Return to 2000: Captain of the Great Powers
Chapter 193 Miracle!God wants to die and I will not die!
Chapter 193 Miracle!God wants to die and I will not die! (Please subscribe!)
Too late, too late!
Previously, Xu Cang had calculated a glide trajectory with unparalleled mental strength, and at the same time had to devote his energy to complete the tightrope-like aircraft correction operation.
Whether it's mental arithmetic slides, or unimaginably harsh manipulations according to one's will, any one of them is enough to stump the world's top pilots, but Xu Cang withstood the pressure of the two mountains with his own strength.
However, even Xu Cang, under such a heavy burden, was at the end of his strength.Any outside interference would have a huge negative impact on Xu Cang, not to mention that the two captains wanted Xu Cang to give up the approach one after another.
In fact, to be honest, the two captains cannot be blamed.Because not every pilot is such a genius who sees everything like Xu Cang.In the case of being completely invisible, the trajectory of the descent was entirely based on a person's mental calculation, without any standard reference, and encountered terrain warnings.
From the point of view of a normal person, he must trust the airborne terrain warning system.
The airborne terrain warning GPWS on the 747 judges whether there is a risk of collision with the ground based on the radio altitude and the close rate.However, this system has an extremely fatal flaw, that is, it is impossible to judge the risk of collision with the terrain on extremely steep terrain or smoothly descending terrain.
Therefore, the EGPWS system, Enhanced Terrain Warning, was gradually used in later Boeing aircraft.This warning system does not scan the surrounding terrain, but the terrain data is originally stored in the aircraft database.The system uses the GPS signal as a positioning method, and then retrieves the obstacle situation near the aircraft in the database according to the position of the aircraft.
Since the scan of the radio altimeter is no longer given, it is natural to eliminate the omission of some dangerous terrains that are scanned.But this enhanced terrain warning system based on GPS signals and terrain database also has a very embarrassing problem, that is, it appears when the GPS signal disappears.
Because the enhanced terrain warning system first relies on GPS positioning, and then retrieves the surrounding terrain data of the corresponding position according to the position coordinates.But what if the GPS signal disappears, the enhanced terrain warning system will be confused, and it will not know which terrain data to call.
It is precisely because the Enhanced Terrain Warning System does not know where the aircraft is, it starts to randomly retrieve terrain data. If it happens to be transferred to a mountainous terrain with high mountains, the Enhanced Terrain Warning System will also determine that the aircraft has encountered a risk of collision. , while issuing a warning, the so-called false warning.
Under certain extreme conditions, even if the aircraft is flying safely at an altitude of [-] meters, the terrain warning will sound suddenly. This is the enhanced terrain warning convulsion.This is often referred to in the industry as hitting a "glass mountain".
British Airways 1009 has been flying in the volcanic ash for too long, and the volcanic ash debris will definitely cause damage to the exposed GPS antenna, so Xu Cang didn’t feel it when he saw the left and right GPS failure consultation information appearing in the CDU draft column Accident.
What makes Xu Cang smarter than ordinary people is that when others know of a failure, they only think about how to deal with it.But Xu Cang is not only thinking about how to deal with it, he also thinks about other problems that will be extended from this fault in advance. In this way, when the extended problem arises, he will be calm and unhurried.
During the approach of the satellite landing system, all GPS fails, which means that the satellite signal cannot be obtained, and the entire approach must not go on.
Not only Xu Cang knew this, but also the responsible captain and the second captain.However, the continued approach afterwards was the result of Xu Cang's comprehensive analysis of various situations.
Ever since Soekarno-Hatta Airport began to regret accepting its own plane, Xu Cang knew that the person in charge of Soekarno-Hatta Airport was extremely cautious and would never take responsibility for himself.
Now it is not a problem with the ground equipment, but the GPS antenna of their own aircraft is out of order. There is an essential difference between the two.
If there is a problem with the ground equipment, then Xu Cang will definitely go around immediately without saying a word.At least in a low-altitude environment, the aircraft can survive in low-concentration volcanic ash for a while, and perhaps during this time, the ground equipment can be repaired.
However, if the GPS antenna on the plane is broken, it is broken. In view of the limited conditions, it is impossible for someone to climb outside the plane to repair the antenna, which eliminates the possibility of maintenance.
In other words, the only way for the satellite landing system was completely blocked.
The blind landing was no longer available, and the satellite landing system was also unavailable. Xu Cang could even imagine how the Soekarno-Hatta Airport would shirk and refuse to let the plane try to land.
So, that is to go all out!
However, all this was wiped out by a false warning of terrain due to a loss of GPS signal!
"Xu Cang!" The second pilot stared blankly at Xu Cang's side face, the blood from his nose dripped onto the floor, full of a sense of desolation and powerlessness.
Xu Cang let out a long breath, his mouth was filled with the smell of blood like rust, at this moment, it seemed that Xu Cang's most primitive survival instinct had been aroused.
Thin bloodshot eyes appeared in his eyes, which looked extremely hideous and terrifying.
The short mental calculation process of less than 1 minute has consumed almost all of his energy. If he flies away, he will definitely not be able to do it again.
This approach was his last chance, his last chance to take control of his own future.
Fate has strangled him by the throat, but this will definitely not make Xu Cang succumb!
Fall, drop the plane, and then, break fate, survive!
At this moment, from the perspective of the responsible captain, after the mental calculation process was interrupted, Xu Cang seemed to have lost his soul and was in a daze.
Admittedly, they may have been wrong, and it was really just a false terrain warning caused by the loss of the GPS signal, or maybe they had really killed their only chance of survival.No matter what, now there is no way to land again, and to forcefully land again is courting death.
At an altitude of [-] feet, the captain in charge held the steering wheel tightly with his left hand. He had reached the limit of intervention: "Xu Cang, let's go!"
The big mistake has already been made, why are you still obsessed with it?Let’s go around first, then we’ll make plans later!If Xu Cang couldn't respond to this sound, then the responsible captain would take over the control of the plane by himself, and he couldn't just watch the plane fall into the abyss.
But with this roar, Xu Cang raised his head abruptly, his eyes burst into a bright light, he saw it, saw the road of severance continue again, saw the last ray of dawn before the darkness swallowed everything!
Finally, Xu Cang moved!
Suddenly!He stepped up the accelerator!Accompanied by the roar of three engines, the downward momentum of the plane was quickly stopped.
Seeing that Xu Cang finally stepped on the accelerator, the captain in charge secretly breathed a sigh of relief, Xu Cang finally came to his senses.However, before the responsible captain was happy for a moment, the second captain suddenly shouted: "Thrust! Xu Cang, you haven't added the go-around thrust!"
With only three engines running, if you want to go around the plane, you need to increase the throttle to almost the maximum.However, Xu Cang didn't do that, he just increased the throttle to [-]/[-] of the full thrust, which is definitely not the thrust that a go-around should have!
Seeing that Xu Cang's thrust setting was not enough, the second captain already had doubts, and then looked at Xu Cang's pitch attitude setting, and his face immediately changed wildly.
Xu Cang didn't lift the plane up, but just kept the plane's track indicator on the horizon.
"This isn't a go-around, it's leveling!" The second captain was sweating coldly, and he understood Xu Cang's thoughts.Xu Cang didn't give up the idea of approaching at all, he would continue to land!
Because the glide path of the previous mental calculation was disturbed by external force, the plane could no longer maintain the accurate glide path, that is, it could not descend without authorization.
Therefore, Xu Cang stopped descending when the altitude was [-] feet. In order to ensure that there is no terrain threat, Xu Cang will continue to approach at a height of [-] feet.
After figuring out this terrifying idea that made him feel jittery, the second captain couldn't help it anymore: "Xu Cang, do you still want to land? There is no guidance now, and you don't even have a DME value. It might land!"
Generally speaking, the instrument approach system will be accompanied by DME equipment. DME stands for Distance Measuring Equipment. It is a very common ranging equipment that can provide the distance value between the aircraft and the DME equipment.
The reason why the instrument approach system is generally equipped with DME is that after having the distance display during the approach, the pilot can calculate the height-to-distance ratio through the distance to judge whether he is above or below the standard glide slope, so that Make reasonable corrections.
However, the VOR station on runway 27 is a pure VOR station without DME equipment, so it can only provide guidance in the horizontal direction without displaying any distance information.
Why did the second captain feel that Xu Cang's intention to continue approaching was just messing around?
In fact, the location of the VOR station on runway 27 is quite subtle, just at the head of the runway.If you have a DME display, at least you can use the DME value to judge how far the aircraft is from the end of the runway.
Now the outside world can't see, without the help of DME, they don't even know when they fly over the runway!Moreover, this is not taking into account the last amendment.
Even if Xu Cang could clearly recognize when he reached the sky above the runway, what about the subsequent [-]-foot altitude?
Yes, the VOR station can still provide horizontal guidance.However, its accuracy is far from being comparable to that of the blind drop signal.It is possible that there is no deviation from the course on the instrument, but in reality, the aircraft still deviates from the center line of the runway.
This has nothing to do with the manipulation technique, but the accuracy of the VOR station itself.The reason why non-precision approaches such as VOR require more severe weather conditions than precision approaches is because the accuracy of non-precision approaches is not high enough. Even if it is guided by navigation, there is still a large deviation at the moment of visualizing the runway. .
If the non-precision approach is the same as the blind landing, the pilot is only given a correction space of 60 meters in the vertical altitude, and the pilot may not have time to make corrections.
It is because of this expected difference in the difficulty of correction that the minimum descent altitude for a non-precision approach is usually more than twice the decision altitude for a precision approach.In this way, after entering the visual stage, the pilot can more calmly make final corrections to the aircraft.
Even if Xu Cang could fly over the runway, how would he go down the last [-] feet?Blind, all by luck?
The captain in charge also reacted at this moment, he directly grasped the shafts of the three thrust handles with his right hand, hoping to push the thrust up.However, under Xu Cang's control, the three throttle levers remained motionless like a rock.
"I don't need DME, the VOR station itself can provide enough information." Xu Cang said coldly, his words were full of undeniable determination: "Listen to my orders, I will lead you to live!"
However, the first half of Xu Cang's words fell into the ears of the second captain like a thunderclap, and a flash of light flashed in his mind, and suddenly, he seemed to understand Xu Cang's thoughts: "You mean backwards?" ?”
In the control room of the airport tower, controllers are closely watching the status of British Airways 1009.Prior to this, the aircraft had maintained a relatively uniform rate of descent.
However, all of a sudden, the plane, which had been maintaining a continuous descent, began to gradually reduce the rate of descent, and all this fell into the eyes of the controller.
"Well, what's going on?" The controller just had a strange thought, but he didn't have any special reaction. When the plane is affected by the airflow, there will be short-term fluctuations in the descent rate, but usually within a few minutes It will return to normal in a short time.
However, at the moment when the controller was stunned, he directly saw the descent rate of British Airways 1009 directly to zero.
"A go-around?" This was the controller's first thought, and he was already waiting for the crew's report.However, after waiting for two seconds, the controller finally noticed something abnormal, and the plane actually maintained an altitude of about [-] feet and stopped descending!
The controller was stunned for a while, and found that British Airways 1009 really did not descend or ascend, and it was really low altitude to maintain altitude, which was extremely weird.
At this moment, even if the controller does not understand the specific approach principle of the pilot, he also knows that the plane is definitely not on the correct track at this moment, and there are too many deviations, which cannot be explained by human error.
"British Airways 1009, is your altitude okay? Why didn't you descend?"
After waiting for a second or two, Xu Cang's indifferent but firm voice came from the radio: "We can see the runway, so we turned to approach."
This sentence was said in English, but the tower controller was stunned on the spot.He stood up slightly and glanced out of the tower glass, but it was still pitch black, the lights in the airport were also faintly visible, and the visibility was still extremely bad.
"Can you see the runway at [-] feet?" The tower controller was dumbfounded by Xu Cang's call.In this era, some rules are not very standardized, such as the practice of directly switching from an instrument approach to a visual approach.
It is actually illegal to switch from an instrument approach to a visual approach midway.First of all, let’s not talk about the extremely harsh conditions for visual approach. In the final stage, the approach method cannot be changed at will. An instrument approach is an instrument approach, and a visual approach is a visual approach. Just how to fly?
However, in the year 2000, civil aviation in many countries was still in its infancy, so it was really indulgent and unrestrained, and the constraints of rules and regulations were not strict.Therefore, the controller never felt that something was wrong because Xu Cang changed the approach method. What confused him was the fact that Xu Cang mentioned that he could see the runway at an altitude of [-] feet.
You must know that the vertical visibility of Class I ILS is only 1009 feet. If the crew of British Airways [-] can see the runway at [-] feet, doesn’t that mean that the current weather conditions at the airport are more than Class I? Can take off and land normally.
However, from a visual point of view, it doesn't look like the weather outside at all.
The reason why Xu Cang used the excuse that he switched to visual approach is because there are relatively few flight restrictions on visual approach.If it wasn't for the fact that he switched to visual approach and maintained level flight for a long time during the final approach, that idiot would know something went wrong.
Of course, it is quite strange to maintain level flight even with a visual approach, but it is a little easier to accept than an instrument approach.
The tower controller took another look outside. He couldn't accept the fact that the airport was in the category of weather, and he didn't care whether British Airways 1009 was about to land. Can you really see the runway? The weather conditions reported by the airport don’t even meet Category III standards.”
But after the tower controller asked the question, there was no response on the radio at all.
The tower controller looked at the radar, and the plane was almost over the runway, but the altitude was still kept at [-] feet.At this time, even the tower controller realized that something was wrong.
"There is a problem, there is definitely a problem." He hurriedly picked up the microphone and shouted again into the frequency, his words were full of urgency: "British Airways 1009, why haven't you landed yet, please report your intention."
However, there was still no response to this call.
The tower controller didn't believe there was a problem with the radio failure, and his face suddenly turned pale.He vaguely sensed what British Airways 1009 was going to do
They're going to land forcibly!
Just as the tower controller had this idea, everything in the cockpit confirmed his idea.
That's right, Xu Cang is going to land forcibly!
When approaching the end of the runway, the VOR pointer began to deflect sharply. This was not the reason why Xu Cang deviated from the course, but a precursor to the impending backhanding.
The full name of VOR is VHF Omnidirectional Beacon, which is a common navigation device in the aviation industry.Unlike the NDB non-directional radio beacon, the VOR has a direction indicator, that is, the VOR pointer on the aircraft will point to the VOR station in real time.
This feature of pointing to the VOR station in real time will lead to a situation, that is, when the aircraft passes the VOR station, the VOR pointer will reverse 180 degrees, which is what the second captain said before.
Usually the VOR station and the DME station are installed at the same site, which can provide both direction information and distance information.However, Soekarno-Hatta Airport is really rare, it is a pure VOR station.
Without the distance information of DME, Xu Cang couldn't be troubled at all.Xu Cang used the feature of the VOR reverse needle to judge the timing of flying over the VOR station, and because the VOR station happened to be at the end of the runway, the moment of the reverse needle was exactly the moment when Xu Cang entered the sky above the runway.
However, it is not enough to determine the timing of entering the air above the runway, because the aircraft needs to descend and enter the final correction. Even if the VOR course guidance is followed accurately, there will still be errors in the end.
Therefore, Xu Cang needs to do another thing.Previously, determining the timing of entering the air above the runway by the method of backward stitching was nothing more than a trail, and the follow-up actions were the real moment of life and death.
The controller's call was still echoing in the cockpit, but it was ignored.
"Xu Cang, this runway is 4000 to [-] meters long, but your approach altitude is too high, is the runway enough?" The captain in charge completely believed Xu Cang at this time, and what he cared about now was whether the plane could go down or not. And whether it can stop at the end of the runway after landing.
Generally speaking, the height of the runway threshold is fifty feet, which is the most standard.Of course, some pilots will approach at a slightly lower altitude in order to make the final round more comfortable.
Under normal circumstances, high approach is more difficult to do, because it involves the problem of descent rate control at ultra-low altitude.However, the height of Xu Cang's entry this time could no longer be described as too high, it was six times the standard entry height, which was really ridiculously high.
If the entry altitude is too high, the final touchdown point will continue to move forward, which means that the distance for the aircraft to stop will become smaller and smaller.
Although the runway of 4000 meters is quite long, but for a behemoth like the 747, the runway of 4000 meters is actually not that much margin.
Moreover, and more importantly, whether the aircraft can descend after entering the air above the runway, and how to descend, these are beyond the comprehension of the responsible captain.
If the timing of the descent is delayed, the remaining runways will be even more precarious.
In short, even if he chooses to trust Xu Cang helplessly, the responsible captain still feels very bleak about his future.
Just as the captain in charge asked this question, Xu Cang suddenly said: "Pull the open ground logic trip switch on the landing gear for me!"
The second captain was shocked by Xu Cang's request on the spot. Xu Cang's thinking jumped too fast, he couldn't keep up with Xu Cang's rhythm at all!
However, at this moment the pointer on the VOR indicator has turned ninety degrees!
"Quick! Unplug the open ground logic trip switch!" Xu Cang roared.
"Fuck!" The second captain, who was completely confused about the situation, really believed Xu Cang unconditionally at this moment, and he didn't care what Xu Cang wanted to do, and immediately got up and drove away.
The second captain didn't need to search for any experience, he directly located the open ground logic switch in the landing gear area, hesitated for a moment, and pulled it out instantly.
"Xu Cang, pull it out!" The second captain shouted.
At this moment, the VOR pointer on the plane was about to reverse, Xu Cang did not wait for the pointer to completely reverse, but began to descend ahead of time, but Xu Cang artificially controlled the descent rate, maintaining a relatively small descent rate of about [-].
What a perceptive person Xu Cang is. On the way back, he consulted the topographic map of the runway entrance of Soekarno-Hatta Airport.
The final clearance of runway 27 of Soekarno-Hatta Airport is indeed quite poor, but there are no obstacles near the end of the runway. Therefore, it is no problem to lower the altitude slightly earlier.
The [-]-foot entry height put too much pressure on Xu Cang, so much that Xu Cang had to descend early to lower the actual entry height as much as possible.
However, even though Xu Cang knew that there was no threat from the terrain below, he still couldn't let the plane descend too fast, because he was still not sure whether the plane was precisely above the runway.If you go down too fast, if there is a large deviation after visualizing the runway, there will be less room for Xu Cang to correct it.
"It's reversed!" The responsible captain, who had been paying attention to the VOR pointer, reminded Xu Cang the moment he saw the pointer completely reversed.
Xu Cang's eyes moved down, but he really saw nothing.At this moment, the runway lights of the airport should be turned on to the brightest, especially at night, but the difference is less than three hundred feet, and Xu Cang didn't even see the shadow of a light.
However, Xu Cang was not frustrated by the absence of runway lights, as he had expected it before.If the runway lights could be seen at three hundred feet, the measuring equipment at Soekarno-Hatta would all be sent to the dump.
Therefore, Xu Cang needs to do something at this moment.
At this moment, both the responsible captain and the second captain held their breaths, and finally, finally, they were about to see how Xu Cang completed the final descent!
So under the extremely shocked eyes of the two, Xu Cang pushed the No. [-] and No. [-] engines forward with his left hand respectively, then pressed the timer, and finally pulled up the reverse thrust of the No. [-] engine.
The responsible captain and the second captain saw Xu Cang pull up the No. [-] engine in the air to reverse thrust, and their hearts trembled on the spot, especially the second captain. He finally knew why Xu Cang asked him to pull the jumper switch of the air-ground logic. up.
Thrust reversers in the air can be dangerous. Nearly nine years ago, a Boeing 767 accidentally opened its thrust reversers during a flight, and the aircraft fell apart shortly thereafter.
Therefore, whether it is Boeing or other aircraft manufacturers' aircraft, they have worked hard to limit the reverse thrust, and the most important one is to suppress the reverse thrust in the air.
In fact, if in normal air operation, even if the thrust reverser is manually pulled, the thrust reverser actuation device will not work.This is written into the behavioral logic of the aircraft.
Therefore, if Xu Cang wants to turn on reverse thrust in the air, he must suppress the air-ground logic system of the aircraft.However, the air-ground logic system of the aircraft is attached to the landing gear, and there is no button or switch on the panel that can be directly closed.Therefore, Xu Cang could only ask the second captain to manually unplug the relevant jumper switch.
In many cases, it is not allowed for the crew to pull out the trip switch by themselves, because it will bring some unknown conditions.However, Xu Cang obviously couldn't control so much.
It was under the eyes of the responsible captain and the second captain who were almost terrified, even the No. [-] engine turned on reverse thrust not at idle thrust.Almost at the moment when the thrust reverser was turned on, the fuselage of the aircraft trembled extremely violently.
Why Xu Cang needs to increase the throttles of the No. [-] and No. [-] engines before pulling up the No. [-] thrust reverser, it is to maintain the altitude and speed of the aircraft when the No. [-] thrust reverser is turned on.
Of course, this situation will definitely not last for too long!However, Xu Cang did not intend to let this dangerous situation happen for too long.
ten seconds!Ten seconds is the limit that Xu Cang can tolerate!Nine years ago, Lauda Flight 004, which crashed due to the accidental opening of the thrust reverser in the air, took only 22 seconds from the thrust reverser opening to disintegration.
Xu Cang is unwilling to repeat the mistakes of Lauda Flight 004.
At the moment when the responsible captain was afraid of Xu Cang's crazy actions and was thinking about whether he should take action to stop it in time, his eyes froze suddenly, and saw a slight light flickering in front of the originally dark place.
Those are runway lights!
However, the light is faintly visible, as if it exists, and it seems to be an illusion, making it hard to see clearly.
However, it was this illusory light that directly dispelled the idea of the responsible captain intervening in Xu Cang.At this moment, the responsible captain's thoughts changed, and he seemed to understand Xu Cang's thoughts.
That is to blow away the volcanic ash in front of the aircraft with the huge forward airflow generated by reverse thrust at ultra-low altitude, so that the crew can see the runway lights.As long as the crew can see the light, it has a reference and can fall.
It can only be said that Xu Cang's idea is simply a work of genius.The idea of using the forward rushing airflow of reverse thrust to push away the volcanic ash can be imagined.
However, the concentration of volcanic ash this time was so high that only a gap was opened in front of the airflow generated by the reverse thrust. What the crew could see was only unreal lights, which could not be used as an accurate reference at all.
"Is it still not working?" The captain in charge murmured.
We have come to this point, we have already seen the slight lights of the runway, and the chance of survival is close at hand but elusive.
At this moment, Xu Cang's whole body was full of energy, and the 630 muscles in his body were tense everywhere.
Can't wait any longer!
Now the plane is consuming the braking distance after landing every second. If you wait any longer, even if the plane can land, it will rush off the runway, and you are close to death.
So in the fifth second, Xu Cang clenched his teeth so hard that he was about to burst and bleed. His left hand pushed the No. [-] engine directly to the front without warning.
The fuselage, which had already been trembling violently, suddenly seemed to be disintegrated. The huge airflow of the No. [-] engine hit the reverse thrust flap. stream door.
Even though the reverse thrust system was almost destroyed, the instantaneous forward air flow directly washed away the volcanic ash in front of it.
Finally, finally!Xu Cang saw a clear runway center line light!
However, just when Xu Cang wanted to correct it according to the light, the volcanic ash that had been blown away was about to close up again.But the next moment, accompanied by a loud roar, the air inlet and outlet of the No. [-] engine sprayed out majestic pillars of flame at the same time, and the huge impact force it carried directly swept away all the volcanic ash around the plane.
From the perspective of the controller, a vortex was inexplicably set off in the endless deep space darkness above the runway, as if it was going to swallow everything.At the moment before he understood it, a little light flashed in the vortex, and then it was like a muffled thunder, and it seemed that a round of scorching sun was wrapped in it, exploding infinite rays of light at the innermost part, and at that moment it exploded over the runway. bright.
The No. 747 engine was scrapped in place under full thrust reverse, but it has to be said that the quality of the [-]'s engine is really impressive.After such a huge explosion, the shock wave only escaped from the front and rear, and the engine cowling firmly bound the blast area inside the engine.
Under such frantic shock waves, the volcanic ash that was supposed to be closed was swept away, and a part of the runway was perfectly displayed in front of Xu Cang.
At this moment, how could Xu Cang let go of this once-in-a-lifetime opportunity bought by scrapping an engine?
When it was time, Xu Cang directly reduced the thrust of the No. [-] and No. [-] engines by half, but not completely.It is true that Xu Cang urgently needs to descend, but at this moment the plane is still about [-] feet away, how can such a high altitude directly stop all the throttle?
If all of this is collected, the entire 747 will be smashed down, and it will be the end of the plane crash.
While retracting the No. [-] and No. [-] engines, Xu Cang put the throttle of the No. [-] engine directly to idle, and then pulled up the fuel control switch of the No. [-] engine to cut off its fuel supply to avoid secondary explosions.
However, maybe it was really the explosion of the No. 747 engine just now that shook Xu Cang's mind, or maybe Xu Cang really didn't fly the [-] so much, and he didn't have that fine control over the throttle. The throttle on the number three engine was overcharged.
When the 747 passed the last fifty feet, the reporting frequency of the radio altimeter had already caught Xu Cang's attention.As soon as he reacted, he stepped up the throttle of the No. [-] and No. [-] engines.
However, there is a certain delay in increasing the thrust of the turbofan engine, and the inertia of the 747 aircraft is too great. When the thrust of the No. 747 and No. [-] engines was just added, the wheels of the [-] hit the road directly and severely. On top of that, Xu Cang's heart, liver, spleen, lungs and kidneys were almost torn apart.
Just this moment, Xu Cang wondered if the plane was going to disintegrate.
However, this is just a thought.The moment the plane touched down, Xu Cang was about to pull up the thrust reversers of the No. [-] and No. [-] engines, and the captain in charge had already manually pulled the speed brake to the maximum.
When they actually landed, they were horrified to find that the touchdown point of the plane had crossed the middle circle of the runway, that is to say, they had less than half of the runway to slow down.
Xu Cang originally wanted to use the maximum automatic brake, but seeing the situation, he immediately switched to the maximum manual brake.Xu Cang stepped on the brakes directly, and as the runway centerline lights began to turn red, Xu Cang's heart suddenly tightened.
This shows that there are not many runways left!
However, the deceleration effect of the 747 under the huge inertia of the plane still did not satisfy Xu Cang.
"It's not enough, I can't stop!" The second captain had such good eyesight that he immediately felt that the remaining runways were not enough.
Not only the second captain, Xu Cang also had this idea, but he has used all the deceleration methods, what else can he do?
Suddenly, Xu Cang saw that the lights on the center line of the runway had all turned red, and his heart suddenly tightened.
"Not good!" The captain in charge shouted.
At the moment when the responsible captain's voice fell, the end lights at the end of the runway were already faintly visible.
The plane is about to run off the runway!
Suddenly, Xu Cang saw a [-]-degree exit road on the left side of the end of the runway. He recalled a little, this exit road was facing a far apron, and the looming light of the control tower was already reflected in Xu Cang. Cang's eyes.
In the previous research on the airport map of Soekarno-Hatta Airport, the apron corresponding to this departure road should be used for deicing of slow trains, and there should be no aircraft staying now.
Therefore, Xu Cang made a decisive decision, stepped down on the rudder, and before the captain in charge could react, he went straight to the exit lane on the left.
"Xu Cang, the control tower is ahead!" The captain in charge understood Xu Cang's meaning, but the center of the apron opposite the exit road was the control tower. Didn't they just hit the control tower when they rushed out like this?
However, Xu Cang didn't care about these, and directly drove the plane into the apron with the maximum brake.
So, on the tower, the controller clearly saw the navigation lights representing the strobe lights of the aircraft rushing all the way in the dark, heading straight for the tower.
The plane did not take the entrance of the apron after leaving the exit road, but the wheels rushed directly into the apron brutally after crossing a short section of grass.
Under the illumination of the landing headlights, the whole picture of the apron was displayed in front of the crew, and there was really no plane.However, the small building in front of the base of the tower is already close in sight, and this small building is made of glass as the curtain wall. Under the light, it is so close that the crew can even see the reflection of the plane.
Time passed, not only the people on the control tower, but also the two captains held their breath, only Xu Cang stared at everything in front of him resolutely.
Finally, the behemoth 747 exhausted its last trace of strength, and its speed was still reduced to an undetectable level.But at this time, the nose of the plane had already approached the front of the glass curtain wall, and the light reflected from the landing headlights made Xu Cang's eyes a little bit dizzy.
Suddenly, the plane staggered forward, and then with a bang, the plane finally stopped.
"Stop!" The captain in charge let out a roar of ecstasy after the initial shock, and the moment he roared, the glass curtain wall against which the nose was pressed exploded and shattered into countless pieces.
Xu Cang looked at the shards of glass scattered on the ground before, and the dreamy feeling of the rest of his life finally became real, it was so wonderful.
Then, a surge of unstoppable passion rushed to the sky, Xu Cang raised his head to the sky and screamed, and Xu Cang's cry of fighting against fate resounded in the dark field of the airport!
It's the last day, and if you don't vote again, the monthly pass will be invalidated!
(End of this chapter)
Too late, too late!
Previously, Xu Cang had calculated a glide trajectory with unparalleled mental strength, and at the same time had to devote his energy to complete the tightrope-like aircraft correction operation.
Whether it's mental arithmetic slides, or unimaginably harsh manipulations according to one's will, any one of them is enough to stump the world's top pilots, but Xu Cang withstood the pressure of the two mountains with his own strength.
However, even Xu Cang, under such a heavy burden, was at the end of his strength.Any outside interference would have a huge negative impact on Xu Cang, not to mention that the two captains wanted Xu Cang to give up the approach one after another.
In fact, to be honest, the two captains cannot be blamed.Because not every pilot is such a genius who sees everything like Xu Cang.In the case of being completely invisible, the trajectory of the descent was entirely based on a person's mental calculation, without any standard reference, and encountered terrain warnings.
From the point of view of a normal person, he must trust the airborne terrain warning system.
The airborne terrain warning GPWS on the 747 judges whether there is a risk of collision with the ground based on the radio altitude and the close rate.However, this system has an extremely fatal flaw, that is, it is impossible to judge the risk of collision with the terrain on extremely steep terrain or smoothly descending terrain.
Therefore, the EGPWS system, Enhanced Terrain Warning, was gradually used in later Boeing aircraft.This warning system does not scan the surrounding terrain, but the terrain data is originally stored in the aircraft database.The system uses the GPS signal as a positioning method, and then retrieves the obstacle situation near the aircraft in the database according to the position of the aircraft.
Since the scan of the radio altimeter is no longer given, it is natural to eliminate the omission of some dangerous terrains that are scanned.But this enhanced terrain warning system based on GPS signals and terrain database also has a very embarrassing problem, that is, it appears when the GPS signal disappears.
Because the enhanced terrain warning system first relies on GPS positioning, and then retrieves the surrounding terrain data of the corresponding position according to the position coordinates.But what if the GPS signal disappears, the enhanced terrain warning system will be confused, and it will not know which terrain data to call.
It is precisely because the Enhanced Terrain Warning System does not know where the aircraft is, it starts to randomly retrieve terrain data. If it happens to be transferred to a mountainous terrain with high mountains, the Enhanced Terrain Warning System will also determine that the aircraft has encountered a risk of collision. , while issuing a warning, the so-called false warning.
Under certain extreme conditions, even if the aircraft is flying safely at an altitude of [-] meters, the terrain warning will sound suddenly. This is the enhanced terrain warning convulsion.This is often referred to in the industry as hitting a "glass mountain".
British Airways 1009 has been flying in the volcanic ash for too long, and the volcanic ash debris will definitely cause damage to the exposed GPS antenna, so Xu Cang didn’t feel it when he saw the left and right GPS failure consultation information appearing in the CDU draft column Accident.
What makes Xu Cang smarter than ordinary people is that when others know of a failure, they only think about how to deal with it.But Xu Cang is not only thinking about how to deal with it, he also thinks about other problems that will be extended from this fault in advance. In this way, when the extended problem arises, he will be calm and unhurried.
During the approach of the satellite landing system, all GPS fails, which means that the satellite signal cannot be obtained, and the entire approach must not go on.
Not only Xu Cang knew this, but also the responsible captain and the second captain.However, the continued approach afterwards was the result of Xu Cang's comprehensive analysis of various situations.
Ever since Soekarno-Hatta Airport began to regret accepting its own plane, Xu Cang knew that the person in charge of Soekarno-Hatta Airport was extremely cautious and would never take responsibility for himself.
Now it is not a problem with the ground equipment, but the GPS antenna of their own aircraft is out of order. There is an essential difference between the two.
If there is a problem with the ground equipment, then Xu Cang will definitely go around immediately without saying a word.At least in a low-altitude environment, the aircraft can survive in low-concentration volcanic ash for a while, and perhaps during this time, the ground equipment can be repaired.
However, if the GPS antenna on the plane is broken, it is broken. In view of the limited conditions, it is impossible for someone to climb outside the plane to repair the antenna, which eliminates the possibility of maintenance.
In other words, the only way for the satellite landing system was completely blocked.
The blind landing was no longer available, and the satellite landing system was also unavailable. Xu Cang could even imagine how the Soekarno-Hatta Airport would shirk and refuse to let the plane try to land.
So, that is to go all out!
However, all this was wiped out by a false warning of terrain due to a loss of GPS signal!
"Xu Cang!" The second pilot stared blankly at Xu Cang's side face, the blood from his nose dripped onto the floor, full of a sense of desolation and powerlessness.
Xu Cang let out a long breath, his mouth was filled with the smell of blood like rust, at this moment, it seemed that Xu Cang's most primitive survival instinct had been aroused.
Thin bloodshot eyes appeared in his eyes, which looked extremely hideous and terrifying.
The short mental calculation process of less than 1 minute has consumed almost all of his energy. If he flies away, he will definitely not be able to do it again.
This approach was his last chance, his last chance to take control of his own future.
Fate has strangled him by the throat, but this will definitely not make Xu Cang succumb!
Fall, drop the plane, and then, break fate, survive!
At this moment, from the perspective of the responsible captain, after the mental calculation process was interrupted, Xu Cang seemed to have lost his soul and was in a daze.
Admittedly, they may have been wrong, and it was really just a false terrain warning caused by the loss of the GPS signal, or maybe they had really killed their only chance of survival.No matter what, now there is no way to land again, and to forcefully land again is courting death.
At an altitude of [-] feet, the captain in charge held the steering wheel tightly with his left hand. He had reached the limit of intervention: "Xu Cang, let's go!"
The big mistake has already been made, why are you still obsessed with it?Let’s go around first, then we’ll make plans later!If Xu Cang couldn't respond to this sound, then the responsible captain would take over the control of the plane by himself, and he couldn't just watch the plane fall into the abyss.
But with this roar, Xu Cang raised his head abruptly, his eyes burst into a bright light, he saw it, saw the road of severance continue again, saw the last ray of dawn before the darkness swallowed everything!
Finally, Xu Cang moved!
Suddenly!He stepped up the accelerator!Accompanied by the roar of three engines, the downward momentum of the plane was quickly stopped.
Seeing that Xu Cang finally stepped on the accelerator, the captain in charge secretly breathed a sigh of relief, Xu Cang finally came to his senses.However, before the responsible captain was happy for a moment, the second captain suddenly shouted: "Thrust! Xu Cang, you haven't added the go-around thrust!"
With only three engines running, if you want to go around the plane, you need to increase the throttle to almost the maximum.However, Xu Cang didn't do that, he just increased the throttle to [-]/[-] of the full thrust, which is definitely not the thrust that a go-around should have!
Seeing that Xu Cang's thrust setting was not enough, the second captain already had doubts, and then looked at Xu Cang's pitch attitude setting, and his face immediately changed wildly.
Xu Cang didn't lift the plane up, but just kept the plane's track indicator on the horizon.
"This isn't a go-around, it's leveling!" The second captain was sweating coldly, and he understood Xu Cang's thoughts.Xu Cang didn't give up the idea of approaching at all, he would continue to land!
Because the glide path of the previous mental calculation was disturbed by external force, the plane could no longer maintain the accurate glide path, that is, it could not descend without authorization.
Therefore, Xu Cang stopped descending when the altitude was [-] feet. In order to ensure that there is no terrain threat, Xu Cang will continue to approach at a height of [-] feet.
After figuring out this terrifying idea that made him feel jittery, the second captain couldn't help it anymore: "Xu Cang, do you still want to land? There is no guidance now, and you don't even have a DME value. It might land!"
Generally speaking, the instrument approach system will be accompanied by DME equipment. DME stands for Distance Measuring Equipment. It is a very common ranging equipment that can provide the distance value between the aircraft and the DME equipment.
The reason why the instrument approach system is generally equipped with DME is that after having the distance display during the approach, the pilot can calculate the height-to-distance ratio through the distance to judge whether he is above or below the standard glide slope, so that Make reasonable corrections.
However, the VOR station on runway 27 is a pure VOR station without DME equipment, so it can only provide guidance in the horizontal direction without displaying any distance information.
Why did the second captain feel that Xu Cang's intention to continue approaching was just messing around?
In fact, the location of the VOR station on runway 27 is quite subtle, just at the head of the runway.If you have a DME display, at least you can use the DME value to judge how far the aircraft is from the end of the runway.
Now the outside world can't see, without the help of DME, they don't even know when they fly over the runway!Moreover, this is not taking into account the last amendment.
Even if Xu Cang could clearly recognize when he reached the sky above the runway, what about the subsequent [-]-foot altitude?
Yes, the VOR station can still provide horizontal guidance.However, its accuracy is far from being comparable to that of the blind drop signal.It is possible that there is no deviation from the course on the instrument, but in reality, the aircraft still deviates from the center line of the runway.
This has nothing to do with the manipulation technique, but the accuracy of the VOR station itself.The reason why non-precision approaches such as VOR require more severe weather conditions than precision approaches is because the accuracy of non-precision approaches is not high enough. Even if it is guided by navigation, there is still a large deviation at the moment of visualizing the runway. .
If the non-precision approach is the same as the blind landing, the pilot is only given a correction space of 60 meters in the vertical altitude, and the pilot may not have time to make corrections.
It is because of this expected difference in the difficulty of correction that the minimum descent altitude for a non-precision approach is usually more than twice the decision altitude for a precision approach.In this way, after entering the visual stage, the pilot can more calmly make final corrections to the aircraft.
Even if Xu Cang could fly over the runway, how would he go down the last [-] feet?Blind, all by luck?
The captain in charge also reacted at this moment, he directly grasped the shafts of the three thrust handles with his right hand, hoping to push the thrust up.However, under Xu Cang's control, the three throttle levers remained motionless like a rock.
"I don't need DME, the VOR station itself can provide enough information." Xu Cang said coldly, his words were full of undeniable determination: "Listen to my orders, I will lead you to live!"
However, the first half of Xu Cang's words fell into the ears of the second captain like a thunderclap, and a flash of light flashed in his mind, and suddenly, he seemed to understand Xu Cang's thoughts: "You mean backwards?" ?”
In the control room of the airport tower, controllers are closely watching the status of British Airways 1009.Prior to this, the aircraft had maintained a relatively uniform rate of descent.
However, all of a sudden, the plane, which had been maintaining a continuous descent, began to gradually reduce the rate of descent, and all this fell into the eyes of the controller.
"Well, what's going on?" The controller just had a strange thought, but he didn't have any special reaction. When the plane is affected by the airflow, there will be short-term fluctuations in the descent rate, but usually within a few minutes It will return to normal in a short time.
However, at the moment when the controller was stunned, he directly saw the descent rate of British Airways 1009 directly to zero.
"A go-around?" This was the controller's first thought, and he was already waiting for the crew's report.However, after waiting for two seconds, the controller finally noticed something abnormal, and the plane actually maintained an altitude of about [-] feet and stopped descending!
The controller was stunned for a while, and found that British Airways 1009 really did not descend or ascend, and it was really low altitude to maintain altitude, which was extremely weird.
At this moment, even if the controller does not understand the specific approach principle of the pilot, he also knows that the plane is definitely not on the correct track at this moment, and there are too many deviations, which cannot be explained by human error.
"British Airways 1009, is your altitude okay? Why didn't you descend?"
After waiting for a second or two, Xu Cang's indifferent but firm voice came from the radio: "We can see the runway, so we turned to approach."
This sentence was said in English, but the tower controller was stunned on the spot.He stood up slightly and glanced out of the tower glass, but it was still pitch black, the lights in the airport were also faintly visible, and the visibility was still extremely bad.
"Can you see the runway at [-] feet?" The tower controller was dumbfounded by Xu Cang's call.In this era, some rules are not very standardized, such as the practice of directly switching from an instrument approach to a visual approach.
It is actually illegal to switch from an instrument approach to a visual approach midway.First of all, let’s not talk about the extremely harsh conditions for visual approach. In the final stage, the approach method cannot be changed at will. An instrument approach is an instrument approach, and a visual approach is a visual approach. Just how to fly?
However, in the year 2000, civil aviation in many countries was still in its infancy, so it was really indulgent and unrestrained, and the constraints of rules and regulations were not strict.Therefore, the controller never felt that something was wrong because Xu Cang changed the approach method. What confused him was the fact that Xu Cang mentioned that he could see the runway at an altitude of [-] feet.
You must know that the vertical visibility of Class I ILS is only 1009 feet. If the crew of British Airways [-] can see the runway at [-] feet, doesn’t that mean that the current weather conditions at the airport are more than Class I? Can take off and land normally.
However, from a visual point of view, it doesn't look like the weather outside at all.
The reason why Xu Cang used the excuse that he switched to visual approach is because there are relatively few flight restrictions on visual approach.If it wasn't for the fact that he switched to visual approach and maintained level flight for a long time during the final approach, that idiot would know something went wrong.
Of course, it is quite strange to maintain level flight even with a visual approach, but it is a little easier to accept than an instrument approach.
The tower controller took another look outside. He couldn't accept the fact that the airport was in the category of weather, and he didn't care whether British Airways 1009 was about to land. Can you really see the runway? The weather conditions reported by the airport don’t even meet Category III standards.”
But after the tower controller asked the question, there was no response on the radio at all.
The tower controller looked at the radar, and the plane was almost over the runway, but the altitude was still kept at [-] feet.At this time, even the tower controller realized that something was wrong.
"There is a problem, there is definitely a problem." He hurriedly picked up the microphone and shouted again into the frequency, his words were full of urgency: "British Airways 1009, why haven't you landed yet, please report your intention."
However, there was still no response to this call.
The tower controller didn't believe there was a problem with the radio failure, and his face suddenly turned pale.He vaguely sensed what British Airways 1009 was going to do
They're going to land forcibly!
Just as the tower controller had this idea, everything in the cockpit confirmed his idea.
That's right, Xu Cang is going to land forcibly!
When approaching the end of the runway, the VOR pointer began to deflect sharply. This was not the reason why Xu Cang deviated from the course, but a precursor to the impending backhanding.
The full name of VOR is VHF Omnidirectional Beacon, which is a common navigation device in the aviation industry.Unlike the NDB non-directional radio beacon, the VOR has a direction indicator, that is, the VOR pointer on the aircraft will point to the VOR station in real time.
This feature of pointing to the VOR station in real time will lead to a situation, that is, when the aircraft passes the VOR station, the VOR pointer will reverse 180 degrees, which is what the second captain said before.
Usually the VOR station and the DME station are installed at the same site, which can provide both direction information and distance information.However, Soekarno-Hatta Airport is really rare, it is a pure VOR station.
Without the distance information of DME, Xu Cang couldn't be troubled at all.Xu Cang used the feature of the VOR reverse needle to judge the timing of flying over the VOR station, and because the VOR station happened to be at the end of the runway, the moment of the reverse needle was exactly the moment when Xu Cang entered the sky above the runway.
However, it is not enough to determine the timing of entering the air above the runway, because the aircraft needs to descend and enter the final correction. Even if the VOR course guidance is followed accurately, there will still be errors in the end.
Therefore, Xu Cang needs to do another thing.Previously, determining the timing of entering the air above the runway by the method of backward stitching was nothing more than a trail, and the follow-up actions were the real moment of life and death.
The controller's call was still echoing in the cockpit, but it was ignored.
"Xu Cang, this runway is 4000 to [-] meters long, but your approach altitude is too high, is the runway enough?" The captain in charge completely believed Xu Cang at this time, and what he cared about now was whether the plane could go down or not. And whether it can stop at the end of the runway after landing.
Generally speaking, the height of the runway threshold is fifty feet, which is the most standard.Of course, some pilots will approach at a slightly lower altitude in order to make the final round more comfortable.
Under normal circumstances, high approach is more difficult to do, because it involves the problem of descent rate control at ultra-low altitude.However, the height of Xu Cang's entry this time could no longer be described as too high, it was six times the standard entry height, which was really ridiculously high.
If the entry altitude is too high, the final touchdown point will continue to move forward, which means that the distance for the aircraft to stop will become smaller and smaller.
Although the runway of 4000 meters is quite long, but for a behemoth like the 747, the runway of 4000 meters is actually not that much margin.
Moreover, and more importantly, whether the aircraft can descend after entering the air above the runway, and how to descend, these are beyond the comprehension of the responsible captain.
If the timing of the descent is delayed, the remaining runways will be even more precarious.
In short, even if he chooses to trust Xu Cang helplessly, the responsible captain still feels very bleak about his future.
Just as the captain in charge asked this question, Xu Cang suddenly said: "Pull the open ground logic trip switch on the landing gear for me!"
The second captain was shocked by Xu Cang's request on the spot. Xu Cang's thinking jumped too fast, he couldn't keep up with Xu Cang's rhythm at all!
However, at this moment the pointer on the VOR indicator has turned ninety degrees!
"Quick! Unplug the open ground logic trip switch!" Xu Cang roared.
"Fuck!" The second captain, who was completely confused about the situation, really believed Xu Cang unconditionally at this moment, and he didn't care what Xu Cang wanted to do, and immediately got up and drove away.
The second captain didn't need to search for any experience, he directly located the open ground logic switch in the landing gear area, hesitated for a moment, and pulled it out instantly.
"Xu Cang, pull it out!" The second captain shouted.
At this moment, the VOR pointer on the plane was about to reverse, Xu Cang did not wait for the pointer to completely reverse, but began to descend ahead of time, but Xu Cang artificially controlled the descent rate, maintaining a relatively small descent rate of about [-].
What a perceptive person Xu Cang is. On the way back, he consulted the topographic map of the runway entrance of Soekarno-Hatta Airport.
The final clearance of runway 27 of Soekarno-Hatta Airport is indeed quite poor, but there are no obstacles near the end of the runway. Therefore, it is no problem to lower the altitude slightly earlier.
The [-]-foot entry height put too much pressure on Xu Cang, so much that Xu Cang had to descend early to lower the actual entry height as much as possible.
However, even though Xu Cang knew that there was no threat from the terrain below, he still couldn't let the plane descend too fast, because he was still not sure whether the plane was precisely above the runway.If you go down too fast, if there is a large deviation after visualizing the runway, there will be less room for Xu Cang to correct it.
"It's reversed!" The responsible captain, who had been paying attention to the VOR pointer, reminded Xu Cang the moment he saw the pointer completely reversed.
Xu Cang's eyes moved down, but he really saw nothing.At this moment, the runway lights of the airport should be turned on to the brightest, especially at night, but the difference is less than three hundred feet, and Xu Cang didn't even see the shadow of a light.
However, Xu Cang was not frustrated by the absence of runway lights, as he had expected it before.If the runway lights could be seen at three hundred feet, the measuring equipment at Soekarno-Hatta would all be sent to the dump.
Therefore, Xu Cang needs to do something at this moment.
At this moment, both the responsible captain and the second captain held their breaths, and finally, finally, they were about to see how Xu Cang completed the final descent!
So under the extremely shocked eyes of the two, Xu Cang pushed the No. [-] and No. [-] engines forward with his left hand respectively, then pressed the timer, and finally pulled up the reverse thrust of the No. [-] engine.
The responsible captain and the second captain saw Xu Cang pull up the No. [-] engine in the air to reverse thrust, and their hearts trembled on the spot, especially the second captain. He finally knew why Xu Cang asked him to pull the jumper switch of the air-ground logic. up.
Thrust reversers in the air can be dangerous. Nearly nine years ago, a Boeing 767 accidentally opened its thrust reversers during a flight, and the aircraft fell apart shortly thereafter.
Therefore, whether it is Boeing or other aircraft manufacturers' aircraft, they have worked hard to limit the reverse thrust, and the most important one is to suppress the reverse thrust in the air.
In fact, if in normal air operation, even if the thrust reverser is manually pulled, the thrust reverser actuation device will not work.This is written into the behavioral logic of the aircraft.
Therefore, if Xu Cang wants to turn on reverse thrust in the air, he must suppress the air-ground logic system of the aircraft.However, the air-ground logic system of the aircraft is attached to the landing gear, and there is no button or switch on the panel that can be directly closed.Therefore, Xu Cang could only ask the second captain to manually unplug the relevant jumper switch.
In many cases, it is not allowed for the crew to pull out the trip switch by themselves, because it will bring some unknown conditions.However, Xu Cang obviously couldn't control so much.
It was under the eyes of the responsible captain and the second captain who were almost terrified, even the No. [-] engine turned on reverse thrust not at idle thrust.Almost at the moment when the thrust reverser was turned on, the fuselage of the aircraft trembled extremely violently.
Why Xu Cang needs to increase the throttles of the No. [-] and No. [-] engines before pulling up the No. [-] thrust reverser, it is to maintain the altitude and speed of the aircraft when the No. [-] thrust reverser is turned on.
Of course, this situation will definitely not last for too long!However, Xu Cang did not intend to let this dangerous situation happen for too long.
ten seconds!Ten seconds is the limit that Xu Cang can tolerate!Nine years ago, Lauda Flight 004, which crashed due to the accidental opening of the thrust reverser in the air, took only 22 seconds from the thrust reverser opening to disintegration.
Xu Cang is unwilling to repeat the mistakes of Lauda Flight 004.
At the moment when the responsible captain was afraid of Xu Cang's crazy actions and was thinking about whether he should take action to stop it in time, his eyes froze suddenly, and saw a slight light flickering in front of the originally dark place.
Those are runway lights!
However, the light is faintly visible, as if it exists, and it seems to be an illusion, making it hard to see clearly.
However, it was this illusory light that directly dispelled the idea of the responsible captain intervening in Xu Cang.At this moment, the responsible captain's thoughts changed, and he seemed to understand Xu Cang's thoughts.
That is to blow away the volcanic ash in front of the aircraft with the huge forward airflow generated by reverse thrust at ultra-low altitude, so that the crew can see the runway lights.As long as the crew can see the light, it has a reference and can fall.
It can only be said that Xu Cang's idea is simply a work of genius.The idea of using the forward rushing airflow of reverse thrust to push away the volcanic ash can be imagined.
However, the concentration of volcanic ash this time was so high that only a gap was opened in front of the airflow generated by the reverse thrust. What the crew could see was only unreal lights, which could not be used as an accurate reference at all.
"Is it still not working?" The captain in charge murmured.
We have come to this point, we have already seen the slight lights of the runway, and the chance of survival is close at hand but elusive.
At this moment, Xu Cang's whole body was full of energy, and the 630 muscles in his body were tense everywhere.
Can't wait any longer!
Now the plane is consuming the braking distance after landing every second. If you wait any longer, even if the plane can land, it will rush off the runway, and you are close to death.
So in the fifth second, Xu Cang clenched his teeth so hard that he was about to burst and bleed. His left hand pushed the No. [-] engine directly to the front without warning.
The fuselage, which had already been trembling violently, suddenly seemed to be disintegrated. The huge airflow of the No. [-] engine hit the reverse thrust flap. stream door.
Even though the reverse thrust system was almost destroyed, the instantaneous forward air flow directly washed away the volcanic ash in front of it.
Finally, finally!Xu Cang saw a clear runway center line light!
However, just when Xu Cang wanted to correct it according to the light, the volcanic ash that had been blown away was about to close up again.But the next moment, accompanied by a loud roar, the air inlet and outlet of the No. [-] engine sprayed out majestic pillars of flame at the same time, and the huge impact force it carried directly swept away all the volcanic ash around the plane.
From the perspective of the controller, a vortex was inexplicably set off in the endless deep space darkness above the runway, as if it was going to swallow everything.At the moment before he understood it, a little light flashed in the vortex, and then it was like a muffled thunder, and it seemed that a round of scorching sun was wrapped in it, exploding infinite rays of light at the innermost part, and at that moment it exploded over the runway. bright.
The No. 747 engine was scrapped in place under full thrust reverse, but it has to be said that the quality of the [-]'s engine is really impressive.After such a huge explosion, the shock wave only escaped from the front and rear, and the engine cowling firmly bound the blast area inside the engine.
Under such frantic shock waves, the volcanic ash that was supposed to be closed was swept away, and a part of the runway was perfectly displayed in front of Xu Cang.
At this moment, how could Xu Cang let go of this once-in-a-lifetime opportunity bought by scrapping an engine?
When it was time, Xu Cang directly reduced the thrust of the No. [-] and No. [-] engines by half, but not completely.It is true that Xu Cang urgently needs to descend, but at this moment the plane is still about [-] feet away, how can such a high altitude directly stop all the throttle?
If all of this is collected, the entire 747 will be smashed down, and it will be the end of the plane crash.
While retracting the No. [-] and No. [-] engines, Xu Cang put the throttle of the No. [-] engine directly to idle, and then pulled up the fuel control switch of the No. [-] engine to cut off its fuel supply to avoid secondary explosions.
However, maybe it was really the explosion of the No. 747 engine just now that shook Xu Cang's mind, or maybe Xu Cang really didn't fly the [-] so much, and he didn't have that fine control over the throttle. The throttle on the number three engine was overcharged.
When the 747 passed the last fifty feet, the reporting frequency of the radio altimeter had already caught Xu Cang's attention.As soon as he reacted, he stepped up the throttle of the No. [-] and No. [-] engines.
However, there is a certain delay in increasing the thrust of the turbofan engine, and the inertia of the 747 aircraft is too great. When the thrust of the No. 747 and No. [-] engines was just added, the wheels of the [-] hit the road directly and severely. On top of that, Xu Cang's heart, liver, spleen, lungs and kidneys were almost torn apart.
Just this moment, Xu Cang wondered if the plane was going to disintegrate.
However, this is just a thought.The moment the plane touched down, Xu Cang was about to pull up the thrust reversers of the No. [-] and No. [-] engines, and the captain in charge had already manually pulled the speed brake to the maximum.
When they actually landed, they were horrified to find that the touchdown point of the plane had crossed the middle circle of the runway, that is to say, they had less than half of the runway to slow down.
Xu Cang originally wanted to use the maximum automatic brake, but seeing the situation, he immediately switched to the maximum manual brake.Xu Cang stepped on the brakes directly, and as the runway centerline lights began to turn red, Xu Cang's heart suddenly tightened.
This shows that there are not many runways left!
However, the deceleration effect of the 747 under the huge inertia of the plane still did not satisfy Xu Cang.
"It's not enough, I can't stop!" The second captain had such good eyesight that he immediately felt that the remaining runways were not enough.
Not only the second captain, Xu Cang also had this idea, but he has used all the deceleration methods, what else can he do?
Suddenly, Xu Cang saw that the lights on the center line of the runway had all turned red, and his heart suddenly tightened.
"Not good!" The captain in charge shouted.
At the moment when the responsible captain's voice fell, the end lights at the end of the runway were already faintly visible.
The plane is about to run off the runway!
Suddenly, Xu Cang saw a [-]-degree exit road on the left side of the end of the runway. He recalled a little, this exit road was facing a far apron, and the looming light of the control tower was already reflected in Xu Cang. Cang's eyes.
In the previous research on the airport map of Soekarno-Hatta Airport, the apron corresponding to this departure road should be used for deicing of slow trains, and there should be no aircraft staying now.
Therefore, Xu Cang made a decisive decision, stepped down on the rudder, and before the captain in charge could react, he went straight to the exit lane on the left.
"Xu Cang, the control tower is ahead!" The captain in charge understood Xu Cang's meaning, but the center of the apron opposite the exit road was the control tower. Didn't they just hit the control tower when they rushed out like this?
However, Xu Cang didn't care about these, and directly drove the plane into the apron with the maximum brake.
So, on the tower, the controller clearly saw the navigation lights representing the strobe lights of the aircraft rushing all the way in the dark, heading straight for the tower.
The plane did not take the entrance of the apron after leaving the exit road, but the wheels rushed directly into the apron brutally after crossing a short section of grass.
Under the illumination of the landing headlights, the whole picture of the apron was displayed in front of the crew, and there was really no plane.However, the small building in front of the base of the tower is already close in sight, and this small building is made of glass as the curtain wall. Under the light, it is so close that the crew can even see the reflection of the plane.
Time passed, not only the people on the control tower, but also the two captains held their breath, only Xu Cang stared at everything in front of him resolutely.
Finally, the behemoth 747 exhausted its last trace of strength, and its speed was still reduced to an undetectable level.But at this time, the nose of the plane had already approached the front of the glass curtain wall, and the light reflected from the landing headlights made Xu Cang's eyes a little bit dizzy.
Suddenly, the plane staggered forward, and then with a bang, the plane finally stopped.
"Stop!" The captain in charge let out a roar of ecstasy after the initial shock, and the moment he roared, the glass curtain wall against which the nose was pressed exploded and shattered into countless pieces.
Xu Cang looked at the shards of glass scattered on the ground before, and the dreamy feeling of the rest of his life finally became real, it was so wonderful.
Then, a surge of unstoppable passion rushed to the sky, Xu Cang raised his head to the sky and screamed, and Xu Cang's cry of fighting against fate resounded in the dark field of the airport!
It's the last day, and if you don't vote again, the monthly pass will be invalidated!
(End of this chapter)
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