Nor can it be blamed that the military observer from North Africa was so surprised that the engine of the Yun-17 was completely different from the one two hours ago.

It is a sturdy and short engine, let alone their military observers who study equipment and tactics all day long, it is just a layman here. As long as the eyes are not blind, he can see this new aircraft. It is fundamentally different from the long and narrow engine compartment of the previous D-30KP turbofan engine.

Obviously this new Yun-17 uses a brand-new engine, and it is far superior to the large bypass ratio turbofan engine of the former Soviet Union D-30KP turbofan engine.

No way, the bypass ratio of the former Soviet Union’s D-30KP turbofan engine was only 2.4. In the 1960s and 1970s when it was born, this index could barely be on the side of the bypass ratio, let alone large bypass. By comparison, even the next highest bypass ratio is far worse.

In the 1990s, as the three major aviation development giants of General Motors, Pratt & Whitney, and Rolls-Royce launched a new generation of large bypass ratio aero engines with bypass ratios above 10, the D-30KP turbofan engine had something to look forward to in addition to thrust. Outside the head, other aspects are already behind the times.

But even the thrust that the D-30KP turbofan engine is proud of is nothing commendable, because it is at the expense of part of the maintainability, life of the whole machine and high fuel consumption.

Regardless of other things, but in terms of the overhaul interval, most similar engines in Europe and the United States are around 10,000 hours, while the D-30KP turbofan engine has only a trivial 3,000 hours, which is only one third of similar products in Europe and the United States.

As the so-called one leaf knows the world under autumn, it can be seen that the D-30KP turbofan engine is really not as good as imagined.

Most military observers from various countries at the scene are senior people in the circle. Naturally, they know the shortcomings of the D-30KP turbofan engine. Therefore, in Norokov, the D-30KP turbofan engine was used in Norokov. , And when it was jointly developed with them in Russia, many people frowned in surprise.

Because in the eyes of most people, the D-30KP turbofan engine is not a good choice. Instead of this, it is better to use the aero engine on a large civil airliner. Perhaps in field conditions, this type of civil engine is not as good as the D-30KP turbofan. The fan engine is professional.

The problem is that countries in the world cannot actually be in a state of war. The usual training is still the mainstream, and the civil large bypass has the characteristics of greater thrust than the engine, fuel-efficient, and easy maintenance, which can greatly reduce the cost of daily training in various countries. In this way, there will be more countries that may choose to ship-17.

Just when everyone was secretly sighing a pity, the Yun-17 equipped with a larger bypass than a turbofan engine appeared suddenly from behind the snow-capped mountains, so that some military observers who reacted slowly couldn't believe their eyes. I thought I was dreaming, how could I think about it, it must be my eyes.

So I kneaded and kneaded, and looked up to the sky, and found that the engine of Yun-17 is different, and it suddenly became clear that they really "dreamed about it."

The other military observers were very happy, but Norokov, who had just let out the big talk, was embarrassed.

The reason why he put aside his old face and said that Luck-17 was jointly developed with Russia. To put it bluntly, he wanted to use this way of touching porcelain to intimidate a large eastern country and let Russia get a share of the Y17 project.

We must know that the enthusiasm of military observers from various countries for transport-17 is in sight. As a technical officer of the former Soviet airborne forces, how can Norokov fail to see the broad market prospects of transport-17.

Let alone other countries, even if Russia inherits the huge transport fleet of the Soviet Union, it is estimated that it will be drooling when it sees Yun-17. There is no way that the aging speed of medium-sized transport aircraft such as An-12 in Russia is more serious. Therefore, Russia’s medium-sized transport aircraft Not only is demand not lower than other countries, it is even stronger.

Because of this, Norokov was shocked the moment he saw Yun-17, but the next moment he made up his mind that this project must be held in the hands of their Russians.

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

As for the fact that a certain large congress in the East would not protest this kind of clever plundering, Norokov never thought about it. The reason is simple. It's not fortunate. The 17 uses the D-30KP turbofan engine produced in the former Soviet Union. Well.

What does this show?

A large country in the East does not have a large-thrust aero engine suitable for transport-17.

Think about it too. Nowadays, the biggest power of a large country in the East is the 5.2-ton WD-52ML turbofan engine produced by Ascendas Group. Together, the two engines are not as good as a D-30KP turbofan engine. The thrust of the D-30KP turbofan engine has reached 12.5 tons.

If you want to leap from 5.2 tons to more than 10 tons, it may not be understood in 10 years at the level of a large eastern country. In this way, it is equivalent to saying that a large eastern country is stuck in the neck on the large thrust engine.

Western countries’ aero engines are good or not. The problem is that their engines cannot be used by outsiders for military purposes. Since the West has no choice, they can only use their Russian products.

The only thing is monopoly. Monopoly can be high, and high can do whatever you want.

Because of this, Norokov's logic is very simple, and I blatantly touched porcelain. What can you do to me in a great country in the East? You have the ability to come and bite me, but you have to think carefully before you bite, the D-30KP turbofan engine is the only one, so...hehe...just posture, don't resist, the fighting nation is still very gentle!

As expected, the first one that came before used the D-30KP turbofan engine of the former Soviet Union, and the second one that came in a blink of an eye was a brand new turbofan engine with a large bypass ratio.

Not to mention low consumption and fuel economy, the weight is also much lighter than the D-30KP turbofan engine. More importantly, the thrust of this large duct is usually not lower than that of the turbofan engine. At least it is also the D-30KP type. The turbofan engine is one level.

This time not only made Norokov’s plot to touch porcelain completely collapsed, but also made him embarrassed to not come to stage. There is no way, the previous words were too full, and now the second flight-17 flew over to fight in the face, Noroko What does the husband say, is it possible to admit that what I said just now was just to catch the bully of China?

It doesn’t matter if this is in my own home~lightnovelpub.net~ The key is to be in front of military observers from various countries, and many of them are little brothers from the former Soviet republics. If the Russian big brother confessed this, he would be himself. The image that is not too tall is bound to shrink further in the hearts of these little brothers.

So I have to hold on for something, so Norokov rolled his eyes, his heart was stern, and he coughed twice to ease the embarrassment, then pointed to Yun-17 who was falling on the runway and said with a smile: "I didn't expect luck. —17 The latest facelift uses our latest Russian PS-90 turbofan engine, haha, that’s the high-thrust engine equipped with the Russian presidential plane..."

"Hey~~ Norokov, let me correct it. The new Yun-17 uses our pure domestic WD-60ML large bypass turbofan engine. I have never heard of any PS-90 turbofan engine. "

Before Norokov had finished speaking, a slightly hoarse voice came from behind, and he forced Norokov to pretend to be interrupted.

Everyone followed the sound, and Zheng Quanli didn't know when they had already arrived.

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