Chapter 879

No wonder the military observer from North Africa was so surprised. The engine of the yun-17 over his head was quite different from that of two hours ago.

It's a stout and short engine, not to mention the military observers who study equipment and tactics all day. They are laymen. As long as they are not blind, they can see that the new yun-17 is essentially different from the narrow engine compartment equipped with d-30kp turbofan engine.

It is obvious that the new yun-17 adopts a brand new engine, and is far superior to the large bypass ratio turbofan engine of the Soviet Union's d-30kp turbofan engine.

There is no way. The bypass ratio of the former Soviet Union's d-30kp turbofan engine is only 2.4. In the 1960s and 1970s, this index can only barely take the edge of the middle bypass ratio, let alone the large bypass ratio, even the second-class high bypass ratio.

In the 1990s, with the launch of a new generation of large bypass ratio aero-engine with bypass ratio over 10 by the three aviation giants of general motors, Pratt & Whitney and RORO, the d-30kp turbofan engine has lagged behind the times in other aspects except thrust.

However, even the thrust of the d-30kp turbofan engine, which is proud of, is nothing to be praised for, because it is purchased at the expense of part maintainability, whole machine life and high fuel consumption.

No matter what else, but as far as the overhaul interval is concerned, most of the similar engines in Europe and America are about 10000 hours, while the d-30kp turbofan engine is only 3000 hours, only one third of the similar products in Europe and America.

It can be seen that the d-30kp turbofan engine is not as good as it is supposed to be.

The military observers of various countries on the scene were all senior people in the circle. Naturally, they knew the disadvantages of the d-30kp turbofan engine. So when norokov said that yun-17 adopted the d-30kp turbofan engine and developed it jointly with Russia, many people were surprised and frowned.

In most people's opinion, the d-30kp turbofan engine is not a good choice. Instead, it is better to use the aeroengine on a large civil airliner. Perhaps under field conditions, this kind of civil engine is not as professional as the d-30kp turbofan engine.

The problem is that countries all over the world can not be in a state of war. Ordinary training is still the mainstream, and the characteristics of large civil culvert, such as high thrust, fuel saving and easy maintenance, can greatly reduce the cost of daily training in various countries. If so, more countries may choose yun-17.

Just when everyone was sighing in their hearts, yun-17, equipped with a turbofan engine with a large bypass ratio, suddenly appeared from behind the snow mountain as if they had a sense of it. As a result, some slow reaction military observers couldn't believe their eyes. They thought they were dreaming. How could they think of anything? It must be something wrong with their eyes.

So I kneaded and kneaded and looked up at the sky. I found that the engine of yun-17 was different. Then I suddenly realized that their dream had come true.

Other military observers are happy, but norokov, who just let out the big talk, was embarrassed.

The reason why he gave up his old face to say that yun-17 was jointly developed with Russia was that he wanted to use this way to intimidate a big country in the East and let Russia take a share in the yun-17 project.

We should know that the enthusiasm of military observers in various countries for yun-17 is in the eye of norokov. As a technical officer of the former Soviet airborne forces, how can norokov fail to see the broad market prospect of yun-17.

Let alone other countries. Even if Russia inherits the huge transport fleet of the Soviet Union, it is estimated that it will drool when it sees yun-17. It can't help that the aging rate of medium-sized transport aircraft such as an-12 in Russia is more serious. Therefore, Russia's demand for medium-sized transport aircraft is not lower than that of other countries, but even stronger.

Because of this, norokov was also shocked at the moment when he saw yun-17, but he made up his mind at the next moment that the project must be in the hands of the Russians.

This not only solves the problem of upgrading Russian medium-sized transport aircraft, but also makes a big profit in the international market.

As for whether a big country in the East will protest this kind of seizing, norokov never thought about it at all. The reason is very simple. He didn't see that yun-17 uses the d-30kp turbofan engine produced by the former Soviet Union.

What does that mean?

A big country in the East doesn't have a large thrust aeroengine to adapt to the operation-17.

think about it, the biggest power of a big country in the East today is the wd-52ml turbofan engine with a thrust of 5.2 tons produced by Tengfei group, which is not as good as a d-30kp turbofan engine. After all, the thrust of the d-30kp turbofan engine can reach 12.5 tons.

If you want to go from 5.2 tons to more than 10 tons, you may not be able to make it clear in 10 years' time according to the level of a big power in the East. In this way, it means that a big power in the East is stuck in the neck on the high thrust engine.The aeroengine of western countries is good. The problem is that it is impossible for outsiders to use it for military purposes. Since western countries can't choose, they can only use Russian products.

The only way is monopoly. Monopoly can be superior and do whatever you want.

Because of this, norokov's logic is very simple, and I will openly touch porcelain. What can a big country in the East do to me? You can come and bite me, but think well before you bite me. The d-30kp turbofan engine is the only one, so Hey, hey Or pose, do not resist, the fighting nation is still very gentle!

The first one used the d-30kp turbofan engine of the former Soviet Union, and the second one was a brand new turbofan engine with large bypass ratio.

Besides low consumption and fuel economy, the weight of the engine is much lighter than that of the d-30kp turbofan engine. What's more important is that the thrust of this large bypass ratio turbofan engine is usually not low, at least the same level as that of the d-30kp turbofan engine.

This not only makes norokov's plan to touch porcelain collapse completely, but also makes him feel embarrassed. There's no way. The previous words are too full. Now the second yun-17 flies to fight in the face. How can norokov say that he has to admit that what he said just now is for the sake of hitting porcelain?

It doesn't matter if it's at home. The key is to be in front of the military observers of all countries, and many of them are little brothers of the former Soviet Union. If the elder brother of Russia confesses, his image of being not too tall will shrink in the hearts of these little brothers.

So he said that he had to keep going, so norokov turned his eyes and his heart, and coughed twice to ease the embarrassment. He pointed to yun-17, which was falling on the runway, and said with a smile: "I didn't expect that the latest modification of yun-17 used the latest ps-90 turbofan engine in Russia. Ha ha, that's the high thrust engine that the Russian President's plane is equipped with ”

"Hey, norokov, I'll correct that the new yun-17 uses our pure domestic wd-60ml turbofan engine with large bypass ratio, and I've never heard of any ps-90 turbofan engine."

Before norokov finished speaking, a slightly hoarse voice came from behind, abruptly interrupting norokov's forced words.

They followed the sound and saw that Zheng Quanli didn't know when he had come to them.