After a while, Yang Jie and Zhang Kelong pulled down the big red silk on the drone, and the soft red silk slipped off the gray-black fuselage of the drone, and then the entire assembly workshop resounded with warm applause.

After the completion of the off-line ceremony, the huge door of the assembly workshop slowly opened, the heat poured in outside, and the sun was strong outside, and it was also a hot sunny day.

Pulled by the tractor, the drone slowly walked out of the No. 1 assembly workshop and headed towards the airport in the distance outside.

Yang Jie, Zhang Haiping and others also walked out of the No. 1 assembly workshop, got on the factory car that had been prepared outside the workshop and headed towards the airport together.

The airport tower is also the "Shadow" UAV control and command center, and Yang Jie, Zhang Haiping and others entered here together.

The control and command center was very large and spacious, and as soon as everyone entered, the military personnel who had been dispatched to study here collectively stood up and saluted Zhang Haiping.

Yang Jie and Zhang Haiping also returned the salute.

Yang Jie: Their position is condescending, and through the huge glass, they can clearly see the situation around the outer airport.

At the end of the runway in the distance, the "Shadow" was already in position and stopped there.

At this time, dozens of airport ground staff wearing the work clothes of Huake Aviation Technology Company, as well as some engineering and technical personnel, were there to inspect the aircraft, make some preparations, and report the situation to the tower with walkie-talkies.

The "Shadow" drone can be loaded with eight tons of fuel, because there is no bombing mission now, and there is no need to maintain a very high flight speed, nor does it need to make all kinds of fierce maneuvers of fighter jets, this drone is also designed with two built-in magazines, which can be attached to a maximum of two tons of weapons dàn yào, but such a task is still placed in the back to complete.

Chief Engineer Zhang Hong said to Zhang Haiping with some nervousness at this time: "Chief, the next thing to carry out is the hang-up test, and only after the hang-up test is completed can we carry out the test flight." ”

The so-called on-hook test is the test of the engine, starting the engine on the aircraft and testing the working condition of the engine, which is generally one of the tests that must be carried out before the new aircraft takes off.

Zhang Haiping nodded: "Just follow the experimental process you formulated." ”

Ten minutes later, the ground crew reported by radio: "Everything is ready for the on-hook test." ”

Zhang Hong and the others looked at Yang Jie.

Yang Jie nodded, then waved his hand and said, "Start the experiment!"

With Yang Jie's order, the control command center immediately began a series of operations according to the process, and the wireless communication equipment of the command center was connected to the drone control system and the engine was started!

The engine of the Shadow UAV on the runway started smoothly, and the working tail nozzles of the two turbofan engines spewed out a slightly blue flame at this time, and the plane slowly moved on the runway and drove forward along the runway.

"The engine is working fine!"

"All the parameters of the plane are normal!"

“......”

The staff at various positions in the command and control center are reporting on the operation of the various systems of the drone at this time.

Yang Jie looked at the largest display screen in the control and command center, and when he saw a series of parameters displayed on it, his eyes were also full of satisfaction.

Not only Huake Aviation Technology Co., Ltd., but also Yonghan Aviation Technology Co., Ltd. and other subsidiaries of Huaxing Group have formulated a very scientific and reasonable variety of technical test links, and he will never allow the company's senior management to rudely and forcibly change these test links according to their personal will.

The Shadow Drone began to drive slowly on the runway, and then, as it got faster and faster, when it reached take-off speed, it began to slow down again, and finally the plane stopped at the other end of the runway.

This on-hook test was tested three times, and the test was very successful, the engine was working completely normally, and the compatibility with the other subsystems of the aircraft was also very good, and all the parameters were normal.

At this time, Zhang Hong came over to report to Yang Jie and others: "Yang Shao, the hang-up test has passed successfully, do you want to start the flight test?"

Hearing the word test flight, Zhang Haiping and the military personnel all looked at it in unison, and many people were also a little excited to look at the drone at the end of the runway.

Yang Jie is also quite confident in the test flight, because Huake Aviation Technology Co., Ltd. and Huaxia Fokker Co., Ltd. have cooperated to build a set of ground simulation flight test platform, which can maximize the flight control software performance of each aircraft and test the software vulnerabilities.

The flight control software and other subsystems of the Shadow UAV have been tested thousands of times on this platform, and many optimizations have been carried out, and even some extreme flight situations have been tested in various simulation tests.

In the past, the aircraft were basically tested and verified by actual flight, but with such a ground simulation test platform, what engineers need to do is to adjust various parameters, and then combine the actual operation experience of special pilots to maximize the potential of the aircraft.

"Start the test flight test!"

Yang Jie nodded and said loudly.

A few minutes later, the Shadow drone made a small turn on the runway under the control of the command center, the nose was aimed at the long airport runway, everything was ready for takeoff.

"Take off!"

In the command and control room, one of the operators pushed the joystick up.

The plane began to move on the runway, and the speed became faster and faster, and after accelerating for a certain distance, the drone immediately left the ground and flew into the sky, the whole attitude was very stable, and the landing gear under the belly was also retracted.

The entire control and command center immediately burst into warm applause, and everyone applauded.

"Good, good!"

Zhang Haiping also said a little excitedly when he saw this scene.

Although Huake Aviation Technology Company has developed two series of UAVs, the two UAVs are more conventional layouts, and the part of manual intervention is very, and the aerodynamic layout of this shadow UAV is very special, if the flight control software is not good, the UAV is very prone to failure and crash.

The plane flew towards the blue sky, climbed all the way, and soon disappeared, and the plane was no longer visible to the naked eye, but the control command center, one by one, on the display screen, the situation of the plane was very clear.

The "Shadow" UAV, using the Beidou generation navigation system, and equipped with a special transponder, only the radar of the tower can capture the position of the UAV, and at the same time, the various sensors on the UAV fuselage transmit various parameters back through high-speed communication radio.

The plane flew higher and higher, farther and farther, from several thousand meters to tens of thousands of meters, and finally reached an altitude of 20,000 meters.