"Ladies and gentlemen, our security testing will begin soon, please return to the safety line. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 info The staff at the site are also requested to evacuate the spacecraft take-off area immediately. ”

Due to the large number of people involved, the control tower's command room was completely insufficient, so it was moved to the airstrip area. Huge screens and sound equipment have already been set up on site, and temporary mobile roofs and seats have been prepared for guests.

Chen Wenhao, as the candidate who is most familiar with the spacecraft, is also responsible for on-site command and explanation. After confirming that everyone was in the safe area, Chen Wenhao gave an order, and the two spaceships took off in turn and began the official test.

"Next, both spacecraft will climb to an altitude of 3,500 meters." With Chen Wenhao's explanation, pictures began to appear on the screen at the scene, as if it was a real-time overhead image of the two spacecraft flying.

Although cameras were installed on both ships, due to the stability and clarity of the images, the images on the screens were from the subsequent observation spacecraft. Six high-definition cameras were used to capture images of the surrounding area at the same time, which were then processed by intelligent programs to create a panoramic top-down view of the two spacecraft at the same time on the screen. Technically, it's very simple, similar to the panoramic image function of a car, but the picture is very shocking, after all, compared to driving on the ground, it is difficult to see a real-time scene of several kilometers in the air.

"There is a professional flight navigation database in the spacecraft program, and before the flight, the ground staff will confirm the coordinates of the destination, and then generate the flight path. In the future, after the official commercial use, a fixed approval route will be used. During the flight, the spacecraft will be connected by satellite links to correct its position at any time and maintain a line with the ground control tower. In case of emergency, the ground can also be remotely controlled. ”

The screen at the scene shows the two spacecraft flattening their fuselages after flying at a small elevation angle. In the corner of the screen, parameters such as altitude and speed are also displayed, and at this moment the spacecraft has been flying smoothly in the air at 3400 meters.

"As you can see, the ship has reached the specified altitude. We applied to the air traffic control in advance for the right to use the airspace, and the spacecraft is currently flying in a circular circle according to the plan, with this park as a round point. ”

"Next, the first safety test was carried out immediately, simulating an emergency state in which the engine stopped working."

With Chen Wenhao's instructions, the on-site personnel remotely turned off the engine on the spacecraft. On the screen, the spacecraft being photographed has clearly distanced itself from the test spacecraft, and the picture has changed from an overhead shot of the two spacecraft to a close-up of the test spacecraft.

In the next instant, the test ship paused in the air for a moment visible to the naked eye, and then began to fall down like a stone at a rapid pace. The shape of the spacecraft did not fit into the gliding structure, and it was not possible to slow down even by the altitude and wind.

Everyone at the scene was shocked, and some even let out an exclamation, completely forgetting that this was a safety test.

The spaceship in the frame moves away from the camera at breakneck speed, rapidly becoming smaller. It is clear that a ship descending at a normal speed will clearly not be able to keep up with the speed of free fall.

Just as everyone was nervous, in a matter of seconds, the speed of the test ship slowed down significantly, and the camera gradually caught up with it.

Everyone looked at Chen Wenhao with puzzled eyes.

"We sacrificed a small part of the cabin space, about 500 kilograms of carrying capacity, and added a backup engine to the spacecraft, using a completely independent energy storage and control system, and when the main engine fails, this backup engine automatically intervenes and is responsible for the power of the spacecraft."

The details of the safety transformation plan have been filed with the Civil Aviation Administration before, but considering that many people at the scene did not know the details, Chen Wenhao simply told it from the beginning. At his beckoning, the on-site staff displayed a schematic diagram of the transformation on a public screen.

This is a cross-sectional diagram of the spacecraft, with the pre-retrofit structural components outlined with yellow lines and the new safety components outlined with prominent red lines. It is clear from the picture that the new components are concentrated in the front of the spacecraft, next to the original nose control area, which should be the so-called spare engines and supporting facilities.

Chen Wenhao's explanation continued, "Considering the cost and space and other reasons, the volume, power and other parameters of the standby engine have been reduced, and the supporting energy storage unit has also been streamlined as much as possible, in the full load state, it can only maintain high-speed flight for about ten minutes, but it is enough for the spacecraft to fly away from the population where it may be located and land safely on the ground." By the way, the standby engine can only view status information remotely, not remotely. ”

Someone asked, "There is a spare engine, but what if the jet system fails?" ”

Many people have done some homework before coming, and the structure of the spacecraft itself is not complicated, and the hardware is basically three major parts: the electric drive engine and energy storage system, the jet direction control system, and the shell. What really shocked the market was that there was no other company that could build an electric engine of this power, and it couldn't.

Someone else asked, "What equipment has been added to the top of the ship?" "On the schematic, there is a red line at the top of the ship.

Chen Wenhao smiled and said, "These two questions are actually the same, and the next thing to introduce is the second security measure, which can just answer this question." Everyone will see its effect immediately, and this is also a double insurance for the safety of our spacecraft. ”

In the picture, the spacecraft, which had resumed its smooth flight after the backup engine was activated, suddenly lost power again and fell down again.

Facing everyone's suspicious expressions, Chen Wenhao's face was calm, "Although I can't remotely control the backup engine, I only charged it with 20% of the power before the test, and now it has flown for more than three minutes, which is considered to be an overfulfilled task." ”

"Attention, now!"

As soon as the words fell, the picture suddenly fell to the ground, and it was filled with a huge army green parachute.

"...... this?"

"That's right, this is the safety device attached to the top, a special parachute for high payloads. When there is a problem with the spare engine, of course the chances are very, very small, and we have this insurance. This is the equipment we purchased from the military, which can bear the airdrop of 50-ton main battle tanks, and it is more than enough for spacecraft. ”

Subsequently, with the help of a parachute, the spacecraft successfully landed in a designated area a few kilometers away from the base, and there were already members of the validation team and the company's technicians waiting nearby.

Although they are all public officials, they can experience the important event of a domestic aircraft certification, and it is also worth talking about the qualifications with people in the future.

Director Gu of the Airworthiness Certification Center also had a red face, and came to shake hands with Chen Wenhao, and his usual cold face was gone. For him, it is certainly worth rejoicing to be able to witness a grand event of domestic aircraft, and to be able to draw a strong stroke for his own economic achievements by the way.

"Mr. Chen, congratulations, we will definitely report the test situation to the General Administration as soon as possible, and we will notify you as soon as there is any new news."

"Rejoice and rejoice, I've worked hard to review the experts of the team during this time, don't leave at night, let's celebrate."

and the deputies who took turns to congratulate them one by one, Chen Wenhao was not surprised by this result. This has a head of alien black technology to do the confidence, and I will worry about this, the Kunpeng built by the small workshop has been driven to the moon, and now where is it.

But he was happy. To put it mildly, this black technology is close to public sale, and there will be high profits to buy in the future, so as to support more of his ideas and plans.

To put it mildly, it's nice to change the world!