Day 5 (23) Super Big Arm

The Joint Space Station is at an altitude of 300 km.

The Eagle spacecraft is still 2033 kilometers from the capture point.

"Miss Mai Dong! Your physical indicators are abnormal! Can it still be sustained? The old cat saw the warning of the computer, and all of Mai Dong's physiological data were approaching the limit, his heart rate accelerated, and his blood pressure increased.

"I didn't ...... Affair...... Mr. Cat, I ...... Ok......"

Mai Dong replied, her eyes slightly open, her eyeballs were severely congested, and the field of vision in front of her was black.

The Orion ship was still shaking violently, like a ship jolting in a storm, and there was a loud creaking sound from nowhere, and it sounded like a structure had been twisted violently, and it was making a scream before it broke.

Looking through the porthole, you can see the brown-red earth of Mars, the rising sun illuminates everything, hundreds of kilometers of valleys and ravines from a three-hundred-kilometer high orbit, just fine and shallow lines, the majestic and magnificent world at this moment is coming, Mai Dong likes this scenery very much.

Witnessing such a scene that extraordinary people can imagine is like an ascension of the soul.

But now it's hard to even open her eyes, the violent tremor makes her five organs and six lungs churn, Mai Dong doesn't know how long this state will last, she feels that if she continues like this, she will die here sooner or later.

Mai Dong, hold on! Hold on!

She said to herself silently in the bottom of her heart.

Two thousand kilometers away.

The Eagle spacecraft did an unpowered taxi in orbit, somersaulting as it flew.

The lander's pumping computer had no idea how big it was poking its head, and it received the data transmitted by the spacecraft's various sensors in a step-by-step manner, and then sent it through the antenna. Even though the Eagle's attitude was completely unstable and it was rolling around, the computer still thought it was flying normally - it was because the old cat had turned off its control of the attitude control rocket.

The old cat completely cut off the control of the engine of the Eagle spacecraft computer, it did not dare to let the pump computer touch the rocket again, the Eagle spacecraft now has less than 20% of the fuel left, these fuels are the key to the final docking, if the computer has another nerve, blindly turns on the engine twice, and runs out of propellant, it will be all over.

It's too late to temporarily check and fix the bugs, so the old cat simply castrated the system computer.

Ten minutes countdown.

"Start the RD-0172 engine and start adjusting the attitude!"

The old cat gave instructions in the Kunlun station, and the signal was transmitted to the lander through the relay satellite. The rocket engine was activated, and the high-speed jet thrust back in the direction of the Eagle's rolling, and the gyroscope gradually curbed the rolling speed of the lander.

This is the only propellant left of RD-0172, and with a little is a little less.

The old cat stared at the central axis of the lander and gradually coincided with the predetermined direction, and at the same time, the fuel gauge on the screen dropped all the way, from 19% to 16% to 14%, and soon entered the red warning zone, and the old cat sweated in his heart.

“CONSISTENT PATH!”

The red window flashes, and then the attitude engine closes! Turn the course!

"Slow me down!" The old cat shouted angrily, the space station is 290 kilometers high, and the Eagle spacecraft is still 507 kilometers away from the capture point!

The relative speed of the Eagle spacecraft and the space station is as high as 20 meters per second, the old cat must slow it down, RD-0172 starts for the last time, this highly decorated Russian-made rocket has finally come to the end of its life, this battlefield veteran shoots his last bullet, it exhausts the last fuel in the tank, let out a last roar, and pushes the Eagle spacecraft back with all its might!

"Comrade RD-0172, Ula ——!" The old cat yelled, "Stop it for me!" ”

The relative speed of the Eagle spacecraft decreased rapidly.

The data was refreshed, and the computer once again gave a prediction of the trajectory of the Eagle spacecraft and the space station.

The trajectory of the lander is shown as a blue line.

The trajectory of the space station is shown as a red line.

The two lines are almost perfectly tangent in the center of the screen, and at the moment of meeting, the estimated height of the Eagle spacecraft is 284633 meters, and the estimated height of the Joint Space Station is 284696 meters.

There is still a gap of 63 meters.

The Joint Space Station is sixty-three meters higher than the lander.

In other words, the Eagle spacecraft will pass under the feet of the space station, and the two will pass by.

"Sixty-three meters short?" Mai Dong was taken aback, "Can you still let the altitude of the space station continue to fall?" ”

"No, it's too late to fine-tune the attitude of the space station, and rashly lowering the altitude may cause the lander to crash directly into the space station, and the Eagle spacecraft has now completely run out of propellants, and we can't control it." The old cat shook his head, "But this error is what we expected. ”

"So what now?" The girl asked, "Isn't there still more than 60 meters left?" How does this work? ”

"We don't dock!" The old cat replied.

"Not docking?" Mai Dong was stunned.

"Yes, we never said that we would dock with it, the lander is not controlled, the relative speed is too high, and the docking will inevitably fail." The old cat said, "We're going to capture it!" ”

"Capture? How to capture? Mai Dong was at a loss and didn't know what this meant.

Tang Yue's voice appeared in the channel, and he and the old cat said in unison: "Super big arm!"

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Super Big Arm.

Officially known as the Mars Space Station Remotely Controlled Robotic Arm System (MSSRMS), it is also known as the Canadian Super Arm (Canadarm70), which is the longest and largest space robotic arm ever built, and its predecessor is the highly decorated Canadarm2, the Canadian robotic arm on the old International Space Station.

But the robotic arm installed on the ISS is only 19 meters long, while the large arm on the Mars United Space Station is a full 70 meters long!

There are many robotic arms on the Joint Space Station, but this one is the largest and most conspicuous, it is manufactured by the Canadian Space Agency, the main structural material is a composite of metal aluminum and epoxy resin, with twelve degrees of freedom, very light and flexible, installed in the most stable and strong position in the center of the truss, the platform at the end of the boom can carry multiple astronauts at the same time, care and repair the space station and spacecraft.

The reason why the big arm on the Mars joint space station is so long is that the Orion spacecraft is too large, and if the robotic arm is too short, it is impossible to reach it, and it is very inconvenient to maintain.

The CSA people once slapped the table and yelled at NASA about this thing: "Seventy meters! Seventy meters! Do you know what the concept of 70 meters is? I tell you, even if I jumped out of this window and died outside, I wouldn't be stupid enough to make such a thing! ”

NASA: To do it or not? No, we're looking for the CNSA.

CSA: I'll do it.

Mai Dong turned her head in a daze, looking out the window, she could see that the huge white mechanical arm was slowly opening, the joints and bearings were rotating and locking, and then slowly leaving the truss, the girl suddenly realized what Tang Yue and the old cat wanted to do.

This is the last method of Tang Yue and the old cat, no wonder it is a crazy attempt...... They're not trying to dock with the Eagle, they're going to grab the craft!