Just as Lin Guanghua said, this time the Pakistani side is indeed full of sincerity.

It can be seen from the lineup of the delegation to China that Air Force Lieutenant General Rahman, deputy chief of the general staff of the Pakistani armed forces, personally led the team, which included the principal responsible persons of various departments of the Pakistani General Staff, the heads of technical departments, the leaders of various departments of the Pakistani Air Force, and several senior experts in the field of domestic aviation in Pakistan.

There are more than 40 people in total.

In addition to the large number of people, Rahman and his entourage also have a lot of tickets in their hands, and the authorized quota given by the Pakistani government has reached 400 million US dollars, and if necessary, they can also make an emergency application to the country, and the quota will be further increased to 1 billion US dollars.

The specifications are high, the level is large, and there are many tickets.

These nine words are apt to sum up the Pakistani military delegation.

Because of this, the domestic reception level is also very high, after all, it is with full sincerity, the so-called customer is God, God comes to chop hands, although it can not be shouted a sentence of pro ~~, family ~ ~ or old iron ~~ or something, but similar sincerity still has to be taken out, indicating that your hand is worth chopping.

From this aspect, Lin Guanghua's words really have nothing to say, but on this basis, it is not necessarily true to say that Lin Guanghua's words are all correct, Rahman and his entourage are full of sincerity and came to chop their hands, but they did not come to Tengfei Group to chop their hands.

Rather, it came to two cooperation projects with China in the late eighties.

One is the mid-level training aircraft project in 1986 in cooperation with Hongtong Aircraft Factory.

The other was a light fighter project in the late eighties in cooperation with Successful Airlines.

Originally, these two foreign military cooperation projects were not at all compatible with Tengfei Group, an aviation manufacturing enterprise that was not even a reserve.

Therefore, even if there are successful airlines that are closely related to Tengfei Group and developed from Chenggong Factory to participate, they have nothing to do with Tengfei Group in general.

After all, after years of development, Tengfei Group and Chenggong Airlines have become more and more different in their corporate paths.

Tengfei Group takes the dual-use road of a large platform.

Because of the military genes of the beginning, and the participation in a number of modifications of the J-7 and the No. 10 project, Chenggong Aviation is increasingly rushing towards the road of a professional military equipment manufacturer.

In this way, instead of fierce competition, the two large factories that are not far from each other are complementary.

Ascendas Group's super manufacturing capabilities and professional aviation production equipment enable Berjaya Aviation to obtain world-class aviation production and processing technology in the first time.

The technology and accumulation of successful aviation in fighter aircraft can also make up for the lack of experience caused by the lack of experience caused by the background problems of the Ascendas Group.

All in all, the relationship between the Cheng Teng series has deepened over the years, and if the two are regarded as a whole, its products include almost all the industrial chain from the third generation fighter, the second generation light fighter, to the small general aircraft, light transport aircraft, and even medium transport aircraft.

Not only that, in the fields of aerospace, missiles, unmanned aerial vehicles, etc., the two are also involved in a lot, and it has become a comprehensive aerospace production base with the highest activity, the largest output value, the most abundant product categories and the highest innovation added value in China.

However, as the so-called brothers settle accounts, Cheng Teng's system is harmonious, and the two sides of their core businesses are still distinct.

However, all this suddenly changed after the head of the headquarters inspected the turbofan engine production line of Tengfei Aviation Power, a subsidiary of Ascendas Group.

This is mainly due to the fact that the power system of the intermediate training aircraft undertaken by the Hongtong Aircraft Factory has not been able to obtain the original US supply for some reasons, so that the trial production has been seriously delayed.

In addition to looking at the production of the power system of the target aircraft of the Target 5 cruise missile, the head of the headquarters inspected the Tengfei Aviation Power Plant to find out whether the Tengfei Group has any way to solve the power problem of the intermediate training aircraft.

An aero engine manufacturer that can provide 3.8 tons of thrust turbofan engines for the Y-15PLUS is not difficult to come up with a 2-ton turbofan power at all.

What's more, Tengfei Aviation Power is the core aircraft derivative route, so many years, the improvement of the HX-4-1 core aircraft has not been interrupted, with the continuous application of new materials and new processes, the HX-4-1 core machine is becoming more and more mature, and the latest improved operating power has been close to 3 megawatts.

Based on the mature and reliable core aircraft, Tengfei Aviation Power cannot be said to be free in terms of aero engines, but the grasp of the model can be fully integrated.

If not, it would not be possible to come up with a WD-48SM turbofan engine with 3.8 tons of thrust at once.

It is important to know that the WD-48SM turbofan engine is a typical turbofan engine with a large bypass ratio, which is mainly used in military transport aircraft and regional airliners.

The thrust of the small-bypass ratio version is 2.4 tons, compared to 1.8 tons for the entry-level version of the pre-test model.

The three engines are the second generation of the HX-4-1 core engine, and there is nothing to say about the performance, depending on which one the customer needs, it can be directly produced according to the thrust requirements.

Of course, the chief engineer of the intermediate training aircraft of Hongtong Aircraft Factory wants a small bypass ratio version with a thrust of 2.4 tons, so that the flight performance, air retention time, and operation quality of the intermediate training aircraft will have a qualitative flight.

But the problem is that the size of the intermediate training aircraft is too small, and the size of the small duct with 2.4 tons of thrust is a little too large compared to the version, no way, when the Tengfei Group developed this power, it never thought about installing a combat aircraft, everything is in accordance with the standards of the light transport platform, so it is made thicker, and the intermediate training aircraft must be pushed to the ground again if it wants to be installed, and the price is too great.

In desperation, I could only choose the 1.8-ton entry-level version, the WD-42S turbofan engine, which was roughly the same as the American-made TFE-731 turbofan engine selected before the intermediate training aircraft.

Length 1556mm

Width 852mm

Total weight 406 kg

Bypass ratio 2.9

Thrust-to-weight ratio of 4.98

The turbine inlet temperature is 1020 degrees Celsius

Maximum take-off thrust 1886 kg

Cruising thrust 452 kg

The overhaul and refurbishment time is 1,800 hours, and the total life is 7,600 hours.

In terms of performance, although it cannot catch up with the latest model of the American-made TFE-731 series turbofan engine, it is not inferior compared with its previous models, but also slightly surpasses it in some indicators.

For example, the American-made TFE-731-2A engine that the intermediate training aircraft was prepared to use before, in the case of basically the same size, the turbine inlet temperature is 956 degrees Celsius, which leads to its maximum thrust of only 1601 kg.

Because of this, although the chief engineer of the intermediate training aircraft did not use the 2.4 tons of thrust of the small duct than the version has a little resentment, but the WD-42S turbofan engine as a whole is still very satisfied, in any case, the thrust increases, the weight does not increase much, once the intermediate training aircraft is adopted, not to mention the qualitative leap in performance, the improvement of flight quality is a certainty.

With the Hongtong Aircraft Factory's intermediate trainer in front of the gem, Chenggong Aviation's light fighter project began to itch.

The intermediate training aircraft is a last resort in terms of power, and the light fighter project has not landed in power at all, so I heard that Tengfei Group began to develop the next generation of 6 megawatt core aircraft, and is ready to launch a 6-ton medium turbofan power, just like an old virgin who has been holding back for decades, and finally met the goddess he has loved for a long time, and he screamed and pounced!

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