Take Off My Aviation Era

As Lin Guanghua said, this time Pakistan is indeed full of sincerity.

From the lineup of their delegation to China this time, it can be seen that the Deputy Chief of the General Staff of the Pakistan Army, Lieutenant General Rahman Air Force personally led the team, including the main heads of the Pakistan General Staff, the head of the technical department, and the Pakistani General Staff. Leaders of various departments of the Air Force, plus several senior experts in Pakistan's domestic aviation field.

There are more than forty people in total.

In addition to the large number of people, Rahman and his party have a lot of tickets. The authorization limit granted by the Pakistani government has reached 400 million U.S. dollars. If necessary, emergency applications can be made in the country, and the limit will be further increased to 1 billion U.S. dollars.

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

It is appropriate to use these nine words to summarize this Pakistani military delegation.

Because of this, the domestic reception level for them is also very high. After all, they came with full sincerity. As the saying goes, customers are gods, and gods come and chop their hands. Although they can't be bright and yelling pro~~, family ~~Or old iron~~ or something, but similar sincerity still needs to be brought out, which means that your hands are very worthwhile.

From this aspect, Lin Guanghua really didn't have to say, but based on this, it can be said that Lin Guanghua's words are all correct but not at all. Rahman and his party came here with full of sincerity to chop their hands, but they did not come to Tengfei Group to chop their hands.

It was directed at two cooperative projects with China in the late 1980s.

One is the intermediate trainer aircraft project that cooperated with Hongtong Aircraft Factory in 1986.

The other is the light fighter project in cooperation with successful airlines in the late 1980s.

Originally, these two were foreign military cooperation projects, and they did not have anything to do with Ascendas Group, an aerospace manufacturing company that can't even count as reserve.

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

After all, after these years of development, Ascendas and Success Aviation have become increasingly different in their corporate paths.

Ascendas Group is taking a dual-purpose path of military and civilian use of large platforms.

Because of its military genes and its participation in the J-7's many modifications and the No. 10 project, Success Aviation is increasingly rushing towards a professional military equipment manufacturer.

As a result, instead of fierce competition between the two big factories not far apart, they are increasingly complementary.

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

The technology and accumulation of successful aviation in fighter jets can also make up for the lack of experience of Ascendas Group due to background problems.

All in all, the relationship between Cheng Teng family has been deepening over the years. If you consider the two as a whole, its products include from third-generation fighters, second-generation light fighters, to small general-purpose aircraft, light transport aircraft, and even medium transport aircraft. Almost the entire industrial chain.

Not only that in the fields of aerospace, missiles, unmanned aerial vehicles and other fields, the two also have a lot of research, and they seem to have become the most active domestically, the largest output value, the most abundant product categories, and the highest innovative value-added comprehensive aerospace production base.

However, as the so-called brothers clearly settle accounts, Cheng Teng is in harmony, and the two sides of their respective core businesses are still very distinct.

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

This is mainly due to the fact that the power system of the intermediate trainer undertaken by the Hongtong Aircraft Factory was unable to obtain the original American source for some reasons, so that the trial production was seriously delayed.

The head of the headquarters inspected the Ascendas Aviation Power Plant. In addition to looking at the production status of the Target 5 cruise missile target aircraft power system, he also understood whether Ascendas Group could solve the power problem of the intermediate trainer aircraft.

An aero engine production plant that can provide 3.8 ton thrust turbofan engines for Yun 15plus, it is not a difficult task to come up with a 2 ton turbofan power.

What's more, Ascendas Aerodynamics has taken the core machine derivative route. After so many years, the improvement of the hx-4-1 core machine has not been interrupted. With the continuous application of new materials and new processes, the hx-4-1 core machine More and more mature, the latest and improved operating power is close to 3 MW.

Based on the mature and reliable core aircraft, Tengfei Aerodynamics cannot say that it can do whatever it wants in terms of aero engines, but it can be fully integrated in the grasp of the aircraft type.

If this is not the case, it is impossible to come up with a wd-48sm turbofan engine with 3.8 tons of thrust at once.

It is necessary 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 passenger aircraft.

The thrust of its small bypass ratio version is 2.4 tons. As for the entry-level version of the preliminary test model, the thrust is only 1.8 tons.

The three engines are the second-generation modification of the hx-4-1 core engine, and there is no need to say in terms of performance. It depends on which one the customer needs, and the one can be produced directly according to the thrust requirements.

The chief engineer of the intermediate trainer at Hongtong Aircraft Manufacturing Plant certainly wanted a 2.4-ton thrust version with a small bypass ratio. In this way, the flight performance, blanking time, and operating quality of the intermediate trainer would be qualitatively improved.

But the problem is that the size of the intermediate trainer is too small, and the 2.4-ton thrust small bypass is a bit larger than the version. There is no way. When Ascendas Group developed this power, it never thought about installing combat aircraft. According to the standard of the light transportation platform, it is made a little thicker. If the intermediate trainer wants to install it, it must be pushed back. The price is too high.

In desperation, I can only choose the 1.8-ton entry-level version, wd-42s turbofan engine, the general index is roughly equivalent to the US-made tfe-731 turbofan engine selected before the intermediate trainer.

Length 1556mm

Width 852mm

Total weight 406 kg

Bypass ratio 2.9

Push-to-weight ratio 4.98

Turbine inlet temperature 1020 degrees Celsius

Maximum take-off thrust 1886 kg

Cruising thrust of 452 kg

The overhaul takes 1,800 hours and the total life span is 7,600 hours.

In terms of performance ~www.readwn.com~ Although it can't keep up with the latest model of the US-made tfe-731 series turbofan engine, it is not inferior to its previous models, and slightly surpasses in some indicators.

For example, the US-made tfe-731-2a engine that the intermediate trainer is going to use before, in the case of basically the same size, the turbine inlet temperature is 956 degrees Celsius, which results in its maximum thrust of only 1601 kg.

Because of this, although the chief engineer of the intermediate trainer did not use the 2.4-ton thrust version with a small bypass ratio, he was a little bit angry, but he was very satisfied with the wd-42s turbofan engine as a whole. In any case, with the increase in thrust, There is not much increase in weight. Once the intermediate trainer adopts a qualitative leap in performance, the improvement in flight quality will be determined.

With the jewel of the intermediate trainer aircraft of the Hongtong Aircraft Manufacturing Plant, the light fighter project of Successful Aviation has begun to itch.

The mid-level trainer is the last resort in terms of power, and the light fighter project has not lost its power at all. So I heard that Ascendas Group has begun to develop the next-generation 6-megawatt core aircraft and is preparing to launch a 6-ton mid-size turbofan power. It's like an old virgin who has been holding back for decades, and finally meets the goddess he has long wanted, and screams and rushes over!