After completing a test shot, Well No. 5 will enter the sorting, inspect and prepare for the second round of test shots.

The Rockets in the second round of test shots changed a little, and their name became Expedition One C.

The three models A, B and C actually come from the same rocket design team.

Type A is used for manned, that is, the original purpose of the design of Well No. 5; Type B is used for transporting important loads. The equipment is too precision and often difficult to withstand the pull of huge accelerations, so the maximum well outflow speed of Type B is only slightly larger than Type A.

Type C is intended to maximize the use of the power of super electromagnetic tracks and send as heavy loads as possible to the track.

The length of type C increased from 30 meters to 35 meters, but the length of its load section was shortened, and with the upper-level thruster, it was only fourteen meters.

The main loading of the second round of test launch is a water tank containing thirty tons of water, a water tank, and two sets of reptile robotic arm assembly parts, five Homo sapiens robots and their various tool accessories, a set of RCS fuel redistribution system cargo holder, the total weight of the test launch load is close to fifty tons. This weight is even a big distance from the theoretical cargo load limit of Well No. 5!

Among them, the crawler robot arm is an existing equipment in the old space station. This thing can use the docking points reserved in each cabin to crawl around outside the space station to help docking, astronauts' extra-cabin work and other operations.

At this time, there will be two sets of robotic arms on the space station in the future, but only basic functions. The new one is also equipped with additional branch robotic arms to help subsequent processing operations.

The rcs fuel redistribution system is a new equipment specially developed for future space stations.

Since there are many out-of-cabin operations in the space station in the future, the original one-time RCS group unit is a bit out of date. This set of equipment is to cooperate with some new RCS group units to realize RCS reloading in the space station to reduce material consumption.

The redistribution system also represents a space branch that is increasing investment, reuse and regeneration, and will not be expanded here.

The total load weight of Expedition One C reached twice the first test launch, and its self-weight was 80 tons more, but the speed of this thing was even faster than that of Type C, close to Mach three.

A fully superconducting electromagnetic silo is so domineering. As long as the electric tube is enough, the speed of the radiator is just a matter of data setting.

After exiting the well, Expedition No. 1 C advanced with 5% thrust, and the speed did not increase but decreased. When it reached a height of 10,000 meters, the temperature of the outer wall was close to 300 degrees and it was stuck.

This is another research project that aims to maximize the use of existing emission rules and further improve fuel utilization.

Sanbaidu is a relatively special point in pneumatic heating. At a certain height, the speed is just enough to trigger the maximum temperature that can be achieved when pneumatic heating.

This launch will control the temperature of the outer wall between 280 and 350 degrees to see if the 6% of the fuel in the theory can be saved.

The result is OK. Although the theoretical value has not been reached, it does reach the second planned track when the first stage is separated, saving about 3% of fuel than the previous plan.

The location of this track is higher than that of Expedition No. 1 B test launch, with a near point of 130 kilometers and a distance of 200 kilometers. If this altitude naturally falls back, it will take several years for the first level to fall back into the atmosphere.

From the perspective of space waste management, this launch plan is not very good, but if you try it, you will always be unable to take into account the situation.

With this experience, the subsequent C type can slightly reduce the proportion of the first level, leave the first level on the same orbit of the B type, fall back to the atmosphere within two or three months, and leave more fuel reserves for the upper level. In the end, the excess fuel can be recovered by the future space station.

Two test launches were successful, and some generator sets of the power supply network of the No. 5 launch silo was temporarily shut down, the entire well was fully repaired, and the first manned simulation test was prepared.

On the other side, Well 1,2 and 3 launches normal components in turn according to the launch window.

Due to the orbital rise, the launch window has increased from more than 80 minutes to more than 100 minutes. A slight increase in the window section is more conducive to continuous emission, and each launch section has more time to adjust the end docking.

Three days later, the power supply network of the No. 5 launch silo increased its power generation again and prepared for manned simulation tests.

Do a manned simulation first or for the safety of the astronauts.

The spacecraft launched from Well 5 is a brand new model of manned spacecraft named Yinglong.

In the past, the C country manned space flight used rockets with a diameter of 2.5 meters, with a payload fairing diameter less than 3.35 meters, and the diameter of each section of the spacecraft body was less than three meters.

Using electromagnetic wells to launch, the load section can only be less than or equal to the diameter of the rocket body. Using a 5-meter silo to launch a three-meter diameter load will inevitably be a huge waste.

Yinglong uses geometric column sections with octagonal cross-sections. Although in order to ensure that the structure does not deform under long-term internal and external pressure difference, it still uses a curved shell, but it is more like a spaceship in science fiction films - except for solar panels.

As mentioned earlier, the effective utilization rate of the inner space of the circular cross-section is relatively small, and the geometric configuration, mezzanine equipment and pipeline configuration are more reasonable, which is conducive to reducing the difficulty of maintenance.

But there is a major disadvantage: objects with non-circular cross-sections will re-enter the atmosphere at the same speed, and the heating rate will be faster!

That's right, Yinglong never thought of returning to the atmosphere when he designed it.

The subsequent escape/return capsules will all be launched by wells 1, 2, and 3 to automatically dock with the space station. Due to the single mission, this return capsule will be simpler and cheaper, but will be more secure. Unmanned testing has been completed before the space station can be upgraded.

Yinglong has a total length of 11.6 meters, a cross-sectional angle length of 4.6 meters, and the number of seats as many as twelve, which means it can send twelve people to heaven at one time!

In addition to basic functions, the first edition Yinglong also has two side-facing interfaces, which can accommodate two pressure relief chambers/hackouts equipped with space suit personnel, and a cargo hold of nearly 40 cubic meters.

There will be advanced functions later.

Yinglong is actually not a spacecraft built for space stations. After all, together with Country C and its cooperative countries, there are several low-orbit spacecraft models. Developing a large spacecraft with repeated functions is a waste of resources.

Its short-term goal is to become a round-trip spacecraft developed and used on the moon, and subsequent models will target Red Stars and Asteroid Belts.

To meet subsequent tasks, Yinglong spacecraft has some expansion functions, such as anchor points that can be parked by the reptile robot arm are necessary; there is also an additional fuel tank external system that can utilize some of the fuel tanks remaining in the asteroid; it can even be installed through simple modular installation, with two or four additional thruster units used to capture the asteroid.

Back to the test site.

In this test launch, twelve ascending seats were fixed with 85 kilograms of dummies. The whole body of these dummies was sensored to collect data throughout the test stage.

In addition, the cargo stock has a week's ration, drinking water, and fuel capacity of 30% of the fuel tank.

In this state, Yinglong's total weight is 23 tons, which is slightly heavier than the core compartment of the old space station. It can be seen that compared with the static object of the core compartment, the Yinglong spacecraft, which is five meters shorter, is very large, but this state is already the optimal solution for comprehensive consideration of various tasks.

During the subsequent launch process, rocket engines at all levels did not reach maximum thrust.

The maximum g force measured by the sensor stayed at 4.5g, and lasted only three seconds in total. The g force was controlled below 3.99g during other time periods.

A small g force means slow acceleration and will stay in the atmosphere for longer periods of time. The overall resistance and gravity bring greater losses to Δv, and dozens of tons of fuel are wasted.

However, controlling the g-force of the launch process is the original purpose of building the No. 5 Super Well. Through lower launch force, people with weaker physiques can be sent to space, such as those national treasure-level academicians of the two academies and subsequent professional talents.

The success of this test means that you can take on the task of transporting special talents by launching silo No. 5 and Yinglong spacecraft.

However, the second Yinglong spacecraft will take one month to complete assembly and commissioning, so the members of this round of space station still have to go to heaven in the traditional way.

The Yinglong spacecraft used for test launch will still dock with the future space station and will then be used as a one-time propulsion vehicle sent to the moon. Of course, if the situation is better then, the space system will not mind it flying a few more trips to the earth-moon transfer orbit.

In order to reduce its own burden, Country C provided a batch of superconductors with designated uses to build manned electromagnetic orbit emitters.

Among them, the project of Country R will be jointly undertaken by Country C Construction Company and Country R Ranking No. 1 infrastructure company. In the Western Central part, because Country A's influence is still there, negative publicity over the past few decades is also a problem, so they can only make it slowly. It is estimated that it will be covered by God if it can be repaired within five years.

The engineering specifications naturally follow the standards for future use of space stations.

According to this set of standards, the load diameter is less than three meters, and the adaptability to various interfaces is relatively poor. It was also for this reason that Country C did not build a 2.5-meter-diameter launch silo.

However, considering the cost of adjusting the entire aerospace industry chain is too huge and it is too burdened by the financially tight country R. Therefore, the new launch silos jointly built with the country R. adopted one of their caliber standards, 4.1 meter core level.

In fact, taking into account the situation of Country R, ​​the industrial department of Country C recommended a core stage with a diameter of 3.5 meters. However, Country R believes that this is the only opportunity to promote the upgrading of the aerospace industry in decades, and chose the 4.1-meter core stage, which is more difficult to rocket technology.

This 4.1-meter core-level rocket was used by Country R to launch the core module of his space station, but that space station had fallen back to the atmosphere twenty years ago.

People from the Ministry of Foreign Affairs also put forward an opinion on establishing an electromagnetic emitter near the equator in TZ, but after comprehensive consideration, it was temporarily suspended.

TZ does not pass through the equator, and the neighbor Ken to the north is a transequoral area. However, the area of ​​humanized monsters in Ken is too large. Even if these things, public facilities and power grid recovery will take a lot of time, so there is no need to consider it.

TZ's advantage lies in its solid relationship with C country, and after decades of aid and self-construction, it has already established a certain infrastructure foundation.

But the development level of tz is always a bit poor. The electromagnetic transmitter is a super electric tiger, and its power consumption peak can exceed gigawatts (gwatts). In a short period of time, they cannot afford such outrageous additional electricity consumption. In particular, how much power generation capacity needs to be supplemented through peak shaving and other means must be conducted on-site inspections.

More importantly, Heizhou local lacks the real-time battlefield positioning capabilities required for precise nuclear strikes, and huge infrastructure investment may be destroyed at any time. Therefore, to build an electromagnetic transmitter, TZ's military power needs to be further improved.

These preparations are not available yet. In this round of manned mission, Western Central and R countries will provide a spacecraft each, while the rest will be done by C countries themselves.

...It is not that Country C is strong, but that the industrial strength of the waste in Western Central is too poor and cannot afford additional production capacity to bear more production and launch tasks.

The personnel in this round are the same as last time, mainly from the industrial system and engineering institute sequence, but the number of people is smaller.

The issue of number of people is also attributed to the record of Country A's defeat of Black Sheep.

Originally, Country C considered the worst situation, the pollution range of Black Sheep was rapidly expanding. In that case, the space station personnel not only did not come down, but also continued to stuff people into it. Of course, now there is no need to consider long-term development. The fewer people, the less supplies they consume. In terms of work, most simple tasks can be handed over to Homo sapiens robots.

With the accumulation of experience in the application of Homo sapiens robots, the members of this round of C country were composed of eight people and seven Homo sapiens robots, including the Western Central and R countries, as well as the eight astronauts left in the space station, a total of twenty-one.
Chapter completed!