Chapter 421

Do your best, obey the destiny of heaven!

Gu Lu has done everything he can.

The rest can only obey the arrangement of destiny.

Gu Lu couldn't say how sure he was.

Because in the face of that extremely low margin for error.

Even the slightest influence of external factors may make the entire moon landing process fail.

Perhaps, this time, I really have to believe in metaphysics!

By the way, speaking of metaphysics, Gu Lu suddenly remembered a person.

Taking out his mobile phone, Gu Lu dialed Su Xi's number.

It's six o'clock in the morning.

It is estimated that Su Xi has not woken up yet.

The phone rang for a few moments before it was answered.

"Teacher Gu, what's the matter, call me so early in the morning, you don't know that you disturbed my sweet dream!" Su Xi's confused voice rang on the other side of the phone.

"Say, I wish me well!" Gu Lu's voice was heavy, and there was a hint of hoarseness in his voice.

Hearing Gu Lu's tone, Su Xi's sleepiness disappeared in an instant.

Su Xi didn't mean to joke anymore, and asked nervously and worriedly, "Gu Lu, are you in any trouble?"

"You don't care about this for now, say, I wish me well!" The headache was terrible, Gu Lu hissed and inhaled the cold air, and said in a serious tone.

"Congratulations...... I wish you all the best!" Su Xi stumbled out these four words, and then asked in an anxious tone, "Gu Lu, where are you now, I'll go over immediately!"

"You don't have to come over, besides, you can't come over, forget it, hang up first, I still have very important things to do here, I'll call you back later." ”

Gu Lu, who had already received the blessing buff from Su Xi, the European Emperor, hung up the phone decisively after saying this.

............

Command center.

Gu Lu leaned back in the chair, rubbing his slightly swollen temples while looking up at the big screen in front of him.

Now more than three minutes have passed since Gu Lu sent out the signal command.

The Chang'e-4 probe has not yet received a new command from Gu Lu.

The probe is still operating as originally planned, and is undergoing the final deceleration phase.

In the large screen, you can see it clearly.

The probe is gradually slowing down, while the distance from the lunar surface is constantly decreasing.

At a distance of almost two hundred kilometers, now only about one hundred and fifty kilometers remain.

Twenty seconds later.

It was exactly four minutes and thirteen seconds since Gu Lu's order was issued.

Theoretically, at this time, the probe's control and navigation system has received new operating instructions.

Gu Lu and Wu Zheng turned their heads at the same time to look at the person in charge of the GNC system not far away.

The person in charge glanced down at the computer, and his tone was excited, "The probe command and navigation system has received a new command!"

Successfully received the instruction!

Everyone in the command center breathed a sigh of relief at the same time.

But no one had a smile on their face.

It's one thing to receive an operation order, but whether a new set of operation instructions is feasible is another matter!

The crowd doesn't think so.

This new set of operation instructions designed by Gu Lu in just seventy-two seconds has the ability to support the general of the building!

But......

Just as Wu Zheng said.

Anyway, no matter what happens, the result can't be worse.

Then it's better to look forward to Gu Lu.

What if a miracle happens!

............

Three seconds later.

The main deceleration phase of the lunar landing process of the probe is completed.

Next, the second phase of rapid adjustment will be entered.

The hearts of everyone in the command center were tense.

They all knew that in the original operating instructions, the engine responsible for this stage was engine No. 2.

And now, the No. 2 engine is broken.

Everyone is not clear how Gu Lu solved this problem in the new operation instructions.

in the big screen.

The probe ends the final deceleration phase and enters the rapid adjustment phase.

Everyone can clearly see that the No. 1 engine, which was originally scheduled to break away at this moment, has not detached.

Rather, as soon as the rapid adjustment phase begins, a thrust of different angles and magnitudes is generated.

At the same time.

Engine No. 4 starts.

The variable thrust generated by Engine No. 4 and the thrust of Engine No. 1 are superimposed to enable rapid adjustment of the detector.

This......

Everyone's eyes widened at the same time.

Because the scene of the direct crash of the probe that everyone imagined did not appear.

The detector descends smoothly and adjusts the angle according to a certain acceleration.

If only engine number two had not been damaged.

The trajectory of the probe at this stage should be almost like this!

Things are already obvious.

That is, Gu Lu really used a new set of operating instructions to let the No. 1 engine and the No. 4 engine complete the work that originally belonged to the No. 2 engine.

Everyone turned their heads to look at Gu Lu in unison.

I saw Gu Lu leaning back in the chair, with a rare smile on his face.

............

The quick adjustment phase lasts about three minutes, which is a bit shorter than the final deceleration phase.

The detector undergoes a quick adjustment phase two minutes later.

The fuel in engine number one ran out.

According to the operation instructions entered by Gu Lu in advance, the No. 1 engine detached from the detector to reduce the load on the detector.

Engine No. 1 detached.

Engine No. 4 took care of the rest of the quick adjustment phase.

Since Gu Lu had already designed the operation instructions, the transition was quite smooth.

Merely.

The expressions on the faces of the people in the command center were immediately difficult to see.

They are well aware.

Engine No. 4 is responsible for the supply of variable thrust during the hovering phase.

But now that most of the fuel consumption is in the rapid adjustment phase, the remaining fuel of the No. 4 engine is certainly not enough to support the probe to hover in the air for too long.

And if you can't hover for too long, how can the probe get over the von Kármán crater?

Just now everyone was full of hope.

I really thought that Gu Lu could create miracles.

But now it seems that Gu Lu's approach is really no different from the act of demolishing the east wall and making up the west wall!

That's right!

The quick adjustment phase was successfully completed.

But if the probe could not land in the von Kármán crater, the previous efforts would still be in vain!

"Professor Gu, do you know that your design will reduce the time of the probe in the hovering phase, and the probe will not be able to operate above the von Kármán impact crater during the hovering time?"

He didn't mean to ask for sin.

It's just that Gu Lu's operation of giving them hope and making them feel desperate in the next second really makes him feel uncomfortable.

The successful completion of the rapid adjustment stage made Gu Lu's mood a lot easier.

Gu Lu looked up at the person in charge, with a faint smile on the corner of his mouth.

"I don't seem to have said that the landing site of the Chang'e-4 probe is still the von Kármán impact crater?"