Development of productivity started in 1981

Chapter 182 Optical and Electromagnetic Dual Stealth
On August 1983, 8, Wang Jiankun woke up in the dormitory of the Aircraft Test Center in the base. He opened the curtains and looked at the sky. He found that the base was cloudy as predicted. The sky was covered by thick gray clouds, like a huge gray curtain, weighing heavily on the ground. The clouds were thick and dull, without a single gap. The sunlight could not penetrate at all, making the whole world immersed in darkness.

The buildings of the base looked particularly cold and mysterious under the gloomy sky. The cold walls and silent facilities had blurred outlines under the dim light, as if they had merged into the gray world.

The wind seemed to become sluggish in this depressing atmosphere, only occasionally blowing the dust on the ground, bringing a faint movement. Without the sunshine, everything lost its original color, leaving only a monotonous gray tone, giving people a strong sense of depression and uneasiness, as if the whole world was shrouded in this endless cloudy sky, silent and mysterious.

This weather is very suitable for testing stealth aircraft. In the future, when Wang Jiankun uses this aircraft, he will create haze or clouds in the take-off area in advance, so as to minimize the probability of being discovered by passers-by.

At this time, in a small hangar in the distance, a ground crew formed by new humans was inspecting a small iron-gray plane and adding aviation kerosene and various lubricants.

This aircraft is the radar-stealth and optical-stealth verification aircraft No. 8 manufactured by Wang Jiankun. It also has three engines, but the engine composition is different from that of aircraft No. 3. Both of its engines are scramjet engines, and the middle is a vector turbofan engine. This combination means that the speed will be further increased at high altitudes. According to the simulation test of Zhizi, it can cruise at a speed of Mach 6 when flying at an altitude of more than 3 meters, and the maximum speed can reach Mach 7.

In addition to its extremely fast speed, its take-off and landing method is also very special. It has a large fan in the middle of the fuselage and a small fan on each side of the wing. During takeoff, the fans are driven by electricity to allow the aircraft to take off vertically.

This design is mainly for future convenience of use. Using an electric fan for take-off and landing, the sound will be very small, and almost no sound can be heard 2 kilometers away. It also does not generate a lot of heat and is difficult to be observed by infrared equipment.

The working mode of this verification aircraft is to start the lift fan first, let the aircraft rise to an altitude of about 1 km, and then start the turbofan engine with vector propulsion, which provides greater upward acceleration for the aircraft while allowing the aircraft to gain forward speed. When the aircraft rises to an altitude of about 2 km, the horizontal speed of the aircraft is close to 6 kilometers per hour. At this time, the lift fan can be turned off, and the vector turbofan engine begins to increase power, raising the horizontal speed of the aircraft to about Mach 2. The next step is to turn on the scramjet engine, while continuing to climb the altitude, while accelerating the aircraft again. After the scramjet engine has been working stably for a few seconds, the turbofan engine can be turned off. In order to allow the aircraft to achieve hypersonic speed, the air intake of the turbofan engine will be closed, thereby further reducing air resistance.

Landing is much easier. Depending on the destination, the main thing to consider is the destination's air defense capability. If it is one of the major countries, the scramjet engine must be shut down when approaching the target about 100 kilometers, allowing the aircraft to drop rapidly. When the speed drops to subsonic, the lift fan is turned on to land at the destination at a nearly vertical angle.

However, if it is a country or region with no air defense capabilities, the aircraft can shut down the scramjet engine when it is more than 30 kilometers above the destination, and turn on the vector turbofan engine for short takeoff and landing when the speed drops to Mach 2, or use the lift fan to land when it is several hundred meters close to the ground.

Of course, this plane is only suitable for Wang Jiankun to operate personally. Many of its parts cannot maintain their performance for a long time due to material problems, and Wang Jiankun needs to repair them every time he uses it. And only he can use his superpowers to continuously refuel this plane in the air, allowing it to reach all over the world. Otherwise, ordinary pilots can only fly it for a maximum of 6 kilometers.

By 9 o'clock in the morning, the ground crew had completed the inspection of the No. 8 verification aircraft and the addition of various fuels. The ground crew team leader came to receive instructions from Wang Jiankun.

"Reporting to the commander, the No. 8 verification aircraft has completed the pre-flight inspection and fueling work. Please give instructions."

"Very good, thank you for your hard work. One person will stay to help Xin Yijia get on the plane, and the others can go about their respective business according to the planned plan."

"Yes, for peace~" After shouting the slogan, the team leader went to the ground crew lined up in the distance to issue the next instructions.

At this time, Xin Yijia had already put on the super anti-gravity suit and came to the hangar holding a helmet.

"Reporting to the commander, Xin Yijia is here to report, please give instructions."

"According to the planned schedule, we will conduct ground tests first and then air tests. Go ahead," Wang Jiankun replied.

"Yes, for peace~" Xin Yijia shouted the slogan loudly to Wang Jiankun, and then walked towards the No. 8 verification machine in the distance with firm steps.

He walked to the ground crew waiting at the head of the plane, and the two completed the commands and a series of handovers according to the routine handover requirements. Then the ground crew opened the hidden boarding ladder and escorted Xin Yijia to the cockpit of the plane. Then he also got on the boarding ladder. Standing on the boarding ladder, he checked the connection between Xin Yijia's anti-gravity suit and the aircraft, and then asked Xin Yijia to turn on a few switches to try out the helmet and anti-gravity suit. After confirming that the connection was normal and there was no problem in use, the ground crew carefully came down the boarding ladder and put the ladder into the plane.

At this time, Xin Yijia closed the bubble cockpit from the inside, turned on the vector turbofan engine, and slowly drove the plane out of the hangar.

When they reached the middle of the runway outside, Xin Yijia shut down the turbofan engine and then conducted the rudder surface test as planned.

The aircraft has a delta-wing shape without a vertical tail. The wing roots and wing tips of the tail wing can be opened when needed, and when they are opened, they can generate resistance, which allows the aircraft to turn and change direction. Because it is a hypersonic aircraft, there is no requirement for maneuverability. The open wing area is very small, and the electromagnetic waves reflected when they are opened can be ignored. In addition, some stealth units have been installed on the inside by Wang Jiankun.

After the rudder test was completed, Xinyijia turned on the electrically driven lift fan, and a very sci-fi scene began to appear on the skin of the front center fuselage and both sides of the wings. They began to shrink in a spiral shape, revealing the lift fan in the middle.

At this time, the super graphene battery inside the fuselage was filled with 20 kWh of electricity and began to provide powerful electric energy to the three lift fans through superconducting wires. The fans began to quickly accelerate from a standstill to a speed of 3 revolutions at the moment of power-on. At this time, the fuselage seemed to be lifted up by the graphite thing, and the hydraulic struts of the landing gear were lifted up a little.

As the fan speed continued to increase, the wind force gradually increased, and the aircraft's tires began to slowly leave the ground. Xinyijia continued to increase the wind force as planned, and only let the fan maintain constant power until the aircraft was about 2 meters off the ground.

At this time, observers on the ground began to use equipment to observe the aircraft at different distances. The optical stealth had not been turned on yet. The electromagnetic stealth test was carried out first. Multiple radars set at 1 km, 5 km, 10 km, 20 km and up to 30 km began to closely observe this direction. Wang Jiankun heard data from various radar observation points from time to time. It was found that at this time, when the landing gear was not retracted, the radar 10 kilometers away could observe a reflector equivalent to the size of an eagle, and the radar within 10 kilometers could observe a reflector of about 2 square meters. This result was in line with Wang Jiankun's expectations. In actual use, a place far away from the radar would definitely be chosen.

After hovering at an altitude of 2 meters for 2 minutes, Xin Yijia continued to increase the power of the lift fan, allowing the aircraft to hover at an altitude of 30 meters, and then retracted the landing gear. At this time, all the radars that had been closely observing this direction lost their targets and could not receive any reflected waves. Although they could still see the No. 10 aircraft hovering in the air with the naked eye or telescope within 8 kilometers, there was no signal on the radar screen.

The people responsible for observing the signal at this time were all new humans created by Wang Jiankun. Although they were surprised that the aircraft's radar stealth performance was so good, they were still able to do their job according to the predetermined plan.

Wang Jiankun also received feedback from various observation stations, and the results were not beyond his expectations. The plasma stealth elements he created using his superpowers were indeed powerful. After covering the fuselage with them, they could be invisible to almost all conventional radar bands, which meant that he would be able to travel around the world in the future.

The electromagnetic stealth test has been basically completed, and the next step is to conduct an optical stealth test. Xin Yijia has landed the aircraft on the ground according to the planned plan.

"The optical stealth test begins. All units please switch observation equipment." The leader of the observation team ordered each observation point to carry out optical observation.

Some observation points used telescopes, some used ordinary cameras and video recorders, and some used multi-spectral observation equipment to aim at the No. 8 verification aircraft parked on the runway. At this time, the sky was still overcast and the light was not very good. Wang Jiankun was standing about 1200 meters away from the verification aircraft. His vision was at the level of a special pilot and he could see it clearly, but in an instant, the iron-gray aircraft in front of him disappeared, and the scene at the position he had been paying attention to was almost exactly the same as its background. He rubbed his eyes, and the aircraft in front of him really disappeared.

So he quickly picked up the telescope and searched the area carefully. About 3 minutes later, he observed through the telescope that the location was different from other places, because the reflection on the inside of the landing gear had an obvious color difference from other places. Only then did he see the aircraft in optical stealth state through the telescope.

Because cost and large-scale popularization are not taken into consideration, optical stealth elements are laid in most parts of the landing gear. They cancel the ionizer function and only retain the raised color-changing function. Even the non-deformed parts of the tires are paved. The tires are also gray, the same as most of the ground. In the future, Wang Jiankun will change the color of the tires in the air when using them, so as to maximize the optical stealth of the entire aircraft.

About 10 minutes later, the observation results from various observation points were reported one after another. According to the results, all observation points within 1 km could not see the aircraft with the naked eye, only a limited number of observation points within 5 km could see part of the aircraft through telescopes, and the search time was not short. Beyond 5 km, it can only be seen with special optical observation equipment.

After looking at the data from each observation point, Wang Jiankun was very satisfied with the result, which meant that the optical stealth was mostly successful.

"Xin Yijia, resume hovering in the air and maintain optical stealth."

"receive."

Wang Jiankun put down the telescope and listened carefully to the sounds in the distance. If he didn't listen carefully, he really wouldn't be able to hear the low hum of the fan starting up. He still couldn't see the plane clearly with the naked eye, but Wang Jiankun could vaguely see the plane's tires after they left the ground for a distance.

The plane then rose to a height of 30 meters and the landing gear was retracted. Wang Jiankun could no longer see the verification aircraft. At this time, various observation points reported their observation results one after another. As Wang Jiankun had estimated, most of them only saw the tires and part of the landing gear structure, but when the landing gear was retracted, it could not be observed at all.

At this time, the stealth elements on the fuselage were performing optical stealth and electromagnetic stealth at the same time, and all observation stations lost sight of the aircraft.

"Xin Yijia, the stealth test has come to an end, but continue to maintain stealth and conduct air tests according to Plan No. 1." After Wang Jiankun determined that the stealth performance had met the requirements, he ordered Xin Yijia to carry out air flight tests.

"receive."

"Attention, all teams on Route 1, the test aircraft is about to pass through your area. Please observe according to the predetermined plan and upload the data in real time." Wang Jiankun then issued orders to the various observation points on the route that Plan 1 would pass through.

"Received~"

At this time, an airship in the sky also started ground observation. It was equipped with synthetic aperture radar, conventional radar and optical observation equipment. This was done by Wang Jiankun to test whether the aircraft could be invisible to satellites in space.

After receiving the order, Xin Yijiajia quickly increased the power of the lift fan, making the aircraft rise rapidly. Three minutes later, when the aircraft reached an altitude of 3 km, he started the turbofan engine in the air, and the aircraft began to gain level flight speed. The tail nozzle began to adjust its angle under Xin Yijiajia's control, tilting slightly downward to provide the aircraft with some upward lift. After reaching an altitude of about 1 km, the aircraft's level flight speed reached 2 kilometers per hour. He turned off the fan according to the operation during the simulated flight, and the aircraft skin rotated and popped out in a very sci-fi manner to close the fan mouth.

He lightly stepped on the accelerator, allowing the turbofan engine to gradually increase its power. The plane flew higher and higher, and the speed became faster and faster, quickly increasing from 7 kilometers per hour to 2400 kilometers per hour, and the altitude reached 1.6 meters.

Then he turned on the scramjet engine, and the plane seemed to be pushed forward by a big hand. His body was pressed tightly in the seat. The acceleration at this time reached 10G, which means that the speed of the plane increased by 1 kilometers per hour every second. After about 36 seconds, the speed of the plane reached Mach 100.

He had experienced this speed many times before, but this time was different. The plane was still accelerating under the surging power of the two scramjets, but the acceleration was reduced a little to about 8G. His body was still pressed on the seat, but his hands and feet could move with the help of the brain-computer chip.

When the speed reaches Mach 3, the aircraft can be controlled by voice, and as a new human being, he can control the aircraft directly through the brain-computer chip. This is a set of control modules that Wang Jiankun temporarily added after testing the No. 6 aircraft. This is to take into account the situation where the body is pressed in the seat by acceleration under hypersonic conditions.

Now Xin Yijia is using the brain-computer chip to adjust the aircraft's flight direction while reducing the engine power, because this test only needs to reach a cruising speed of Mach 7, and will not conduct ultra-high-speed flight at Mach 9 for the time being, because that speed will drastically reduce the life of the engine. According to Zhizi's calculations, it can only last about 10 minutes.

Only Wang Jiankun can handle that speed. He can observe the status of the engine in real time and make minor repairs. Moreover, he will rarely use it in the future. The regular Mach 7 cruising speed is enough for him to reach where he wants to go.

At this time, the observation stations along the way and the high-altitude observation airships were unable to find any traces of targets passing through their airspace. Wang Jiankun knew from their replies that this personally customized aircraft was basically successful. Then, as long as Xin Yijiajia made several more flights and obtained more data, he would be able to finalize this aircraft.

Because the flight speed was faster this time, Xin Yijia piloted the No. 8 verification aircraft and circled a large bay over the Bay of Bengal. The edge of the aircraft was almost reaching the eastern territorial waters of India. He could already see the coastline of the Indian peninsula and Sri Lanka at 3 meters in the air.

After returning to the air above the base, he first removed the optical stealth and radar stealth, then used the lift fan to vertically land on the runway of the base from a high altitude. The ground crew then used a cart to tow the aircraft to the hangar for inspection and maintenance.

Wang Jiankun also came to the hangar and used his superpowers to project the stealth aircraft that had been flying at hypersonic speed for a long time into his mind, asking Zhizi to analyze it and see what needed to be modified.

In the following three days, Xin Yijia conducted a flight in the morning and afternoon respectively. In addition to continuing to test its stealth and high-speed performance, it also carried out maneuverability tests at different altitudes and obtained a large amount of data. Fortunately, he is a new human with a brain-computer chip, so a large amount of test data can be preserved intact and brought to the ground. Then Wang Jiankun imported it into the base's supercomputer for him to conduct flight training in the simulation cabin on the ground.

After the No. 6 aircraft landed, he began to use the data for flight training, spending 2 hours every night conducting flight training with a simulation degree of 90% in a cockpit that can provide acceleration and multi-degree-of-freedom rotation.

He was preparing to fly a hypersonic vehicle, although he fainted at the acceleration of 8G at first. However, in order to be able to travel freely around the world in the future, he persisted and used his superpowers to slightly modify his body. Finally, after 8 days, he was able to stay awake in a super anti-gravity suit at an acceleration of 11G.

Everything is ready and he is about to start his hypersonic flight. He has been waiting for this day for a long time.

(Readers, do you want to know where Wang Jiankun will go next in his hypersonic vehicle?)
(End of this chapter)