Tianfeng Technology Company, Test Engineering Center.

In the huge test drive control room, everyone is kept quiet, only the sound of the engine working comes. The LCD screen of the test drive console is showing the various parameters of the test drive.

This is a test drive of 20,000 meters high. This turbofan 21b engine is simulating high-altitude cruise, which is exactly the same as the real situation at a height of 20,000 meters high.

Many people were a little nervous, knowing that this was a real test for the engine, and even Sun Xiaoping was not the only one. They looked at the test data on the display screen from time to time, and then looked at the engine working through the huge glass.

Time passed by minute by minute...

After an hour, Sun Xiaoping quietly breathed a sigh of relief and looked at Qiu Wen'an next to him. There was no longer any worry or nervousness in their eyes, but happiness and relaxation.

Several test runners also began to report loudly, and their voices rang in everyone's ears one by one.

“The engine works fine!”

“Fuel consumption is normal!”

"The vibration is normal!"

“The engine is free of freezing!”

“…”

In the test drive monitoring room, a burst of cheers soon sounded. The young test drive engineers and technicians, as well as the young test drive drivers, jumped up with joy, cheered hard, and shouted.

Sun Xiaoping breathed a long sigh and said, "Old classmate, we have basically succeeded. Our turbofan 21b engine will become an excellent power for the 'Black Ghost' drone."

Qiu Wen'an also said relaxedly: "Yes, our turbofan 21b engine has performed well after a series of test drives, especially the 20,000-meter high-altitude cruising simulation test drive just now, which performed very well. I am also full of confidence in the turbofan 21b."

Sun Xiaoping said: "At altitude of 20,000 meters, dozens of degrees below zero, our turbofan 21b engine has no icing at all, which shows that our anti-icing design is also first-class."

The two of them were chatting with joy and seemed very satisfied with the turbofan 21b engine. In the test drive monitoring room, the test drive technicians also talked about it and praised the turbofan 21b engine.

The engine completed a series of high-altitude simulation test runs. It performed well and successfully passed all the test runs. The engine gradually stopped and was quiet.

Sun Xiaoping waved his hand and said, "Let's go and see our engine that has just completed the test drive."

Qiu Wen'an nodded and walked out side by side with Sun Xiaoping. Everyone followed, walked into the huge high-altitude test drive table, and walked to the turbofan 21b engine.

This engine was lying quietly on the test bench. Sun Xiaoping looked at it with satisfaction and even made an amazing move, directly touching the engine's tail spray cover with his hands.

When the engine is working, hot high-temperature gas ejects from the tail, producing huge thrust. The tail spray part is also hot. If the test run is longer and the light is dim, you can even see the tail spray position red and hot.

This turbofan 21b engine has been tested for several hours. Now, the engine has just stopped and the tail spray position is also hot, like a red soldering iron.

A test runner closest to Sun Xiaoping shouted loudly when he saw this: "Mr. Sun. No!"

But he was still afraid of it. Sun Xiaoping had already touched the engine's tail spray cover with his bare hands. Many people closed their eyes unbearably. A scene of blue smoke rising from his mind, and the scalding sound was heard.

Surprisingly, nothing happened, which surprised everyone. In disbelief, Sun Xiaoping smiled and touched the engine's tail spray cover and said, "It's okay, it's okay, it's just a little warm."

Is it just a little warm?

Everyone didn't believe it. As long as Qiu Wen'an smiled and said nothing, he took two steps forward, reached out and touched the engine's tail spray cover. Qiu Wen said: "Well, it's not bad, it fully meets the design requirements."

Everyone, look at me, I hope you, the performance of Sun Xiaoping and Qiu Wen'an completely subverts everyone's conventional understanding. Everyone can't understand why the engine has been tested for so long, why isn't it hot to spray the outer cover?

Sun Xiaoping glanced at everyone, then smiled and said, "Don't be surprised. One of the differences between the turbofan 21b and the turbofan 21a engine is that the parts of the tail spray have been designed and improved. Just like this tail spray cover, there is a layer of thermal insulation coating on it, so it will not be hot at all."

After hearing what Sun Xiaoping said, several brave men stepped forward and touched the parts of the engine's tail spray with bare hands. Everyone looked surprised, and one of them even said loudly: "Sure enough, it's not hot at all, it's just a little warmth."

Sun Xiaoping nodded and said loudly: "Our 'Black Ghost' drone not only has excellent radar stealth performance, but also excellent infrared stealth. The high-temperature engine in operation is a very obvious infrared source, so we have specially treated the engine to reduce its infrared radiation."

Qiu Wen'an, who was rare to say a few words, also took over the conversation and said: "Our 'Black Ghost' drone, the infrared radiation of the turbofan 21b engine is very small, and its infrared stealth effect is the world's top."

After hearing what Sun Xiaoping and Qiu Wen'an said, the excellent stealth performance and top infrared stealth performance made everyone happy and confident.

………

In the office, Li Tianfeng listened to Sun Xiaoping's special report, the performance of the turbofan 21b engine, a series of test runs, including high-altitude test runs, etc., and Sun Xiaoping made a detailed report.

Li Tianfeng said: "Mr. Sun, our turbofan 21b engine has been successfully developed, and our 'Black Ghost' drone has a qualified power from now on."

Li Tianfeng has a very good understanding of the turbofan 21b engine. Li Tianfeng conducted technical inspections at the beginning of the modification and design of this engine. Now, the test run is successful, Li Tianfeng knows that his drone has excellent power.

Sun Xiaoping said happily: "Boss, the development of the turbofan 21b engine has been successfully developed, and we have completed a relatively large task."

Li Tianfeng nodded, "The development of our 'Black Ghost' drone has also made most of the progress. What I am most looking forward to now is the early production and development of the first 'Black Ghost' prototype."

Sun Xiaoping said: "Boss, all the airborne equipment of drones, such as synthetic aperture radar, high-definition camera equipment, and defensive electronic countermeasures systems, have been successfully developed."

Li Tianfeng said happily: "Although these airborne equipment have high requirements and low technical content, the development work is progressing smoothly and the design and development work is basically completed quickly."

Sun Xiaoping said in surprise: "Boss, this is great. In this way, our first 'Black Ghost' drone is just around the corner!"

Li Tianfeng said happily: "Yes, it shouldn't take long!"

………

Chengnan base, design and R&D center.

The design and development of the avionics system of the "Black Ghost" drone finally came to fruition. This is a major research result after the successful development of the turbofan 21b engine.

Experts from the R&D and Design Center developed a avionics system R&D platform according to Li Tianfeng's instructions. On this platform, the research and development of the "Black Ghost" drone avionics system was completed, and the design of the avionics system was basically completed.

In this design and R&D center, Li Tianfeng also has an office. If you come to the Chengnan base to work, Li Tianfeng will be in this office.

Sitting at the desk, Li Tianfeng looked carefully and carefully at the design drawings of the avionics system that had been completed on the computer.

First, I looked at the design general drawings and schematic drawings, and then looked at a series of other design drawings about avionics systems, and I looked at them for almost a day.

As he got off work, Li Tianfeng got up and rubbed his temples. On the computer, there was a document created by Li Tianfeng. The document was filled with areas that needed improvement and improvement. Li Tianfeng also put forward a lot of suggestions and opinions on the design of this avionics system.

Li Tianfeng's office rubbed his temples on the upper floor of the office building. Li Tianfeng walked to the large floor-to-ceiling window of the office and could see far through the glass.

Looking out, there were huge factories one by one, and there was no limit to the distance. Li Tianfeng estimated that the farthest factory was more than 1,500 meters away from his straight line.

Further away, there is the airport belonging to Tianfeng Technology Company and the supporting facilities of the Chengnan base. The aircraft developed and manufactured here will be tested at the airport.

The airport has been initially constructed and the construction of ancillary facilities is coming to an end. Looking around, you can not only see the two wide and long runways, but also see the completed terminal buildings.

Li Tianfeng thought to himself that it is estimated that in a few months, our "Black Ghost" drone will take off here and fly to the sky...

………

In the golden autumn of October, the fragrance of osmanthus is floating.

The Chengnan production and manufacturing base is filled with the charming fragrance of osmanthus flowers. In the No. 1 assembly factory, some assembly workers are busy.

The first static tester of the "Black Ghost" drone is being assembled. The static tester, as the name suggests, is used to conduct static tests in order to verify the scientificity and rationality of the design and to test the stress conditions of each structural component.

In the assembly factory, the windows were bright and the ground was so smooth that it could shine with people. Li Tianfeng, Zhou Yiding, Lei Yong and others changed into clean cotton shoes. After the wind bath, everyone walked into the assembly factory.

When you walk into the huge factory, the first thing you see is the "Black Ghost" drone that is being assembled. When you see this plane, you can't help but speed up.

………

Two updates today, the first update is here! (To be continued.)
Chapter completed!