Doomsday Bunker Upgrade Chapter 706: Missile in the tunnel

The missile pushed into the tunnel slides all the way to the depths of the tunnel under the push of the flatbed truck.

Although it is a missile, because the tunnel is not a complete branch line, it still needs a flatbed truck to send the missile to a suitable location, and it cannot be ignited directly at the entrance of the tunnel.

However, the military made preparations in advance when designing the tunnel. The tunnel is more than 4,000 meters long and has a vertical depth of 1,500 meters. Although the last section has not been completely completed, it has met the initial requirements. Design requirements can ensure the use of nuclear bombs.

As for the military looking for Chen Xin to modify the missile in order to penetrate the last 100-meter-deep stratum, in order to directly detonate the nuclear warhead in the alien creature's lair.

Although launching a missile in a tunnel sounds bizarre, as long as the tunnel is straight and long enough, the missile can remain stable after ignition, and it is not impossible to ignite the missile in the tunnel. .

Although this is as dangerous as driving a plane through a tunnel, any change in airflow and jitter may cause the missile to deviate from the intended trajectory, hit the tunnel wall and affect the hit, but it is still feasible after all of.

And this ground-penetrating missile, which has been upgraded and transformed by Chen Xinzhi, has been specially optimized in this regard to ensure that the missile can reach the bottom of the tunnel smoothly and penetrate the stratum more than 100 meters deep. Send the part of the warhead carrying the nuclear bomb into the alien's lair.

The speed of the flatbed truck is constantly accelerating. Although no one is driving it, this remodeled flatbed truck has gradually approached its speed limit through remote control.

"Ignition of the booster rocket!" In the remote control room on the other side, seeing that the flatbed vehicle has reached the predetermined depth, the booster rocket installed on the flatbed vehicle for acceleration begins to work, further increasing the speed of the flatbed vehicle.

At this moment, the people in the remote control room are very nervous. It is the first time for them to do this kind of thing, and they have not done any exercises before. Everything is just a plan obtained through computer simulation. There were several simulations in the virtual system over there.

Practice, this is the first time.

However, this first practical operation is an actual combat.

Therefore, no one dared to guarantee that it would be successful this time.

But again, everyone knows that this missile launch is not allowed to fail.

The reason is also very simple. What they fired was not an ordinary missile, but a strategic nuclear missile with a megaton yield. Once the position of the explosion was deviated, the scheduled task could not be completed. The other influence is a responsibility that no one can afford.

However, with Chen Xin's upgrades and adjustments to the missile, and the entire launch process has undergone several simulation tests, in theory, there will be no problems.

Just when everyone was sweating, the staff responsible for broadcasting the situation suddenly shouted: "The missile is about to enter the horizontal section!"

"The first stage booster rocket is separated!" The person in charge of the launch also issued his order loudly.

This order was executed accurately. When the missile entered the horizontal section, the first-stage booster rocket that had completed the acceleration work was separated from the flatbed very smoothly, and at the same time, the second The stage-accelerator rocket also ignited smoothly.

According to the predetermined plan, the first-stage rocket booster allows the flatbed vehicle carrying the missile to pass through the first section of the downward tunnel. After entering the horizontal section, the second-stage acceleration is carried out. After leaving the horizontal section, the missile itself It will start igniting and go all the way down to the bottom of the tunnel.

The reason for this arrangement is mainly because no one has ever fired missiles in the underground tunnel. There is also a horizontal section of the tunnel that is planned to be expanded into a logistics base in order to allow the troops to better engage in combat. Naturally You can't just let the missile ignite and fly by itself.

However, when the missile leaves the horizontal section, after the missile itself ignites, it will separate from the flatbed vehicle, further increasing the speed.

This is also to increase the speed of the missile as much as possible. After all, in the tunnel, limited by various influences, it is impossible for the speed of the missile to break the sound barrier. Therefore, in order to increase the speed of the missile as much as possible, The speed of the missile can only be increased as much as possible by means of multi-stage rocket acceleration.

The engine of the missile itself has been adjusted. Although it will not accelerate the speed of the missile to break the speed of sound, it will try to make the speed of the missile as close to the speed of sound as possible to provide it with more kinetic energy.

As for how a missile that does not reach the speed of sound will penetrate the stratum more than 100 meters away, this is what Chen Xin's transformation needs to achieve.

In fact, the penetrating warhead of the missile is similar in principle to the shelling armor-piercing projectile. The outer shell is made of softer material. After hitting the target, the shell that is wrapped in the outer shell is made of hard material. The inner warhead uses powerful kinetic energy to penetrate the armor or formation.

It's just that Chen Xin used some brain-hole designs on this missile. When the missile hits the target, the hard armor-piercing warhead carrying a nuclear bomb inside it will be shot out like a cannonball in the chamber. Let its speed break through the speed of sound, and obtain enough kinetic energy to penetrate more than 100 meters of formation.

Of course, this kind of design is not something that can be found on serious missiles. It is entirely based on the idea of ​​Chen Xin's brain hole, and then forcibly upgraded with the system upgrade function.

After all, no missile would consider launching in a tunnel~IndoMTL.com~, let alone how to make a nuclear warhead penetrate more than 100 meters deep, and more than 1,500 meters underground Deep detonation.

As for why it is necessary to accelerate the missile after the warhead that can penetrate more than 100 meters deep after being upgraded by Chen Xin, it is so that the missile body can penetrate the sediment at the bottom of the tunnel. There were piles of corpses dozens of meters in length.

These corpses are of course not as hard as the ground, but the gaps between the corpses and the softness of the corpses themselves are excellent buffer materials. If the missiles cannot be accelerated to a certain extent and forcibly penetrate these corpses, It's going to get the missiles stuck in these corpses.

In this case, even if Chen Xin's upgraded warhead can penetrate the formation, it will be affected, lose a lot of kinetic energy, and may not even be able to penetrate the formation.

With the protection of these measures, the missile finally plunged into the corpse at the bottom of the tunnel, and penetrated the layers of corpses with strong thrust, reaching the bottom of the tunnel.

"Bang!" A needle-like ground-penetrating warhead much thinner than the missile was shot from the top of the missile, and instantly penetrated into the ground.

Then...the people in the remote command room felt the ground shaking under their feet.