Jiao -8 can carry a 23mm gun cabin. There are four hanging points on the wing, which can hang gun pods, rocket pods, bombs, missiles and auxiliary fuel tanks, and each hanging point can hang up to 250 kilograms.
K8 is also one of the only export models in China, and has been successfully exported to Pakistan, Zambia, Myanmar and other countries.
Development history
In order to equip the People's Liberation Army with advanced jet primary trainer, Hongdu Group Company set up a trainer scheme group at 1982. Through research and comparison, combined with the specific situation of China, Hongdu Group put forward the development idea of "improving training efficiency and reducing training cost", the basic performance requirements and two sets of training systems to meet the needs of different countries, which were widely recognized.
1986, China decided to cooperate with Pakistan to develop JIAO -8. Pakistan invested 25% to produce the front fuselage and other parts. 1July, 987, the detailed design of Jiao 8 began. Prototype manufacturing began in June 1989, and five prototypes were manufactured (three for flight test and two for static test). Prototypes 00 1 and 003 were manufactured on June 1990,165438+1October 26th and 9 1 respectively. Subsequently, the 15 pre-production aircraft was launched and made its first flight in July 1992. Therefore, in fact, it teaches -8 points for domestic and export models.
Subsequently, Hongdu proposed "taking into account both high speed and low speed; Good maneuverability and stall characteristics; Good vision and comfortable cockpit environment "and other specific programs, and determined to integrate the world's modern science and technology as the basis for the development of K-8, rather than blindly emphasizing self-reliance. Therefore, when the J-8 was born, it had already borrowed a lot from foreign advanced experience and mature technology.
At the same time, at the beginning of the development of the J -8, it must be considered to be delivered to the Pakistan Air Force. So the configuration plan is Martin? Mature products in the international aviation market, such as Baker's seat, western electronic flight instrument system, instrument landing system, TACAN navigation system, radio station, etc., have cooperated with American Aerospace Equipment Company to install efficient environmental control systems, and cooperated with American Garrett Company to design intake and exhaust systems. The fatigue life of Jiao -8 is 8000 flight hours.
1In September 1994, the Pakistan Air Force accepted six pre-production aircraft, and by the end of 1996, a total of 2 1 aircraft had been produced. Pakistan's Jiao -8 can mount the French "magic" short-range air-to-air missile equipped by the Pakistan Air Force.
Jiaoba also completed the tests of engine distortion, rotation balance, environmental control system, ejection lifesaving and electronic flight instrument system crosslinking abroad. The above measures made the development of the J-8 fast and smooth, solved the serious shortage of military research funds in the 1980s, and improved the starting point of the aircraft. At the same time, foreign technology was introduced into China aviation industry, which initiated China to take the road of international cooperation to develop advanced aircraft.
The vertical tail of K-8 is made of a large number of composite materials. In the process of development and promotion, pilots from more than 20 countries, including Britain, the United States and Russia, flew over the K-8, believing that the K-8 is at a good level among similar international trainers, with good maneuverability and excellent lateral handling quality. In the process of development, various difficulties such as the lack of equipment and instrument data imported from the United States have been overcome.
Jiao -8 has been successfully exported to Pakistan, Myanmar, Zambia, Namibia and other countries, earning a lot of foreign exchange for the country. It is one of the few export models in China that can make money. The English number K -8, which turns 8, stands for Karakorum, the Karakorum Mountain on the border between China and Pakistan, instead of the J prefix of the bus.
199865438+February, Jiaoba modified the domestic engine turbofan-1 1, and the first flight was successful. The model test pilot of Jiao -8 and turbofan-1 1 is Shi Tongzhou. In these two type tests, Shi Tongzhou experienced the danger of engine flameout and forced landing. The type test of this engine was completed in June 2000. The export-oriented Jiaoba is slightly different from the domestic Jiaoba, which is embodied in the selection of electronic equipment, cockpit instruments and engines. Pakistan's K-8 used Martin? Baker's ejection seat.
1999, K-8 competed with Italian and Czech trainers for flight evaluation in Egypt. Italy sent S-2 1 1A, and the Czech Republic sent L- 139 trainers, all of which are top trainers in the world.
In the end, the Italians were left to compete with China. S-2 1 1A has advanced manufacturing technology, and 60% of the whole aircraft is made of composite materials, which is very light, but the performance of the aircraft is not as good as that of K-8. Its cruising speed is only 760 km/h, and the sea level climb rate is16 m/s. Egypt requires 100% microcomputer design for tooling technology and microcomputer management for whole machine manufacturing.
As Hongdu has been studying in the field of production management integration for several years, this technology can be exported to Egypt. China clearly stipulated in the contract to provide K-8E after-sales service to the Egyptian Air Force, but Italy did not make this commitment. Italy's biggest weakness is that the production line is not in China, so it can't deliver the goods on time according to the contract requirements.
199965438+On February 27th, China and Egypt signed relevant contracts. The contract came into effect in July 2000. This is the first time that China has exported the whole aircraft production line and design technology to foreign countries, which has created a new chapter in history. This is also the largest export project of China aviation industry.