Many experts were surprised when they saw this flight altitude, and the vast majority of fighter planes in the world could not reach such an altitude, and many air defense missiles could not reach it.

In other words, if the Shadow UAV is intercepted by fighters of other countries, it can fly at an altitude of 20,000 kilometers and escape from the interception of fighters and missile attacks.

However, this possibility is very small, because since this drone is claimed to be a "shadow", it is not so easy to detect.

Because Huaxing Communication Equipment Co., Ltd. has studied a large number of electromagnetic codes of different wavelengths, it has a very deep technical foundation in absorbing materials, and has developed all-radio wave absorbing materials, especially in the face of microwave radar, the absorption efficiency is extremely excellent.

When Wang Yonglin saw this flight altitude, he breathed a long sigh of relief in his heart-

At this altitude, it has fully reached the design ceiling of Hengshan A4, which shows that the high-altitude performance of this engine is very good, and the anti-freezing measures are also very effective.

The height of more than 20,000 meters is enough to be proud, and at this stage, no drone can surpass this height.

The Shadow Drone flew at altitude for more than an hour, which was also a terrifying hour, and many people were worried that the drone would fall off after being frozen.

However, the Shadow UAV still completed the maximum ceiling test, and the flight altitude began to decrease.

However, the airspace where the drone is located has very thick clouds, and it is completely difficult to see the situation on the ground.

The control center then switched infrared and synthetic aperture radar reconnaissance equipment, and the photos were displayed on a large screen after processing the black and white photos by a high-speed computer.

"It's so clear, it's completely clear!"

"yes, there's a clear view of what's going on on the ground!"

Academician Long Gaobo, who is responsible for the research and development of radar imaging technology, is very happy, and after the optimization of the algorithm, the imaging speed of synthetic aperture radar has been significantly improved.

"The parameters of the radar imaging equipment are displayed normally!"

"Infrared detector equipment cooler temperature is normal......"

Hearing the loud voices of these remote controllers, the eyes of the experts showed a strong sense of pride.

The Shadow UAV, after the last test flight, has also improved and perfected the equipment and hardware, because Yang Jie himself is focusing on this matter, so the entire Huaxing Group has been mobilized, so it can achieve such a fast speed.

So far, the last test flight of the drone has been exposed to technical problems and has been improved, and the performance has been more perfect.

After cruising at an altitude of 20,000 meters, the altitude of the aircraft was further reduced, and the drone then circled in a small radius, and the drone hovered almost at an altitude of 8,000 meters.

At this time, there are no clouds under the UAV, and at this time the high-resolution optical camera begins to take pictures of the ground, each photo is 60 million pixels of resolution, and a second can shoot dozens of frames, which requires a very high transmission rate, and now the highest military data link is hundreds of megabytes of transmission speed, it is impossible to transmit such a large amount of data to the control and command center in tens of milliseconds.

Therefore, the Shadow UAV is naturally equipped with the transceiver terminal of the Starlink network, which solves the problem of large-capacity data transmission.

The control center then tracked a fishing boat on the coastal water, and several fishermen on the boat could be clearly seen casting nets to catch fish, and the approximate height and gender of the fishermen could be clearly distinguished from different angles.

The infrared and synthetic aperture radar fusion technology clearly shows some of the conditions inside the ship's cabin.

Seeing such a photo, these military representatives were wide-eyed-

Such technology is amazing!

After a series of tests, the Shadow UAV fully verified the performance of each airborne equipment, and finally successfully returned home at nightfall.

When the drone landed on the runway and stopped, the control center suddenly burst into an incomparably warm applause, and the military representatives and these experts and academicians took the initiative to applaud excitedly.

In the evening, the Shadow UAV, which had completed its second test flight, entered the assembly workshop again and quietly parked on the smooth ground of the assembly workshop.

At this time, this group of technical experts and academicians also personally surrounded the plane to observe carefully, while engineers and technicians were inspecting and maintaining the aircraft.

The second test flight was better than the first, and there were many fewer problems exposed, but not without problems, there were a few minor problems, and everyone is working on the improvement of the aircraft.

The rudder motor and de-icing device on the aircraft were removed at this time, and several engineers and technicians were carefully inspecting them.

Yang Jie, Wang Yonglin, Zhang Hong and others personally watched the drone, and Yang Jie also personally watched several small problems exposed by the second test flight.

"Our Shadow Drone is getting more and more stable, getting better and better, there are fewer and fewer problems, and everyone is doing a very good job!"

Yang Jie said with satisfaction.

Zhang Hong said with a happy face: "Yang Shao, I believe that it will not be long before we can complete a series of flight tests and engineering verifications." ”

Li Jianwu said: "Yang Shao, the performance of our drone is getting better and better, and I am more and more confident in the upcoming transcontinental aircraft." ”

For this transcontinental flight, Yang Jie is also full of expectations, he said: "This transcontinental flight is a major test for our UAV, everyone must do a meticulous job." ”

Zhang Hong and others are very confident in this, this shadow drone has taken out all the most advanced technology accumulated by Huaxing Group at this stage, according to the engineering and technical strength of Huaxing Group Company, the technical strength of the shadow drone is very close to the overall technical strength of the Global Hawk, and even in communication technology is to exceed a lot, Yang Jie is very relieved to such a UAV.

The next day, Huake Aviation Technology Company also held a celebration banquet and chartered a floor of the hotel.

Yang Jie also took Bai Bing and his son Yang Ruilin's family of three to attend the celebration banquet.

During this time, Yang Jie has basically stayed in Hongdu, and Bai Bing has also brought his son over.

During the banquet, Yang Jie also expressed his gratitude to the military representatives and these academicians and experts with wine, and these people naturally did not dare to take a shelf, so they all got up and talked to him.

Zhang Kelong and others also attended the dinner, and they also laughed and teased the little guy who was still in the crib, the little guy's big and bright eyes were rolling on Zhang Kelong's face, and his mouth was babbling.

"At first glance, he has inherited the genes of your two geniuses, and this kid must be too smart when he grows up!"

Zhang Kelong amused the little guy, and then said to Yang Jie and Bai Bing with a smile.

Yang Jie also laughed, with a smug face.