Chapter 1072: Airplane

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Nangong Zhi's inquiry was heard by Zhang Hao, but he didn't look back. Mainly...you didn’t ask me directly.
The target of Nangong Zhi's inquiry is the narrator arranged by the Ocean Group. These are actually graduate students during the internship period.
The narrator simply explained: "In fact, the star cannon weapon system is already storing energy.
On the other hand, because of the power of the Star Cannon, its recoil is also great. The effect of force is mutual, the star cannon and the projectile in the static state bear the same force.
Therefore, during the launch, the body of the starry sky cannon will retreat; and this will undoubtedly cause the power of the shell to not reach its maximum.
Once the body of the cannon recedes, a considerable part of the energy will be lost. In addition, the actual effective length of the barrel will be shortened, the acceleration time of the projectile will be insufficient, and the firing rate will be reduced.
Under such circumstances, accelerating ahead of time will allow the cannon body to have a certain speed and energy, which will counteract the reaction force during launch, which can maximize the power of the starry sky cannon.
In addition, if it is launched in a stationary state, the body of the cannon will retreat due to recoil, which will cause its orbiting speed to be lower than the minimum speed of the orbit and be pulled back to the ground by the gravity of the planet.
The star cannon body is heavy and requires a long acceleration time. Therefore, in order to prevent uncontrollable situations, you can only accelerate ahead of time. "
Everyone listened and nodded one after another. Even Nangong Zhi had to nod. Although these things are easy to understand, they cannot be ignored. Sometimes it is often because of a small oversight that led to the failure of the entire battle.
After the rail gun accelerated for about 17 minutes, the voice of the person in charge in front of Huang Mingshan in the observation room was heard: "100% energy storage, ready to launch!"
At the next moment, everyone saw the rail gun that was accelerating in space and was gradually trying to escape the gravity of the planet. It suddenly stopped. The rear beautiful, light blue plasma engine tail flame suddenly shivered and confused.
As for the front of the giant artillery, nothing could be seen. There is no such flame when the artillery fires.
Quietly, there was no sound in space. If the body of the giant cannon suddenly stopped, I am afraid that no one would know that the star cannon had just completed its first launch.
A small launch of 160 high-power nuclear islands completed a launch in 17 minutes, and everyone hopes to see how powerful it is. It is a pity that this rail gun directly wants to fly out of the galaxy. With such a powerful shell, the Ocean Group will not use it to attack the planets in the galaxy as long as its brain is still normal.
Special rail cannon shells weighing up to 50 kilograms, designed to fly at a speed of 500 kilometers per second!
To understand the speed of 500 kilometers per second, you can follow several astronomical figures of the current Ocean Group:
The speed of the first universe, that is, the speed of gravitation around the planet, is 25.3 kilometers per second;
The second cosmic speed, that is, the speed to get rid of Uranus, is about 36 kilometers per second;
The revolution speed of Tianyuanxing is 30 kilometers per second;
The third cosmic speed, the spacecraft emitted from the orbit of Uranus, has a ‘minimum speed’ of 16.7 kilometers per second. It should be noted that the so-called minimum speed is added to the revolution speed of Uranus itself. In other words, its absolute speed is ‘30+16.7=46.7’ kilometers per second.
This is still in the orbit of Uranus. If it is near Venus, or even the Sun, the speed will be higher.
Then the sun's revolution speed is 250 kilometers per second.
It is the speed of the fourth universe, with a minimum of 120 kilometers; the speed of the sun itself is 370 kilometers per second.
That is to say, a rail cannon projectile with a speed of 500 kilometers per second can theoretically fly out of a large galaxy! As long as it is launched, do not oppose the Sun's revolution speed.
At a speed of 500 kilometers, it already has an initial interstellar strike capability. Of course, the vast sky, with a speed of 500 kilometers per second, wants to span a light-year distance, that is, the diameter of the gravitational influence range of the star system, but it takes six hundred years!
For six hundred years, the goal has long been unknown where to go.
However, it is perfectly feasible to attack targets such as the planet. The rules of planetary motion can be calculated.
However, regardless of the power of this rail cannon, its launch effect is indeed invisible. Even the eyes of the Master Kongxu could not capture small objects with a speed of 500 kilometers per second.
Soon Huang Mingshan reported to Zhang Hao: The launch was successful. Next, we will briefly check and then launch nine times in a row; after nine times, we will carry out major overhaul. The maintenance process is expected to take a month.
The first star cannon is still experimental, so it is necessary to repeatedly check, verify, collect data and accumulate experience.
After a little inspection, an hour later, the giant cannon fired for the second time. The direction remained the same, and it was launched in the direction of the Red River Civilization.
By the way, since the launch from Uranus to the location of the Red River Civilization is inside a large galaxy, the movement of stars can be basically ignored. It can be seen as a relatively static system.
That is to say, the shell speed of the giant cannon in the sky will fly at 500 kilometers per second in the void. However, the Red River civilization is closer to the core of the big galaxy. If the shells can fly, the speed will increase to 800 kilometers per second.
At a distance of 700 light years, it is estimated that it will take 3300 years for the shells to fly over-if the shells do not encounter obstacles along the way.
From this point, the advantages of the rail gun can also be seen. If it is laser, particle technology, etc., if the flying distance is far, basically it will be dispersed. However, the rail gun can continue to fly until it meets the one destined to meet...... Unlucky~
Since then, the test of the starry sky cannon, Zhang Hao and others no longer pay attention. It's been a year since I was in trouble, but when I finally observed it, there was no aura. What a good visual feast.
The scene of the laser launching spaceship on the ground is the most spectacular. A beam of light plunges straight into the sky, extending to the end of sight. Even if it breaks through the atmosphere, because the laser contains a large number of particles, the laser still emits a faint orange glow.
From a distance, it looks like a sky pillar directly pushing the spacecraft from the ground into space.
The visit is over, but the test is still going on. Compared to those who only want to see grand scenes, there are also a few people who pay more attention to the inner.
This invisible and powerful weapon really brings a sense of security to everyone. Although I don't know what kind of technology such a technology belongs to, it belongs to the Red River civilization.
However, on the ground, the Ocean Group used the remains of the Liulidao spacecraft to check the power of the rail gun. At that time, the maximum speed of the ground rail gun was "but" 100 times the speed of sound, which is 50 kilometers per second. But such a rail gun can easily penetrate the outer shell of the Liulidao spaceship.
Well, a speed of 500 kilometers per second should be enough to penetrate the spacecraft of the Red River civilization.
However, Zhang Hao was cautious. After all, there have been some miracles in the technology of the Red River Civilization in the past hundreds of thousands of years, or even two or three hundred thousand years. For example, create nuclear-grade materials!
Previously, the spaceship material of Xuanhuang civilization was atomic, but in fact it can be regarded as a diamond-like material with perfect structure and artificially reinforced.
But this material is ultimately an atomic material; the atom itself is very'empty'.
However, if it is a nuclear-grade material, such as the material of the'droplet' mentioned in the world novel, it will initially reach the point of being indestructible.
Although Zhang Hao also felt that the Red River civilization should be difficult to achieve. After all, whether it is the Red River Civilization or the Xuanhuang Civilization, it is a practice civilization. Most of its own explorations of the material world are simple.
But this so-called "shallow taste" is also aimed at advanced civilizations.
Toys of children of advanced civilizations, placed on ordinary planets, may all cause deadly threats. For example, the automatic robot toy in children's hands may mutate into the intelligent technology of the Matrix in the past.
Therefore, Zhang Hao asked researchers to continue to raise the limits of the rail gun. If you can increase the speed of the rail gun to one tenth of the speed of light, then you should have the ability to traverse the entire galaxy.
In short, before encountering the Red River civilization, everyone had to do everything in their power to develop the technology and try to increase the technical level and the power of military weapons.
Because everyone can't afford to gamble. Once lost, the entire Uranus will be enslaved or completely cleaned up.
However, Zhang Hao has many things, and Dayang Group has more plans. After giving rewards and encouragement to the staff in space, Zhang Hao hurriedly took a pack and jumped from space...
Relying on the cultivation of the virtual state of the hole, Zhang Hao experienced a real bungee jump.
Landed directly from the space to the aura layer; the whole body Zhenyuan shield actually supported the flame and impact when landing. Finally, enter the aura and use the spell to steadily land.
It only took less than 20 minutes for Zhang Hao to return to the headquarters of the Ocean Group from space.
A little bit of government affairs, Zhang Hao came to the space center again the next day.
Here, a brand-new flying tool is being built: the space plane!
Since the successful research of the plasma engine, Zhang Hao ordered the relevant technicians to start researching the space plane.
Space planes are not space shuttles. Air refers to aviation; sky refers to aerospace. Air and space planes can fly in the atmosphere and fight in space. This is an amphibious technology!
Airplanes are more flexible and can take off from the ground and rush directly into space. If you take off from the ground, you only need the runway, and no longer need a launch tower.
The technology of the tower is complicated, the cost is expensive, the maintenance is cumbersome, the efficiency is first, and the carrying capacity is weak.
In contrast, air and space planes only need the runway; and the maintenance of the runway is simple. Moreover, when the space plane takes off, it can use air buoyancy, and its carrying capacity is beyond imagination.
If there is a space plane and the technology is mature, the cost of space transportation will be reduced from the price of 4 yuan per gram to 4 yuan per kilogram or even lower! The technical staff of Dayang Group has repeatedly demonstrated it.
So Zhang Hao paid special attention to the space plane.
At this time, the first air and space plane is about to be assembled.
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