"V-2500-D5 engine? This is also a good option, the engine is just 10 tons of thrust is appropriate, after all, the new transport is positioned to serve the army, the take-off and landing environment is harsh, but also need to install a thrust reversing device, etc., and the engine must also need to make some improvements for these special environments, there will inevitably be some losses in thrust, and the thrust will probably remain between 9.5-10 tons, which is indeed feasible. Pen %Fun %Pavilion www.biquge.info"

Although Jin Chenko on the side didn't understand why Yang Hui didn't recommend the CG-2000-2 engine, since the boss had already made a decision, he, an engineering designer who was only for technical advice, could only go along with it.

"The V-2500-D5 engine has now been finalized and delivered to the MD-90 aircraft for test flight, I think that while the design team over there is not yet a hand, hurry up to negotiate the project, presumably there is only a year or two to make targeted improvements to the engine, and during this period of time the new Zhongyun may still be in the design and manufacturing, so the prototype can be directly used when the engine is tested, and it is already very good to meet this point."

Although the CG-2000-2 engine is based on the CG-2000 to increase the model, but the increase needs to be crossed by the amplitude is not small, to achieve the design of the final pair is not three to four years impossible, and most of the new Zhongyun technology using the An-70 architecture, when the progress will certainly not be slow, CG-2000-2 is likely to be unable to catch up with the prototype flight test needs, so this is also a bit of truth.

From this point of view, it turns out that even Kinchenko agrees to use the modification of the V-2500-D5 engine as the power system of the new Zhongyun, which fully shows that the plan is feasible.

At this time, the situation is actually roughly clear, the new transport directly on the four 9.5 tons of thrust turbofan engine, 4x4 cargo hold to take the An-70 route, the limit load of 32 tons, the range is directly the standard of strategic transport aircraft, the front-line dirt runway lands short-distance, and the 12-ton load can take off in a short distance, this Nima is an artifact!

Even some countries that have long-distance flight requirements for transport aircraft fleets, as long as they do not choose to transport such things as main battle tanks, the new China Transport can be used as a big luck in their hands, which is really a bit too awesome.

Actually, to put it simply, like the horse in the previous face. In the case of the Voyage 370, in terms of the long-distance flight capability of the new Zhongyun, it only needs to be in the sea. Nan took off with full fuel and loaded with the required personnel and search and rescue equipment, and even did not need to refuel in the air to reach Australia.

Since the new China Transport can complete the task in the disaster relief mission, then in the entire East Asian region where the Republic is located, almost 70% of the conventional foreign flight transport tasks, this guy is also competent, the plane can be loaded with the wheel war fast reaction force, the entire Southeast Asian region is no problem to drop in the air wherever you are, and this is also the kind of back and forth tasks that can be met with a single refueling.

Therefore, this new China Games is definitely of great significance to the republic, and it can be regarded as being able to meet most of the needs of the republic's combat environment after 2000, after all, in the ground operations in Southeast Asia, then the first batch of main forces do not need to be on the main battle tank, that guy is absolutely difficult in the rainforest combat environment in Southeast Asia, and it is also a good choice to use a round battle plus a new light tank.

Since the Germans' demands were now absolutely met, they were quite satisfied at this time: "This plan is good, this plan is good!" The maximum take-off weight of 120 tons is enough to meet all the operational needs of our German army, so if Mr. Yang also thinks it is feasible, can we discuss the issue of how to cooperate in detail? ”

This is a matter of discussing how to work together. Yes, at this time, it is also necessary to calculate how to allocate cooperation tasks, and this year's cooperation with Germany, a project with a strong military application background, must be cautious, and it is better not to fall too deep.

"Yes, then let's talk about the current cooperation issues, first of all, the issue of the engine, since you proposed to use the V-2500 engine as the power, naturally this does not care about anything in the southwest of our AVIC. Secondly, this project has an obvious background in military application, although we have various statements perfunctory, but this kind of project is not so easy after all, so this time I think it is best for your MM company to lead. ”

Let MM go to the leading party (general contractor) of the project, so that at most it will be criticized for the existence of AVIC Southwest as a partner in the project. Moreover, in terms of taking 10,000 steps back, even if the project fails under pressure from the United States, the main party that suffers is only MM Company, and as far as AVIC Southwest is concerned, it will not lose much.

AVIC Southwest didn't care about the power system in the project, which is understandable, and directly and clearly chose to play a supporting role, which is very different from the previous MPC-75 when the requirements of the main force were played.

However, at this time, the Germans also wish they were to preside over the development of this 100-ton large aircraft, at least Germany has not had the opportunity to develop large aircraft for a long time after World War II, although there were more or less helicopters and turbo small aircraft projects before, but compared with the aircraft with a maximum take-off weight of 120 tons, it is really not worth mentioning!

Almost blushing, he said excitedly: "Okay, we also feel that for the safe and smooth completion of the project, based on the current special international environment, the project should indeed be led by us, just right!" Since we are a cooperative project, I am afraid that we still need more support from your side to tackle some key technologies, mainly because our manpower is not enough. ”

Hearing this, Yang Hui couldn't hold back his laughter, and thought that the Germans would always force this to continue, but he didn't think that the substantive problem would be exposed in two or three sentences: Nima, the development of large aircraft of more than 100 tons, which requires strong technical accumulation, MM company's current technology is definitely not enough, if there is no AVIC Southwest on the side to assist, it will be difficult for them to get the design.

In this way, AVIC Southwest must stand up at this time: "Of course, in addition to the fuselage bearing partition of this aircraft designed by our side, such as the design of this wing, we also package it!" Can you handle the rest? ”

The most technically challenging thing about this Zhongyun is probably the wing design of this aircraft, first of all, the ultra-zero boundary wing technology required by the aircraft, which Germany does not have, but this is already standard on the original version of the An70, so this thing can only be handled by the Republic.

Considering that the flight distance of the new Zhongyun is comparable to that of a strategic transport aircraft, the turbofan engine used is more fuel-efficient than the turbo engine, and the power of the aircraft is sufficient, it is fashionable and practical to design a pair of winglets made of composite materials.

Secondly, the most challenging aspect of the entire wing design is probably the new development of the external blowing flap enhancement technology, which also needs to be developed to carry out technical research.

But I'm embarrassed that this thing is also difficult for the Germans to complete the design, and it is much simpler to put it in the southwest of AVIC, this technology is just one of the schemes for power increase, according to the resume of Chief Engineer Jinchenko clearly wrote that he led the team to conquer the upper surface power blowing technology of the An-72 aircraft, and this thing is unfortunately the power increase scheme used by the YC-14 aircraft that competed with YC-15.

Now if you want to say who can complete the external blowing flap technology used for the first time on the YC-15 between China and Germany, it must be the chief engineer of AVIC Southwest Jinchenko, after all, this person can complete the upper surface blowing increase back then, so there must be research on the external blowing flap.

"Chief Engineer Jinchenko, you should have studied the most important outward blowing flap enhancement technology in wing design, right?"

Hearing that the head office is arranging tasks for themselves, although it is said that this project has little to do with the passenger aircraft, but it does not prevent Kinchenko from researching this technology, as far as the Xinzhou 600 project in his hands is concerned, the technical difficulty is too pediatric, there is simply no challenge, and now taking over this external flap enhancement project can be regarded as having something to kill time.

nodded confidently: "Okay, I will take over the research of the external blowing flap enhancement technology, and I am roughly familiar with the scientific research foundation of the republic, which can be guaranteed to be completed within a year and a half, I actually had a lot of research on this thing back then, in fact, your current new Zhongyun plan is actually a bit like the An-77 transport aircraft design that was not approved by the Soviet authorities in the Antonov Design Bureau era, and that aircraft uses the external blowing flap enhancement, so this technology should not be difficult for me now." ”

As soon as these words came out, it simply tormented the technicians here, the technology that everyone thought was as difficult as the sky, it was nothing difficult for Jinchenko, this person was more than a human being!

However, Yang Hui also had some emotion in his heart, this is really a treasure: "Now it's okay, we have taken over the design of the wing, are there any other problems?" ”

After this is asked, don't really say it, the Germans are also constantly having various problems, and soon new problems will come.

"Speaking of which! We do have some areas where we will need your technical support, such as the design of the center wing box of this aircraft. On large military transport aircraft, the force on the central wing box is very complicated, and the C-141 transport aircraft of the United States did not leave enough design margin in this regard, which directly led to the breaking of the wing of the aircraft from the central wing box. ”

After saying this, the German guy is called a heart stopper! I think that when Germany built airplanes, the Chinese Republic was still a semi-colonial country in the midst of war, but now Germany's aviation industry is so depressed, what a shame on our ancestors!

"I think so, this project is indeed led by your German side of the design, the design team is also arranged in your Germany, and we will send a technical personnel with sufficient technical ability in all aspects to form a Chinese design team, will participate in the project design together, if there is any big problem, you can call them to tackle the problem together."

After thinking about it, I feel that it is definitely not enough to just undertake some design tasks, and the supporting processing capacity required by this 100-ton large aircraft is also very demanding, and it is difficult for the German side to complete the task quickly, and even if it is not for the layout of various types of special production equipment in advance of AVIC Southwest, it can only be seen dryly, but this is good that AVIC Southwest has prepared in advance, and it will be sent to the West.

"Not only the design problems, such as some key large-scale special forgings, titanium alloy structural parts manufacturing, we can undertake the manufacturing task of AVIC Southwest, we can also undertake the manufacturing of large parts of the prototype, and then use the An-124 transport aircraft that we rented to transport MPC-75 large parts directly to Germany for final assembly. But in that case, we need to negotiate the R&D funding separately, right? ”

I didn't expect that there is such an intimate novice village service, the whole from the design of technical support, to the manufacture of prototypes, large special forgings, structural parts can provide mass production, the most important thing is to undertake these key technologies of AVIC Southwest also do good deeds without leaving a name, the overall design of the aircraft, the final assembly are hung in Germany MM company, and the follow-up test flights are all carried out in Germany, which is enough to give it!

This must be moved, can have such an assistance, why worry about the big thing: "Don't worry about the development of funds, although our project is nominally at the company's own risk, but the German government is very supportive of our plan to revitalize the German aviation manufacturing industry, so the German government will give a lot of government support and interest-free loans, when the time comes, our MM company can bear more than 80% of the research and development funds, you probably only need to contribute less than 150 million US dollars, but you can have 40% of the project shares." ”

This has to say that the Germans are still relatively conscientious at this time, and in the mid-to-late 90s, they were able to invest 150 million US dollars to get a 40% stake in a key large aircraft project.

But to be honest, what AVIC Southwest or Yang Hui really cares about is not the question of how many project shares can be occupied, but the most important thing is: "40% is acceptable, anyway, we will have to undertake some production tasks at that time!" You can also make a few small bucks with this. Now the requirements of AVIC Southwest are that we must have a copy of the technology of the entire project, including all the materials such as design, flight test, and production. Of course, you can't get the engine, and we won't be able to make it difficult for us. ”

Of course, the Germans knew what the southwest side of AVIC was worried about, but to be honest, they also had their own worries about the request made by Yang Hui this time, and after thinking about it for a long time, they still felt that their interests should be fully protected.

"I also know what I'm worried about, there is no problem with the full set of information you want, but you must ensure that these materials cannot be transferred to a third party, and in the future, your own aircraft can only be used by yourself and cannot be exported, as long as you can agree to this, now you don't even have to pay for the development of the project, and all the investment is borne by our MM company."

In fact, at this time, Yang Hui's heart was pounding, which did not cost a penny to get a new generation of medium tactical transport aircraft technology, testing, and production materials, and also accounted for 40% of the project's shares, and what was needed was only to fully support the project development work in technology.

"Yes, we accept such a cooperation plan." (To be continued.) )