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Chapter 1249 test flight

The engine of the flying saucer car is under the flying saucer. When the flying saucer just takes off, it rises vertically. Under the flying saucer car, there is a powerful nuclear fusion engine. Although the engine uses nuclear fusion technology, its appearance is similar to that of a jet fighter engine.

Almost the same, the vortex jet engine is still used. Because only an engine with this shape can provide powerful power to the aircraft.

On both sides of the engine installed below the flying saucer, there are two vortex nozzles. These two nozzles are the devices that provide power to the flying saucer car. Of course, these two nozzles can also change the flight direction of the flying saucer car.

Just like if the flying saucer car wants to rise vertically now, these two nozzles that can rotate up, down, left and right can change the flying direction of the flying saucer car, allowing the flying saucer car to rise vertically directly.

The reason why the flying saucer car designed by Zhao Zhongyao also uses this kind of jet engine is because in the development of high-power aircraft engines, once the speed of sound is to be exceeded, jet engines can only be used. And the traditional piston engine

The engine simply cannot make the aircraft go faster than the speed of sound.

However, ordinary fuel-type turbojet engines can only make the aircraft reach 2-3 times the speed of sound. This can be said to be a limit. To further increase the speed of the aircraft, more powerful nuclear engines can only be used.

.

Although nuclear fission engines can also produce a lot of power, Zhao Zhongyao knows that only nuclear fusion engines can produce more powerful thrust. They can make the aircraft reach ten times or even dozens of times the speed of sound.

In fact, the power of the flying saucer car developed by Zhao Zhongyao is not particularly high. After all, this can only be regarded as an experimental flying saucer. In the future, some more advanced flying saucers will be developed. This flying saucer is only

It can be regarded as an experimental product.

For such a new thing, everyone is very curious, but also a little worried. After all, being a test pilot of an aircraft certainly involves a lot of risks. Just like Zhao Zhongyao is doing now, he has to drive himself

If a flying saucer car flies, there will definitely be some danger.

But Zhao Zhongyao is also very optimistic about the flying saucer car he developed. He knows that this flying saucer car will be able to fly smoothly at high altitudes without any problems.

Now the flying saucer car has slowly taken off. At the beginning, the flying saucer just flew directly to high altitude. At this time, it is not possible to use too fast speed. After all, the flying saucer is straw hat-shaped. If it takes off directly vertically, it will encounter resistance.

It's very big.

If you increase the speed very quickly at this time, you will be in trouble. Because everyone knows that when the aircraft is flying in the air, when the speed is close to the speed of sound, it will encounter a sound barrier problem.

The so-called sound barrier is also called the sound barrier. This is because when the flying speed of a straight-wing aircraft with a large aspect ratio approaches the speed of sound, the drag will increase sharply, the control performance will deteriorate, and the flight speed will not increase.

Therefore, people once thought that the speed of sound was an insurmountable obstacle for aircraft speed, hence the name.

Before humans developed supersonic aircraft, it was felt that the sound barrier was impossible to surpass. It was felt that it was impossible for human aircraft to exceed the speed of sound.

However, later, people discovered in practice that when the flight speed reaches nine-tenths of the speed of sound, that is, the air speed of Mach number m0.9 is about 950 kilometers per hour, the speed of the local airflow may reach the speed of sound, generating local shock waves, thereby causing the aerodynamics to

The resistance increases dramatically. To further increase the speed, the engine needs to have greater thrust.

What's more serious is that the shock wave can make the airflow flowing through the surface of the wing and fuselage very turbulent, causing the aircraft to shake violently and making control very difficult. At the same time, the wings will sink and the nose of the aircraft will drop; if

At this time, the aircraft is climbing, and the fuselage will suddenly tilt up automatically.

These annoying symptoms may cause the plane to crash. This is the so-called "sound barrier" problem. Since the transmission speed of sound waves is limited, a moving sound source can catch up with the sound waves it emits.

When the speed of an object increases to the same speed as the speed of sound, sound waves begin to accumulate in front of the object. If the object has enough acceleration, it can break through this unstable sound wave barrier and rush to the front of the sound, that is, break through the sound barrier.

An object traveling at supersonic speed will continue to generate stable pressure waves in front of it. When the object advances towards the observer, the observer will not hear the sound; after the object passes, the waves generated are transmitted towards the ground, and the waves are

The pressure difference will form an audible effect, which is a sonic boom. When the aircraft's flying speed is lower than the speed of sound, the air in contact with the aircraft acts like a "communicator", "notifying" the upcoming encounter ahead at the speed of transmitting sound.

The air from the planes causes them to "give way".

But when the speed of the plane exceeds the speed of sound, the air in front of the plane is compressed tightly because there is no time to escape, and it accumulates into a thin layer of shock waves. The air behind the shock wave is compressed, causing the pressure to suddenly rise.

This prevents the aircraft from further accelerating and may cause the wings and tail to vibrate violently and cause an explosion.

The sound barrier is not only sound waves, but also resistance from the air. When a flying object is flying close to Mach 1 (the speed of sound unit), the air rushing from the front cannot spread through the fuselage as usual, so the gas accumulates

When it reaches the surroundings of the flying object, great pressure is generated, which also triggers an invisible air vortex, commonly known as the "death vortex". This is also called the sound barrier. If the fuselage is not specially reinforced, it will be shaken instantly.

into pieces.

Therefore, after humans understand these principles, they will know how to break the sound barrier. The first step is to develop very strong materials to make the wings and shell of the aircraft. Also, the wings of the aircraft must be

It must be very thin. Because only if the wing is thinner, the resistance generated when the air flows rapidly over the wing will be relatively reduced.

If the wing is very thick, it will obviously produce strong resistance to the wing when the aircraft flies at high speed. In this case, if the material of the wing itself is not very strong, it will easily fly at high speed and the speed is close to

At the speed of sound, the tragedy of sinking into the sand will occur.

Therefore, the materials used in the supersonic fighter jets developed by humans are all super expensive alloy materials. It can be said that they are much better than the materials used in any ground transportation. Even the materials used in some luxury cars are

It is simply not comparable to the materials used in fighter jets.

Generally speaking, new fighter jets are developed using the latest high-strength aluminum alloys, titanium alloys, magnesium alloys and other high-tech materials.

For supersonic aircraft, in terms of materials, they must have both high strength and high flexibility. Materials must have both before they can be used on supersonic aircraft.

It can be said that flexible materials are very important in supersonic aircraft. Because when the aircraft is flying at high speed, it will deform the wings or fuselage due to the huge pressure of the air. In this case, if

If the wings of an aircraft can actively deform when encountering huge resistance, it will obviously be very beneficial to the safety of the aircraft itself.

This is like when doing Tai Chi, you can use softness to overcome hardness. In terms of aircraft development technology, this technology is now called skin technology. To understand it vividly, it means that the aircraft is covered with a layer of skin, which makes the appearance of the aircraft

More flexible.

Of course, in order for the aircraft to exceed the speed of sound, the shape of the aircraft is also very important. It must have a streamlined fuselage. And the wings must be swept wings. Because only swept wings can greatly reduce the speed of the aircraft.

Drag during high-speed flight.

Also, the size of an aircraft flying at supersonic speeds should not be too large. After all, the larger the size, the greater the resistance during flight. In this way, when flying at high speed, the danger of sound barriers will be greater.

Therefore, the overall size of any fighter jet that can fly at high speed is not very large. It is generally only more than ten meters in length, and its wingspan generally does not exceed ten meters. Only such a compact streamlined fuselage, coupled with the rear

The shape of the swept wings prevents the aircraft from crashing and killing people when flying at high speeds.

Although at the beginning, humans made a lot of efforts and paid a huge price to break the sound barrier, after decades of development, humans have gained a lot of experience and lessons in breaking the sound barrier. Human beings can now easily

Master this supersonic technology.

All of this is of course not a problem at all for a genius scientist like Zhao Zhongyao.

The appearance of the flying saucer car currently developed by Zhao Zhongyao is like a straw hat. The thickness of the entire circular wing is only ten centimeters. The exterior glass window of the cockpit above is made of the most advanced high-strength glass. It can make the flying saucer

When a car flies at extremely high speeds, there is no need to worry about the glass windows breaking.

When developing the fuselage and wings of the flying saucer car, Zhao Zhongyao also used a large amount of new materials such as biosteel that he had developed before. This material is not only very hard, but also has very good toughness.

It can be said that the new biosteel material developed by Zhao Zhongyao already possesses the high-tech skin technology used on modern sixth-generation fighters.

With these new materials and powerful nuclear fusion engines, Zhao Zhongyao can certainly develop a very advanced flying saucer car.

Zhao Zhongyao now started to drive the flying saucer car high into the sky. The main reason why he wanted to try driving the flying saucer car himself was because other people did not understand the flying saucer car he developed.

Because this flying saucer car is not an ordinary car. It cannot even be regarded as an ordinary airplane. Although it is called a flying saucer car, in fact, it is not a car in the eyes of ordinary people at all. It can only be regarded as a new type of aircraft.

Human aircraft.

The reason why Zhao Zhongyao wants to drive this flying saucer car for a test flight now is because he is the only one who knows this flying saucer car best. Only by testing it himself can the danger be minimized. If someone else is allowed to test the flying saucer car, then

It must be very dangerous, because others don't know much about this flying saucer car.

Even these scientific and technical personnel of the "Feitian Group" who worked with Zhao Zhongyao to personally develop this flying saucer car. They only developed it according to the drawings designed by Zhao Zhongyao. And what they did to this flying saucer car

It's not very detailed.

Not to mention ordinary technicians, even Cheng Yu, the top leader of the 'Feitian Group' and Zhao Zhongyao's right-hand man, didn't know much about the flying saucer car in front of him.

Now if an ordinary technician is allowed to test fly this flying saucer car, it will be very dangerous. Not to mention anything else, just this lifting action, if you don't understand the performance of this flying saucer, there are still some

Based on the principle of aerodynamics, as soon as the flying saucer rises, it may encounter a sound barrier, and then it will be dangerous.

Because the shape of the flying saucer is a straw hat shape. When the flying saucer rises vertically, it will generate a lot of resistance. At this time, if you do not control the speed and directly fly at high speed, it will of course be very dangerous.

Imagine that the flying saucer uses a super-powerful nuclear fusion engine. If you don't control the speed when rising vertically, a sound barrier will soon occur. In this case, it is equivalent to making the flying saucer car directly hit a wall.

.

Just imagine what the result will be! Even if the material used to develop the flying saucer car is very strong and will not shatter the flying saucer car, it may cause the flying saucer car to be severely deformed, and the original straw hat may become twisted!

Therefore, Zhao Zhongyao must personally test fly this flying saucer car before he can rest assured. If someone else is allowed to test fly it, he will certainly not be at ease.

Although Zhao Zhongyao already has some understanding of the performance of this flying saucer car, before there is a formal test flight, all its technical parameters can only be in a theoretical stage. Only after a real test flight can we know,

Are some of the technical parameters of this flying saucer car consistent with the theory?

The flying saucer car designed by Zhao Zhongyao can fly at a maximum speed of Mach 10, which means it can reach an approximate speed of 10,000 kilometers per hour. But this is only a theoretical speed, and how much it can actually reach can only be known through experiments.

There is also the turning radius of the flying saucer car. The theoretical technical parameters designed by Zhao Zhongyao are no more than five meters. In other words, it almost turns on the spot and does not need a flight arc at all. It can turn at right angles. Because the flying saucer car itself

The width is only five meters!

Now Zhao Zhongyao was driving his beloved flying saucer car and began to rise into the sky. He kept looking at the flying altitude and flying speed. Now the flying height of the flying saucer has reached one thousand meters, and the flying speed has reached 700 meters.
Chapter completed!
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