Chapter 898

This situation is the last thing Djokovic, a man of insight in the Russian aviation industry, wants to see. The question is, can they stop it?

Perhaps in the Soviet era, with its strong military strength and political influence, it could hold down the ambitious group like China's take-off group, which was ready to carve up Russia's economic sphere of influence.

But now, Russia, which inherits the vast majority of the Soviet Union's legacy, has not gone as the politicians promised, and Russia will be stronger and stronger if it breaks down the Soviet Union. On the contrary, it is stronger and stronger if it does not see itself falling apart. Under such circumstances, the domestic problems are uneven, and how can it radiate to the surrounding areas?

Just when Djokovic and others were staring at wd-60ml-22 turbofan engine and thinking about how to face the competition of the rising star Tengfei group and how to break the game, Liu Cong suddenly coughed and said something that made Djokovic even more frightened:

"next, we will further improve wd-60ml-22 turbofan engine The plan has been launched, and some areas have entered the engineering implementation stage, which will be the ultimate model of wd-60ml series, wd-60ml-18 turbofan engine.

It will use the improved h-zb900 composite material with high strength and ultra-high toughness to make the fan blade. Remember what I said just now, it is ultra-high toughness rather than the high toughness of h-zb800 at the present stage. "

After giving some emphasis to the people present, Liu Cong gave a pause, as if he really regarded Djokovic and others as students, deliberately letting them digest what he had just said.

And Djokovic and others really cooperate with the frown, a bad hunch immediately rushed to the heart.

Sure enough, at the next moment, Liu Cong burst out a surprise: "on this basis, we will reduce the number of primary fan blades of wd-60ml series turbofan engine from 22 to 18, so as to further improve the operation efficiency of primary fan while reducing the weight of engine.

At that time, the bypass ratio of this wd-60ml-18 turbofan engine will reach 11, which will expand the fan diameter to 2.1m, and the maximum thrust will break through to 16 tons. Based on this high thrust engine, our Tengfei group will launch a large civil aircraft with a maximum take-off weight of 120 tons and a passenger capacity of 240 people. Xiao Wang ~ ~ ~ will give us the information. "

With Liu Cong's command, several staff members immediately took action, just like magic. They put the bracket on the engine test bench, put on the drawing board and engineering effect drawing. Liu Cong did not use the indicator stick, but used his own hands to compare and draw the introduction:

"this is our fcnb-2000 project, and the target aircraft are Boeing's 757, Airbus's A321 and MAC In addition to two wd-60ml-18 turbofan engines, the most important feature of Dao MD-95 is that it will use a large number of advanced composite materials. We initially predict that the amount of composite materials will reach 30.7%, which makes our znb-2000 the most widely used aircraft in the world... "

Liu Cong's mouth in front of all kinds of boards is just like the flood that has opened the gate. It's endless, but Djokovic, standing opposite, can only watch Liu Cong's mouth open and close up and down, and can't hear a sound, because at the moment, the old expert's head from Tupolev is as buzzing as a frying pan.

In fact, when Liu Cong asked someone to take up the plate and saw the effect picture of the plane with the words fcnb-2000 on it, Djokovic's head exploded.

It is the so-called layman watching the scene, the expert looking at the door, Liu Cong out of these renderings to see in my eyes, at best, will only be praised as "beautiful".

But in the eyes of experts like Djokovic, every detail of the renderings is worth pondering.

Not to mention the streamlined, slender and round fuselage, nor the iconic vertical tail and horizontal tail, but to say that every aircraft has an essential wing. From a few renderings, Djokovic knows that Tengfei group is not only playing for real, but also technically at least two generations ahead of the Tu-204 aircraft they are striving for.

This is not to say that fcnb-2000 applies the supercritical wing which is not applied in figure-204, nor that the wing shape is more like the wing shape of Falcon gliding at high altitude, which proves the excellent ability of Tengfei group in the aerodynamic shape.

But in just a few pictures, when fcnb-2000 is still on the ground and flying in the air, the slightly upward angle of its wings makes Djokovic look like he was blasted by five thunderbolts.

You know, it's a new wing structure developed based on composite materials and new production technology. Compared with the traditional wing, it can only resist the power of the air in flight under its own structure frame, and achieve different flight in the way of a fierce man in the sky.

This kind of wing is like the goddess of softness. It changes its shape with the strength of air resistance in a weak and boneless posture, so as to adapt to or even make use of air resistance and make the aircraft have more excellent flight performance.

In other words, this kind of wing is more like the wing of falcon, which can adjust the fluctuation of the wing according to different speeds and heights.Human flight starts from imitating birds. When aviation engineers continue to study bird flight, they naturally notice that bird wings adjust themselves with different air resistance, so they want to apply it to aircraft.

Unfortunately, due to the fact that the materials and manufacturing technology have never been realized, it is possible to apply this technology only after NASA made an equal proportion flexible wing with composite materials and successfully tested it in the late 1980s.

The benefits brought by the application of this technology are subversive. The first is to save fuel, the second is to reduce the total structure of the aircraft. Once again, the flight can be improved, once again, the noise can be reduced, once again, the aircraft is more stable, once again

All in all, there are a lot of advantages. Otherwise, the billions of years of evolution of birds will not be in vain.

Boeing immediately purchased the patent from NASA and applied it to the latest Boeing 777 after further research.

Airbus is not willing to lag behind. However, it is technically inferior and can only gather the strength of the whole Europe to tackle key problems.

Of course, the former Soviet Union and Russia also noticed this kind of epoch-making technology that may change the pattern of civil aircraft. They wanted to follow up, but they broke up first.

However, to Djokovic's surprise, the former student, who is always following behind the Soviet Union, is also aiming at this direction, and seems to have made great progress.

Before he came to Tengfei group, Djokovic did not believe that China could make such flexible wings. However, when he saw the fourth generation fan blades, learned about the composite fan blades and the wd-60ml-22 turbofan engine of the d-30kp turbofan engine, the lingering distrust was long gone All that remains is deep fear.

If this is done by Tengfei group, then Russia's civil aviation industry will be finished?