Chapter 1072 Aeroplane
Zhang Hao heard Nangongzhi's inquiry, but he didn't turn his head back. Mainly...you didn't ask me directly.
The target of Nangong Zhi's inquiry is the commentator arranged by Dayang Group. These are actually graduate students during the internship period.
The narrator simply explained: "Actually, the starry sky cannon weapon system is already accumulating energy.
On the other hand, because the Star Cannon is powerful, its recoil is also great. The effect of force is mutual, and the star cannon and the projectile in the static state bear the same force.
Therefore, during the firing process, the starry sky cannon body will retreat; and this will undoubtedly cause the power of the cannonball to not reach its maximum.
Once the cannon body retreats, it will lose a considerable amount of energy; in addition, the receding of the body will shorten the actual effective length of the barrel, resulting in insufficient acceleration time for the shell, and will reduce the accuracy of firing.
Under such circumstances, accelerate in advance, so that the cannon body has a certain speed and energy, which will offset the reaction force when firing, and maximize the power of the starry sky cannon.
In addition, if it is launched in a static state, the cannon body will recede due to recoil, which will cause its orbital speed to be lower than the lowest orbital speed, and be pulled back to the ground by the gravity of the planet.
The body of the star cannon is heavy, and it takes a long time to accelerate. Therefore, in order to prevent uncontrollable situations, you can only accelerate in advance. "
After hearing this, everyone nodded their heads. Even Nangong Zhi had to nod. Although these things feel very simple, but their importance cannot be ignored. Sometimes it is often because of a small negligence that the entire campaign fails.
When the rail gun accelerated for about 17 minutes, the voice of Huang Mingshan, the person in charge at the front, came from the observation room: "The energy storage is 100%, ready to launch!"
The next moment, everyone saw that the railgun in space, which was accelerating and gradually trying to escape the gravity of Tianyuan Star, stopped suddenly. The originally beautiful, light blue plasma engine tail flames in the rear suddenly trembled and became chaotic.
As for the front of the giant cannon, they couldn't see anything. There is no gushing flame when the artillery is fired.
It was so quiet, there was not even a sound in space. If it wasn't for the sudden stop of the giant cannon, no one would have known that the starry sky cannon had completed its first launch just now.
160 small high-power nuclear islands are stored in a launch in 17 minutes. Everyone is eager to see how powerful it is. It's a pity that this rail gun directly wants to fly out of the star system. Such a powerful shell, as long as the Dayang Group is still a little normal, it will not use it to attack the planets in the galaxy.
Special railgun shells weighing 50 kilograms, designed to fly at a speed of 500 kilometers per second!
If you want to understand the speed of 500 kilometers per second, you can follow the current astronomical figures of Dayang Group:
The first cosmic speed, that is, the speed of gravitation around Tianyuan star, is 25.3 kilometers per second;
The second cosmic speed, that is, the speed of getting rid of the Tianyuan star, is about 36 kilometers per second;
The revolution speed of Tianyuan star is 30 kilometers per second;
The third cosmic speed, the "minimum speed" of the aircraft launched from the orbit of Tianyuan star reached 16.7 kilometers per second. It should be noted that the so-called minimum speed is added to the revolution speed of the Tianyuan star itself. That is to say, its absolute speed is '30+16.7=46.7' kilometers per second.
This is still in the orbit of Tianyuan star. If it is near Venus or even the sun, the speed will be even higher.
Then there is the revolution speed of the sun, which is 250 kilometers per second.
Now it is the fourth cosmic speed, the lowest is 120 kilometers; counting the speed of the sun itself, it is 370 kilometers per second.
In other words, a railgun shell with a speed of 500 kilometers per second can theoretically fly out of a large galaxy! As long as it is launched, it should not be opposite to the revolution speed of the sun.
At a speed of 500 kilometers, it already has the initial interstellar strike capability. Of course, the starry sky is vast, and at a speed of 500 kilometers per second, it takes 600 years to span a distance of one light-year, which is the diameter of the gravitational influence of the star system!
Six hundred years later, the target has long gone to nowhere.
However, it is completely feasible to attack targets such as planets. The rules of motion of the planets can be calculated.
However, no matter how powerful this rail gun is, its firing effect is indeed invisible. Even the eyes of a master of the void cannot capture small-sized objects at a speed of 500 kilometers per second.
Soon Huang Mingshan reported to Zhang Hao: The launch was successful. A brief inspection will follow, followed by nine consecutive launches; after nine, a major overhaul will take place. The overhaul process is expected to take a month.
The first star cannon is still experimental, so it needs to be repeatedly checked, verified, collected data and accumulated experience.
After a little inspection, the star cannon was fired for the second time an hour later, and the direction remained the same, it was fired in the direction of the Red River Civilization.
By the way, since the launch from Tianyuan Star to the location of the Red River Civilization is all inside a large galaxy, problems such as the movement of stars can basically be ignored. It can be viewed as a relatively static system.
That is to say, the speed of the cannonball of the starry sky cannon will fly at a speed of 500 kilometers per second in the void. However, the Red River civilization is closer to the core of the large galaxy. If the shell can fly there, the speed will increase to 800 kilometers per second.
At a distance of 700 light-years, the cannonball is expected to take 3300 years to fly through—if the cannonball encounters no obstacles along the way.
From this point, we can also see the advantages of rail guns. If it is laser, particle technology, etc., the flying distance is far away, and basically it will disperse by itself. But the railgun can keep flying until it meets the one it is destined to meet... Poor guy~
After that, Zhang Hao and others stopped paying attention to the test of the Starry Sky Cannon. It has been going on for almost a year, and it turned out that there was no halo when I observed it for the last time. It was a visual feast.
The most spectacular scene is the laser launch of the spaceship on the ground. A beam of light pierced straight into the sky, extending to the end of the line of sight. Even if it breaks through the atmosphere, because the laser contains a lot of particles, the laser still emits a faint orange brilliance.
From a distance, it looks like a pillar reaching the sky directly pushes the spacecraft from the ground to the space.
The tour is over, but the testing is still going on. Compared with those who only want to see the magnificent scene, there are also some 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 level such technology belongs to in the Red River Civilization.
However, on the ground before, the Dayang Group had tested the power of the rail gun with the remains of the spacecraft on Liuli Island. At that time, the maximum speed of rail guns on the ground was "only" 100 times the speed of sound, that is, 50 kilometers per second. But such a rail gun can easily penetrate the hull of Liuli Island's spacecraft.
Then, the speed of 500 kilometers per second should be enough to penetrate the spacecraft of the Red River Civilization.
But Zhang Hao is cautious. After all, in the past hundreds of thousands of years, or even 200,000 to 300,000 years, the technology of the Honghe civilization may have made some miraculous progress. For example, creating nuclear-grade materials!
Previously, the spaceship materials of the Xuanhuang civilization were at the atomic level. In fact, they can be regarded as a diamond-like material with a perfect structure and artificially strengthened.
But this kind of material is atomic-level material after all; and the atom itself is very 'empty'.
But if it is a nuclear-grade material, such as the material of the "water drop" 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, both the Red River Civilization and the Xuanhuang Civilization are cultivation civilizations. Most of its own exploration of the material world has only scratched the surface.
But this so-called "taste and stop" is also aimed at advanced civilizations.
The toys of children of advanced civilizations, if placed on ordinary planets, may cause deadly threats. For example, the automatic robot toy in the hands of children may mutate into the intelligent technology of the Matrix in the former world.
Therefore, Zhang Hao asked researchers to continue to improve the limit of the rail gun. If the speed of the rail gun can be increased to one tenth of the speed of light, it should have the ability to traverse the entire galaxy.
In short, before encountering the Red River Civilization, everyone had to do everything possible to develop technology and improve the technical level and the power of military weapons as much as possible.
Because everyone can't afford to gamble. Once lost, the entire Tianyuan star will be enslaved or completely cleaned up.
But Zhang Hao has many things to do, and Dayang Group has more plans. After giving rewards and encouragement to the staff in the space, Zhang Hao hurriedly packed his bags and jumped down from the space...
Relying on the cultivation base of Dongxu Realm, Zhang Hao experienced a real bungee jumping.
He landed directly from space to the aura layer; the shield of real energy around him actually supported the flames and impact when he landed. Finally, enter the aura layer and use spells to land stably.
It only took less than 20 minutes for Zhang Hao to return to Dayang Group headquarters from space.
After a little handling of government affairs, Zhang Hao came to the space center again the next day.
Here, a brand new flying tool is being built: an aerospace plane!
Since the successful research of the plasma engine, Zhang Hao ordered relevant technical personnel to start researching aerospace aircraft.
The space shuttle is not a space shuttle. Sky refers to aviation; sky refers to aerospace. Aerospace aircraft can fly in the atmosphere and fight in space. This is amphibious technology!
Aerospace planes are more flexible and can take off from the ground and rush directly into space. And if it takes off from the ground, only the runway is needed, and the launch tower is no longer needed.
The technology of the launch tower is complicated, the cost is expensive, the maintenance is cumbersome, the efficiency is low, and the carrying capacity is weak.
In contrast, an aerospace plane only needs a runway; and the maintenance of the runway is simple. And when the aerospace plane takes off, it can use the buoyancy of the air, and its carrying capacity is beyond imagination.
If there is an aerospace plane and the technology is mature, the cost of space transportation will be reduced from 4 yuan per gram to 4 yuan per kilogram or even lower! The technicians of Dayang Group have repeatedly demonstrated.
So Zhang Hao pays special attention to aerospace aircraft.
At this time, the first aerospace plane is about to be assembled.