experiencing problems with avionics parts obsolescence, and the average age of the fleet will be more than 30 years when the last F-22 is delivered in 2013. But the current inventory of F-15s can be economically maintained in a structurally sound condition until 2015 or later. None of the 918 F-15s that were in the inventory in July 1992 will begin to exceed their expected economic service lives until 2014.

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Specifications
Function	Air superiority fighter
Contractors	Lockheed Martin Aeronautical Systems: F-22 program management, the integrated forebody (nose section) and forward fuselage (including the cockpit and inlets), leading edges of the wings, the fins and stabilators, flaps, ailerons, landing gear and final assembly of the aircraft. Lockheed Martin Tactical Aircraft Systems: Center fuselage, stores management, integrated navigation and electronic warfare systems (INEWS), the communications, navigation, and identification (CNI) system, and the weapon support system. Boeing: wings, aft fuselage (including the structures necessary for engine and nozzle installation), radar system development and testing, avionics integration, the training system, and flight-test development and management. Pratt & Whitney: F119-PW-100 engines that power the Raptor.
Major Subcontractors	(partial list): Northrop Grumman, Texas Instruments, Kidde-Graviner Ltd., Allied-Signal Aerospace, Hughes Radar Systems, Harris, Fairchild Defense, GEC Avionics, Lockheed Sanders, Kaiser Electronics, Digital Equipment Corp., Rosemount Aerospace, Curtiss-Wright Flight Systems, Dowty Decoto, EDO Corp., Lear Astronics Corp., Parker-Hannifin Corp., Simmonds Precision, Sterer Engineering, TRW, XAR, Motorola, Hamilton Standard, Sanders/GE Joint Venture, Menasco Aerospace.
Propulsion	two Pratt & Whitney F119-PW-100 engines
Thrust	35,000 lbst
Length	62.08 feet, 18.90 meters
Height	16.67 feet, 5.08 meters
Wingspan	44.5 feet, 13.56 meters
Wing Area	840 square feet
Horizontal Tailspan	29 feet, 8.84 meters
Maximum Takeoff Weight
Ceiling
Speed	Mach 1.8 (supercruise: Mach 1.5)
Crew	one
Armament	Two AIM-9 Sidewinders six AIM-120C Advanced Medium-Range Air-to-Air Missiles (AMRAAM) one 20mm Gatling gun two 1,000-pound Joint Direct Attack Munitions (JDAM)
First flight:	September 7, 1997
Date Deployed	deliveries beginning in 2002 operational by 2004

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發表於 07-2-7 19:17:53 |只看該作者大字中字小字正體化简体化載入全部圖片

Unit Costs

DOD's Projected Unit Prices Before and After Restructuring Production -------------------------- Low-rate Full-rate ------------ ------------ Units Unit Units UnitEstimates cost cost -------------------------- ---- ------ ---- ------ Before restructuring 76 $142.6 362 $102.8Restructured without 70 $200.3 368 $128.2 initiativesRestructured with 70 $200.8 368 $ 92.4 initiatives------------------------------------------------------SOURCE: GAO June 1997

VRML 3-D Model

F-22 Raptor
VRML by Soji Yamakawa

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(文章來自 :21世紀的主戰機種)

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F-22猛禽戰鬥機

維基百科，自由的百科全書

F-22猛禽(F-22 Raptor)，是由美國洛克希德·馬丁公司、波音和通用動力公司公司聯合設計的新一代重型匿蹤戰鬥機。也是專家們所指的目前唯一面世的「第四代戰鬥機」。它將成為21世紀的主戰機種。主要任務為取得和保持戰區制空權，將是F-15的後繼型號。

F/A-22是美國於21世紀初期的主力重型戰鬥機，它是目前最昂貴的戰鬥機。它配備了主動相控陣雷達、AIM-9X近程空對空導彈、AIM-120C中程空對空飛彈、向量推力引擎、先進整合航電與人機介面等。在設計上具備超音速巡航(不需要使用後燃器維持)、超視距作戰、高機動性、對雷達與紅外線匿蹤(隱身)等特性。據估計其作戰能力為現役F-15的2到4倍。將會在較長的一段時間裏成為世界重型戰鬥機的霸主。研發F/A-22的的技術也同時應用到了下一代F-35「閃電II」(Lightning II) 身上。

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克里斯Chris

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基本資料
機員數 1
生產商洛克希德·馬丁、波音和通用動力
造價約2.569億美元/架
機身尺寸
翼展 13.56米
機身 18.92米
高 5.00米
機翼面積 78.80平方米
重量
空重 14,385公斤
最大起飛重 27,216公斤
動力
發動機 2 x 普惠公司F119-PW-100渦輪風扇發動機
推力 2x 155-178千牛頓
最大使用過載 9 G
飛行表現
最高速度保密(估計約在2馬赫)
超音速巡航 1.58 馬赫
海平面最高飛行速度 1480 公里/小時 1.21 馬赫
飛送航程 3200公里
實用升限 18,000公尺
武器系統
雷達 AN/APG-77
機槍 1x M61A1/A2 20mm 火神砲
炸彈 GBU-10, GBU-12, GBU-16, CBU-59, Mk-80s
飛彈對空：AIM-9, AIM-120
對地：AGM-62, AGM-65, JDAM
對艦：AGM-84
反輻射：AGM-88

火箭 NA
其他

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克里斯Chris

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發表於 07-2-7 19:20:39 |只看該作者大字中字小字正體化简体化載入全部圖片

開發歷程

本計劃原稱作先進戰術戰鬥機（Advanced Tactical Fighter，ATF）

1971年美國戰術空軍指揮部提出的下一代戰機的研發計劃。這個計劃帶動諸多1970年代的小型研究計畫，美國空軍原先打算於1977年到1981年之間以兩組原型機進行試飛，可惜因預算不足而取消。當年美國戰機的設計重點是對地攻擊為第一優先，只要求空戰時有足夠自衛的能力。

1979年時，美國空軍將對地攻擊和空戰性能的重要性提升到同一層次。

1982年美國空軍面對蘇聯戰鬥機的快速發展，以及美國空軍準備使用F-15E與F-16擔任對地攻擊的任務、F-117進入試飛階段，對地攻擊的需求已經不是那麼重要。當年10月，最終定案的計畫正式在最後一次公開會議上提出。ATF的技術要求將以下五個特點集在一架飛機上，即低可偵測性（匿蹤）、高度機動性和敏捷性、不需使用後燃器即可作超音速巡航（而不是只滿足於以往使用後燃器短時間超音速衝刺）、有效載重不低於F—15和具有飛越包括第三世界戰區在內的所有戰區的能力。面對如此先進的設計要求，F-22必須採用一切已有的世界級航空頂尖技術。與YF-23的競爭試飛後，YF-22被美國空軍選中繼續研發。

1990年9月F-22的原型機試飛。

1997年9月EMD型飛機首飛。

2002年開始交付生產型飛機。

2004年形成初步作戰能力。F-22在原型機時的編號為「YF-22」，發展型時為「F/A-22」。

2005年在美國空軍正式服役的量產型則為「F-22A」。最初計劃採購750架，經過兩次削減最後確定的採購數量是179架,現已交機50架。

F-22的試驗和改良十分細緻和週到，因為美國空軍認為「F—22並非今日所需，而是為了對付明天的威脅。因此，我們不是為瞭解決今天的問題在研製，而是要回答今天所能預料的明天會出現的所有可能的問題。我們考慮的是美國空軍明天的空中優勢。因此F—22必須組合有最好的匿蹤、超音速巡航。一體化航空電子系統、敏捷性以及作為制空權所需的對空、對地致命的打擊和支援性。」

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發表於 07-2-7 19:20:51 |只看該作者大字中字小字正體化简体化載入全部圖片

技術特點

F-22採用雙垂尾雙發單座佈局。垂尾向外傾斜27度，恰好處於一般匿蹤設計的邊緣。其兩側進氣口裝在翼前緣延伸面(邊條翼)下方，與噴嘴一樣，都作了抑制紅外輻射的匿蹤設計，主翼和水準安定面採用相同的後掠角和後緣前掠角，都是小展弦比的梯形平面形，水泡型座艙蓋凸出於前機身上部，全部武器都隱蔽地掛在4個內部彈艙之中。