The arj21 regional passenger plane successfully completed the assembly of the turbofan 17 engine. These two engines were successfully installed on the plane and can be tested.

Before the test flight, COMAC's publicity work was very popular. This was a commercial aircraft, not a military aircraft. All kinds of publicity were very popular in major media. Before the test flights began, many people knew that the arj21 regional passenger plane was equipped with a new engine.

There were even warm comments on the Internet, and there were many reports about the arj21 regional passenger plane. This time, COMAC used this to promote it, which really attracted a lot of attention and completely made a large-scale free advertising.

"Our arj21 regional passenger plane will be equipped with a new engine for test flights. I'm really looking forward to it!"

"Yes, it's still the fourth-generation turbofan engine produced in China, with the engine code name Turbofan 17, manufactured by Tianfeng Technology Company!"

"This is a real domestic regional passenger plane. The engines used in the past were imported. The engines used in the arj21 passenger plane were not considered a real domestic aircraft."

"Yes, only by installing domestic engines can this be considered a real domestic aircraft."

“…”

The hot discussion on the Internet is very popular. Not only are there many beautiful color pictures of the arj21 regional passenger plane, but there are also some close-ups of the aircraft engine.

Overall, this arj21 regional passenger plane is not much different from the previous arj21. The only difference is the engine. Therefore, many pictures on the Internet are partial close-ups of the engine.

"This is the turbofan 17 engine, the engine looks very beautiful!"

“Yes very beautiful!”

“…”

When the engine is installed on the plane, the first thing you see is the fan part. The beautiful fan part is very impactful and has a visual impact.

Li Tianfeng naturally knew about such a large-scale enthusiastic reaction. He was logging in a famous domestic website and reading the report on the test flight of the arj21 regional passenger plane.

"Dong, dun, dun!"

After the knock on the door, Liu Wei came in happily and said happily: "Boss, COMAC has sent a formal invitation letter and will conduct a grand test flight the day after tomorrow. Invite us to participate."

Li Tianfeng smiled: "This test flight of the arj21 regional passenger plane is also a grand event and it is also the first flight of our turbofan 17 engine. We will definitely participate."

Liu Wei nodded and said, "Boss, this time the test flight. COMAC attaches great importance to it and the publicity is also very good. I heard that more than a thousand people will watch it during the test flight."

Li Tianfeng clicked a little and could imagine the popularity of the test flight. This test flight was considered the first flight, and the first flight of the arj21 regional passenger plane was equipped with the turbofan 17 engine.

Install two turbofan 17 engines. The arj21 regional passenger plane will conduct a series of test flights, including a total of 57 routes to test the route adaptability of the aircraft and the turbofan 17 engine. In addition to the airworthiness type, it will also verify the economic benefits of the aircraft and the high temperature environment requirements of the plateau in the west.

The most significant economic benefits are ultra-low fuel consumption, which will conduct a full test flight verification of the turbofan 17 engine, whether it is really as designed, and it has ultra-low fuel consumption and significant economic benefits.

Li Tianfeng said: "Mr. Liu, this is also the first flight of our turbofan 17 engine. Let's go and have a good look at this first flight."

Upon hearing this, Liu Wei nodded happily. Liu Wei could understand what Li Tianfeng meant, that is, to go for more people and look as grand as possible.

Liu Wei said: "Boss, I will arrange the matter."

Li Tianfeng nodded: "Let's book the plane tomorrow, we will leave tomorrow. I can easily watch the first flight of our turbofan 17 engine the day after tomorrow."

Liu Wei nodded and left Li Tianfeng's office happily.

………

Donghai City, an airport.

This place is extremely lively today, and the visiting area is even more crowded. Judging from the number of people, there are more than one thousand people. Li Tianfeng led everyone from Tianfeng Technology Company to also be in the visiting area. It is a very good location, VIP area.

Xu Lilong next to him said: "Boss, I heard that this test flight, COMAC invited many people from the aviation industry, a large number of media people, as well as many people from domestic and foreign airlines."

Li Tianfeng smiled and said, "Ma Delong is very business-minded and has made full use of this great opportunity. I estimate that after this test flight, the orders for the arj21 regional passenger plane will increase a lot."

Xu Lilong said happily: "Boss, the increase in orders for arj21 regional passenger plane is a good thing for us. It is estimated that COMAC will place an order for turbofan 17 engines for us."

Upon hearing this, Li Tianfeng also smiled happily, and this is the case.

It was nine o'clock in the morning, and after a brief ceremony, the test flight was about to begin. The arj21 passenger plane that was preparing for the test flight also slowly drove over and began to enter the runway.

"The plane is here, come here, everyone see!"

When they saw this plane, many people shouted excitedly, and the media reporters even kept taking photos of the plane with cameras.

Everyone's eyes are focused on this aircraft. It has to be said that the arj21 regional passenger aircraft is designed very beautifully. It adopts a five-seater double-circular sectional fuselage with single wings, high flat tail, front three-point type can retract the landing gear, and tail hoisting two engine layouts.

In addition, the arj21 adopts many professional and comprehensive optimization designs, with a large sweep angle supercritical wings and winglets integrated with the wing, which improves the aircraft's cruising performance within the designed cruising weight range; the efficient lifting device allows the arj21 aircraft to have excellent low-speed performance;

At the same time, the application of supercritical wings increases the relative thickness of the wing, thereby reducing the weight of the wing structure and increasing the wing fuel tank capacity. Using this technology not only improves the flight quality, but also reduces fuel consumption, increases range capability and commercial capacity.

Today, the arj21 passenger plane that was tested to fly is white, and it looks very beautiful with the festive bright red and beautiful wings.

Li Tianfeng looked at the plane and nodded. Regardless of the comprehensive performance of the plane, the appearance design of the plane is very good just by looking at it.

In everyone's eyes, the plane slowly entered the runway, and the engine's working sound was very stable and very slight.

The engine at this time should be in a slow state. The so-called slow state is the minimum power state of the engine. The engine speed is 25% to 30% of the maximum speed and the power is 3% to 5% of the maximum thrust. The current two turbofan 17 engines are in a slow state.

The sound was very light and very stable. If you hadn't seen the plane start to enter the reservation, the people in the entire visiting area would have gradually calmed down and you wouldn't be able to hear the sound of the engine working.

"The plane is so stable and quiet!"

"Yes! If you don't listen carefully, you can't hear the sound of the engine working."

“It must be very comfortable to ride a plane like this!”

Seeing the plane entering the designated runway, the originally quiet visiting area gradually became lively again. Everyone was very enthusiastic about it and discussed the plane, especially the stability and quietness that had just been shown.

The plane entered the runway and waited on the runway for a few minutes. The plane started to move again and began to taxi on the runway.

"Look! The plane has started to taxi, and it seems that it is about to take off!"

Many people shouted excitedly again, their tone full of excitement, and the engine gradually increased its power from a slow train state to a takeoff state.

The takeoff state is generally also the maximum power state. The engine sounds are obviously louder, the engine speed also reaches the maximum speed, the thrust rises sharply, and the aircraft accelerates rapidly.

The engine reached its maximum power state and the sound was still stable. When Li Tianfeng heard the sound from the engine working, he nodded and said in his heart that the noise of the engine was not very high, but among similar engines, it was relatively small.

"The plane has accelerated and is ready to take off!"

"The aircraft accelerates so beautifully, but it's still very smooth. The engine sounds so nice!"

"Yes! And the sound is not loud, it is very stable, and it sounds very powerful!"

The ultra-low noise was fully reflected at this moment, and many people were surprised, especially those from airlines. When they saw this scene and heard the sound of the two engines working, many people looked at each other and nodded gently.

The plane accelerated and became faster and faster. Then, in the eyes of everyone, the plane left the runway and flew towards the blue sky. Gradually, it went away, and the plane became smaller and smaller in everyone's eyes.

Successfully flew into the blue sky!

Perfect performance!

Seeing this scene, thousands of people applauded in the entire viewing area, and the thunderous applause continued for a long time. Everyone from Tianfeng Technology Company, including Li Tianfeng, looked happy and happy.

Sun Xiaoping even said: "Boss, our turbofan 17 engine has successfully flew for the first time!"

Li Tianfeng nodded vigorously and said, "Yes, the first flight was successful!"

The plane gradually faded away and finally disappeared completely in everyone's eyes. Madron walked up to the rostrum with agility, and said happily in front of the microphone: "Gentlemen, ladies..."

Madelong's words were filled with deep joy, and this test flight was perfect. The arj21 passenger plane used to be equipped with imported engines and also conducted such test flights at the beginning of its development. However, in the impression of Madelong, the arj21 passenger plane did not perform as smoothly and smoothly as the test flight just now.

Ma Delong's speech lasted for more than ten minutes, and then Ma Delong announced that the test flight was a complete success!

Thunderous applause sounded again, and today Ma Delong became the focus. After his speech, amid the applause, Ma Delong quickly walked off the rostrum and walked straight towards Li Tianfeng.

…………

Today's third update, the third update is here!

Please ask everyone for monthly tickets and support for recommended tickets! (To be continued)
Chapter completed!