Egypt.

At the beginning of June, the two underground drainage tunnels of the Nile in the Kom Ombo junction project were officially completed.

The team then cut off the surface channel of the Nile, which is 3 kilometres long, through an underground drainage tunnel.

A canal boat dug the land between the Nile and the southern canal and pushed it towards the desert to the west.

After more than a month of excavation.

Finally, the southern canal was excavated to the Harrij oasis area, and then the canal boat turned around and dug a parallel double line.

With the arrival of the canal in the Harij Oasis District, the Egyptian Space City near Jajay Manor in the Harij Oasis District also ushered in the first wave of large-scale material replenishment.

Dr. Mikoyan and others, who had eaten sand here for more than half a year, finally breathed a sigh of relief.

After all, watching the rapid development of other space cities, they are still doing theoretical research here, which is really too embarrassing.

on the temporary pier.

Dr. Mikoyan and the base manager Wu Zhi stood in the base's communications tower, watching the three 50,000-ton container ships docked at the dock, unloading a large number of supplies, and about 5,000 new humans coming to support them.

"The materials and people are initially satisfied, and our project can officially begin."

"Doctor, are you sure you want to use that solution?"

Mikoyan nodded: "This is the most potential plan at the moment, if it succeeds, then we can start the alien colonization plan." ”

But Wu Zhi looked entangled.

Dr. Mikoyan said confidently: "Don't worry, that solution has been simulated many times using supercomputing, and there will be no big problems. ”

"Doctor, Dr. Mori from the shipyard has arrived." The assistant shouted in the distance.

Dr. Mikoyan patted Wu Zhi on the shoulder: "The matter of the dock will trouble you, I will go over and discuss the space shuttle plan with Dr. Sen first." ”

"Okay!" Wu Zhi could only shrug his shoulders, he knew that these researchers were sometimes very stubborn.

Mikoyan and his assistants came to the underground area of the base.

In a small office, he met with Mori and five other engineers and researchers, who had made a special trip from the New Luzon Shipyard.

The group exchanged pleasantries for more than ten minutes, and then went straight to the point.

Mori Shangzhe spoke first: "Dr. Mikoyan, I have already seen the plan, I don't know much about the design of the space shuttle, but if it is the design of the reinforcement structure, then I can still provide some help." ”

"Then we have a very simple solution, which is to enlarge the proportion of the shuttle so that it can withstand the explosive impact of metallic hydrogen." Dr. Mikoyan said as he projected the conceptual model.

Through the holographic projection, the crowd can see a model of the space shuttle.

"Completely ignoring passivation of metallic hydrogen?"

"What a simple and crude solution."

Mikoyan did not get angry, but said with a smile: "This is also the most effective plan, the maturity of metal hydrogen passivation technology is still unknown, and I don't want to waste time." ”

And Mori Shangzhe thought about it seriously, because this thing was in line with his aesthetics.

They calculated the explosive power of metallic hydrogen, substituted it for the current metal materials, and adjusted the parameters of the engine's explosion chamber and nozzle little by little after simulation calculations.

In order to balance the explosive power of metallic hydrogen, as well as the problem of preservation, they magnified the size of the shuttle to the extreme.

After more than three hours of discussion, I could barely come up with a preliminary plan.

But looking at the parameters of this scheme, an engineer hesitated: "Can this thing really fly?" ”

The main reason why the engineer said this is that the shuttle is so big, with a launch mass of 32,000 tons, which is almost eight times that of the largest launch vehicle, the Saturn V.

This thing is about the same mass as a Luzon-class amphibious assault ship.

The thought that this is a space shuttle is simply crazy.

Dr. Mikoyan reminds: "Don't forget about the thrust and specific impulse of metallic hydrogen. ”

Although Homo sapiens metallic hydrogen belongs to sub-state metallic hydrogen and is not a metallic hydrogen in its full state, its specific impulse is still 3.2 times that of ordinary liquid hydrogen and liquid oxygen engines, reaching 1297 seconds.

And because Homo sapiens has a good foundation in the technology of the explosive shock wave engine, it is possible to use the explosion shock wave to further improve the thermal efficiency of the fuel.

According to the results of the simulation calculations, they designed an explosive shock engine that could have a further increase in thrust when using metallic hydrogen as fuel.

The space shuttle designed by Mikoyan and others will carry 5,000 tons of metallic hydrogen as fuel, enough to push a fully loaded 32,000-ton space shuttle into low-earth orbit.

Of course, metallic hydrogen can only be used as a one-time fuel, and there is no way to store it for a long time, so it can only be used in the out-of-atmosphere stage.

According to Dr. Mikoyan's design, the shuttle would not need to stay in low-Earth orbit or go to geosynchronous orbit, the Moon and Mars, but would serve as a carrying platform.

After flying out of the Kármán line, you can launch the spacecraft you are carrying, and then the shuttle will turn around and return to the atmosphere and return to the space city.

The payload of the designed space shuttle is about 12,000 tons.

The mass of dozens of ISS can be transported to low earth orbit at one time, and unless the space elevator project and mass projector project of Homo sapiens can be successful, there is no launch vehicle payload comparable to this project at this stage.

The dozens of tons of payload of ordinary launch vehicles, Dr. Mikoyan can no longer look down on them, he thinks that if he wants to play, he must play a big one.

After all, if the Guigong plan is to be completed by 2030, the current small rocket alone, that little transportation volume is a drop in the bucket.

Only this super space shuttle can satisfy the space strategy of Homo sapiens.

The Ministry of Space, which is not short of money, has also approved Dr. Mikoyan's Super Space Shuttle project, allowing Egyptian Space City to complete its first experimental aircraft by the end of next year.

That's why he hurried to get engineers and researchers from other systems to come and help.

Now that he has already packed the ticket with the Ministry of Space, Dr. Mikoyan naturally wants to go all out to get the experimental machine out as soon as possible, and then ask the Ministry of Space to pay for it quickly.

Because the project was carried out in Egypt, it was named the "La" Space Shuttle Project, or "La Project" for short.

Mori and others exchanged ideas at this base for more than a week.

During this time, they continued to refine various designs of the shuttle.

For example, in order to maintain the ultra-low temperature maintenance system of the space shuttle and the feathered wings that control the wings, a lot of electrical energy is required, so two small thorium-based molten salt nuclear reactors are simply launched.

The other is the location of the spacecraft, and after some simulation research, it was decided to place the spacecraft on top of the space shuttle.

In fact, it is similar to Lao Maozi's blizzard space shuttle.

The reason for this design is that the weight of the pull number is too large, and there is no way to launch vertically, so you can only take the ramp runway.

If you want to run on the runway, the spacecraft must not be hung on the bottom, but can only be placed on the back of the shuttle, so that the shuttle can support the spacecraft.

The other system is the security system.

Considering the dangers of metallic hydrogen, Dr. Mikoyan and his colleagues decided to abandon the manned solution and adopt an unmanned mode.

Even the spacecraft is not intended to carry astronauts, who can go to outer space on a separate launch vehicle and then board the spacecraft from low-Earth orbit.

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