When a lunar spacecraft orbits the moon in orbit, it can circle the moon once in two hours. Of course, at an altitude of more than 100 kilometers, when the lunar spacecraft is on the far side of the moon, unless it can see the situation on the far side of the moon with the help of special telescopic equipment, it is impossible to see the black lunar surface with the naked eye.

Tang Feng's choice of time for this moon landing operation was not very good, because at this time, the moon was fully turned to the other side of the earth, that is, there was an earth between the moon and the sun. The moon is locked by the earth's tidal gravity, and only one side of the moon will always face the earth, so at this stage, the far side of the moon is in the position of facing the sun.

If the moon landing operation is carried out half a month at night, that is, by using the launch time window in June, then the moon will be between the earth and the sun at that time, and the far side of the moon will be in a sunny position, so even without the help of telescope equipment, you can clearly see some conditions on the far side of the moon.

However, Tang Feng did not land on the moon this time to investigate the moon, the reason why he spent so much money to land on the moon, and he also had to risk landing on the moon himself, was to have other plans. In Tang Feng's opinion, his plan was much more important than exploring the moon.

It is precisely for this reason that Tang Feng decided to take advantage of the launch time window in May to launch the moon landing operation, in order to complete his plan as soon as possible.

If you can't see it, you can't see it, anyway, you haven't seen the far side of the moon before, and it doesn't matter if you can't see it now.

However, the side of the moon facing the earth can be seen very clearly, whether it is the quiet sea, the Chenghai sea, the rain sea, the sea of clouds and the largest storm ocean, the depression of the lunar surface can be seen clearly, as well as those such as the Copernican Ring Mountain, the Cartesian Heights, the Aristarch Ring Mountain, etc.

The first time they watched the moon at close range, Tang Feng and the six of them were very excited, even Comrade Alexander, who was also dancing excitedly. This is the Moon, far from being comparable to the tiny International Space Station.

It's just that Comrade Alexander and the commander-in-chief George . Anthony could not take the lunar module to the moon this time, and the two of them had to stay on the lunar spacecraft, and Tang Feng and the other three astronauts took the lunar module to land on the moon.

Although it is not possible to land on the moon in person, it is possible to admire the moon from such a close distance. This in itself is a rare honor, so the two experienced astronauts are also very content.

After the lunar spacecraft circled the moon six times, all the indicators reached a perfect level, and George . Anthony gave the order to launch the lunar module. At this time, Tang Feng and the four of them were already ready to go in the lunar module.

The lunar module built by Tang Feng with huge funds is very different from the image of the lunar module in the Apollo program. The lunar module, codenamed "Eagle Falcon", is not so much a lunar module as a space shuttle without wings. Because the length of the falcon is much longer than the lunar module of the Apollo program, and the volume is also several times larger than the lunar module of the Apollo program.

The lunar module of the Apollo program consists of two parts. That is, the two parts of the upper upgrade and the lower level. Together, these two parts make up the lunar module.

The upper upgrade of the lunar module of the Apollo program has a crew compartment for the astronauts to ride on the moon, as well as an upgraded power system. The descent stage is equipped with an anti-jet rocket used by the lunar module to slow down to the lunar surface, and is equipped with fuel, oxidizer tanks, water and oxygen tanks for the rocket, as well as scientific instruments to survey the lunar surface. When the lunar module is on the lunar surface, the ascent and descent stages are combined, but when it takes off again from the lunar surface, only the ascent stage takes off. The descent stage is the launch pad, which remains on the surface of the moon after launch.

The two parts of the Apollo lunar module combined are only 6.9 meters tall. The diameter is 4.2 meters, the total weight is only 16.5 tons, and only 10.9 tons of fuel are placed in the fuel tanks of the upper and lower levels.

The Eagle Falcon is integrated, to paraphrase a computer name, that is, "all-in-one machine". There is no distinction between upgrading and downgrading, and all the equipment is installed on the Falcon.

The Falcon has a diameter of 4.4 meters. The length has reached 16.5 meters, which is almost the same size as the volume of the core functional module of the lunar spacecraft, because of the use of the latest aluminum-lithium alloy, such a large volume of the Eagle Falcon, the dry weight is only 20.8 tons. It is precisely the limit of the GTO capacity of the Star-1 heavy launch vehicle.

The size of the Falcon gives it a huge fuel tank. The huge fuel tank of the Eagle Falcon can inject up to 105 tons of chemical fuel, almost ten times that of the Apollo lunar module, and this amount is precisely designed to be stuck in the limit of the "Star One" GTO capacity, some time ago the "Star One" launch vehicle lifted off a total of eleven times, five of which were specifically for the Eagle Falcon to transport fuel.

The reason why the Falcon designed such a large fuel tank is mainly for Martian exploration. After all, the gravitational pull of the Moon is only one-sixth of that of the Earth, while the gravitational pull of Mars is one-third of that of the Earth, and Mars has an atmosphere, so to land on Mars, you must not only consider the fuel used for the recoil rocket when the Falcon lands, but also the fuel required when the Falcon leaves Mars.

It is for this reason that the Falcon carries so much fuel. And these fuels are used to go to the moon, which is absolutely overkill.

However, in order to test the Falcon as a whole, Dr. Schmitz decided to let the Falcon land on the moon with a full load, which can be regarded as training for the future Mars landing.

On the falcon, Han Zheng received George. Immediately after Anthony's order, the separation button was activated, and the next moment, the Falcon slowly left the lunar spacecraft.

However, because the Falcon still has a strong inertia at this time, and the speed is still very fast, it must slow down and then land in a parabolic line.

At this time, the speed of the lunar spacecraft was quite fast, and not long after the falcon began to slow down, the lunar spacecraft was already invisible, and the falcon also began to descend in a parabolic path under the action of the moon's gravity.

The location of the Eagle Falcon was set by Dr. Schmitz in the Quiet Sea, just over ten kilometers from the Apollo 11 moon landing site. Dr. Schmitz chose the moon landing site here to commemorate the first successful moon landing of man.

Because the gravitational pull of the moon is relatively small, the descent speed of the falcon is not very fast, but through the glass window on the falcon, Tang Feng can clearly feel that the moon surface and the earth are coming.

As the craters on the lunar surface become clearer and clearer, the lunar surface becomes larger and larger, which means that the moon landing is about to reach its peak. The landing stage of the tide has passed. (To be continued.) )