Zhu Rongcheng slowly rotated in the Martian synchronous orbit.

The centrifugal force generated by this rotation causes the outermost ring chamber to generate a standard gravity force (simulation).

Since the length of the spiral arm has reached 15 km, the gradient difference caused by the rotation is already negligible, and will not affect the life of new humans and the earth's flora and fauna in the standard gravity chamber.

Although Yin Siyong and others synchronized the state of the robot, they could still feel the quasi-gravity brought by centrifugal force.

After watching the movie, the group went to visit the botanical garden.

A crew member whispered while admiring the strange plants, "Captain, are we going to return to the moon tomorrow?" ”

"Back to the moon? No, we're going to take a trip to Cooper Belt. ”

"Cooper belt? Haste mode? That's fine. Michelle reacted immediately.

Yin Siyong nodded: "The headquarters wants us to test the rapid mode, and by the way, we will go to Gu Bai to take a walk." ”

"Don't have any other tasks?"

"Of course, we'll stay here for an extra week, and the Martian colony is preparing a batch of moons, and we'll just throw them into the Cooper belt when the time comes."

Michelle was a little surprised: "Just throw the cooper belt?" Don't need specific targeting? ”

Yin Siyong shook his head: "Of course not, but we are going to take a walk around Gubai, do you understand?" ”

"Wandering around? I understand. ”

The so-called walking around is obviously flying around the entire Cooper belt.

In the traditional astronomical field, the main part of the Cooper Belt is generally considered to be only extending from the 2:3 resonance region of 39.5 astronomical units to the 1:2 resonance region of 48 astronomical units.

Moreover, the Cooper belt is very thin, mainly concentrated in the range of 10 degrees above and below the ecliptic plane, but there are still many celestial bodies scattered in a space that is several times wider.

In conclusion, it is less like a ribbon and more like a receptacle or a doughnut, which means that the Coyinbur belt has a 1.86-degree tilt to the plane of the ecliptic.

For safety reasons, Yin Siyong was on duty on the third day, and he took a group of crew members and began to plan flight routes.

Looking at the holographic star map in front of him, Harriet, the navigator of the battleship, pointed to the ecliptic plane of the solar system:

"If we sail along the plane of the ecliptic, we have to pass through the orbital domains of the asteroid belt, Jupiter, Saturn, Uranus and Neptune, which have a lot of asteroids, especially tiny ones."

This is also something that Yin Siyong is very worried about.

After all, a space warship sailing at high speed, even if it is against a magnetic field shield, its protection is not much higher than that of an ordinary civilian spaceship.

Especially this time they are going to test the rush mode, when the speed of the battleship will soar to 1000 kilometers per second, and it will only take 41.6 hours to cover the distance of one astronomical unit.

It's a lot faster than bullets and missiles, and if it collides head-on with something else, the consequences are unimaginable.

There are many examples of civil airliners on the earth, where the passenger plane and the bird collide head-on, and the result is that the nose of the passenger plane is knocked out of many potholes.

The slow speed of a civil airliner will be damaged by the impact of relative speed, let alone a spacecraft that travels at a speed of 1,000 kilometers per second.

For this problem, the headquarters actually has some considerations, and at this time, the staff of the Mars colony are adding armor and one-time anti-collision reactive armor to the head of the Qinglong-class space battleship.

】

However, the addition of armor is actually only a palliative solution.

After all, the speed is as fast as 1000 kilometers per second, and no matter how thick the armor is, it will not have much effect.

Therefore, Yin Siyong, who did not want to fail in the test, could only find a way to reduce the risk during the voyage.

"The ecliptic route is really too risky, and I recommend a diversion." Michelle said as she drew another route on the hologram.

The route still departs from Mars, but instead of following the ecliptic plane, it first flies one astronomical unit (about 150 million kilometers) perpendicular to the ecliptic plane towards Polaris.

Then change the direction of flight and fly parallel to the plane of the ecliptic in the direction of Cooper.

Fly above the Cooper Belt and fly vertically down one astronomical unit to enter the interior of the Cooper Belt.

Although this will increase the range of two astronomical units, the safety is improved by dozens of times, after all, the stars of the solar system are generally concentrated in the ecliptic plane, and most of the stars can be avoided by avoiding the ecliptic plane.

Yin Siyong thought for a while, and he also thought that this plan was good: "I agree with this plan, but this time the voyage is a bit long, and there are a few more spare parts for the lithium-carbon nano layer." ”

"Well, after changing the course, the distance from 43 astronomical units has been increased to 45 astronomical units." Michelle also has a big headache.

The distance of 45 astronomical units is only a prelude to this voyage, and there is an even longer cooper belt around the mission.

How long is the Cooper belt?

According to the formula for circumference, circumference = diameter of the circle x pi.

It is now known that the Cooper belt is 39.5 to 48 AU from the center of the solar system, which is the radius distance.

The diameter is 89~96 astronomical units, multiplied by pi 3.14, and the circumference of the Cooper belt can be calculated to be about 279.46~301.44 astronomical units.

According to the ultimate speed of their Qinglong-class ship, one astronomical unit takes 41.6 hours, which takes more than 10,000 hours, about 500 earth days.

And this is still the speed of sailing at the limit speed, obviously after they enter the Cooper belt, there is definitely no way to go full speed.

As a result, they estimated that they would have to sail the Cooper Belt for several years.

Even if the fusion power system does not need to be started in inertial flight mode, it must be repeatedly activated in the process of stop-and-go.

Yin Siyong and others had to carefully calculate how long the fusion power system needed to run during the voyage, and this data was crucial.

But just when they're upset.

They were contacted by the Carl team.

Holographic communication screen.

After listening to Yin Siyong's explanation, Carl replied with a smile: "Your worries, I can help you solve part of it, this is the magnetic field and tail field fine-tuning program." ”

Immediately, a software installation package was sent.

"As long as you insert this patch into the intelligent management system of the nuclear fusion power system, you can increase the service life of the lithium-carbon nanolayer by 30~40%."

"Really? That's great. Yin Siyong breathed a sigh of relief.

But Carl cautioned: "Don't take it lightly, this patch is only used in areas with relatively small gravitational interference, and after you enter the Cooper belt, there is a part of the area of Neptune's gravitational resonance, and the patch may not work." ”

"I see, thanks Dr. Carr for the reminder." Yin Siyong nodded.

Soon a week passed.

Yin Siyong's Qinglong-class space battleship began the final sailing inspection.