Traveling through the sword to engage in military industry.

After introducing Rolls-Royce to the cooperation of passenger aircraft and new turbofan engines, according to Ren Zhong's plan, after CAC-120, the new widened and thickened CAC-150 will be designed in a hurry, with a layout of 5 seats and 30 rows; after the Spey turbofan engine iteration obtains a new model with greater thrust and stronger thrust, the CAC-180 will be designed to continue to be elongated on the above model, forming a layout of 5 seats and 36 rows! Compete in the 200-seat market in the future. Because this passenger specification is already comparable to the Boeing 4 with 707 engines and the McDonnell Douglas DC-4 with 8 engines, but it is still lacking in range. Under the current aero-engine power conditions, it is basically within a range of 4000 kilometers.

However, the advantage of twin engines is that the operation and maintenance costs and operating costs are much lower, which is very competitive for European and African airlines. According to the popular routes covered by the two aviation centers of Fog City and Eifel, the single-seat operating costs of the re-customized A300-110/A300-130/A300-160 can be reduced by more than 15%.

In this way, the 100-200 seat passenger aircraft jointly developed by Dongda and Rolls-Royce will have great advantages in the medium and short-haul flights between the two sides.

As for the 200-seat class, Ren Zhong needs Dongda and Rolls-Royce to successfully develop the RB211 three-rotor turbofan engine before he can further enlarge the fuselage and continue to develop a twin-engine, long-range, large-capacity passenger aircraft.

As for the current long-range passenger aircraft, Ren Zhong's plan is to cooperate with Rolls-Royce on the basis of WS-9 to further increase the thrust to more than 65 kN. The improvement technology route is very clear. According to the development of Spey in the main world, the Rogue Eagle once improved the non-afterburning TF-168 engine based on the Spey RB25-41R, and produced about 1419 units for its A-7 attack aircraft. This TF41 changed the prototype's 5-stage fan to a 3-stage fan and a 2-stage low-pressure compressor. The fan diameter increased from 826 mm to 950 mm, supercharged the air flow and pressure ratio, cancelled the engine inlet guide vane, changed the high-pressure machine from 12 to 11, and adjusted the turbine guide vanes and rotor blade installation angles, which increased its thrust by 17%, from 55.4 kN to 64.5 kN (5.65 tons to 6.57 tons), and the Type 2 was increased to 66.8 kN (6.8 tons).

Therefore, theoretically, if WS-G follows the TF-41 improvement route, it should be able to achieve the new goal of 65 kN soon.

This will increase the thrust of the twin engines by more than 35%, exceeding 130 kN. Without making major changes to the fuselage, the CAC-180 (A300-160) large-capacity series long-range version can be quickly completed by appropriately increasing the fuel tank capacity. According to current intercontinental needs, the fuel tank capacity can be increased to 25 tons, and the range can easily exceed 7000 kilometers, temporarily making up for the shortcomings of intercontinental shipping. After the new three-rotor aircraft engine comes out, the new CAC-200 (A320) 200-seat passenger aircraft will be launched.

From the current technology, this development route has the lowest risk and is the most suitable for the shipping market. It covers the 100-seat 3000-kilometer range market and the 200-seat 8000-kilometer range market. The technical difficulty is relatively controllable, and there are no particularly large obstacles to technical improvement. With the carbon fiber technology route introduced by Ren Zhong, the weight of the aircraft engine and the fuselage can be greatly reduced, and the twin-engine passenger aircraft can compete with the competitor's quad-engine passenger aircraft. Dongda's passenger aircraft can maintain a continuous competitive advantage.

Of course, this process may take more than ten years to complete. Through so many years of research and development, Dongda's aviation industry has basically developed its own team in the design of large passenger aircraft and research on aero engines. If there are any changes in the future, it can also evolve completely on its own.

Because in the engine development after RB211, Ren Zhong's role in the team's research and development has become increasingly macro.

The research on the Spey engine, which has been completed by trickery now, will not have so many pixel-level replication opportunities in the future.

It is very difficult to get an existing aircraft engine. There must be a reasonable purpose to buy an aircraft!
Even if Ren Zhong is a millionaire, it is unlikely that he would buy planes one after another.

After all, the next most easily obtained sample is probably the common CFM56, which is usually used on passenger aircraft of the A319 level. It costs hundreds of millions just to purchase one, and it also needs maintenance every year. With such expenses, Ren Zhong in the main world can hardly afford it, after all, his money is mainly invested in research and development.

At the same time, the more advanced the reverse engineering is, the more difficult it is to reverse.

It’s just that for modern, fully digital new aircraft engines, we know basically nothing about program control, so mere imitation is no longer feasible.

Therefore, Ren Zhong is now focusing on developing the research team's technical accumulation. After cooperating with Rolls-Royce, a world-leading aircraft engine company, to research several aircraft engines, he will learn how to research a new aircraft engine from their actual positive research thinking.

We are now working closely with Rolls-Royce and are conducting research on at least three engines simultaneously.

One is a vertical take-off and landing engine based on the detailed design data of the Tumansky R-27V-300 lift/propulsion turbojet engine and the RD-38 lift engine, combined with the Pegasus engine obtained by Rolls-Royce. The possibility of continued joint research on a vertical take-off and landing fighter with the subsequent twin engines is not ruled out.

The second model is WS-9G, a slightly innovative and enlarged version of WS-9 developed by both parties. It will be mainly used for power upgrades and long-range needs of CAC-120 and A300 aircraft.

The third one is the famous RB211 three-rotor engine, a brand new turbofan engine with a three-rotor design following the WS-9, with the design ideas mainly provided by Tokyo University.

Since the technical ideas for these three engines mainly came from the aviation engine design team of Dongda University, it was impossible for Rolls-Royce to refuse the opportunity to climb to the top of the world's aviation engines together, even if it was a new lift engine developed for vertical take-off and landing fighter jets. After both parties jointly invested funds and technology, the cost of researching the three engines was at least two-thirds less than if they had developed it alone, according to internal estimates by Rolls-Royce.

In other words, their current investment in jointly researching three engines is not as much as their investment in researching one engine individually.

This is because the University of Tokyo has given very clear ideas about the research and technical routes for these future engines, so they can spend less time on exploration.

In the main world, it took Rolls-Royce 211 years to develop the RB10 engine and achieve mass production. Rolls-Royce began developing advanced transport aircraft engines in 1961 and began to study the three-rotor solution. The development of the RB211 engine began in the mid-20s and was not put into mass production until 60.

But now that we have the main design ideas from the University of Tokyo, we plan to complete the design and prototype in about 3 years, and achieve first-generation mass production in 5 years at the latest!

This will save a lot of R&D funds for the project and seize the golden time of aviation development in advance.

Rolls-Royce simply couldn't refuse such an opportunity.

Of course, the Dongda Aero Engine Company, which successfully copied Spey, also successfully made Rolls-Royce recognized as a top aircraft engine design company.

In addition, the engine information that Ren Zhong obtained from the main world were all successful experiences. Although the original ability of the engineers of Dongda Aero Engine Company was a little weaker now, with Ren Zhong's encouragement, they still absorbed the information they obtained and completed the theoretical demonstration, making it impossible for the designers of Rolls-Royce to tell that this was something that came from somewhere else.

Ren Zhong has temporarily mastered two important steps in aviation development. The first is to bring passenger aircraft into the mainstream Western market, and the second is to sneak into the top Western aircraft engine research and development companies to absorb valuable engineering experience through joint research and development. If we have the experience of joint research on these three new aircraft engines, even if Rolls-Royce can't stand the pressure and cancels the cooperation, then Ren Zhong will be very confident to carry out his own aviation optimization and iteration on this basis. After all, if we can get through the full set of experience steps from the beginning to the end of the research of these three engines, it is equivalent to formally learning the modern aviation engine engineering practice, supplementing the path experience that is missing from taking shortcuts, and then we can combine the experience of the modern world and start researching the WS-10 high-thrust and civil aviation engine's top engine, the Trent engine.

Truly realize the freedom of development of the aviation industry.

Of course, these are all things that happened many years later. The RB211 alone is enough to be played with for at least 20 to 30 years. After all, in the main world, Rolls-Royce's RB211 continued to be discontinued in the 90s, and its successor model, the Trent, only began to gradually replace the RB90 in the 211s.

According to Ren Zhong's plan, Ruida is also the perfect successor to RB211, regardless of whether it can cooperate with Rolls-Royce in the future.

Following the footsteps of Rolls-Royce in the main world, the Rolls-Royce in the world of Bright Sword is almost certainly not as eye-catching as in the main world in terms of engines, because there is still Dongda Aero Engine leading the way like a pioneer. However, with the passenger aircraft business, Rolls-Royce is obviously no longer a simple aviation industry supporting manufacturer, but a Western aviation giant.

So for Luo Luo, Tokyo University is a blessing in disguise and it benefits him as a whole.

Ren Zhong watched as the aviation industry finally completed a major layout, and now he only needed to focus on the execution of some nodes.

With cooperation in several major projects such as food, aviation, and automobiles, Todai has opened up a gap in the West.

Soon, the Gauls also came over following the smell.

"Dean Ren, our Railway Technology Research Center is facing a difficult problem now." Professor Zhao Xiaoming, who is in charge of railway technology research and development, usually does not go to Ren Zhong with questions.

But major issues must be reported.

Such as now.

“我们从E5内燃机开发的东方5型机车头得到了大量的应用，我们自己研发的第二代E7内燃机东方7型已经实现了重载牵引和120公里/小时快速铁路客运，投入到了几条主要路线的运输中，现在我们的第三代E9内燃机东方9型已经试运行成功160公里/小时高速。但是现在大家争议比较大的是接下来更高速度的演化采用什么技术路线问题。甚至于开始争论我们是否还需要比160公里更快的铁路机车。”

Professor Zhao Xiaoming briefly and concisely expressed everyone’s current confusion.

Ren Zhong was not surprised at their confusion.

"What is your mainstream opinion now?" Ren Zhong did not express his own opinion first, but continued Professor Zhao Xiaoming's question.

"The mainstream opinion within our company is that it is necessary to further increase the speed of railways, but everyone has different opinions on whether the final speed should be increased to 180 kilometers per hour or 200 kilometers per hour.

Because based on the internal combustion locomotive, the speed limit is basically 200 kilometers per hour. So the high-speed railway limit that everyone discusses is 200 kilometers per hour. Originally, there was not much objection to this conclusion, but recently a Gaul company had a technical exchange with us, and some comrades believed that our high-speed railway technology route needs to change to a more new electric locomotive. "

"Which company are you communicating with?" Ren Zhong asked curiously.

"It was Alstom from Gaul. According to them, as early as 1955, they conducted short-distance tests on the Landes-Dax line in the Bordeaux area, and twice set new world railway speed records: first, on March 3, the Alstom locomotive numbered CC28 reached a test speed of 7107 kilometers per hour, and the next day another BB320 locomotive broke the record with a speed of 9004 kilometers per hour. This is the world's highest railway speed achieved by an electric locomotive.

After listening to the introduction and reading the relevant information provided by Alstom, some of our comrades believe that electric locomotives are the hope for future high-speed railways, and the upper limit of high-speed railways should be raised to 350 kilometers per hour, so that they can compete for the aviation market within 1000 kilometers and become the best means of transportation within 1000 kilometers. "

"According to Alstom's tests, the upper limit of the high speed of this electric locomotive is theoretically possible, but the tests also proved that there are big problems with the current car body, tracks, etc. Under an average light load of 6 tons, the tracks were deformed for hundreds of meters in the test section. To solve these problems, we must not only re-examine the tracks and car body, but the cost of track construction in the future will be several times that of ordinary railways!" said Professor Zhao Xiaoming.

It's them, Ren Zhong's heart moved. Although he didn't know much about this company in the world of Bright Sword, in the main world, it was a technologically advanced company with a bizarre fate. It was a typical example of being suppressed even by the same camp.

In this world, Alstom has no intersection with Dongda, but in the main world, this company has left an important mark in the history of our electric locomotive development, and is also one of the providers of high-speed rail technology.

Unexpectedly, in the world of Bright Sword, before Dongda found them, they came to them on their own.

However, when Ren Zhong thought about the Rolls-Royce incident, he realized the key: Alstom could not get enough money in the country to develop its own high-speed rail lines!

After all, Gaul and the British Empire were both victims in World War II. Even though they won the final war, they had basically exhausted their last vitality. Compared with the British Empire, Gaul was actually even more miserable!
Ren Zhong did not rush to answer Professor Zhao Xiaoming's question. After returning to the main world, he conducted a fairly in-depth study of the company and then comprehensively reviewed the history of high-speed railway development before calling Professor Zhao Xiaoming over. (End of this chapter)