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- As Lin Guanghua said, Pakistan is indeed sincere this time.
It can be seen from the lineup of their delegation to visit China that Air Force Lieutenant General Rahman, Deputy Chief of General Staff of the Pakistani Army, personally led the delegation, which included the main persons in charge of various departments of the Pakistani General Staff, directors of technical departments, and Leaders of various departments of the Air Force, plus several senior experts in the field of domestic aviation in Pakistan.
There are more than forty people in total.
In addition to the large number of people, Rahman and his party also have a lot of money. The authorization limit granted by the Pakistani government has reached 400 million U.S. dollars. If necessary, emergency applications can be made to the country, and the amount will be further increased to 1 billion U.S. dollars.
??High specifications, large levels, and lots of tickets.
"These nine words are appropriate to sum up this Pakistani military delegation.
Because of this, the level of reception for him in China is also very high. After all, he comes with full sincerity. As the saying goes, customers are God, and God comes to chop his hands. Although he cannot say "dear" or "family" openly. ~~Or Lao Tie~~ or something like that, but you still have to show sincerity, saying that whatever you chop with your hands is worth it.
From this point of view, Lin Guanghua¡¯s words are indeed correct, but it is not necessarily true to say that Lin Guanghua¡¯s words are completely correct. Rahman and his party came to buy hands with sincerity, but they did not come to Ascendas Group to buy hands.
Rather, we came here for two domestic cooperation projects carried out in the late 1980s.
One is the intermediate training aircraft project cooperated with Hongtong Aircraft Manufacturing Factory in 1986.
The other is a light fighter project in cooperation with Berjaya Airlines in the late 1980s.
Originally, these two external military cooperation projects had nothing to do with Ascendas Group, an aviation manufacturing enterprise that was not even a reserve force.
So even though there is a Chengdu Airlines that is closely related to the Ascendas Group and developed from the Chengdu Factory, it generally has nothing to do with the Ascendas Group.
After all, after these years of development, Ascendas Group and Berjaya Airlines have become increasingly different in their corporate paths.
Ascendas Group is taking the dual-use approach of large platforms, both military and civilian.
Because of its military genes, as well as its participation in multiple modifications of the J-7 and the No. 10 Project, Chenggong Aviation is heading more and more towards becoming a professional military equipment manufacturer.
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The Ascendas Group¡¯s superior manufacturing capabilities and professional aviation production equipment enable Chengdu Aviation to obtain world-class aviation production and processing technology in the first time.
The technology and accumulation gained by Chengdu Aviation in fighter jets can also make up for Ascendas Group¡¯s lack of experience due to background issues.
All in all, the relationship between Chengdu and Tengcheng has been deepening over the years. If the two are considered as a whole, their products include third-generation fighters, second-generation light fighters, small general aircraft, light transport aircraft, and even medium-sized transport aircraft. Almost the entire industrial chain.
Not only that, they are also involved in the fields of aerospace, missiles, drones and other fields. They have become the most active comprehensive aerospace production base in China with the largest output value, the richest product categories and the highest innovative added value.
However, as the saying goes, brothers settle accounts clearly, Cheng and Teng are in harmony, and their respective core businesses are still distinct from each other.
However, all this suddenly changed after the last time the head of the headquarters inspected the turbofan engine production line of Ascendas Aviation Power, a subsidiary of Ascendas Group.
This is mainly because the power system of the intermediate trainer aircraft undertaken by Hongtong Aircraft Manufacturing Factory was unable to obtain the original American supply for some reasons, so that the trial production was seriously delayed.
The head of the headquarters inspected the Ascendas Aviation Power Plant not only to see the production status of the target 5 cruise missile target aircraft power system, but also to find out whether the Ascendas Group has any way to solve the power problem of the intermediate trainer aircraft.
It is not difficult at all for an aero-engine manufacturer that can provide a 3.8-ton thrust turbofan engine for the Y-15plus to come up with a 2-ton turbofan engine.
What's more, Tengfei Aviation Power is taking the route of core aircraft derivatives. Over the years, the improvement of the hx-4-1 core aircraft has been uninterrupted. With the continuous application of new materials and new processes, the hx-4-1 core aircraft It is becoming more and more mature, and the operating power of the latest improved model is close to 3 megawatts.
Based on mature and reliable core aircraft, Tengfei Aviation Power cannot say that it can do whatever it wants in terms of aero engines, but it can master the aircraft models comprehensively.
If not, it would be impossible to produce a wd-48sm turbofan engine with a thrust of 3.8 tons at once.
You must know that the wd-48sm turbofan engine is a typicalThe high bypass ratio turbofan engine is mainly used in military transport aircraft and regional passenger aircraft.
The thrust of its small bypass ratio version is 2.4 tons, while the entry-level version of the early trial model has a thrust of only 1.8 tons.
The three engines are all second-generation modifications of the hx-4-1 core engine. There is nothing to say in terms of performance. It depends on which one the customer needs, which one can be produced directly according to the thrust requirements.
Of course, the chief engineer of the intermediate trainer aircraft at Hongtong Aircraft Manufacturing Factory wants a small bypass ratio version with a thrust of 2.4 tons. In this way, the flight performance, airborne time, and operational quality of the intermediate trainer aircraft will be qualitatively improved.
But the problem is that the size of the intermediate trainer aircraft is too small, and the size of the small bypass version with 2.4 tons of thrust is a bit larger. There is no way. When Ascendas Group developed this power, it never thought of installing it on a combat aircraft. According to the standards of a light transport platform, it is made a bit thicker. If you want to install it on an intermediate trainer aircraft, you have to push it all over again. This cost is too high.
With no choice but to choose the 1.8-ton entry-level version, the wd-42s turbofan engine, the general indicators are roughly the same as the US-made tfe-731 turbofan engine previously selected for the mid-level trainer aircraft.
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
Cruise thrust 452kg
The overhaul and overhaul time is 1800 hours, and the total life is 7600 hours.
In terms of performance, although it cannot keep up with the latest model of the American tfe-731 series turbofan engine, it is not only not inferior to its previous models, but also slightly surpasses it in some indicators.
For example, the American-made tfe-731-2a engine previously planned to be used in the intermediate trainer aircraft has a turbine inlet temperature of 956 degrees Celsius, which results in its maximum thrust being only 1,601 kilograms.
Because of this, although the chief engineer of the intermediate trainer aircraft is a little resentful about not using the small bypass ratio version with a thrust of 2.4 tons, he is still very satisfied with the wd-42s turbofan engine as a whole. In any case, with the increased thrust, There is not much increase in weight. Once the mid-level trainer aircraft is adopted, not only will there be a qualitative leap in performance, but the improvement in flight quality is certain.
With the intermediate trainer aircraft from Hongtong Aircraft Manufacturing Factory in front of us, Chenggong Aviation¡¯s light fighter project has begun to be itchy.
The mid-level trainer aircraft had to be suspended in terms of power, and the light fighter project had no power at all. So after hearing that Ascendas Group had begun to develop the next generation 6-megawatt core aircraft and was preparing to launch a 6-ton medium-sized turbofan power, Just like an old virgin who has been holding back for decades, he finally meets the goddess he has admired for a long time and pounces on her with a cry!
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