"Erdaoliu~~~change cycle~~~"

This argument originated from Japan. The domestic quotation of this comparative second argument is mainly because the introduction of the popular science of variable-cycle aero-engines first came from Japan.

No way, Japan in the 1980s and 1990s can be said to be a technological power on the planet second only to the United States. Let alone the annual Nobel Prize winners, let’s talk about Sony’s ultra-thin walkman and Panasonic’s rear-projection color TV. , Sanyo's drum washing machine... just take out one that is full of sense of science and technology.

Even at that time, Japanese anime was spread around the world with technological themes such as space battleships, future warriors, and alien mechas. Even "Dragon Ball" described martial arts animations with such powerful Bulma. Bai Fumei of scientific and technological innovation.

Far from being a certain endurance more than ten years later, a certain pirate is as passionate, but overall it is completely conservative and comparable to anime.

In such an atmosphere, Japanese society's enthusiasm and pursuit of science and technology far exceeds that of other places, especially the tracking of advanced American technology, which can be regarded as timely and effective.

The reason for this is mainly because Japan has a consensus that although it was put on the ground by the powerful Americans during World War II, it was hard-working, hard-working and able to endure hardships on an invisible battlefield such as economy and technology. Disciplined Japanese are not necessarily worse than American dads.

It is even possible to surpass in one fell swoop. By then, Japan and the United States may call them fathers.

Because of this, Japan has almost fixed its sights on the scientific and technological circles in the United States. It is more concerned about the United States’ every move in the field of technology than its own daughter-in-law. If the Americans can make a technological achievement, the Japanese will be prepared to follow suit. Come up with a better one.

For example, the GE21 variable-cycle aero engine developed by General Dynamics of the United States is rarely known in the United States. However, the Japanese who learned the news immediately popularized the technology, even in government-owned companies. The Aeronautical Technology Committee has established a neutral project and vowed to develop Japan's variable-cycle engine.

At that time, it was only in the early 1980s. Even the Soviet Union, the other extreme of the world, was ignorant of variable-cycle engines. Japan was ready to use variable-cycle technology to achieve corner overtaking in the field of aeroengines.

I have to say that the vision of the Japanese science and technology community at that time was still very strong.

It should be understood that the key to the variable cycle aero engine is the word "change". Simply put, it is to change the bypass ratio so that the aircraft has a far better performance than the traditional aero engine in different conditions. performance.

For example, longer voyages and faster speeds.

Because of this, the variable-cycle aero-engine is called the next generation, and even the first choice for the next-generation combat aircraft, and has become a potential stock to subvert the existing aero-engine technology path.

If Japan can follow this technical route, even if it cannot produce a variable-cycle aero engine, it can still take a big step in the field of aeroengines. After all, the Japanese do not lack technology and talents. Mitsubishi Heavy Industries' heavy-duty gas turbine turbines Just like General Dynamics in the global competition, as long as Japan is willing to work hard, there is still a lot to do.

However, in 1985, a paper square agreement made Japan completely floated, the yen appreciated sharply, and finally the Japanese who had hard currency seemed to be a long-repressed grandson monkey who instantly started the buying-buying model, what industry, what manufacturing industry, what? Invest in land, houses, stocks, or copy bonds to make money?

So no one is pressing their minds to change the cycle of aero-engines. The hard work is not as cost-effective as getting a piece of land in the outskirts of Tokyo.

In fact, Japan still has a rescue at this time. It must be known that the Federal Republic of Germany was forced by the United States to appreciate its currency. However, the Federal Republic of Germany did not drift away because of currency appreciation. Instead, it used its own currency as an anchor to continue to Southeast Europe. Infiltrate, use its powerful manufacturing industry to open up new market territories one after another, and spare no effort to upgrade the industry. In the end, instead of being dragged down by the currency appreciation, it has become a boost for Germany's re-emergence, which will be a few years later. Unification has laid a solid foundation.

On the other hand, in Japan, after several years of carnival, the bubble was burst instantly, and immediately entered the lost ten years, the original vigorous social atmosphere is no longer, and it is replaced by a decadent atmosphere.

In such an atmosphere, let alone continue to change the cycle of aero engines, even the most common propeller engines in Japan do not have the energy to invest, so the whole plan is nothing.

However, the Americans continued to develop their own variable-cycle aeroengines during this period. In particular, General Motors developed the GE23 turbofan engine on the basis of the GE21. This GE23 is nothing else, but it was later equipped to a generation. The YF-120 high-thrust military turbofan engine on the enchanting YF-23 fighter.

It is also the world's second practical variable-cycle aero engine.

As for the first practical variable-cycle aeroengine, it is naturally the J-58 variable-cycle turbo ramjet produced by Pratt & Whitney used on the famous "Blackbird" high-altitude strategic reconnaissance aircraft in the United States.

The engine can freely switch between turbojet and ramjet by controlling the airflow, so as to achieve unimaginable high altitude and high speed.

Because of this, the J-58 variable-cycle turbo ramjet, let alone in the 1960s and 1970s, is a proper black technology even now.

As for the YF-120 high-thrust military turbofan engine of General Motors, not to mention, thanks to the two modes of turbofan during cruising and full turbojet afterburner, the YF-23 fighter jet has a range of more than 4,500 kilometers. Without afterburner, it has the excellent ability to cruise for more than 30 minutes at Mach 1.45.

To be honest, at that time, many military leaders and people in the aviation industry in China were envious of these things from Japanese science materials~lightnovelpub.net~ I wanted to try it out, but at that time, there was even the third-generation high-thrust aviation engine in China. It hasn't settled yet, let alone the fourth-generation or even the fifth-generation benchmark advanced aero engine like YF-120.

It’s just that not blindly launching research and development does not mean not tracking these advanced aviation technologies. As the Americans disclosed the existence of YF-23 and YF-22 after the Cold War, domestic technology tracking has also shifted from Japan to the United States. However, the Japanese second-year science popularization is too high, especially the "Shuangdaoliu~~~change cycle~~~" is not only easy to remember, but also catchy, so it is used by many people.

Obviously, the chief who exclaimed is one of the people who continue to use it, but at this moment, the chief of the army who knows a lot about aeroengines has no time to entangle these secondary languages ​​from Japan, and glanced at the WD-vortex in front of him. Fan engine, then raised his head to look at Zhuang Jianye, and asked like a gun: "Is the range of the WD-turbofan engine vertical take-off and landing verification machine significantly improved? Can the highest ceiling reach 20,000 meters? No afterburner. Can supersonic cruise be achieved under the circumstances?..."

Hearing this, Zhuang Jianye nodded without hesitation: "Don't worry, we can all!"