Just as Qin Feng was listening to Colonel Mido's introduction and preparing for the test flight, the other members of the delegation were visiting Dassault's factory.

Boileau took his biggest potential customer to the Toulouse plant, where Dassault was the production site, where the Mirage F1 fighter was being produced in an orderly manner.

The whole factory is clean and tidy, and the management of the other party is quite in place, each component has a special placement, and every process will be recorded.

Everyone is very serious, such a quality management system is quite good, who does not do a good job, can be traced to the specific responsible person at any time, unlike the country, messy, I don't know whose mistakes caused it.

Everyone looked very seriously, and soon, they came to the assembly workshop, where there was already a Mirage 2000 fighter that had been assembled.

"Our fighter uses the M53 engine, which is an excellent turbofan engine." Boileau introduced everyone.

Now, the top technology of aero engines is already monopolized by Britain and the United States, and the strength of GE and Rolls-Royce is unmatched.

The road of the French to develop the aero engine industry is also uneven, and their efforts are more worthy of domestic reference.

France's aviation industry was established earlier, but before World War II, there was a lack of high-level piston engines, resulting in mediocre performance of French fighters, and later because of the German occupation, it can be said that valuable development opportunities were lost.

You know, in the world war, the progress of technology is enough to compare with the usual fifty years!

After the war, the French were eager to discover that the United States, the Soviet Union, and Britain had already begun research on jet propulsion technology, and they had all sent their own jets into the sky. France understands that if it does not want to fall behind, it must first and foremost solve the problem of jet propulsion.

The French approached the BMW 003 and set up a research and development facility for him at the former Dornier plant in Rickenbach, France-occupied Germany, and the research team soon expanded to 200 people. The research team is known as the "Rickenbach Aeronautical Technology Studio", abbreviated as "Atta".

From the beginning, maybe it was an imitation, but soon, they began to develop their own, from the "Atta" 101 in 1945, to the "Atta" 9K-50 in 1969, it took the French 24 years to develop from 1 ton thrust to 7 ton thrust.

The 7-ton thrust jet engine is regarded as a symbol and an important milestone in a country's turbojet engine technology. Since then, the French have finally become one of the American, British, and Soviet powers in the field of jet engine development, forming the first group of four clubs.

What about the country? It has always been in imitation, imitation, there is no such scientific research at all, there is no such scientific research, therefore, the domestic power system, it is impossible to succeed, not to mention, the domestic is still in a hurry for quick success, even the turbojet technology has not been thoroughly understood, the index is aimed at the world-class turbofan engine data, which is simply impossible to succeed easily.

Then, the world's power system has been transformed to turbofan engines, and France will not be willing to lag behind, in 1967, Snecma began to build the second milestone in the history of French jet engine development - the M53 turbofan engine.

This is also the irritation of the French, because in this year, France withdrew from the "Tornado" turned-swept wing fighter project in cooperation with Britain and other countries.

The disagreement of the "Tornado" plan made France feel somewhat that under the premise that the core power technology was in the hands of the British, it was difficult for them to have more say in the design.

In fact, the proud French, who want to completely dominate the research project, and eventually part ways, they do not know how to back down, even when it comes to the Eurofighter project, the French still withdraw because they want to dominate the whole thing.

The M53 was originally called the Super "Atta", and France wanted to use it as an advanced power for its domestically produced two-speed sonic fighter. After 3 years of refinement on the basis of "Atta", the M53 was finally born.

The French were also aware of their technical flaws, so at a time when almost even the turbojet engine of the MiG-21 was a two-shaft engine, the M53 had a single-shaft design, with a fan, high-pressure compressor and turbine all on one shaft.

It can be said that it is the only single-shaft turbofan engine in service with the main fighter in the world, and the design of the M53 is quite old-fashioned.

This also makes the M53 durable and easy to maintain, thanks to the modular manufacturing concept, which makes the parts very versatile. The engineers who have maintained the M53 have the deepest impression of this engine for its simplicity, it has no adjustable stator, the number of moving parts is small, its reliability is good, the handling is good, and there are no limits to its performance in use.

Now, Boileau is introducing this engine.

"This is the most advanced engine in the world, it uses a modular structure, which is easy to maintain and repair, and the ground maintenance of the aircraft and engine is very good, and the time to replace the engine is quite short." Boileau said proudly: "Now, let's show you the repair process of this fighter. ”

In fact, the fuel consumption rate of this engine is not low, it is simply a turbojet in a turbofan, but Boileau will certainly not talk about his own shortcomings, he is looking for advantages.

It is said that the MiG-21 fighter, that is, China's latest J-7 fighter, needs to disassemble the rear fuselage to replace an engine, and it will take two days to do it, and now, let them be surprised!

"Mr. Boileau, how long will it take?" Song Lao asked cautiously.

At the beginning, when Qin Feng came last time, the other party accidentally typed out the structural diagram, and after that, Qin Feng relied on his memory to start drawing the structural diagram, and finally handed it over to Song Lao.

According to this structural diagram, Song Lao can know that the structure of this aircraft is different from his own, and the engine can be lifted directly from the tail, which is quite convenient, but I really don't know how fast it can be.

Boileau raised his arm and said, "Now, the clock begins!" ”

As Boileau began to count the time, four technicians came up and began to disassemble it with various tools.

The sound of the electric wrench echoed in the workshop from time to time, and everyone watched as the skin below was removed as a whole, and then, the lower part of the engine was exposed, followed by the fastening bolts of various engines and fuselages.

The other party's engine is directly put in the tail?

Although Song Lao has already seen the structural diagram, it looks very fresh now. Isn't there a need for an ejector tail cover?

。 m.