Return to 2000: Captain of the Great Powers

Chapter 401 Gods bleed too!

Fly-by-wire, or fly-by-wire control, is the most solid foundation for Airbus to overtake Boeing, and it is the original driving force that enables Airbus to stand at the apex of the world's large passenger aircraft market.

Compared with the early days of the A300, Airbus had to beg grandpa and grandma to ask airlines to buy a few planes. After launching the A320 with fly-by-wire control, Airbus took a turn for the worse. The world's best-selling mainline airliner continues to advance.

The so-called control system is nothing more than allowing the aircraft control surface to change the state according to the pilot's will, so as to change the attitude of the aircraft.

Once upon a time, Boeing designed a set of exquisite cable transmission for this purpose, and it has been tested for decades.It is so perfect that Airbus never thought of surpassing Boeing in cable transmission from the beginning of designing the A320.

At that time, in the eyes of large airlines all over the world, the A300 could not be regarded as indispensable, it could only be regarded as better than nothing.Thanks to the old face of Airbus selling everywhere, the sales of the A300 are not too miserable.

Therefore, when Airbus sensed the huge demand for narrow-body aircraft other than 737 and DC-9 airliners in the world civil aviation market, it was determined to open up a new track for itself.

One of the great changes of the Airbus 320 compared to the 737 is the use of many composite materials. Of course, this behavior also makes the Airbus 320 vulnerable to lightning strikes. Another is the use of fly-by-wire control.

Although the Concorde has now come to the end of its life due to the Paris Air Disaster, as the "spiritual successor" of the Concorde, the Airbus 320 perfectly inherited the fly-by-wire control of the Concorde, and it also got the French Mirage With the assistance of the 2000 team, it finally created a new track for fly-by-wire control in the field of civil aviation airliners in addition to cable transmission.

Of course, the Concorde itself is a special case and should not be included in the scope of induction. Of course, even if you look deeper, the Concorde itself is inextricably linked to Airbus.

Therefore, the pioneering technology of fly-by-wire has become an extremely critical inflection point for Airbus to reverse its decline.

In this control method, the pilot's control is no longer directly connected to the aircraft control surface, but the pilot's control command is converted into an electrical signal, which is handed over to the flight control computer, and then transmitted by a cable to drive the corresponding hydraulic device. Control the rudder surface of the aircraft.

At the beginning, the flight control computer of the Airbus 320 used Intel's 80286 CPU, the frequency was only 10mHZ, and the running memory was only 2.5mb. It was such a rough "core" that overturned the entire aviation industry and created A giant aircraft manufacturer standing alongside Boeing.

Airlines are very fond of Airbus, even if some "little" accidents occurred during the test flight, but this will not make airlines lose patience with Airbus 320.Not to mention that British Airways and Air France treat the A320 like their own sons, they are naturally full of support. Even Boeing’s son, United Airlines, couldn’t help but order a few planes, which is poaching Boeing’s corner.

Moreover, because of the removal of the cable drive, the A320 greatly reduces the weight of the aircraft, and the use of composite materials also makes this feature more obvious.The extra redundant space can not only add a few more discharge brushes to avoid being struck too hard by lightning, but also allow the aircraft to be modified in a variety of ways according to the needs of airlines.

From small to large, there are 318, 319, 320 and 321. You can choose from various gears. The airlines are fascinated, not to mention how much I like it.

However, Xu Cang didn't like it!

Airbus has reduced the workload of flying by a large part, but Airbus' fly-by-wire system has made flying something like a video game.

That's right, in Xu Cang's view, Airbus has just gamified flight work.

Most of the time, Airbus can make pilots feel like duck to water because of its convenient control methods and powerful computer functions.However, in some special cases, Boeing's traditional transmission can save lives, while Airbus' fly-by-wire control will become a fatal knife.

In the first-class cabin, Xia Shuyue and Xu Cang seemed to be a little more sound asleep, and gently fastened the seat belt on him.

Although it was extremely faint, the sound of even breathing continued to reach Xia Shuyue's ears, which made her feel more at ease than thousands of words.

Perhaps, as Xu Cang said, he is already the luckiest of misfortunes.

The pistol bullet went straight through the shoulder, and the bullet didn't roll around in the body, except for blood loss and pain, which had much less impact than other situations.

Xia Shuyue sat quietly beside Xu Cang. After fastening Xu Cang's seat belt, she hesitated whether to give Xu Cang some water. Xu Cang's chapped lips could still be seen.

Seeing Xu Cang's pale and colorless face, Xia Shuyue only felt a pain in her heart.In 10 minutes at most, Xu Cang would have to be woken up again, because everyone in the cockpit, or to be precise, the entire plane was counting on him.

The final approach and landing will still be borne by Xu Cang.

The greater the ability, the greater the responsibility, but Xia Shuyue didn't want Xu Cang to accept this responsibility, he worked too hard.

"Wait a little longer." Xia Shuyue gave up the idea of ​​feeding Xu Cang water.

Just when Xia Shuyue was thinking wildly, suddenly, the plane rolled suddenly, and the slope was extremely obvious.Now, Xia Shuyue also has some flying experience, so the temperature may exceed forty degrees this time.

Xia Shuyue couldn't help complaining in her heart: "What are you doing!?"

There is no need for the people in the cockpit to do anything, just fly the plane to the predetermined area stably, and then let Xu Cang take over, can't this be done?
What Xu Cang needs most now is to rest. What should I do if Xu Cang wakes up with such a big change in state?
Although it seems that Richard Bayer and Xu Cang have a good relationship in private, Xia Shuyue still slandered a few words.

However, Xia Shuyue didn't fasten her seat belt after she sat down just now, and the sudden change in the state of the plane made Xia Shuyue feel weightless for a moment.However, Xia Shuyue reacted quickly and grabbed the handrail immediately without causing any serious consequences.

After thinking about it for a while, Xia Shuyue also started to fasten her seat belt after the plane stabilized a little bit. At the same time, she glanced at Xu Cang's seat belt, and was glad that she fastened Xu Cang's seat belt first. Cang wear a seat belt, then the consequences.
However, there was one thing that puzzled Xia Shuyue.That is, after the plane made a sudden and drastic slope change, the plane did not level off, but almost kept rolling.

"Are you turning?" Xia Shuyue thought to herself, maybe she encountered some kind of air current?

However, looking back, things don't seem to be that simple.According to the information she received just now, the plane should be flying directly to the west normally. At this time, the plane is already in an emergency state. Even if the follow-up communication is re-established, it should not guide the plane to make a big maneuver.

"Or is it the weather?"

blah blah blah!

Xia Shuyue had just buckled her seat belt, and was thinking about asking if there was any problem in the front cockpit.

She is not ignorant of Airbus. Although it was not long, Xu Cang assigned her a one-on-one theory teacher when she was studying at Yanshan Aviation School. Xia Shuyue put a lot of effort into it. Know that she has a good grasp, except for the lack of practical training.

Judging from the current situation, the problem of the aircraft is very complicated, and what she is worried about is the expansion of the fault. With Xu Cang's current state, he is not very able to accept more complicated problems.

No more energy!
However, at the moment when Xia Shuyue had this idea, the plane, which was originally in the situation of maintaining the slope, suddenly increased its slope and rolled at a posture of nearly [-] degrees. For such a moment, Xia Shuyue even felt that the plane It was about to turn backwards, Xia Shuyue was attacked by an obvious and continuous sense of weightlessness.

However, Xia Shuyue didn't react too violently, she forced herself to calm down, even though she was wearing a seat belt, her right hand was still holding onto the armrest, and her left hand was buckling Xu Cang's belt.

Although Xu Cang is also wearing a seat belt, but with such an exaggerated state change, no one can guarantee whether the passenger seat belt is useful or not.

However, Xia Shuyue was relatively calm, and there were bursts of screams from the front and rear cabins, which came from the flight attendants.Even for flight attendants with flying experience, the situation just now was extremely scary for them.

Perhaps it should be fortunate that there are very few people on the plane. If there are many people in the economy class, it is very likely that there are passengers who did not fasten their seat belts. The one just now is enough to throw an adult out.

At this moment, Xia Shuyue was really thankful that she fastened Xu Cang's seat belt just now.

If he was slower, the consequences would be unimaginable.

With Xu Cang's current body, if he was thrown out, he would probably be ruined.

However, fortunately, after the plane formed an extremely exaggerated slope, there was no unexpected change in the next step of the plane, but the plane has always maintained a huge slope, which makes the cabin always tilted.

Although there was no serious problem with Xu Cang being fixed by the seat belt, his head was shaken violently under the action of inertia, which woke Xu Cang up from his rest.

Many people should know that this kind of direct awakening is very stimulating to people.

When Xu Cangfu woke up, he felt his heart pounding, as if it was going to jump out of his throat in the next moment.

"What's the matter?" Xu Cang clutched his chest, trying to calm down his heartbeat, but he was more concerned about why the plane was in its current state.

Such a terrifying slope is obviously abnormal.

At this time, Xu Cang noticed that Xia Shuyue was by his side, even buckling his belt with one hand, so he grabbed Xia Shuyue's wrist with his backhand with his right hand: "Help me."

"You want to go to the front?"

Xu Cang only felt dry mouth at the moment, just now he took a rest without caring about drinking water, but now his throat felt like it was on fire, it was unbearable.

However, solving the current situation is the most important thing.

"Yeah." Xu Cang stroked his breath a little, he felt that his heart was beating too fast and his breath was unstable: "Anyway, it is impossible for the plane to maintain such a slope for a long time normally, and they haven't corrected it yet. Come back, there must be a problem, and it is an unsolvable problem."

At this time, the airport was tilted enormously, and Xu Cang could not walk over even if he supported the wall, so he had to rely on Xia Shuyue's help.

Xia Shuyue took a deep look at Xu Cang, but just paused: "Then hold me tight."

As she said that, she went to untie her seat belt first, then stood up and helped Xu Cang up.

Originally, Xia Shuyue had Xu Cang on her shoulders, but at this time the short distance to the cockpit was too difficult to walk.If something happens again, it may not be easy to use it on the shoulder, so Xia Shuyue directly wraps Xu Cang's right arm around her waist, and at the same time wraps her left arm around Xu Cang's waist to fix it.

Fortunately, they sat in the front row, not far from the cockpit, only a few steps, and the cockpit door was not closed.

Except for the crazy white man, everyone on the plane was expecting the plane to land safely. Whether the cockpit door is closed or not has no effect on itself, but it is convenient for Xu Cang to enter and exit.

With the current state of the plane, it would be a bit too troublesome to open and close the door if something went wrong.

Xia Shuyue supported the wall of the front cabin working room with her right hand, and helped Xu Cang go forward. At this moment, on the flight attendant's seat, the flight attendant noticed Xu Cang who was about to enter the cockpit for the second time.

At this time, the purser realized that the problem might be more serious than expected, and he looked sad.

Like the captain, she wanted money, but she didn't want to die.

"Mr. Xu Cang, can we survive?" the purser asked tremblingly.

Xu Cang glanced at her, originally he didn't want to answer, but suddenly, he said softly: "If you can survive, it's not because I want to save you."

Under the astonished gaze of the purser, Xu Cang slowly entered the cockpit.

As soon as he entered, Xu Cang found that the two people inside didn't even notice that he came in because they were too focused on dealing with the problem.

He patted Xia Shuyue's left arm and motioned her to go back and sit in the first class.

At this time, Xia Shuyue was very obedient and withdrew.

After Xia Shuyue left, Xu Cang did not speak immediately, but glanced at most of the failed panels, and suddenly said, "Is there a problem with the manipulation signal transmission?"

Richard Beyer and the captain were preoccupied with how to deal with the problem.

Under the control of the captain, the plane formed an extremely exaggerated slope, which made the two of them dare not continue to input control signals, and could only keep the plane on such an exaggerated slope.

When Xu Cang opened his mouth suddenly, the two people in front were startled. After noticing that it was Xu Cang who came in, the captain was obviously relieved: "Mr. .”

"Small problem?" Xu Cang sneered: "If my friend hadn't fastened my seat belt just now, I would have been thrown out by your actions. Do you think it's a small problem? Also, just pay attention Didn't you notice that the plane was descending because there was a bank on the plane?"

The captain looked a little embarrassed, the seat belts of the passengers were far less secure than those of the pilots.Although the state of the aircraft has changed a lot, there is no risk of the two people in the cockpit getting out of their seats.

However, the situation in the cabin is hard to say, especially when Xu Cang mentioned that he almost didn't wear a seat belt, it was indeed quite dangerous, and Xu Cang was not to blame for being angry.

As for the descent, it was true that Richard Beyer and the captain were too concerned about the sidestick.In fact, the throttle of the aircraft is not small, but on a large slope, the lift force is greatly decomposed, and the throttle is naturally not enough.

The speed of the plane's descent was not fast, so the two people in the cockpit were not stimulated so much that they didn't notice it.

With a little embarrassment, he increased the throttle, and the captain stabilized the altitude of the plane.

However, now that the electrical system failure has affected the display system, they cannot see the specific data of the engine, so they can only use the aircraft data to try out an appropriate thrust value.

Of course, this is not too difficult for a captain.

Richard Baier had a better relationship with Xu Cang, and instead of entangled with the previous problem, he immediately explained the problem: "The current situation should be what you said, the control surface of the plane cannot respond to the control of the crew at all, It is indeed possible that there is a problem in the transmission of manipulative electrical signals, but this situation should be rare."

"It's rare." Xu Cang didn't stand still, but patted the captain on the shoulder: "You come out."

The captain froze for a moment: "Do you want to take the seat?"

"Yes, I will control it next." Xu Cang said calmly.

The situation of the plane was far more complicated than he thought. If the plane was handed over to them again, who knew what would go wrong?
Although I'm tired and I don't know if I can hold on, but it's time to deal with it myself.

"Are you okay?" Richard Bayer saw Xu Cang's pale face, and his heart beat a drum: "Or, you are still approaching according to the plan"

"No need!" Xu Cang glanced at the captain indifferently: "Get up."

The captain also noticed Xu Cang's weak nature. Although he really wanted to hand over this hot potato to Xu Cang, his reason told him that Xu Cang couldn't last long. The best way is to let Xu Cang rest until he enters. It was not so early that Xu Cang started to worry.

So, he didn't get up immediately, but first looked at Richard Bayer.

Richard Baier sighed: "Forget it, get up."

The captain has the least right to speak in this cockpit. Richard Baier has said so, so he can only obey, so he quickly unfastened his seat belt.

Soon, the captain's right seat was vacated. Due to the gunshot wound on his left shoulder, Xu Cang had a hard time getting a seat. In addition, the cabin was tilted, so he took a lot of effort to get on the plane.

Xu Cang could only move one hand, so he couldn't fasten his seat belt at all.

After Richard Baier saw it, he unfastened his seat belt first, then turned his body to help Xu Cang, and apologized at the same time: "Xu Cang, I'm sorry, I still have to leave it to you in the end."

Soon, the seat belt was fastened, Xu Cang held the side stick with his right hand, and seemed to be trying to move the side stick.

But it was such a small movement that scared the captain who had just sat in the observer's seat and screamed: "Don't move!"

The captain probably also realized that his voice was too high, and lowered the volume of the last sentence: "I mean, I just moved the side stick a little bit, and I can be sure that under normal circumstances, the plane will never form an angle of more than ten degrees." slope, but."

"In the end it became the current situation?" Xu Cang frowned.

"First, the sidestick on my side had a problem." Richard Bayer added: "Airbus's fly-by-wire control has been tested by Concorde, and it can operate stably in supersonic and complex environments. It should be It is reliable in terms of stability. Moreover, Airbus’ fly-by-wire version has been optimized and should have stronger anti-electromagnetic interference characteristics!”

"If it's not a problem with the transmission cable, maybe the flight control computer is malfunctioning." Xu Cang fiddled with the call button on it with his right hand.

The control electrical signal of the side stick does not directly affect the hydraulic adjustment system of the rudder surface, but only after being processed by the flight control computer.

If the flight control computer itself has a problem in processing the control signal, it is equivalent to a problem with a person's brain, and various unintended situations will naturally appear in the reaction to the movement of hands and feet.

"If it's the flight control computer." Richard Baier's eyes lit up: "If there is a problem with the flight control computer, do you want to reset it?"

The captain asked in disbelief: "Pull the trip switch? Does this have no effect?"

Whether it is Airbus or Boeing, it is extremely not recommended to pull the jumper switch during the flight. Only in some special cases, it can be reset once by pulling the jumper switch.

The operation of the trip switch can usually only be carried out when the maintenance is present and is being maintained on the ground.

There are too many things affected by the trip switch. Once it is operated in the air, it is likely that in order to solve one fault, it will cause two or more other faults.

Richard Bayer also thought about this problem, at least now the plane can't stand more problems, so he still habitually handed over the decision-making power to Xu Cang: "Xu Cang, what do you think? "

Xu Cang licked his dry lips: "It's too early, it's too early to pull the switch, it's not that time yet."

"What about the current situation of the plane?" Richard Bayer asked worriedly.

Now the side stick of the plane is like a time bomb, and no one dares to touch it.Although this bomb should not explode if you don't touch it, you can't ignore it all the time, isn't it just a sword of Damocles?

Moreover, the slope of the plane is too high. If there is a severe airflow impact, if the direction is better consistent with the slope of the plane, the plane may not be able to maintain it under the superposition of the two phases, so it is really close to the situation of buckling.

Xu Cang has done the operation of inverting the aircraft, but this does not mean that for large passenger aircraft, inverting the aircraft is not a routine operation, and there is still a huge risk in it.

But if the flight control computer is not reset, Richard Baier does not know what else to do.

Under the failure of the electrical system, the ECAM system is not available, so that it is impossible to get guidance on troubleshooting.

"Shall I move the sidestick?" Xu Cang thought it would be better to experience it for himself: "You are right. Compared with the problems on the transmission cables, the probability of problems with the flight control computer may be greater. However, I prefer This glitch is intermittent, not persistent, should I try it?"

Not to mention the captain, Richard Beyer's reaction was obviously stressful and quite nervous: "Xu Cang, why don't we forget it, once there is an expected rapid state change, we can't control the plane."

"Isn't there still throttle and rudder? Can't the differential throttle and rudder be used to correct the plane?" Xu Cang asked rhetorically.

Now Xu Cang has no strength in his body, and he can't move the rudder much, but the accelerator is on his left, and he can't even move his left hand, so he can only let Richard Bayer do it.

For Xu Cang, the difficulty of fully controlling an aircraft can be reduced by only relying on the throttle, not to mention the rudder assist.

However, this kind of thing that is natural to Xu Cang is quite a challenging maneuver for a pilot of Richard Bayer's level.

The muscles on Richard Bayer's face stiffened, and in the end he didn't answer the question directly, but sighed softly: "If possible, don't move the sidestick, is it okay?"

Xu Cang froze for a moment, didn't say much, just nodded, and directly dismissed the idea of ​​moving the lever.

However, the problem is always there, he can't really ignore it all the time, otherwise the plane will have to circle in the sky all the time.

"The last manipulation was done by the right side stick?" Xu Cang asked suddenly.

Richard Baier nodded: "Yes."

"Then you suppress the sidestick signal from my side."

Unlike Boeing's control, the control side sticks on both sides of the Airbus are not rigidly connected, and the controls on both sides can be superimposed, but the superposition of the two cannot exceed the control limit range.

However, if both sidesticks are inputting control signals at the same time, a "dual control" alarm will appear.However, the failure of the electrical system now affects the warning system and does not produce a warning sound.

Simultaneous control of both sides is extremely taboo in Airbus flight. In order to prevent accidental dual control problems, there will be a red button on one side of the two side sticks. Whether it is left or right, as long as you hold the side stick, the red button Just on the thumb side.

This red button has two functions, one is to provide the function of manually disconnecting the automatic driving, and the other is to obtain the priority of manipulation.

Keep pressing the side stick on the side of the red button for a short period of time to obtain the control priority. If it is under normal conditions, there will be an electronic alarm, indicating that the left or right side of the crew has obtained priority, and at the same time, an alarm will appear in front of the crew on the other side. The red warning sign means that the control right on your side is temporarily suppressed.

If you keep pressing the red button on the sidestick for more than 40 seconds, it will completely suppress the sidestick signal on the other side, and some additional operations are required to restore it.

Suppressing one side's sidestick for a long time is not a common operation, nor is it a solution to control signal failure. This is just Xu Cang's experience.

Richard Bayer naturally knew that this was not a standard or recommended procedure, but after Xu Cang said so, he listened. After all, this did not seem to be a dangerous action. Even after restraining it, there are still ways to do it. recover.

"Ok!"

According to Xu Cang's request, Richard Baier began to press the red button on his side stick.As time goes by, after counting silently for more than 40 seconds, there is no indication in the cockpit. Of course, this is in the case of a malfunction, but as long as the logic of the sidestick is working normally, the sidestick on Xu Cang's side should be is suppressed.

Xu Cang waited for a while: "Richard, move the sidestick a little bit."

The corner of Richard Bayer's mouth twitched: "Is it still necessary to move the pole?"

"If the aircraft has an unexpected state change and the throttle is at two-thirds of the position, don't continue to control the input. In this way, the aircraft will not have major problems."

"Really?" Richard Bayer was very skeptical.

Xu Cang squeezed out a smile: "You should believe in the stability of the 320. When the height is sufficient and the throttle is appropriate, it will correct the excessive state deviation by itself. Even if you want to reset the jumper switch, you still have to try it in the end. Move the lever, it's a necessary step in verification."

Richard Baier was speechless, yes, no matter what you do, you have to verify it in the end, this step is unavoidable.

"Then I'll make a move, and I'll deflect it." Richard Bayer raised his hand to demonstrate to Xu Cang the extent to which he was going to pull to the left. He took a deep breath, hesitated, and gently flicked the side stick to the left. After a while, the range is very small.

To be honest, not only Richard Bayer, but also the captain sitting behind was heartbroken.However, to their surprise, the plane did not experience any strange state changes, but seemed to reduce the slope a little according to Richard Bayer's manipulation.

Richard Baier was stunned for a moment, and then he was overjoyed: "It works, it seems to be done!"

"Wait for a while, and then correct the aircraft status according to the range just now." Xu Cang also heaved a sigh of relief. It was his quick-witted attempt to completely suppress the sidestick signal on one side. In fact, there is no realistic basis, and it is completely helpless. lift.

Thankfully, it turned out to be really useful.

If there is none of these, then Xu Cang can only use the accelerator to land.

It's not that Xu Cang can't do it, but that Xu Cang's situation is very bad now, what hinders him is not his technique, but his body.

Xu Cang speculated that the solar storm may have suppressed the computing performance of a part of the flight control computer, as if the brain had crashed, and it could not input signals to it too fast or too frequently, and could only input control signals at a short interval at the same time.

However, Richard Bayer and the captain did not actually perform excessive manipulation just now, but problems still occurred, so the reason is not very clear.

Of course, no matter what the reason is, the crew does not need to figure it out at any time, as long as they know that the deviation is being corrected now, that is enough.

Although the correction speed is relatively slow, everything is developing in a good direction, isn't it?

Richard Bayer adjusted his mood a little bit, now that Xu Cang has taken the most important first step for him, and leave the rest to him, at least he still has confidence in such an operation.

"I'll level the plane first," Richard Bayer said.

Although at this time, the plane still had a large slope, Richard Baier was full of confidence.

However, before that, he needs to adjust the throttle of the disembarkation.

Due to the decrease of the slope, the decomposition of the lift force is less. At this time, there is no need for such a large throttle. In order to maintain the altitude of the aircraft, Richard Beyer needs to adjust the throttle, to be precise, to close it a little.

Without engine data, Richard Baier could only pull back the throttle lever a little by feeling.

This was a fairly routine operation, but to everyone's surprise, it was obviously an operation to close the throttle, but suddenly, the No. [-] engine suddenly roared, and the thrust increased rapidly without warning.

The problem is, only the number one engine on the left has increased thrust, creating a thrust differential for an instant.

If at normal times, this sudden thrust difference is at most a huge drift in an instant, it is still controllable, just like when a single engine occurs.

But now is not a normal time. The plane itself has a huge right slope, and the thrust of the left engine is much greater than that of the right engine, which makes the plane be driven to a crazy increase in slope.

Moreover, due to the excessive increase of the throttle of the No. [-] engine, the nose of the aircraft was lifted under the condition of excessive increase of the total throttle.In such a situation, the plane went straight to the right and tilted upside down.

spiral!

Under various unpredictable operations, WN3102 went into the spiral by mistake.

Perhaps Richard Bayer hadn't expected this situation at all, and didn't react immediately.In comparison, Xu Cang's reaction was very fast, even though his physical condition was very bad.

He lifted his left foot, trying to stop the spin of the plane before the second lap.

At the beginning of the spiral, the potential energy converted by the aircraft is not much, the speed is not accumulated very much, and the recovery is relatively easy.

If Xu Cang is in normal physical condition, he is sure to be able to change it in the first lap, but due to the objective physical condition, his movements are still a bit slower, but there is still probably enough time.

However, the accident did not stop. After the plane turned in a circle, it dived rapidly. Such a terrible fall made the blood in Xu Cang's whole body rush to his upper limbs under the action of inertia, and he felt that his already abnormally fast heartbeat seemed to be about to explode. As if, then, the bandage on the left shoulder that had been urgently stopped the bleeding suddenly burst out with strong blood.

The blood accumulated in the upper limbs, which caused the blood pressure of Xu Cang's upper limbs to increase suddenly. The shoulder wound was like a vent gate. Even though it was bandaged, a large amount of blood was still squeezed out.

Xu Cang had already lost a lot of blood, but this time, he felt dizzy, his head was heavy, and he almost lost the ability to think.

Unconsciously, Xu Cang's head drooped, and as far as he looked, he found that the nails of his right hand were gradually turning purple.

This time, Xu Cang's heart sank to the bottom.

Cyanosis!

He couldn't see the color of his lips, but since the cyanosis had already appeared on his nails, it is believed that his lips should also be blue now.

An indescribable restlessness struck, this was not Xu Cang's real emotion, but was affected by physiological factors.

This is a very dangerous signal, because it is a sign of shock!
(End of this chapter)