And that's exactly what happened.

If the aero engine before Tengfei Group can only go around in the circle of UAVs and light aircraft, then the WD-52ML turbofan engine is really a masterpiece.

This turbofan engine with a maximum thrust of 5.2 tons is developed by Ascendas Group on the basis of the D-50 turbo gas power unit.

As the basic model of the gas turbine of the Navy's small ships, the D-50 turbine gas power unit has been used as marine power for so many years to serve the navy, offshore drilling platforms and some civilian ships.

The reason why the aero engine model was not developed immediately was because the weight of the D-50 turbine gas power unit itself was too large, and the weight of the whole machine was maintained at about 1.5 tons.

As a marine or ground power, 1.5 tons is nothing, but it is too big for an aero engine, which seriously affects its thrust-to-weight ratio.

Tengfei Group has not thought about reducing the weight of D-50, but after tossing for several years, it has used a lot of methods, but the effect has not been obvious, for no other reason, just because Tengfei Group has fallen into the problem of lack of green and yellow in advanced aero engine materials.

You must know that Tengfei Group at that time has brought the general nickel alloy to the extreme, although the most cutting-edge ceramic-based, carbon-based and aluminum-titanium alloy progress is not small, and even has begun to be applied on a small scale in some places, but the stability of these cutting-edge materials is slightly poor, similar to the turbine disk, transmission shaft, rotor, combustion chamber and other key components of aero engines can not be applied, so even if Tengfei Group has broad future prospects, it has to face a very realistic problem.

What about the gap between traditional nickel alloys and the advanced materials of the future [NEW www.xxbiquge.xyz]?

The solution given by the United Kingdom, the United States and other aviation powers in this regard is powder superalloys, the most representative of which is the general Rene series of materials, the famous CF-6, CF-34, CF-56, F-110 and other advanced aero engines are used in this material.

It is no exaggeration to say that the Rene series of materials is a key element in the advancement of aero engines.

The Tengfei Group is almost blank in this regard, not to mention the Tengfei Group, and the progress of the whole country in powder superalloys is not optimistic.

There is no way that this thing belongs to the strategic material of the strategic material, and all countries in the world are supplied like a baby, and it belongs to the kind of thing that can't buy good things even if you spend no amount of money.

If you can't buy it with money, you have to do it yourself in China, but this thing involves metallurgy, materials, mechanics, basic chemistry and many other disciplines, Britain, the United States and other aviation powers rely on the old foundation of more than 100 years, plus the results achieved by bringing together the world's top talents, the modernization process is less than half a century, and the whole country can solve the problem of food and clothing How can it be compared?

It is based on this reality that the second-generation core aircraft of Tengfei Group will set the development goal of more than ten years, no way, the powder superalloy technology cannot be solved in a short time, even if it is solved, it will lag behind the United Kingdom and the United States and other aviation powers, so it can only aim at the third-generation aero engine materials and achieve corner overtaking as much as possible.

Based on a variety of practical problems, D-50 turbine gas power unit in the Tengfei Group position is actually very embarrassing, originally Tengfei Group expected that the current Tengfei Group only can reach 4000 kilowatts of power gas power unit can be quickly formed, so that Tengfei Group's next Haidongqing plan can continue to advance, so as to in the mid-nineties to the beginning of the new century this period of opportunity window of opportunity for the replacement of domestic and foreign regional airliners to obtain the expected huge benefits.

However, due to the dilemma of materials, the D-50 turbo gas power unit is the same as the second-generation core on the road to the realization of aero engines, which is called a difficult step.

There is no way to take off the group can only look abroad, hoping to solve this problem by introducing medium thrust engines, after all, there are few windows of opportunity for regional airliner replacement in a lifetime, since it can meet nature, it can not be let go.

The problem is that the introduction of engines can solve the problem, but the relevant manufacturers also have a lot of restrictions on Tengfei Group, for example, Pratt & Whitney requires that the regional aircraft with Pratt & Whitney engines produced by Tengfei Group must obtain European and American airworthiness certificates, otherwise they will not be sold.

Because Pratt & Whitney does not know whether Tengfei Group's Haidongqing series regional airliners meet aviation safety standards, it is afraid that it will frequently drop the aircraft and smash the brand if it is sold.

The British Rolls-Royce company is a little better, not so harsh, but it requires that the Takeoff Group regional airliner with Rolls-Royce engines can only be sold in East and Southeast Asia, and it is best not to interfere elsewhere, because Rolls-Royce has shares in Brazilian and Canadian aviation companies, and Rolls-Royce does not want competition between them to affect the proportion of Rolls-Royce engines.

As for GM, he didn't even take care of the Tengfei Group, so why did he sell the engine to you? There are so many aviation manufacturing companies in which GM has a stake, and its own people are still too busy, so do they have the leisure time to take care of outsiders?

The attitudes of the world's three major aero engine manufacturers are different, but one thing is the same as agreed, that is, regional airliners equipped with their aero engines can only be limited to the civilian field, and must not be used for military purposes, otherwise the maintenance and spare parts supply of aircraft engines will be stopped.

The reason why Tengfei Group has been able to stumble to the present in recent years, has been walking on two legs, if the lack of military field is equivalent to cutting off a leg of Tengfei Group, if the domestic aviation market has matured is good, the problem is that the current domestic aviation market can only be said to be about to start, simply can not support Tengfei Group such an aviation manufacturer.

Therefore, Tengfei Group is very entangled in the introduction of engines, and the introduction will be put on a tight spell, and it is estimated that it will be difficult to take off for a lifetime;

Just when the Tengfei Group was troubled by how to choose, the Institute of Aeronautical Materials suddenly came to the Tengfei Group to be excited by the good news, the Institute led the nickel-based powder superalloy project to make a breakthrough, successfully surpassed the first generation of powder superalloy, the preparation of the second generation of powder superalloy, after testing, its performance is not inferior to General Motors' Rene80 material.

When the news was announced in the industry, other aviation factories were just stunned, and then the praise of the praise, the congratulations of the congratulations, only Tengfei Group acted quickly, with 10 million yuan to dig the second-generation powder superalloy technology patent together with two metal metallurgical technology experts working in the Institute of Aviation Materials.

In fact, at that time, Zhuang Jianye was aiming at a former Soviet materials expert working in the Institute of Aeronautical Materials, and the reason why the institute was able to achieve a breakthrough in powder superalloy technology from scratch and across generations was inseparable from the technical guidance of this former Soviet expert.

As a result, the Institute of Aeronautical Materials protects the calf, and even the headquarters and ministries have greeted the Tengfei Group, Zhuang Jianye saw that the master could not dig it, so he dug his students, so Tengfei Group used the "money ability" to set up its own high-temperature metal powder research team out of thin air, and soon made a breakthrough to produce nickel-based high-temperature metal powder turbine disks and nickel-based alloy single crystal turbine blades.