外国网站的J-8资料。

lkyfly0027

外国网站的J-8资料。

The J-8 (Jianji-8, or Jian-8; export designation: F-8; NATO codename: Finback-A) is a single-seat, twin-engine supersonic interceptor fighter aircraft with secondary capability for ground attack. The aircraft was designed by Shenyang-based 601 Aircraft Design Institute and built by Shenyang Aircraft Corporation (SAC). An enlarged version of the Shenyang/ChengduJ-7 (MiG-21 copy) with two Liyang WP-7 turbojet engines, the J-8 was China’s first attempt to develop a fighter aircraft independently. The fighter only saw limited service with the PLA, but it later evolved into theJ-8II, which became one of the major fighter aircraft in the PLA service.
As China’s existing J-7 (MiG-21F Fishbed) fighter could not effectively intercept the high-speed, high-altitude bombers and spy planes introduced by the U.S. and Soviet Union in the 1960s, the PLA a new fighter aircraft with superior performance. The targets set by the PLA included a maximum speed of Mach 2.2, a service ceiling of over 20,000m, a sea-level climb rate of 200m/s, and a combat radius of 750~1,000km. The new fighter was also required to be equipped with new fire-control radar and medium-range air-to-air missile (MRAAM).
In May 1964, 6th Research Academy of the Chinese Ministry of Defence began the theoretical evaluation of the new-generation Mach 2 fighter aircraft. The programme definition submitted in October 1964 described a high-performance fighter capable of intercepting the U.S. B-58 Hustler bomber and F-105 Thunderchief fighter-bomber. Shenyang Aircraft Design Institute proposed an enlarged twin-engine turbojet-powered version of the J-7 fighter known as J-8, while Chengdu Aircraft Design Institute proposed a single-engine, turbofan-powered, canard-delta J-9. The J-8 received full support from the PLA and was given go ahead in 1965. The J-9 was given up due to unachievable turbofan engine but its concept was later used in the development of theJ-10 fighter.
The J-8 entered the engineering development in September 1965, with a mock-up produced for inspection in December. Shenyang Aircraft Facotry (now SAC) began the prototype production in 1966. The first two J-8 prototypes rolled out in July 1968, and the first flight of the aircraft took place on 5 July 1969. However, the J-8 development was seriously interrupted by the ‘Culture Revolution’ in the late 1960s and early 1970s. The test flights of the aircraft was not completed in December 1979, ten years after the aircraft first flew. The J-8 was finally certified for design finalisation in December 1979, and entered the PLAAF service in 1981.
The J-8 fighter has mid-mounted large delta-shape wings and a round nose air inlet with a fully adjustable centre-body, which accommodates the ranging radar. There are two auxiliary air inlets located in front of the wing-root to for low-speed, large angle of attack flying. Two air brakes are located on the belly right behind the cannon. Two belly fins are located under the rear section near the dual exhausts. The basic variant J-8 has a front-hinged one-piece canopy with a round front windscreen, while this was replace by to a back-hinged canopy and a three-piece front windscreen design on later variants. Two 30mm internal cannons are fitted in the lower fuselage. The four under-wing stations can carry up to 2,500kg of disposable stores (each unit rated at 500kg). The aircraft is powered by two Liyang Wopen-7B turbojets, each rated at 43.15kN dry and 58kN with afterburning.
Although the J-8 more or less achieved the original design targets for performance, China’s inability to produce capable avionics and armaments give the aircraft no distinctive advantage over the earlier J-7. Because of the slow progress in developing the fire-control radar and power unit, the basic variant J-8 only had a primitive ranging radar for day light, within visual range operations. The PLA originally planned to equip the J-8 fighter with a powerful 30mm Type 30-II four-barrel Gatling gun with a rate of fire of 1,600 rounds/min. However, the development of the gun was trouble-prone and the aircraft was fitted with two 30mm Type 30-1 cannons instead. Additionally, the PL-4 medium-range air-to-air missile (AAM) scheduled to be carried by the J-8 was also unsuccessful, leaving the fighter relying completely on the PL-2 IR-homing short-range AAM for air combat.
Only 30~50 examples of the basic variant J-8 were produced. Most of these aircraft were retired from active service in the 1990s. The remaining units were converted for photographic reconnaissance role.
J-8I (J-8A)
Shenyang Aircraft Factory began to develop an all-weather variant of the J-8 known as J-8I (also referred to as J-8A) in 1976. The design work was completed in February 1978, with the first prototype rolling out in May 1980. However, the aircraft was destroyed in a fire accident in June. Shenyang had to make a new prototype, which delayed the development programme for a year. The second prototype made its first flight on 24 April 1982, followed by the flight of the third prototype in October. The aircraft certified for designation finalisation in July 1985 after completing its test flights.
The J-8I is generally identical to the basic variant J-8 in aerodynamic design and powerplant, but the aircraft has 11 improvements in avionics systems, including the Type 204 (JL-7) mono-pulse fire-control radar, SM-8A aeronautical optical gun-sight, onboard computer, new cockpit panel, and redesign ejection escape system and oxygen supply system. The J-8I can be distinguished from the basic variant J-8 by its three-piece front windscreen and rear-hinged canopy. The original two Type 30-I 30mm cannons were replaced by two Type 23-III 23mm cannons. The four under-wing stores stations are capable of carrying the PL-2B or PL-5 short-range AAM.
Only a small number of the J-8I was produced before the production finally stopped in 1987. The fighter has been deployed by both PLA Air Force and PLA Naval Air Force for interception role. In the late 1990s, some J-8I fighters were upgraded to the J-8E standard.

lkyfly0027

J-8(歼-8或歼击-8,出口型称F-8,北约代号为长须鲸-A)是一种单座,双发超音速截击战斗机,也具有对地攻击能力。该机由沈阳601飞机研究所设计，由沈阳飞机公司建造。是经由沈阳\成都J-7（米格－21仿造型）增大后的机型，装有两台溧阳WP-7喷气发动机。J-8是中国自主设计的第一种战机。该机仅在解放军中限量装备，后来发展为J-8II，成为解放军的主力战斗机之一。由于中国已有的新型J-7（米格－21F）虽然表现优异，但不能有效拦截高空，高速轰炸机及60年代美苏发展的间谍飞机，解放军对新机型的要求包括：最大速度2.2马赫，升限2万米，海平面爬升率200米/秒，作战半径750－1000公里，并要求能装备新型火控雷达及中程空空导弹。 1964年5月，中国国防部第六研究院开始对此2马赫的新机型进行理论研究。1964年10月的研究报告描述了一种高性能战机，能够拦截美国的B-58轰炸机及F-105雷公式战斗轰炸机。沈阳飞机研究所提出了J-7增大后的双发喷气型，即J-8。成都飞机研究所的方案是单发涡扇驱动，三角翼布局，即传闻中的J-9。J-8方案得到了解放军的全力支持，从1965年开始实施。J-9方案则遭遇了涡扇技术上的障碍，但其概念后来被用于J-10的设计。 J-8于1965年9月开始进入工程设计阶段，12月制造出验证模型。沈阳飞机工厂于1966年开始制造原型机，前两架原型机于1968年7月出厂，次年5月首飞。但J-8的发展在60年代末和70年代初受到了文化大革命的重大阻碍，1979年12月的试飞未能完成。首飞十年后，J-8于1979年12月终于进入验证阶段，1981年进入解放军空军服役。 J-8采用大型三角状中单翼，机鼻进气，中段空间较大，用来安装测距雷达。翼根前端有辅助进气机制，用来进行低速，大攻角飞行。两片空刹安装于机腹机炮后方，两片腹鳍位于后端尾喷管附近。J-8基础型采用前端铰链式舱盖及圆形挡风玻璃，后来改为后端铰链式舱盖及三段式挡风玻璃。机身底部装有两门30毫米内置机炮。4个翼下挂点可挂2500千克可抛弃负载（每个500千克）。动力为两台溧阳涡喷－7B喷气发动机，每台推力43.15千牛，加力推力58千牛。尽管J-8大致达到了初设目标，中国无力制造有效的航电系统及防护机制使得该机相比早期的J-7并无特别优势。由于对火控雷达和推进系统的研究进展缓慢，基础型J-8仅配备原始的昼间雷达，能进行视距内操作。解放军原打算为J-8配备威力强劲的30－II型30毫米四管加特林机炮，射击速率1600转/分。但该机炮的发展困难重重，最后飞机装备了两门30－I型30毫米加农炮用以替代。另外，原用于配备J-8的霹雳－4型中程空空导弹也未能成功，使得J-8只能完全依靠霹雳－2型红外短程空空导弹来进行空战。 J-8基础型只生产了30－50架，该型机大部分于上世纪90年代退役，剩下的转而用于空中照相侦查。 J-8I(J-8A) 沈阳飞机工厂于1976年开始发展J-8的全天候型，即J-8I（也称为J-8A）。设计工作于1978年2月完成，首架原型机于1980年5月出厂，但飞机在6月的一场火灾中被毁，沈阳只得重新制造新的原型机，使得研究工作拖延了一年。第二架原型机于1982年4月24日首飞，第三架原型机紧接于10月首飞。1985年7月试飞完成，进入设计验证阶段。 J-8I的气动外型和动力设施与J-8大体相同，但航电系统有11处提升，包括204型单脉冲火控雷达（JL-7),SM-8A航空光学瞄准具，机载计算机，新的座舱面板，以及重新设计的弹射逃生系统，供氧系统。J-8I能从三段式挡风玻璃与后端铰链式座舱盖与J-8相区别，原先的两门30-I型39毫米机炮被两门23－III型23毫米机炮取代。4个翼下挂点可挂霹雳－2B或霹雳－5型短程空空导弹。 J-8I只生产了一小部分，生产工作于1987年终止。该机被解放军空军和海军航空兵用作截击机。上世纪90年代后期，一些J-8I战机按照J-8E标准进行了升级。

lkyfly0026

LZ 好强大啊！！翻译过来了！！！[44] [44]

lkyfly0027

哎！[40] 别损我了。[44]

lkyfly0194

呵呵 踩踩  不过 歼8真的 不怎么样呀

马达

看看，不错

lkyfly0027

各位   咱别给自己的东西不抱希望呀   好歹也是自己的东西呀

605691834

我很喜欢歼八，机型很漂亮而且性能也不弱至少国土防御够用了。[44]

lkyfly0280

谢谢你的工作让我们看到这么详细的资料

lkyfly0361

刚了解J-8 感觉还不错