"Then it seems that you have been prepared for a long time."

Academician She now understands why the cabin section of the central axis of the Advance has to use a super large diameter of 14 meters, not because the capacity is too abundant, but to provide sufficient space for modification and upgrading.

After the second phase of the transformation, the Advance is more like a spaceship than it is now, and it is indeed a very ideal upgrade configuration.

Lin Ju: "The commissioning time of the Advance will take almost a year, we will spend a whole year to plan the content of the second phase of the upgrade, and another year to complete the upgrade, which will be completed by the end of 2019, and there are still 8 months before the Mars window at that time, and we can even fly over." ”

"It's too much of a rush."

Academician She reminded:

"Landing on Mars is a systemic problem, a single spacecraft is not enough, and other preparations also require a launch window, and the Mars spacecraft will have to depart as soon as 2022."

Lin Ju: "Then what if it is not in the window period, we have a reliable nuclear engine, as well as Hall thrusters, if it is a nuclear engine that can run once in four or five months during the non-window period, we can carry out the Mars mission without stopping." ”

Academician She: "If there is no one to do the task...... Perhaps, but would it be too burdensome? ”

Lin Ju: "Nuclear engines can be used for a long time, just like a lunar ferry, we can build a special vehicle, if the tide is a little bit, it can already be counted as an interplanetary cargo spacecraft." ”

"It's not right, I was almost taken into the ditch by you."

In the end, Academician She still reacted, there are enough space missions in the next few years, coupled with the second phase of the advance upgrade and the uninterrupted Mars mission, the Ministry of Finance is afraid that it will have to rush over and lift the building of the Aviation Development Commission.

The Tianwen-5 plan has also been approved, and at least five Mars exploration missions will be carried out in China from April to May next year, which is big enough.

Since a large number of private enterprises also have medium and large recyclable rockets of more than 500 tons, and now a large number of colleges and universities are trying to carpool to launch small and micro probes to Mars, the number of domestic probes in the next window period will definitely increase by leaps and bounds.

Although it was late to go to Mars in China, it was fierce as soon as it came up......

Lin Ju was not discouraged when he saw that the flicker was unsuccessful, and turned to talk about others:

"She Lao, the Xinyuan-4 rocket is completed, there will be a factory ceremony tomorrow, and we will go back together tomorrow."

Academician She's eyes narrowed slightly: "You kid, don't wait for me to put on a spacesuit as soon as I get off the plane, I warn you, I suppressed the review of Yun Hongjun's matter, and there are restrictions on important people taking planes, and it is too risky for you to do this." ”

"How could it be, Tengyun only landed yesterday and can't fly again."

Academician She was relieved at this time, although he also longed for space, but when he got older, he suddenly learned from Yun Hongjun and made a mistake, I was afraid that he would be able to get a heart attack.

It's just that he relaxed his heart a little, and Lin Ju made his heart lift again:

"The World Objects Conference is coming to an end, and I want to try to invite those scientists to go to space once again, and return the support of their accelerators?"

……

October 26, Class B base.

Before the plane landed, Academician She saw the extremely spectacular rocket segments under the base, among which the first stage of Xinyuan-4 was the most conspicuous, with a length of 95 meters and a width of 18 meters, which could be seen clearly even in the air.

To put it another way, it's a collapsed 30-story skyscraper that doesn't look much smaller than the factory next to it.

"Hello? Is the communication good? What does the Water Conservancy Bureau do to eat? ”

Underneath the tall body of the first-level arrow body, Seryov frowned and looked at the city leader in front of him who was angry on the phone, and then said with a sad face:

"Mr. Xie, the width of the blocked river at the ferry is a few meters less, and it may be a little troublesome for the semi-submersible boat to go out later."

The ferry he said was a slender pass that flows from a tributary next to the base into the Min River and then into the Yangtze River, because it is inaccessible and has not been navigable by many boats, so last month it was dug up by an excavator to facilitate the delivery of rockets by semi-submersible boats.

But who knew that it was blocked again last night, and the guards along the route immediately organized dredging, but because the conditions were too poor, many machines could not enter, and now there is no obvious effect.

Fortunately, Seryov had a lot of experience in the problem of transporting giant rockets, and immediately asked:

"Do you have drone aerial images?"

"Yes, I'll have someone pass it on right away."

Seryov looked at the aerial picture for a while, and at this time Lin Ju's C810 had already landed and was walking towards this side.

After a moment's thought, he dialed a number.

"Hello? I'm Seryov, and there's a pass blocked by the rocket carrier, see if you can figure out a way...... Yes, artillery may not work very well and too slowly, will it work to drop two iron bombs?

…… I can authorize, okay, okay. ”

hung up the phone, looked up and saw Lin Ju and Academician She striding over.

"What's wrong? It's 11 o'clock now, why are the rockets still here? ”

Seryov shook his phone:

"The semi-submersible ship and the heavy crane have arrived at the floating dock, and it won't take long for the core class to depart, but the channel is blocked, and I'm looking for the Air Force to see if it can be exploded, but it's completely too late."

Xinyuan No. 4 will definitely not be shipped out today, the temporary floating dock is about 3 kilometers away from the base, the 3 kilometers of road transportation will take half a day, the hoisting operation and inspection of the four cranes will also take one to two days, and the departure should be on the 29th.

Then it will take about 7 days to arrive in the magic capital, where it will meet with the general packing box shipped from Huludao, assemble the entire rocket in the final packing box in 7 to 10 days, and arrive in Qiongzhou in another 12 days, which is roughly November 30 at that time.

Launched in December, just right.

Three weeks ago, the base also shipped out five cylindrical zero-evaporation liquid hydrogen storage tanks with a diameter of 11 meters and a length of 54 meters, each of which can store 7,356 cubic meters and about 521 tons of liquid hydrogen fuel.

The zero-evaporation tanks, which took nearly three months to build, were delivered to Jiangnan Shipyard to install a 100,000-ton bulk carrier and then filled with nearly 300 million yuan worth of liquid hydrogen before heading to Qiongzhou.

The original spherical tank scheme has too low production efficiency, and the base still relies on OGAS2.0 to complete the processing of so many tanks day and night after the crazy explosion of production capacity, and the two An-1250 are also constantly flying back and forth.

In fact, the cost of these 5 tanks can catch up with the cost of half of the Xinyuan-4, and Seryov once had the idea of filling the rocket directly at the dock with fuel before launching - anyway, the Xinyuan-4 rocket is a zero-evaporation storage tank, and he is not afraid of excessive local pressure in the tank and explosion, but this crazy idea was vetoed by the Aviation Development Committee.

(End of chapter)