JIAN40 also needs maintenance, especially after every battle, this is a more squeamish existence than a luxury car, in the end of the plane Tang Shengxian will all the JIAN40, JIAN35, and Straight 20 that can be driven are maintained, and it is not realistic to let him maintain it in the main plane.

After Xiao Ai has integrated the technology and resources of the apocalyptic plane, with the intelligent factory production line, it is not a problem to manufacture a new JIAN40, and when the time comes, you can produce whatever you want, and the research and development of new fighters will continue, but at that time it will not be a sixth-generation fighter, but a seventh-generation fighter aerospace fighter.

This is a fighter that can carry out combat missions in the real sense of the word in the space environment, and it is divided into two modes: manned and unmanned.

But Tang Shengxian can, he has tried almost everything that should be tried on the ground, but he has not been to space yet, and he may also go to the plane of Star Wars in the future, so it is necessary to learn to fight in space in advance.

But that's all for later, and all he has to do now is make his first flight in the main plane.

"Turn on stealth mode in advance"

"The stealth level has been adjusted to A-level."

"Engine self-test."

"Self-test complete."

"Take off."

In a series of prompts, Tang Shengxian drove JIAN40 out of this not-so-dense grove. The tail flame suppression device adjusts the spewed flame to a minimum and the flame color to be transparent, so that no one can see the ghostly aircraft.

Constantly accelerating, pulling up the altitude, to a height of 10,000 meters above Tang Shengxian controlled the plane into horizontal flight mode, although it could not receive GPS signals, but before Tang Shengxian imported the latest satellite map on the earth, although the clarity and accuracy of the apocalyptic plane are much worse, but Tang Shengxian only needs to know where he is according to the satellite map, and the radar on JIAN40 is very strong, Tang Shengxian will walk the whole earth down, The information recorded by the airborne radar is several very detailed maps, including real maps, remote sensing maps, electronic maps, thermal imaging maps and other maps.

JIAN40 can do it, perhaps the limit of what satellites on Earth can detect. I have to say, that's good.

Today, his target is not in the country, in the early stage he mainly explored uninhabited or sparsely populated areas, where if there are components, the possibility of not being integrated by humans is minimal. According to whether the components are fused and classified, the efficiency of detecting the earth is undoubtedly much higher than that of normal detection.

His current mission was to explore a part of the Pacific Ocean, and for the first time he had chosen a relatively simple mission, after all, the discovery of components that had merged with humans was about to cause bloodshed. It's not very good to see red at the beginning.

The feeling of flying in the mission plane is completely different from flying in the main plane, although it is the same operation, but it is undoubtedly more enjoyable. Where is this cool point, Tang Shengxian is not too clear, but it is cool.

The danger in the sky of the main plane is actually more than that of the end of the plane, and there are actually countless dense routes distributed in the seemingly quiet sky, and there are planes that should fly at each altitude, and the planes must fly in strict accordance with the regulations, and they must identify themselves when they fly to the airspace of other countries, and they must apply for how many meters they land and how many meters they rise. These things are very cumbersome, but fortunately, Tang Shengxian doesn't bother with these broken rules at all.

Want to make Tang Shengxian obedient? It's easy to do first you have to spot him on the radar, and secondly you have to keep up with his speed, do you want to stop him with two F-22s? I'm sorry, but the F-22 can only eat farts in front of JIAN40.

This high level of insecurity has found seventeen or eighteen passenger plane flights on the radar, and late-night cheap flights are still quite popular. However, Tang Shengxian did not plan to meet them, and continued to increase the altitude, and the extreme altitude that JIAN40 could reach after entering closed mode exceeded that of the SR-71 Blackbird reconnaissance aircraft, reaching a terrifying 35 kilometers, which had broken through the troposphere and entered the stratosphere.

There is very little water vapor and dust in the stratosphere, and below 30 km, the temperature of the stratosphere is about minus 55 °C, the temperature is basically unchanged, and the temperature increases slightly with altitude in 30 km to 50 km, but it is still not suitable for human survival.

There is an ozone layer here, but the air pressure is extremely low, and the concentration of oxygen is also extremely low, so the plane must be fully enclosed, and the flight suit on Tang Shengxian's body is connected to the aircraft's life support system to pressurize and supply oxygen to him.

He had now climbed to the limit - thirty-five kilometres above sea level. This is a forbidden area for life, and after SR-71 was decommissioned, this sky now belongs to Tang Shengxian alone.

Lockheed Martin has been trying to create a replacement for the SR-71 reconnaissance aircraft since the 60s of the last century, and in 13 years proposed the SR-72 hypersonic unmanned reconnaissance aircraft, according to the plan, the SR-72 will be tested as a prototype in about 18 years, and it will enter service in about 30 years.

The SR-72 hypersonic unmanned reconnaissance aircraft is different from the previous generation of "Blackbird" reconnaissance aircraft, using an unmanned structure, which will use a combination of a turbojet engine and a scramjet engine as power, after the turbojet engine accelerates the aircraft to Mach number 3, the ignition of the scramjet engine continues to accelerate to Mach number 5 to 6.

IT'S VERY GOOD, IT'S FASTER THAN JIAN40, BUT IT'S A PITY THAT THIS IS A DRONE, SO TANG SHENGXIAN DOESN'T LIKE IT, FLYING A PLANE IS FLYING A PLANE, IS IT STILL CALLED FLYING A PLANE IF YOU DON'T SIT ON IT AND DRIVE?

This type of UAV abounds in the apocalyptic plane, the fastest flying Mach number can reach 10, and the technology is already very mature, Tang Shengxian still has dozens of such hypersonic unmanned reconnaissance aircraft in space, but he just doesn't like it, don't ask why, he just doesn't like it.

In the face of a mission that requires Tang Shengxian's personal presence, no matter how fast your drone is, it will be in vain.

On the main plane, the SR-72 only exists on paper. It will take more than ten years to see the finished product. Then Tang Shengxian is now the overlord of this height.

There is no sound in the quiet stratosphere, the starry sky is on the back, there is no haze here, there are no dark clouds, there is only the purest, most brilliant starry sky here, very beautiful, very beautiful.

Similarly, Tang Shengxian couldn't see the situation below, and the clouds below covered the inky sea. However, the radar can still work very well, whether there is an airplane underneath, whether there is a ship under the plane, and how many people on board can all "see" clearly.

This is the charm of technology, and he likes it very much, and the force is too high, and there is no way to do it.

Eight hours for him to patrol a large area, but the spirit is not too nervous, after all, this altitude is only him, no matter how lively it is below, it has nothing to do with him, what he has to do is to control the take-off and landing, the rest of the time is to fly directly with his head covered, and the area that Tang Shengxian explores every time in the unmanned and few areas is long, so that the operation of the plane can be reduced to a minimum. This is also a small way for Tang Shengxian to be "lazy".

At six hours, Tang Shengxian was still motionless, looking very serious, but in fact, he had closed his eyes behind the mask, and he was now closing his eyes to recuperate. The soothing music relaxes Tang Shengxian's brain through the bone conduction headphones, while also blocking out the roar of the aircraft engine.

There are only four words to describe the state he is in - very comfortable.

He's really here to work, but he just needs the system detection radar that binds to him to work properly, and it's safe here.

The patrol was coming to an end, and he had made several trips back and forth between China and the United States so far, and the last hour had to be spent in a conscious state. After switching to the automatic cruise mode and operating it manually, Tang Shengxian began to lower his altitude. The sky is bright, but even under the big sun, there is no shadow of the stealth state JIAN40.

He took off at night when it was close to nine o'clock, and it was four o'clock in the morning, and it was past five o'clock when he got home, and the time should be just in time for his first class, well, class. (To be continued.) )