Tang Yue nodded, very satisfied with this result.

If the situation allows, he also hopes to bring down the precious food and fresh water from the space station, and the survival material is life.

But when these materials could threaten the safety of the landing, Tang Yue decided to give them up without hesitation.

Cookies are good, but don't be greedy.

- Otherwise you'll choke.

"Is the twelve-ton Eagle flying ship sturdy enough to be attached to the Orion spacecraft by a docking mechanism?" Tang Yue asked, "Once it enters the gravitational circle of Mars, its force is completely different from that in weightlessness, can it hold up?" ”

Tang Yue's worries are not unreasonable, the only connection between the Eagle spacecraft and Orion is the docking mechanism, what will the lander be like? The fish clings to Orion like that, and the docking mechanism is its suction cup. But the strength of the suction cup is actually very weak, and both sides are in a state of weightlessness when in orbit, but Orion 2 will have to be thrust back and decelerate when entering the atmosphere, and the weight of the Eagle lander will be completely dependent on this fragile counterpart.

Once a break occurs, then the Eagle lander will crash.

However, Mai Dong could not tie the Eagle spacecraft firmly to Orion with a rope, and in the final stage of landing, the docking mechanism had to be loosened on time to allow the lander to get out of the crashed Orion in time.

"I've done the math." The old cat twisted the display around, "The lander docks with Orion 2 with a set of APAS-98 standard docking mechanisms, which is the most docking mechanism on the Joint Space Station, and at the same time the most robust docking mechanism, I said that the engineers on Earth designed it to be as strong as an anchor." ”

The old cat erected the Orion II model on the table, then picked up the cap and pressed it against the model.

"The attitude of the Orion spacecraft at the time of landing is vertical, and the force on the APAS-98 interface is longitudinal rather than axial, which also means that the weight of the Eagle spacecraft does not act directly on the hook."

The old cat clasped his paws together to explain to Tang Yue.

"The APAS-98 docking mechanism is responsible for locking the lander with six rotating latches, and the weight of the lander will be transmitted to the Orion fuselage through the latches when landing vertically, rather than pulling the latches horizontally, so it is not the interface that really bears the load." "The docking mechanism in this case can withstand a force of more than eighty thousand newtons, and the weight of the Eagle lander in the gravitational sphere of Mars is only five tons," said the old cat. ”

"You just have to give me a conclusion." Tang Yue raised his head, "Give me a version that is too long not to read." ”

"It's too long to look at the version: the docking mechanism won't break halfway."

"Then it won't hold on too hard and cause it to be unable to break away when it's time to leave, right?" Tang Yue asked.

Subjected to eight tons of pressure longitudinally, this is obviously beyond the normal working range of the docking mechanism, it is difficult to say whether any parts will be bent by this weight and cause it to stuck, and finally the Eagle lander could not be detached when it disengaged, and the crashed Orion was pulled into hell together.

"At the time of the final disengagement, the lander does not use normal fly-by-wire control." "After all, computers are meant to be dismantled, and a whole set of control circuits will fail, so we use an emergency disengagement system." ”

"Emergency disengagement from the system? The escape ...... Exploding bolts? ”

The old cat nodded.

"The emergency disengagement system of the docking mechanism uses pyrotechnics as the power to directly blow up the lock hook, and the start switch is under the seat of the commander, which is similar to the pilot's ejection rod, purely mechanical transmission, and uses a wire rope to transmit force." The old cat said, "Simple and crude, but very effective, so far...... There are no locks and hatches that explosives can't blow open. ”

·

·

·

Mai Dong tied the five chairs tightly with duct tape, and packed the lining materials of the Eagle lander and all kinds of small parts, and it took her more than twenty hours to empty the command module of the lander, and now only one chair and the main control console remain.

The center console and the system computer are more troublesome and not easy to disassemble, so you have to strictly follow the steps, so Mai Dong decided to throw out the obstructive garbage first, and finally deal with the console with many parts.

In the past, the Joint Space Station never littered its orbit, and this is one of the safety rules, and all household waste must be brought back to Earth and finally thrown into the atmosphere and burned up.

Mai Dong put on the extravehicular suit, the full-pressure extravehicular suit does not need to inhale oxygen and regulate pressure, it is very convenient to get out of the cabin, she dragged the bundled garbage, and slowly sent it to the edge of the space station by the super arm - any object, once it leaves the cabin, it will become dangerous, although it seems to be relatively stationary, in fact, both sides are flying at high speed at a speed of three kilometers per second, once one of the orbits or speed changes, it may cause an impact.

So Mai Dong can't just throw the garbage out of the capsule, she has to push these things far enough away that they can't threaten the safety of the space station.

Mai Dong dragged more than a hundred kilograms of debris, but she couldn't feel the weight lightly, and she could easily hook them with one finger.

"Miss Mai Dong, you are now sixty meters away from the core module of the United Space Station." The old cat's voice came out of the headphones, and the movement of the super arm stopped, and Mai Dong also stopped.

"Can you push it out now?" Mai Dong stood on the super arm, looking at the huge Mars in front of him, the sense of direction in low earth orbit is not obvious, sometimes Mai Dong will feel that Mars is above his head, and sometimes he will feel that it is under his feet.

At this time, Mai Dong felt that the red planet was suspended in front of his eyes, it was like a huge painting, and every detail on the picture was vivid.

"You can push it out."

Mai Dong held the tape in both hands and pushed the bundled garbage towards the Martian land with slow force. The debris was subjected to a slight lateral force as it detached from her hands, and began to spin slowly, and Mai Dong watched as they moved away from her at an even speed, gradually becoming smaller.

After a few minutes they were as small as grains of rice, but the tape and some unknown metal parts shimmered in the deep darkness of the sky reflecting the sunlight.

"From now on, Mars will have one more artificial satellite." The old cat said.

In a way, Mai Dong discarding the garbage is the same as the space station releasing the satellites, as long as you push them far enough, they will orbit Mars.

"Will they keep circling Mars like this?"

"Obviously not." The old cat replied, "Miss Mai Dong, you have pushed them into the Martian atmosphere, if there is no external force, their speed in this direction will not change, it will not be long, at most a dozen revolutions, they will fall into the atmosphere and burn up." ”

"It's going to burn." The girl whispered.

"Yes, they will burn."

Mai Dong took a deep breath and beckoned to the small satellite.

"Bye-bye...... Goodbye. ”8)