Everyone walked to the Yunbak plane and looked at the transport plane. Of course, in addition to military personnel, Li Tianfeng and others, there were many other people, such as aircraft manufacturing plants, design institutes, airports, etc., at least hundreds of people.

Minister Liu looked at the Yunbak and turned his head to Zhang Haiping next to him and said, "Director Zhang, this plane is very different from our Yunba before."

Zhang Haiping said: "There have been some improvements and upgrades based on the original Y-8. The cargo hold is wider and stronger. Our many wheeled infantry fighting vehicles can be loaded in."

Minister Liu said happily: "In the past, Yunba could not be loaded with infantry fighting vehicles. This is a huge flaw. Our military's air transport capability has also been greatly reduced. Now that the Yunbak has come, the situation has improved a lot. I am very happy."

Zhang Haiping said: "Minister Liu, the key to being able to carry out these transformations and upgrades is to have a very good engine. Our turbofan 16 engine has excellent comprehensive performance, and the thrust of a single engine reaches more than 50,000 pounds. Such strong thrust, not to mention the small Y-8, even a larger model of transport, our turbofan 16 engine can also be competent."

Minister Liu was obviously not a technical cadre. He knew it was far less detailed and in-depth than Zhang Haiping. When he heard about the turbofan 16 engine, he immediately pointed to the two engines on the wings and said, "This is our turbofan 16 engine."

Zhang Haiping said: "It is our turbofan 16 engine, our Y-BK two turbofan 16 engines, with a maximum total thrust of more than 100,000 pounds!"

Minister Liu said with great interest: "Let's go, let's take a look at the turbofan 16 engine first."

So everyone walked to one of the engines. Because the engine was installed in the engine compartment, they saw that there were only fan blades.

However, the fan blades are very beautiful. Not only are the titanium alloy wide-string hollow blades, but there is a special coating on the surface of the blades, and the blades appear beautifully black.

Not only that, the fan blades of the entire plate also have beautiful clock-like rotating patterns, which look more beautiful and exquisite.

As soon as Minister Liu saw this, he immediately said: "Director Zhang and Mr. Li, this is the air inlet of the engine, this is the blade of the engine, it looks very good."

Li Tianfeng quickly introduced it, and even focused on the fan part, including these fan blades.

After listening to these introductions, Minister Liu said: "It turns out that this is the titanium alloy wide string fan blade. I have heard of it, and I finally saw it today.

Minister Liu seemed very interested, looked at the fan blades in front of the turbofan engine, turned to the engine's tail spray position, and looked inside.

Minister Liu said: "Mr. Li, our turbofan 16 engine is quite large."

Li Tianfeng said: "The turbofan 16 engine is a medium-sized large-distance turbofan engine. The diameter of the fan part is 1.5 meters."

Minister Liu said: "This is a medium-sized turbofan engine. Wouldn't that large turbofan engine be even bigger?" After saying that, Minister Liu was secretly shocked.

Li Tianfeng said: "Minister Liu. The large large channel is larger than the turbofan engine and has a diameter greater than the turbofan 16, and its thrust can reach more than 100,000 pounds. It is mainly used for large military transport aircraft, large long-range strategic bombers, and super-large passenger aircraft."

Minister Liu clicked a little. Then he smiled and shook his head gently and said, "Mr. Li. Even if we have large turbofan engines, we don't have large military transport aircraft. And there are large long-range strategic bombers. Such a big guy, with our current aviation industry strength, is afraid that the journey is still very long."

Zhang Haiping said: "Minister Liu, maybe not, maybe in a few years, we will have these big guys."

Minister Liu shook his head and sighed softly, "Director Zhang, I am not as optimistic as you. Maybe I can't see these big guys appear before I retire."

After saying that, Minister Liu was a little sad. As a senior general in the army, Minister Liu naturally knew the importance of large military transport aircraft and large long-range strategic bombers. But these things were so hard to think about, and it felt a little too far away.

Because of this, even if the Yunbak after the improvement and upgrading could only be equipped with an infantry fighting vehicle, many senior military officials were inexplicably happy. Minister Liu even came here in person and came to see the Yunbak test flight.

Seeing that the large cabin door behind the Yunbak is opening, maybe just to facilitate everyone's visit, Minister Liu said: "For large military transport aircraft and large long-range strategic bombers, we may not be able to expect. Let's go to the cargo hold of the plane to take a look."

So, everyone walked to the rear of the plane and walked into the cargo warehouse from the open hatch door. Minister Liu obviously had seen Yunba's cargo warehouse before, and when he walked in, he obviously felt different.

Minister Liu said: "This warehouse has put a lot of effort into it. Can anyone introduce me to the situation of this Yunbak?"

Zhang Haiping said: "Minister Liu, this is the chief model of Yunbak." After the introduction, Zhang Haiping said: "Minister Wen, you will introduce it to Minister Liu."

Li Tianfeng also knew this Mr. Wen, Wen Hanlin, who was a medium-sized man, wearing glasses and a white short-sleeved shirt, which looked more energetic.

Wen Hanlin introduced: "Minister Liu, the improvement and upgrading of the Yunbak transport aircraft is mainly the upgrade of the engine and cargo hold. The cargo hold has been widened by 61 cm on the original basis, and these two titanium alloy support 30 cm wide throughout the cargo hold are added. Our infantry fighting vehicle can come in through the rear large cabin door and then park in this position..."

Wen Hanping's introduction was quite detailed, because it was in the cargo hold, combined with the actual objects, everyone would understand it as soon as they were told, and Li Tianfeng could naturally hear it very clearly.

The improved Y-8k transport aircraft can be loaded with an infantry combat vehicle or two 105mm light howitzers, and its transportation capacity has been greatly improved, which is also a blessing for the current military.

Everyone looked at the cargo hold, Minister Liu went to the cockpit again, and Li Tianfeng naturally entered the cockpit to take a look. The entire cockpit had little change.

After watching it, the military and others were quite satisfied. Minister Liu even asked: "How is the preparation for this Yunbak test flight? Can you test flight?"

Immediately, a person in charge of the test flight airport replied: "Minister Liu, the preparations have been completed and you can test flights at any time."

Minister Liu waved his hand happily and said, "Okay, then we will conduct a test flight immediately. I want to take a look at our test flight of Yunbak in person."

After more than ten minutes...

Everyone was arranged to be in the test flight observation area, in the open air, so that they could see the plane's flight from a full perspective. Li Tianfeng's interest also came up, looking at the Y-BK transport plane in the distance.

In the eyes of the home, several crew members were neatly and orderly. After entering the plane, the rear cabin door of the plane slowly closed. The command tower kept the radio open with the plane, and several crew members were reporting everything before the flight.

“The engine is normal!”

"The instrument data are normal!"

“…”

After reporting the normal situation, the crew sent a request: "Everything is normal, request to take off!"

In the command room of the tower, there are not only commanders from the test airport, but also many engineering and technical personnel, including designers from Yunbak, craftsmen, and several turbofan 16 engine designers from Tianfeng Technology Company.

When everyone heard the takeoff request, they felt inexplicably excited. Many people looked at each other and saw the excitement in each other's eyes, because everyone knew that the plane was about to undergo a test flight.

Li Tianfeng and others, in the open-air observation area, were all looking at the Yunbak transport plane in the distance. Everyone saw the plane moving slowly and began to drive towards the designated runway.

"Look, everyone, the plane is moving!"

"Where is the tractor? Why didn't you see the tractor? Is this the plane's own startup? Why can't you hear the sound of the engine working?"

Many people are curious because it is difficult to hear the sound of the engine working. You should know that the old turboprop engine of the Y84 in the past had a loud sound when the engine started.

And this time, it was really strange that you could basically not hear the sound of the engine.

When Li Tianfeng heard everyone's voice, he smiled. The turbofan 16 engine was based on ultra-low noise, ultra-low fuel consumption, and ultra-low emissions. In addition, it was a little far from the Yunbak position, and everyone was noisy. It was normal to not hear the engine sound when standing in this position.

In addition, the aircraft is just heading towards the runway, and the engine is far from reaching the takeoff state. Generally speaking, the engine has the greatest power and the greatest noise.

Many people pricked up their ears and basically couldn't hear the sound of the engine. Everyone looked at Li Tianfeng and others. Everyone knew that the turbofan 16 engine was developed by Tianfeng Technology Company.

Zhang Haiping stood next to Li Tianfeng, and Zhang Haiping said: "Mr. Li, at the beginning, I gave everyone a huge surprise. I am becoming more and more interested in this test flight."

Minister Liu next to him also said: "Yes, I almost heard the sound of not working the engine. This is the first time, it's simply unheard of!"

Li Tianfeng said modestly: "Minister Liu, at this time, the engine has not reached the take-off state and the sound is relatively small. In addition, we are a little far away, so there are so many people here, the sound is noisy, and the engine can't be heard. This is normal."

……………………
Chapter completed!