日批在线视频_内射毛片内射国产夫妻_亚洲三级小视频_在线观看亚洲大片短视频_女性向h片资源在线观看_亚洲最大网

Global General

F-22 Raptor

(US Air Force)
Updated: 2011-02-15 17:30
Large Medium Small

F-22 Raptor
Two US Air Force F-22 Raptor stealth jet fighters fly near Andersen Air Force Base in this handout photo dated August 4, 2010. [Photo/Agencies] 

The sophisticated F-22 aerodesign, advanced flight controls, thrust vectoring, and high thrust-to-weight ratio provide the capability to outmaneuver all current and projected aircraft. The F-22 design has been extensively tested and refined aerodynamically during the development process.

The F-22's characteristics provide a synergistic effect ensuring F-22A lethality against all advanced air threats. The combination of stealth, integrated avionics and supercruise drastically shrinks surface-to-air missile engagement envelopes and minimizes enemy capabilities to track and engage the F-22. The combination of reduced observability and supercruise accentuates the advantage of surprise in a tactical environment.

The F-22 will have better reliability and maintainability than any fighter aircraft in history. Increased F-22 reliability and maintainability pays off in less manpower required to fix the aircraft and the ability to operate more efficiently.

Background

The Advanced Tactical Fighter entered the Demonstration and Validation phase in 1986. The prototype aircraft (YF-22 and YF-23) both completed their first flights in late 1990. Ultimately the YF-22 was selected as best of the two and the engineering and manufacturing development effort began in 1991 with development contracts to Lockheed/Boeing (airframe) and Pratt & Whitney (engines). EMD included extensive subsystem and system testing as well as flight testing with nine aircraft at Edwards Air Force Base, Calif. The first EMD flight was in 1997 and at the completion of its flight test life this aircraft was used for live-fire testing.

The program received approval to enter low rate initial production in 2001. Initial operational and test evaluation by the Air Force Operational Test and Evaluation Center was successfully completed in 2004. Based on maturity of design and other factors the program received approval for full rate production in 2005. Air Education and Training Command, Air Combat Command and Pacific Air Forces are the primary Air Force organizations flying the F-22. The aircraft designation was the F/A-22 for a short time before being renamed F-22A in December 2005.

General Characteristics

Primary Function: Air dominance, multi-role fighter

Contractor: Lockheed-Martin, Boeing

Power Plant: Two Pratt & Whitney F119-PW-100 turbofan engines with afterburners and two-dimensional thrust vectoring nozzles.

Thrust: 35,000-pound class (each engine)

Wingspan: 44 feet, 6 inches (13.6 meters)

Length: 62 feet, 1 inch (18.9 meters)

Height: 16 feet, 8 inches (5.1 meters)

Weight: 43,340 pounds (19,700 kilograms)

Maximum Takeoff Weight: 83,500 pounds (38,000 kilograms)

Fuel Capacity: Internal: 18,000 pounds (8,200 kilograms); with 2 external wing fuel tanks: 26,000 pounds (11,900 kilograms)

Payload: Same as armament air-to-air or air-to-ground loadouts; with or without 2 external wing fuel tanks.

Speed: Mach 2 class with supercruise capability

Range: More than 1,850 miles ferry range with 2 external wing fuel tanks (1,600 nautical miles)

Ceiling: Above 50,000 feet (15 kilometers)

Armament: One M61A2 20-millimeter cannon with 480 rounds, internal side weapon bays carriage of two AIM-9 infrared (heat seeking) air-to-air missiles and internal main weapon bays carriage of six AIM-120 radar-guided air-to-air missiles (air-to-air loadout) or two 1,000-pound GBU-32 JDAMs and two AIM-120 radar-guided air-to-air missiles (air-to-ground loadout)

Crew: One

Unit Cost: $143 million

Initial operating capability: December 2005

Inventory: Total force, 137

分享按鈕
主站蜘蛛池模板: 亚洲一区免费视频 | 四虎国产视频 | 在线观看免费黄色 | 亚洲精选一区二区三区 | 日韩日日夜夜 | 成人va视频| 精品国产91 | 日本va欧美va欧美va精品 | 亚洲狠狠 | 日韩高清在线一区 | 69色综合 | 亚色中文| 日韩av有码 | 久久国产精品偷 | 欧美一区二区三区激情视频 | 午夜久久视频 | 成人一区二区三区视频 | 婷婷狠狠干| 在线观看日韩精品 | 久久国产精品视频 | 日韩在线你懂的 | 久久99久久精品 | 日韩一级一区 | 日韩操穴 | 久久久伊人网 | 久久99久久99精品免观看粉嫩 | 中文字幕在线观看视频免费 | 性做爰过程免费看 | 免费黄色视屏 | 精品亚洲成人 | 香蕉av网站 | 亚洲午夜网站 | 亚洲精品欧美精品 | 国产日韩精品视频 | 天天爽av | 日韩在线免费av | 啊v视频在线观看 | 777精品视频 | 香蕉伊人网 | 日韩天堂网 | 国产精品视频一区二区三区不卡 |