Return to 2000: Captain of the Great Powers
Chapter 122 The End of the Technique!Long Yin and now!
Chapter 122 The End of the Technique!Long Yin and now! (Please subscribe!)
Over a small mountainous village on the edge of Yulong City, two helicopters were rumbling.The painting of these two helicopters is not the same, one is mainly red, and the other is mainly sky blue.
The reason is that although these two helicopters belong to the Provincial Search and Rescue Team, the red one belongs to the Provincial Fire Brigade, while the sky blue one belongs to the Provincial Earthquake Rescue Center.If there are no major public safety incidents, the two helicopters will not be dispatched at the same time.
This time, two helicopters came together, just for the besieged villagers in the mountain village below.The recent earthquake caused many mountains to collapse, blocking the only way out of this mountain village. With the continuous rain, there is a risk of another mountain collapse at any time.
Of course, the surrounding mountains have dense vegetation, and the plants have excellent soil-fixing ability, so the possibility of collapse is relatively small.However, just in case, the search and rescue team decided to use a helicopter to pick up the villagers first.
The only good thing is that there are not many villagers in this mountain village, otherwise it would be really difficult to handle with the capacity of two helicopters.
Although these two helicopters usually belong to different organizations, when they need to be deployed in a unified manner, they can be divided into two groups, otherwise it will be difficult to decide who will listen to whom if something goes wrong.
After coordination, the red helicopter originally belonging to the provincial fire brigade served as the leader of this transportation mission, and the captain of the helicopter was a middle-aged man in his 40s, Chen Huaxin.
Originally, he was still looking for a suitable landing site in the sky, but his superiors sent him a new mission by radio: "Rescue No. [-], now change the mission and go directly to Yulong Airport."
Chen Huaxin was stunned: "What are you going to Yulong Airport for? I remember that the road from Yulong Airport is fine. What's wrong with the airport?"
"It's not that there's a problem with the airport, it's that there may be a problem with a civil airliner carrying heavy equipment flying to Yulong Airport." The commander said, "Go to Yulong Airport right now. If the passenger plane lands safely, you can Return. If ... something happens, rescue immediately. Remember, as long as there is only one crew member on that plane, as long as he is alive, you must bring him back, you hear me?"
"One person, doesn't a big plane always fly with at least two people?" Chen Huaxin glanced at the villagers gathered in the open space below, and couldn't help asking: "Then what about the mission now?"
The commander was obviously in a hurry: "Chen Huaxin, obey the order, let No. [-] do the task here first, hurry to Yulong Airport, don't delay for a moment."
Chen Huaxin's co-pilot was a rare female pilot, but she was only wearing big toad glasses, so she couldn't see her appearance clearly.She heard clearly what Chen Huaxin said to the commander just now.
"Master, what do you say now?" the co-pilot asked.
Chen Huaxin's face was so ugly that he could only grit his teeth and contact another helicopter by radio: "No. [-], the superior has given me a new mission, now I have to divert to Yulong Airport, I will take care of it first, is it okay? "
Soon another helicopter replied: "I have no problem here, you can go to work!"
"Okay!" Chen Huaxin let go of the communication button, and gritted his teeth: "Let's go! Go to Yulong to see, what kind of god has such a big face?"
In the cockpit of Blue Sky 9200, before entering the thunderstorm cloud, Xu Cang's mind was always extremely happy.
The scope of such a huge weather system is extremely wide, and it is indeed extremely oppressive from the outside.If the plane enters the core area, or just approaches the core area, it will definitely die, and even the gods of Da Luo can't save it.
It doesn't even need to be struck by extremely violent lightning, just the extremely terrifying airflow can disintegrate the aircraft under overload.However, Xu Cang does not need to enter the core area, he only needs to turn an arc within the extreme edge range.
In the surrounding area of this weather system, due to the influence of the strong downdraft radiated out, Xu Cang couldn't go up to a higher altitude to reach a safe altitude.However, Xu Cang is not far away from the safe height of 700 meters. He only needs to climb a little bit higher, really just a little bit.
Under the action of the downdraft outside, the aircraft can only maintain an ascent rate of [-] feet per minute with all its strength.But as long as you enter this weather system, even if it is only on the edge, the direction of the airflow will change dramatically, from downward to upward.
As long as you ride this airflow, even a plane without power can go straight into the sky.
"Just a little bit!" Xu Cang's right hand is grasped so tightly, as long as the updraft touches a little bit, the plane will send me up to Qingyun with the force of the good wind.
However, the downdraft is instantly converted into an extremely powerful updraft, and the transition will generate a huge and incomparable aerodynamic load on the aircraft's body structure.
If the plane doesn't survive.
Xu Cang's thoughts have only come here, he will not think about what will happen in the future, he only wants to complete his final struggle against the storm in this day and night.
The left hand fully relies on the feeling to adjust the thrust of the aircraft to the recommended thrust for bumps, thus freeing the left hand.In fact, there will be a computer calculated bump thrust on the climb page of the aircraft CDU.Xu Cang tried to retrieve this page, but the rain covered the CDU display screen, even if Xu Cang erased it, new rain would soon follow.Moreover, the engine display on the DU was also covered by rain, making it difficult to distinguish. Even if he knew the appropriate bumpy thrust, Xu Cang could not adjust it accurately, so he chose an approximate 83% N1 speed as the thrust value for the final push. At the same time, a numerical value that he couldn't accurately distinguish was derived only by his body feeling.
Letting go of his left hand, holding the plate with both hands, Xu Cang's heart was beating hard.Although theoretically he only needs to stay at the very edge of the storm for a very short time, but this weather system is too strong, so strong that its edge may not be acceptable to Xu Cang.
However, at this moment, he can only pin everything on this most classic narrow-body machine so far!
call!
Xu Cang let out a long breath, and the thoughts in his mind seemed to stop for an instant.Then, almost in an instant, it seemed that the plane that had been suppressed was hit violently by a huge force and lifted wildly, climbing at an incredible speed.
When they actually reached the inside of the cloud, the torrential rain disappeared, and the only thing left was the plane that was close to getting out of control.
Xu Cang was mentally prepared before entering, so he deliberately freed his left hand to hold the disk with both hands, so that he could control the plane more powerfully.However, when he really faced the mighty power of heaven and earth, Xu Cang realized how ridiculous his thoughts were.
Almost at the moment when the plane was affected by the updraft, the nose of the plane rose directly from five degrees to more than twenty degrees, and the plane directly entered a complicated state.
Just this time, the plane has almost reached a safe enough altitude.
However, Xu Cang has no time to turn the plane out of the storm, he needs to hold down the plane first.The excessively high nose caused the speed of the plane to drop very rapidly, and Xu Cang knew it was very dangerous without even looking at the airspeed indicator.However, he couldn't hold down the nose of the plane at all.
Just when Xu Cang had a dangerous thought, in an instant, the steering wheel that Xu Cang was holding began to shake crazily.
"Stick shaking!" Xu Cang immediately understood what was going on. With such a large pitch attitude, it was basically expected that the plane would stall and shake the stick.
However, the stall warning was accompanied by beep beep beeps.Even the harsh sound of airflow could not cover up the warning sound.
Xu Cang is also quite familiar with this. This is not an audio warning for a stall, but an overspeed warning.If Xu Cang still has the energy to check the airspeed indicator at this moment, he can see that the upper and lower red and black speed bands have overlapped together, that is to say, the plane has stalled and overspeeded at the same time.
Perhaps this is an incredible situation, but it can happen under certain extreme conditions.
Xu Cang knew in his heart that he had to stop the plane's exaggerated head-up posture, otherwise, the plane might appear in the most terrifying situation with its nose vertically upward.At that time, the wing of the plane will completely lose its lift, and it will fall straight down like an iron lump, and there will be no salvation for the gods at that time.
Moreover, the current altitude is still relatively low compared to this weather system.Many weather systems are slightly more stable at low altitudes. At higher altitudes, that is the area with the strongest convection, and the aircraft's fuselage structure may not be able to withstand it.
However, just when Xu Cang tried to intervene in the state of the plane, a flash of lightning almost blinded Xu Cang's eyes.But before Xu Cang recovered his eyesight, the plane suddenly turned left.This was not controlled by Xu Cang, but caused by the air current.
Xu Cang didn't wait until he could see things clearly, but seized this fleeting opportunity. He didn't turn the plane back upright, but followed the airflow and kept the plane's slope so that it wouldn't continue to go left. Just turn around so that the plane does not roll over.
In the storm, don't think about fighting against the storm, it just makes you understand what is small.Following the trend is the way to survive.
Not visible, Xu Cang controlled the plane just by feeling, his lips moved slightly: "Take me out!"
In the control room of the Yulong tower, Lu Jinghua supported the table, and he stared blankly at Wang Xuan beside him: "A plane went in just now, right?"
Wang Xuan didn't speak, but that gloomy expression said everything.To be honest, Wang Xuan was very upset seeing Xu Cang, but he didn't want Xu Cang to really crash.Because Wang Xuan's interests are tied to Blue Sky Airlines, a company of the size of Blue Sky Airlines cannot afford a plane crash.
But if such a violent weather system enters, can it really come back alive?
The tower controller was dumbfounded. He paced back and forth in the control room, showing extreme anxiety. The air in the entire control room seemed to freeze like a muddy swamp.
In this almost suffocating environment, the landline in the corner of the control room suddenly rang, breaking the breathless curtain.
In an instant, the three people in the control room all cast their eyes on the landline in the corner.The controller was the closest, and immediately ran over, looked at the caller ID, and exclaimed, "Jianchuan's phone number!"
Lu Jinghua arrived first and grabbed the microphone: "Hey, can you hear me?"
Before that, they tried to call Jianchuan many times, but either they couldn't get through directly, or the sound quality was so bad that they couldn't receive any useful information.
"Lu Jinghua?" The voice from the opposite side was quite clear, but it was the voice of Teacher Mo Shangyun: "Why are you answering the phone?"
"Teacher!" Lu Jinghua hugged the microphone of the landline, and there was a bit of crying in his words: "Xu Cang's plane just entered the sky!"
"Heaven..." Mo Shangyun obviously reacted, and soon there was a voice of fury: "You mean Xu Cang went in the bad weather near Yulong Airport?"
When Lu Jinghua thought of this, his heart trembled uncontrollably: "Yes, I just watched him fly in."
"Lu Jinghua, you're right on the control tower, and you can command Xu Cang in!" Mo Shangyun roared immediately, "What the hell are you doing there?"
Just now, Jianchuan Tower learned from the Provincial Meteorological Observatory that the air mass near Yulong Airport was a weather system with explosive intensity.It takes more than eight hours to vent enough energy, and this is only the roughest and most conservative calculation.
It's hard for Mo Shangyun to imagine that a plane can return safely after entering this air mass!
"It's not me!" Lu Jinghua was just about to defend himself, when suddenly, his eyes on the dark sky suddenly focused.I saw a tiny black spot, like a moth in a fire, breaking through the cloud and reappearing in the field of vision.
Lu Jinghua's mouth was half open, and he sucked in a mouthful of cold air that everyone could hear.He directly threw the microphone of the landline, and pointed to the tower controller next to him: "Do you still have binoculars?"
The telescope just now has been smashed to the ground.
"No. What are you crazy about?" The controller was just about to pick up the landline microphone that Lu Jinghua dropped.However, Lu Jinghua raised his right hand, pointed at the sky, and said in disbelief, "Look, what is that?"
In the sky, Xu Cang almost screamed wildly the moment he broke through the clouds, his whole body was infested with the ecstasy of the rest of his life after the catastrophe.
It is true that before entering the air mass, Xu Cang had the idea of using the updraft inside the air mass to quickly increase his altitude.In Xu Cang's mind, if the plan goes well, he will only look at the edge of the air mass that brushes past.
However, every pilot has good meteorological knowledge, but anyone with a normal mind knows that the air mass in front should not be touched under any circumstances.
Even if there is some chance of survival in theory, but if there is no choice, who would be willing to give their life to the so-called uncontrollable chance?
The feeling after entering the storm air mass also confirmed Xu Cang's thoughts.
It was too strong, the updraft inside the storm air mass was too strong, completely beyond Xu Cang's ability to intervene as a human being.If it wasn't for the last gust of crosswind to give him a little help, he might really be buried in it.
However, the price paid for this was also extremely tragic.The exposed skin of Xu Cang's right forearm has begun to turn a faint purple, and everyone can understand that this is already a manifestation of frostbite.Moreover, Xu Cang's whole body began to shake uncontrollably, and the shaking was not continuous, but intermittent, that is, after a period of time, it stopped shaking.After a while, the body began to get up again, and then repeated the previous process, and the shaking was getting bigger and bigger.
Xu Cang knew that he was about to suffer severe hypothermia, and if he didn't recover his body temperature as soon as possible, it would be a nightmare ending.In this cockpit that has already broken the windshield, there is no other positive meaning except that the remaining core temperature will continue to be lost.Landing at the fastest speed is his only way to survive!
His heart was beating so powerfully, so powerfully that it was abnormal, as if a dying person was trying his best to survive.
And, beyond the physical urgency, just a moment in the storm caused unimaginable damage to the aircraft.The two on the left, the two on the right, and the six integrated displays on the upper and lower DUs have all been extinguished, and Xu Cang has already thrown away the earphones, and the long-term immersion in water has made them lose all functions.
The only good news, though, is that the spare gauges for the gauges still work.Although it is a little more troublesome to identify than the digital LCD integrated display, at least the basic functions are complete, such as airspeed, altitude, heading, and localizer and glideslope display.
However, compared to these seemingly troublesome problems, which are actually not so fatal, the engine problem is even more serious.After coming out of the storm air mass, Xu Cang's tense nerves finally relaxed a little bit, and he was able to separate out some mental perception of the surrounding movements, including the continuous sound of thumping from behind, and at the same time as the sound , the plane will vibrate a bit.
This is a very obvious sign of engine surge.The icing of the engine should have been quite serious before passing through the storm air mass just now. After entering the storm, the airflow is extremely unstable, which can easily cause the engine to surge.
However, Xu Cang was not surprised by the engine surge at first, but now that he has no help from getting on and off the DU, and his ears are starting to ring because of the extreme cold, he can't tell which engine is surging, or whether it is two engines. Both engines are thrashing.
Of course, engine surge is a little less urgent than serious damage or a fire that needs to be dealt with urgently.Only this small section still needs level flight during the period of visual circling, and the rest of the stage is descending, so the engine thrust can be limited to a relatively low value.If the engine surge is not too severe, at low thrust, the surge can even disappear.
If the entire runway of Yulong Airport was intact and usable, Xu Cang would not have to be so cautious.The reality can only allow him to land from the direction of runway 21, and there are certain requirements for the touchdown point and touchdown speed, which greatly restricts Xu Cang's flying freedom, so he can't play freely.
Putting aside the messy thoughts in his mind for now, Xu Cang re-adjusted the course on the MCP board.Thankfully, even after all this devastation, the MCP board still works, what can only be described as a miracle.However, when Xu Cang slightly touched the lower channel knob, the MCP board loosened as if it was about to be disengaged at any time, and it seemed that it was at the end of its strength.
After adjusting the course, Xu Cang touched the navigation panel of the center console.Just switch the navigation frequency.This is because Xu Cang has a habit, which cannot be said to be good or bad, that is, he does not like to adjust all four main and backup frequencies to the same frequency.If it is a dual-runway operation, he will adjust the navigation frequencies of both runways, but one of them will be used as the main one and the other will be used as a backup.
But Yulong Airport has only one runway, so there is nothing to adjust.Xu Cang used the blind landing frequency on the other runway as a backup frequency.It's not that Xu Cang foresaw the need to do a visual circling approach, it's simply luck.Otherwise, it would take a lot of effort for Xu Cang to adjust the frequency of blind descent on runway 03 with his current physical condition.
As for the minimum descent altitude, because the PFD is unavailable, Xu Cang didn't bother to adjust it.Anyway, Xu Cang only needs to refer to the altimeter, and everything is enough.
At this moment, after distinguishing the direction, Xu Cang knew that he was flying towards this field, and it seemed to be right on the fifth side of runway 21.This saved Xu Cang some trouble.Originally Xu Cang planned to fly to Cangkou, and then join the approach procedure of runway 03 from Cangkou, but now he doesn't need it.
Since there must be no obstacles at Yulong Airport, after he flew over the airport, he began to circle and descend to an altitude of 10300 feet. This altitude is the altitude at which Runway 03 intercepts the glideslope, which is slightly lower than that of Runway 21.
After descending to this altitude, he sailed from the side of runway 21, maintained the altitude, and made a 03-degree turn directly after flying to the FAF final approach fix of runway 180, so that he could directly join the blind landing on runway 03.
However, now that the aircraft's navigation display is off, Xu Cang can roughly maintain the departure trajectory by relying on the heading.However, there is no DME display on the standby instrument, so it is difficult to judge the final approach fix of runway 03, and it is not known when to turn around.
However, Xu Cang has another way.That is, there is a small lake just below the final approach fix of runway 03.The lake is not big, but it is definitely enough as a visual reference.
Even at the current distance and height, Xu Cang could already see the sparkling light reflected from the small lake.
The reason why Xu Cang can understand this is because when he was the chief division officer of the General Administration, he spent most of his energy in the southwest area.In the Central Plains region of China, the southwest region has the most mountainous areas and the most complex terrain among the six administrative regions of the Northwest, Southwest, East, South, and Northeast regions.With Xu Cang's temperament, he would choose the most difficult one, so the Southwest District is where he puts the most effort.
Xu Cang was responsible for the approval of the first visual circling approach procedure at a complex airport in China, and Xu Cang also followed up some of the visual circling approach procedures at several complex airports since then, including Yulong Airport.
Yulong Airport is still relatively representative, that is, the clearance environment of one side of the runway is relatively good, while the other side is quite bad, and the wind direction of this field is relatively fixed.If you land on the runway with a better clearance environment, it is easy to exceed the standard with the wind, so simply do a visual circle.When entering the field, take a runway with good clearance, and land on a runway that complies with the requirements of wind direction and speed.
The final descent of runway 03 is not long, about 15 nautical miles. If everything is normal, the plane should be able to land in less than [-] minutes.
15 minutes, I hope the engine and myself can last 15 minutes.
At this moment, on the control tower, the controller looked up at the sky with some doubts: "What is he trying to do, isn't he going to fly to Cangkou, why does he seem to be flying to this field?"
Just now the controller tried to call by radio several times, but there was no answer at all, so he gave up.However, under visual observation, Xu Cang's flying method seems to be different from the previous forecast.
"He's about to arrive at this field, so what's the point of flying far away?" The controller is not a pilot after all, and he can't understand some things, but Lu Jinghua followed clearly: "He flew to this field, circled to a lower altitude, and then directly Set sail from the side of runway 21, turn 03 at the final approach fix of runway [-], so that there is no terrain threat and save time. It seems that his mind is very clear. But, I still don't understand, How does he fly behind him, where is there any visual circling procedure, and at what altitude does he start turning? And, what is the thing behind him?"
"Huh?" Hearing Lu Jinghua's words, the controller turned his eyes to the sky behind the plane, looked at it for a while, and asked a little uncertainly, "Is that black smoke?"
From the perspective of the controller, a black smoke trail was faintly followed behind the plane.It's just that the background color of the sky is dim at this moment, and the contrast is not obvious, and he is not sure if he has misread it.Moreover, he couldn't understand why there was black smoke behind the plane, shouldn't it be white smoke trails?It is said that the exhaust of aircraft engines provides condensation nuclei for supercooled water droplets in the sky.
"That's right, it's black smoke!" Wang Xuan squinted his eyes and looked at the sky.
Lu Jinghua frowned involuntarily: "What's the matter, is there a fire alarm?"
Wang Xuan raised his finger and pointed to the faint smoke trail: "Did you see that this smoke trail is not uniform, but piece by piece, which means that the smoke exhaust from the plane is also discontinuous. If it is There is a fire, how could the smoke trail be discontinuous."
Lu Jinghua showed a hint of contemplation, while the controller asked impatiently, "What's the reason?"
Wang Xuan licked his dry lips: "I guess it might be the engine surge, the black smoke from insufficient combustion in the combustion chamber."
"Then if it's a surge." Lu Jinghua's face darkened: "Isn't it dangerous?"
Wang Xuan said in a low voice, "That depends on how long the engine lasts!"
At this moment, in the airspace not far from Yulong Airport, a red helicopter is flying towards the airport. Even though there is still a distance, the black cloud pillar piercing into the sky is still so oppressive. Under the cloud pillar, Yulong Airport seemed to be swallowed up at any moment.
In the helicopter cockpit, the female co-pilot looked at the cloud pillar in the distance with some fear: "Master, can we really land in this weather?"
"It doesn't matter, it's not what we should care about. We can just get close to the airport and watch it." The captain Chen Huaxin scanned the air above the airport, and soon saw a 737, and then pointed: "The above account should be looking at the That one?"
The co-pilot stretched his neck and looked at it for a moment, a little surprised: "It really is! But, why does this plane seem to be flying out? This is an abandoned approach and is going back?"
From the perspective of the co-pilot, the 737 was clearly flying away from the airport, not like it was approaching.
However, just as the co-pilot asked questions, the plane that was originally flying outside suddenly turned its nose and turned directly towards the airport.
The co-pilot was stunned: "Turning back, we still have to approach! But, I heard that the runway of Yulong Airport is damaged now, so we can't land on runway 03?"
According to the flight direction of the 737 in front, it is clearly going to land on runway 03, which is different from the news she received.
Captain Chen Huaxin did not draw conclusions arbitrarily, but pointed in a direction: "Come closer, don't go down when the altitude reaches 700 meters, and keep a visual distance from that plane."
"Oh, okay!" The co-pilot flew to the airport.Suddenly, she said, "Master, are you planning to retire?"
The captain, Chen Huaxin, was stunned for a moment, but he didn't deny it, and said yes: "My report has been submitted, and I guess I will leave after this mission is over. I have been in this business for almost 20 years, and I haven't saved much money. When the girl grows up, she will need money, so she can only change jobs."
"So what are your plans?" the co-pilot asked.
Captain Chen Huaxin smiled: "I heard that there are tourist helicopters over Erhai Lake. I'll apply for it. It should be fine. Oh, I'm still on a mission. Don't say it, don't say it!"
The co-pilot was very obedient, so he didn't say anything.
At this moment, in the cockpit of Lantian 9200, Xu Cang has already started to intercept the course of No. 03 by driving the plane.In order to ensure that the glideslope can be intercepted, Xu Cang also deliberately flew forward a little bit, so as not to be too high and difficult to intercept the glideslope.
If the visual conditions allow him to see the ground, otherwise, he can't deviate too much.
Turning his head around, Xu Cang adjusted slightly, and quickly intercepted the localizer, and within half a minute, the plane intercepted the glideslope.Thereafter, the aircraft began to descend along the ILS signal.
To be honest, it's not that Xu Cang is hypocritical, but that he has never experienced the era of mechanical instruments.For example, pilots of the older generation flew more 737-300 models. At that time, there were many mechanical instruments, and the appearance might be better.However, not long after Xu Cang's actual flight, even the slightly more common spare instruments were changed to electronic ones, and he had never used mechanical ones much.
At this time, the localizer and glideslope of the mechanical backup instruments in the cockpit are represented by metal rods, and the metal feeling is suspended, so from certain angles, it is not easy for Xu Cang to tell where the plane is. Is there any deviation in roll or pitch.At the same time, the spare instrument is on the side of the captain, Xu Cang needs to look sideways, which is very inconvenient.
At this moment, Xu Cang was still regretting why he didn't switch to the left seat before takeoff.In this way, the broken windshield is not directly facing him, and it is not so troublesome to look at the instrument.
However, these are minor troubles, and Xu Cang's ability can still overcome them.As soon as the plane entered the final descent stage, Xu Cang began to lower the flaps and landing gear.However, the flaps cannot be fully released, only flaps 25 can only be released, and then flaps [-] and [-] need to be released in the final stage of visual descent.In fact, you can slow down during the level flight stage, but Xu Cang is anxious to land, and the landing will push back the timing of the deceleration, which is harmless.
According to the procedure remembered by Xu Cang, the plane should start turning at the altitude above the airport, that is, the AFE altitude of 2300 feet.Xu Cang made some calculations in his mind, and when the sea pressure was corrected to 7300 feet, Xu Cang stopped descending, turned right and headed 45 degrees, and started to deviate from the course.
In fact, it is more appropriate to use the autopilot to fly this program, but now the autopilot cannot be connected at all, so Xu Cang can only fly by himself.
After turning right 45 degrees and starting to level off, Xu Cang silently counted the time for 30 seconds while maintaining level flight.After 30 seconds, the aircraft turned to a three-sided heading.
Originally, the time to release flaps 25 and 23 should be after the runway cutoff and the visual runway, and the timing is corrected according to the altitude after the runway cutoff, which is about [-] seconds.
However, due to the good visual conditions, there are only some broken clouds in the area on Xu Cang's right side. As long as Xu Cang keeps the width of the three sides and does not leave the protected area, there should be no terrain influence.It's just that there are many peaks on Xu Cang's right hand, and the height seems to be very different from Xu Cang's flying height.
Xu Cang remembered that when he approved the visual circling approach procedure at Yulong Airport, he wanted to deny it because of the too bad flight environment on the three sides.However, the visual circling approach procedure at Yulong Airport happened to be on the sidelines of the standard, and finally Xu Cang agreed.It is just that Yulong Airport is specifically requested to send relevant reminders to all airlines operating in this field to avoid terrain problems.
When the plane turned to the third side, Xu Cang could clearly feel that the surge of the engine became more and more obvious. He didn't know how long the engine could last, so he had to shorten the flight time, and it was impossible for him to go through the whole procedure.
The width of the three sides cannot be reduced. If the three sides are too wide, it is easy to deviate from the protection zone. If it is too narrow, it may not be able to turn to the turning radius of the five sides.Therefore, he can only reduce the time after cutting the runway head.However, if the time is reduced hastily, the arc turning to the fifth side will be too narrow, and he may not be able to enter the field at the correct height, so he must slow down in advance, that is, put the flaps 25 and [-] in advance.
Before cutting the runway, Xu Cang began to reduce the throttle, and at the same time slowed down and lowered the flaps, which was also to extend the available time of the engine as much as possible.
After the flaps [-] were released, Xu Cang slowly increased the throttle to ensure that the plane could fly level.However, at the moment when Xu Cang slowly increased the throttle, the plane suddenly seemed to be affected by a gust of air current, and the whole plane veered uncontrollably to the right.
Such drastic changes in wind direction and speed are prone to occur in the vicinity of storm air masses.In normal times, the impact would not be that great, but now Xu Cang is just circling and approaching the edge of the protection zone with his eyes.Blown by the sudden air flow, the plane deviated from the protection zone at once.
As I said before, the visual circling approach procedure of Yulong Airport has very little margin. The right side of the three sides is full of mountain peaks. As long as it deviates from the protected area, there will be terrain danger.
Sure enough, the moment the plane was blown away from the protected area by the wind, the terrain warning sounded.
Xu Cang reviewed this program back then, so he naturally knew where the risk points of this program were.And at this moment, he just perfectly touched the biggest danger point of this program.
Almost instinctively, Xu Cang started terrain avoidance maneuvers.Push the throttle to the maximum, and then want to turn the left pressure plate with the stick to go back to the protection zone.
In fact, according to normal requirements, it should be a go-around at this time.However, the state of the engine and his own physical condition did not allow him to do it again. He needed to increase the distance between the terrain as quickly as possible, and at the same time turn back to the protected area. Maybe it could be repaired in this way.
However, the engine, which was originally at the end of its strength, finally failed after Xu Cang suddenly stepped on the accelerator.Engine No. [-] bangs and shuts down on the spot.
In this way, with the No. [-] engine still working, the plane itself began to veer to the left, and Xu Cang himself was pressing the plate to the left, which created a very dangerous state.
Due to the sudden shutdown of the No. [-] engine, the power of the aircraft was lost, and the consequence of suddenly pulling the lever under low thrust was a rapid decrease in speed.At this moment, the plane was already in the landing configuration, and the stall margin was relatively small. In such a violent area, the plane stalled directly unexpectedly.
After the plane stalled, it began to fall uncontrollably to the left again. Under the action of the two phases, Xu Cang's mind went blank and he spiraled!
At such a high altitude, the plane chose to enter the spiral, which almost declared the failure of the landing, and even whether it survived is another matter.Moreover, after the No. [-] engine stalled, the No. [-] engine also began to surge under the thrust, and it was about to stall.
With both engines stalled, there was no possibility of a go-around at all.In other words, Xu Cang lost the chance to do it again.
In this situation, it would be a dead end for any other pilot, an unsolvable situation where ten deaths would lead to no survival.
However, at this critical moment, Xu Cang's heart was beating like thunder, and he could even hear his beating heart.The muscles of his whole body tensed up instantly, his body temperature began to rise, and even a faint mist rose from the wet clothes.
This is not because of Xu Cang's superpowers, but because of the adrenaline rush, he is about to make a final fight for his own survival!
If it is said that the flameout of Feiyu's twin engines reflects Xu Cang's precise control of the aircraft, and the alternate landing in Tianshan shows Xu Cang's sudden insight, the 9811 incident reflects his terrifying mental arithmetic ability like a computer.
At that moment, when Xu Cang's life was at its strongest, when his energy was at its peak, under his desire to survive, every muscle and every nerve in Xu Cang was rapidly increasing. .
At this moment, it will be the peak that Xu Cang will not be able to surpass in his life. He just wants to win a chance in this mortal situation.
After Xu Cang realized that he was out of the threat of the terrain, he pushed the steering wheel to the bottom. If he wanted to get out of the spiral, he had to get out of the stall first, and then use the rudder to stop the momentum of the plane's circling.
During this time, the throttle must be turned off.Otherwise, if you push the stick with the throttle, the speed of the aircraft will increase at an incredible speed.During the spiral process, the gravitational potential energy of the aircraft is already converted into kinetic energy, resulting in a rapid increase in speed. If the accelerator is still used, the increase in speed will be uncontrollable.
However, Xu Cang didn't turn off the gas pedal immediately, but kept the No. [-] engine in its dying state.Due to the support of the pole, the angle of attack of the aircraft decreases rapidly, and while the power is maintained, the speed increases like a nine-day Milky Way pouring down.Before waiting for two seconds, the aircraft changed from stall shake to overspeed.
However, Xu Cang didn't care at all!Even after recovering from the stall, he didn't even use the rudder to stop the circling momentum of the aircraft immediately.
Because he knows that even if he corrects this spiral, he will not have another chance to do it again without motivation.So, even in a spiral, he had to bring the plane down.
If other pilots heard his ideas, they would laugh at his whimsy.But Xu Cang is going to do this against the sky.
Just after the first turn of the plane, the No. 180 engine, which was already unable to hold on, shut down directly.After a lap of acceleration, the speed of the aircraft has exceeded 25 knots, and the flaps have also been unloaded to the actual [-] position.Moreover, this airspeed continued to increase, but Xu Cang turned a blind eye to it.
He is waiting!Wait for a moment of vitality!
After the aircraft turned to the second lap, the speed had increased to 230 knots.At this moment, the huge wind pressure has already damaged the flap structure, causing a rattling sound.
The moment the plane passed the second lap, Xu Cang finally moved!
He put his foot on the right rudder to stop the plane's left helix, and then began to yank the stick.Xu Cang's movements were so rough that the vertical tail almost began to deform under the huge speed.The flaps were already overwhelmed, and Xu Cang pulled the lever so violently that the flaps were subjected to a greater load, and the left flap even began to disintegrate, but due to the structural connection, it did not fly away immediately.
PS —————The final landing part is in the author's words below, celebrating Qianjun.Next time we will have to wait for the [-] average or an important festival.Of course, doing this also means that some people have prostituted themselves for nothing and cursed at others, which makes me very upset!
The plane landed, give me a monthly pass or make me a bestseller first step, the category I've been thinking of is the best seller!
However, the movement of the flaps disintegrating made the whole body vibrate, and Xu Cang could clearly feel it.
However, Xu Cang's rough operation is not without reason.How accurate his advance calculation was, the last half turn was left to stop the spin of the plane, and at the moment the spin stopped, the plane was exactly aligned with the runway.
As a result, to outsiders, the plane appears to be drifting like a racing car, going from spiraling to cutting into final in an uncanny way.However, at this time, the speed of the plane was still 180 knots, which was too high for the plane to stop at all.
At this moment, Xu Cang directly pulled the speedbrake to the flight stop, the lift of the plane was suddenly damaged, and the speed dropped to an incredible degree.It was at the moment when the speedbrake was pulled up and cut into the fifth edge, due to the excessive state change, the air around the plane was squeezed violently, and it exploded in the air, like a sonic boom.
After the speed of the plane kept dropping, Xu Cang didn't retract the speedbrake until it was close to the second stick shake, and he just rushed down with the stick shake.
There is a certain margin for stick shaking, and Xu Cang wants to use this margin to reduce the speed as much as possible.
Almost before the outsiders could react, after approaching the sky above the runway, Xu Cang retracted the speedbrake, kept the plane slightly lifted, and smashed hard on the runway at ultra-low speed. The load was so large that it seemed The plane was smashed to pieces.
(End of this chapter)
Over a small mountainous village on the edge of Yulong City, two helicopters were rumbling.The painting of these two helicopters is not the same, one is mainly red, and the other is mainly sky blue.
The reason is that although these two helicopters belong to the Provincial Search and Rescue Team, the red one belongs to the Provincial Fire Brigade, while the sky blue one belongs to the Provincial Earthquake Rescue Center.If there are no major public safety incidents, the two helicopters will not be dispatched at the same time.
This time, two helicopters came together, just for the besieged villagers in the mountain village below.The recent earthquake caused many mountains to collapse, blocking the only way out of this mountain village. With the continuous rain, there is a risk of another mountain collapse at any time.
Of course, the surrounding mountains have dense vegetation, and the plants have excellent soil-fixing ability, so the possibility of collapse is relatively small.However, just in case, the search and rescue team decided to use a helicopter to pick up the villagers first.
The only good thing is that there are not many villagers in this mountain village, otherwise it would be really difficult to handle with the capacity of two helicopters.
Although these two helicopters usually belong to different organizations, when they need to be deployed in a unified manner, they can be divided into two groups, otherwise it will be difficult to decide who will listen to whom if something goes wrong.
After coordination, the red helicopter originally belonging to the provincial fire brigade served as the leader of this transportation mission, and the captain of the helicopter was a middle-aged man in his 40s, Chen Huaxin.
Originally, he was still looking for a suitable landing site in the sky, but his superiors sent him a new mission by radio: "Rescue No. [-], now change the mission and go directly to Yulong Airport."
Chen Huaxin was stunned: "What are you going to Yulong Airport for? I remember that the road from Yulong Airport is fine. What's wrong with the airport?"
"It's not that there's a problem with the airport, it's that there may be a problem with a civil airliner carrying heavy equipment flying to Yulong Airport." The commander said, "Go to Yulong Airport right now. If the passenger plane lands safely, you can Return. If ... something happens, rescue immediately. Remember, as long as there is only one crew member on that plane, as long as he is alive, you must bring him back, you hear me?"
"One person, doesn't a big plane always fly with at least two people?" Chen Huaxin glanced at the villagers gathered in the open space below, and couldn't help asking: "Then what about the mission now?"
The commander was obviously in a hurry: "Chen Huaxin, obey the order, let No. [-] do the task here first, hurry to Yulong Airport, don't delay for a moment."
Chen Huaxin's co-pilot was a rare female pilot, but she was only wearing big toad glasses, so she couldn't see her appearance clearly.She heard clearly what Chen Huaxin said to the commander just now.
"Master, what do you say now?" the co-pilot asked.
Chen Huaxin's face was so ugly that he could only grit his teeth and contact another helicopter by radio: "No. [-], the superior has given me a new mission, now I have to divert to Yulong Airport, I will take care of it first, is it okay? "
Soon another helicopter replied: "I have no problem here, you can go to work!"
"Okay!" Chen Huaxin let go of the communication button, and gritted his teeth: "Let's go! Go to Yulong to see, what kind of god has such a big face?"
In the cockpit of Blue Sky 9200, before entering the thunderstorm cloud, Xu Cang's mind was always extremely happy.
The scope of such a huge weather system is extremely wide, and it is indeed extremely oppressive from the outside.If the plane enters the core area, or just approaches the core area, it will definitely die, and even the gods of Da Luo can't save it.
It doesn't even need to be struck by extremely violent lightning, just the extremely terrifying airflow can disintegrate the aircraft under overload.However, Xu Cang does not need to enter the core area, he only needs to turn an arc within the extreme edge range.
In the surrounding area of this weather system, due to the influence of the strong downdraft radiated out, Xu Cang couldn't go up to a higher altitude to reach a safe altitude.However, Xu Cang is not far away from the safe height of 700 meters. He only needs to climb a little bit higher, really just a little bit.
Under the action of the downdraft outside, the aircraft can only maintain an ascent rate of [-] feet per minute with all its strength.But as long as you enter this weather system, even if it is only on the edge, the direction of the airflow will change dramatically, from downward to upward.
As long as you ride this airflow, even a plane without power can go straight into the sky.
"Just a little bit!" Xu Cang's right hand is grasped so tightly, as long as the updraft touches a little bit, the plane will send me up to Qingyun with the force of the good wind.
However, the downdraft is instantly converted into an extremely powerful updraft, and the transition will generate a huge and incomparable aerodynamic load on the aircraft's body structure.
If the plane doesn't survive.
Xu Cang's thoughts have only come here, he will not think about what will happen in the future, he only wants to complete his final struggle against the storm in this day and night.
The left hand fully relies on the feeling to adjust the thrust of the aircraft to the recommended thrust for bumps, thus freeing the left hand.In fact, there will be a computer calculated bump thrust on the climb page of the aircraft CDU.Xu Cang tried to retrieve this page, but the rain covered the CDU display screen, even if Xu Cang erased it, new rain would soon follow.Moreover, the engine display on the DU was also covered by rain, making it difficult to distinguish. Even if he knew the appropriate bumpy thrust, Xu Cang could not adjust it accurately, so he chose an approximate 83% N1 speed as the thrust value for the final push. At the same time, a numerical value that he couldn't accurately distinguish was derived only by his body feeling.
Letting go of his left hand, holding the plate with both hands, Xu Cang's heart was beating hard.Although theoretically he only needs to stay at the very edge of the storm for a very short time, but this weather system is too strong, so strong that its edge may not be acceptable to Xu Cang.
However, at this moment, he can only pin everything on this most classic narrow-body machine so far!
call!
Xu Cang let out a long breath, and the thoughts in his mind seemed to stop for an instant.Then, almost in an instant, it seemed that the plane that had been suppressed was hit violently by a huge force and lifted wildly, climbing at an incredible speed.
When they actually reached the inside of the cloud, the torrential rain disappeared, and the only thing left was the plane that was close to getting out of control.
Xu Cang was mentally prepared before entering, so he deliberately freed his left hand to hold the disk with both hands, so that he could control the plane more powerfully.However, when he really faced the mighty power of heaven and earth, Xu Cang realized how ridiculous his thoughts were.
Almost at the moment when the plane was affected by the updraft, the nose of the plane rose directly from five degrees to more than twenty degrees, and the plane directly entered a complicated state.
Just this time, the plane has almost reached a safe enough altitude.
However, Xu Cang has no time to turn the plane out of the storm, he needs to hold down the plane first.The excessively high nose caused the speed of the plane to drop very rapidly, and Xu Cang knew it was very dangerous without even looking at the airspeed indicator.However, he couldn't hold down the nose of the plane at all.
Just when Xu Cang had a dangerous thought, in an instant, the steering wheel that Xu Cang was holding began to shake crazily.
"Stick shaking!" Xu Cang immediately understood what was going on. With such a large pitch attitude, it was basically expected that the plane would stall and shake the stick.
However, the stall warning was accompanied by beep beep beeps.Even the harsh sound of airflow could not cover up the warning sound.
Xu Cang is also quite familiar with this. This is not an audio warning for a stall, but an overspeed warning.If Xu Cang still has the energy to check the airspeed indicator at this moment, he can see that the upper and lower red and black speed bands have overlapped together, that is to say, the plane has stalled and overspeeded at the same time.
Perhaps this is an incredible situation, but it can happen under certain extreme conditions.
Xu Cang knew in his heart that he had to stop the plane's exaggerated head-up posture, otherwise, the plane might appear in the most terrifying situation with its nose vertically upward.At that time, the wing of the plane will completely lose its lift, and it will fall straight down like an iron lump, and there will be no salvation for the gods at that time.
Moreover, the current altitude is still relatively low compared to this weather system.Many weather systems are slightly more stable at low altitudes. At higher altitudes, that is the area with the strongest convection, and the aircraft's fuselage structure may not be able to withstand it.
However, just when Xu Cang tried to intervene in the state of the plane, a flash of lightning almost blinded Xu Cang's eyes.But before Xu Cang recovered his eyesight, the plane suddenly turned left.This was not controlled by Xu Cang, but caused by the air current.
Xu Cang didn't wait until he could see things clearly, but seized this fleeting opportunity. He didn't turn the plane back upright, but followed the airflow and kept the plane's slope so that it wouldn't continue to go left. Just turn around so that the plane does not roll over.
In the storm, don't think about fighting against the storm, it just makes you understand what is small.Following the trend is the way to survive.
Not visible, Xu Cang controlled the plane just by feeling, his lips moved slightly: "Take me out!"
In the control room of the Yulong tower, Lu Jinghua supported the table, and he stared blankly at Wang Xuan beside him: "A plane went in just now, right?"
Wang Xuan didn't speak, but that gloomy expression said everything.To be honest, Wang Xuan was very upset seeing Xu Cang, but he didn't want Xu Cang to really crash.Because Wang Xuan's interests are tied to Blue Sky Airlines, a company of the size of Blue Sky Airlines cannot afford a plane crash.
But if such a violent weather system enters, can it really come back alive?
The tower controller was dumbfounded. He paced back and forth in the control room, showing extreme anxiety. The air in the entire control room seemed to freeze like a muddy swamp.
In this almost suffocating environment, the landline in the corner of the control room suddenly rang, breaking the breathless curtain.
In an instant, the three people in the control room all cast their eyes on the landline in the corner.The controller was the closest, and immediately ran over, looked at the caller ID, and exclaimed, "Jianchuan's phone number!"
Lu Jinghua arrived first and grabbed the microphone: "Hey, can you hear me?"
Before that, they tried to call Jianchuan many times, but either they couldn't get through directly, or the sound quality was so bad that they couldn't receive any useful information.
"Lu Jinghua?" The voice from the opposite side was quite clear, but it was the voice of Teacher Mo Shangyun: "Why are you answering the phone?"
"Teacher!" Lu Jinghua hugged the microphone of the landline, and there was a bit of crying in his words: "Xu Cang's plane just entered the sky!"
"Heaven..." Mo Shangyun obviously reacted, and soon there was a voice of fury: "You mean Xu Cang went in the bad weather near Yulong Airport?"
When Lu Jinghua thought of this, his heart trembled uncontrollably: "Yes, I just watched him fly in."
"Lu Jinghua, you're right on the control tower, and you can command Xu Cang in!" Mo Shangyun roared immediately, "What the hell are you doing there?"
Just now, Jianchuan Tower learned from the Provincial Meteorological Observatory that the air mass near Yulong Airport was a weather system with explosive intensity.It takes more than eight hours to vent enough energy, and this is only the roughest and most conservative calculation.
It's hard for Mo Shangyun to imagine that a plane can return safely after entering this air mass!
"It's not me!" Lu Jinghua was just about to defend himself, when suddenly, his eyes on the dark sky suddenly focused.I saw a tiny black spot, like a moth in a fire, breaking through the cloud and reappearing in the field of vision.
Lu Jinghua's mouth was half open, and he sucked in a mouthful of cold air that everyone could hear.He directly threw the microphone of the landline, and pointed to the tower controller next to him: "Do you still have binoculars?"
The telescope just now has been smashed to the ground.
"No. What are you crazy about?" The controller was just about to pick up the landline microphone that Lu Jinghua dropped.However, Lu Jinghua raised his right hand, pointed at the sky, and said in disbelief, "Look, what is that?"
In the sky, Xu Cang almost screamed wildly the moment he broke through the clouds, his whole body was infested with the ecstasy of the rest of his life after the catastrophe.
It is true that before entering the air mass, Xu Cang had the idea of using the updraft inside the air mass to quickly increase his altitude.In Xu Cang's mind, if the plan goes well, he will only look at the edge of the air mass that brushes past.
However, every pilot has good meteorological knowledge, but anyone with a normal mind knows that the air mass in front should not be touched under any circumstances.
Even if there is some chance of survival in theory, but if there is no choice, who would be willing to give their life to the so-called uncontrollable chance?
The feeling after entering the storm air mass also confirmed Xu Cang's thoughts.
It was too strong, the updraft inside the storm air mass was too strong, completely beyond Xu Cang's ability to intervene as a human being.If it wasn't for the last gust of crosswind to give him a little help, he might really be buried in it.
However, the price paid for this was also extremely tragic.The exposed skin of Xu Cang's right forearm has begun to turn a faint purple, and everyone can understand that this is already a manifestation of frostbite.Moreover, Xu Cang's whole body began to shake uncontrollably, and the shaking was not continuous, but intermittent, that is, after a period of time, it stopped shaking.After a while, the body began to get up again, and then repeated the previous process, and the shaking was getting bigger and bigger.
Xu Cang knew that he was about to suffer severe hypothermia, and if he didn't recover his body temperature as soon as possible, it would be a nightmare ending.In this cockpit that has already broken the windshield, there is no other positive meaning except that the remaining core temperature will continue to be lost.Landing at the fastest speed is his only way to survive!
His heart was beating so powerfully, so powerfully that it was abnormal, as if a dying person was trying his best to survive.
And, beyond the physical urgency, just a moment in the storm caused unimaginable damage to the aircraft.The two on the left, the two on the right, and the six integrated displays on the upper and lower DUs have all been extinguished, and Xu Cang has already thrown away the earphones, and the long-term immersion in water has made them lose all functions.
The only good news, though, is that the spare gauges for the gauges still work.Although it is a little more troublesome to identify than the digital LCD integrated display, at least the basic functions are complete, such as airspeed, altitude, heading, and localizer and glideslope display.
However, compared to these seemingly troublesome problems, which are actually not so fatal, the engine problem is even more serious.After coming out of the storm air mass, Xu Cang's tense nerves finally relaxed a little bit, and he was able to separate out some mental perception of the surrounding movements, including the continuous sound of thumping from behind, and at the same time as the sound , the plane will vibrate a bit.
This is a very obvious sign of engine surge.The icing of the engine should have been quite serious before passing through the storm air mass just now. After entering the storm, the airflow is extremely unstable, which can easily cause the engine to surge.
However, Xu Cang was not surprised by the engine surge at first, but now that he has no help from getting on and off the DU, and his ears are starting to ring because of the extreme cold, he can't tell which engine is surging, or whether it is two engines. Both engines are thrashing.
Of course, engine surge is a little less urgent than serious damage or a fire that needs to be dealt with urgently.Only this small section still needs level flight during the period of visual circling, and the rest of the stage is descending, so the engine thrust can be limited to a relatively low value.If the engine surge is not too severe, at low thrust, the surge can even disappear.
If the entire runway of Yulong Airport was intact and usable, Xu Cang would not have to be so cautious.The reality can only allow him to land from the direction of runway 21, and there are certain requirements for the touchdown point and touchdown speed, which greatly restricts Xu Cang's flying freedom, so he can't play freely.
Putting aside the messy thoughts in his mind for now, Xu Cang re-adjusted the course on the MCP board.Thankfully, even after all this devastation, the MCP board still works, what can only be described as a miracle.However, when Xu Cang slightly touched the lower channel knob, the MCP board loosened as if it was about to be disengaged at any time, and it seemed that it was at the end of its strength.
After adjusting the course, Xu Cang touched the navigation panel of the center console.Just switch the navigation frequency.This is because Xu Cang has a habit, which cannot be said to be good or bad, that is, he does not like to adjust all four main and backup frequencies to the same frequency.If it is a dual-runway operation, he will adjust the navigation frequencies of both runways, but one of them will be used as the main one and the other will be used as a backup.
But Yulong Airport has only one runway, so there is nothing to adjust.Xu Cang used the blind landing frequency on the other runway as a backup frequency.It's not that Xu Cang foresaw the need to do a visual circling approach, it's simply luck.Otherwise, it would take a lot of effort for Xu Cang to adjust the frequency of blind descent on runway 03 with his current physical condition.
As for the minimum descent altitude, because the PFD is unavailable, Xu Cang didn't bother to adjust it.Anyway, Xu Cang only needs to refer to the altimeter, and everything is enough.
At this moment, after distinguishing the direction, Xu Cang knew that he was flying towards this field, and it seemed to be right on the fifth side of runway 21.This saved Xu Cang some trouble.Originally Xu Cang planned to fly to Cangkou, and then join the approach procedure of runway 03 from Cangkou, but now he doesn't need it.
Since there must be no obstacles at Yulong Airport, after he flew over the airport, he began to circle and descend to an altitude of 10300 feet. This altitude is the altitude at which Runway 03 intercepts the glideslope, which is slightly lower than that of Runway 21.
After descending to this altitude, he sailed from the side of runway 21, maintained the altitude, and made a 03-degree turn directly after flying to the FAF final approach fix of runway 180, so that he could directly join the blind landing on runway 03.
However, now that the aircraft's navigation display is off, Xu Cang can roughly maintain the departure trajectory by relying on the heading.However, there is no DME display on the standby instrument, so it is difficult to judge the final approach fix of runway 03, and it is not known when to turn around.
However, Xu Cang has another way.That is, there is a small lake just below the final approach fix of runway 03.The lake is not big, but it is definitely enough as a visual reference.
Even at the current distance and height, Xu Cang could already see the sparkling light reflected from the small lake.
The reason why Xu Cang can understand this is because when he was the chief division officer of the General Administration, he spent most of his energy in the southwest area.In the Central Plains region of China, the southwest region has the most mountainous areas and the most complex terrain among the six administrative regions of the Northwest, Southwest, East, South, and Northeast regions.With Xu Cang's temperament, he would choose the most difficult one, so the Southwest District is where he puts the most effort.
Xu Cang was responsible for the approval of the first visual circling approach procedure at a complex airport in China, and Xu Cang also followed up some of the visual circling approach procedures at several complex airports since then, including Yulong Airport.
Yulong Airport is still relatively representative, that is, the clearance environment of one side of the runway is relatively good, while the other side is quite bad, and the wind direction of this field is relatively fixed.If you land on the runway with a better clearance environment, it is easy to exceed the standard with the wind, so simply do a visual circle.When entering the field, take a runway with good clearance, and land on a runway that complies with the requirements of wind direction and speed.
The final descent of runway 03 is not long, about 15 nautical miles. If everything is normal, the plane should be able to land in less than [-] minutes.
15 minutes, I hope the engine and myself can last 15 minutes.
At this moment, on the control tower, the controller looked up at the sky with some doubts: "What is he trying to do, isn't he going to fly to Cangkou, why does he seem to be flying to this field?"
Just now the controller tried to call by radio several times, but there was no answer at all, so he gave up.However, under visual observation, Xu Cang's flying method seems to be different from the previous forecast.
"He's about to arrive at this field, so what's the point of flying far away?" The controller is not a pilot after all, and he can't understand some things, but Lu Jinghua followed clearly: "He flew to this field, circled to a lower altitude, and then directly Set sail from the side of runway 21, turn 03 at the final approach fix of runway [-], so that there is no terrain threat and save time. It seems that his mind is very clear. But, I still don't understand, How does he fly behind him, where is there any visual circling procedure, and at what altitude does he start turning? And, what is the thing behind him?"
"Huh?" Hearing Lu Jinghua's words, the controller turned his eyes to the sky behind the plane, looked at it for a while, and asked a little uncertainly, "Is that black smoke?"
From the perspective of the controller, a black smoke trail was faintly followed behind the plane.It's just that the background color of the sky is dim at this moment, and the contrast is not obvious, and he is not sure if he has misread it.Moreover, he couldn't understand why there was black smoke behind the plane, shouldn't it be white smoke trails?It is said that the exhaust of aircraft engines provides condensation nuclei for supercooled water droplets in the sky.
"That's right, it's black smoke!" Wang Xuan squinted his eyes and looked at the sky.
Lu Jinghua frowned involuntarily: "What's the matter, is there a fire alarm?"
Wang Xuan raised his finger and pointed to the faint smoke trail: "Did you see that this smoke trail is not uniform, but piece by piece, which means that the smoke exhaust from the plane is also discontinuous. If it is There is a fire, how could the smoke trail be discontinuous."
Lu Jinghua showed a hint of contemplation, while the controller asked impatiently, "What's the reason?"
Wang Xuan licked his dry lips: "I guess it might be the engine surge, the black smoke from insufficient combustion in the combustion chamber."
"Then if it's a surge." Lu Jinghua's face darkened: "Isn't it dangerous?"
Wang Xuan said in a low voice, "That depends on how long the engine lasts!"
At this moment, in the airspace not far from Yulong Airport, a red helicopter is flying towards the airport. Even though there is still a distance, the black cloud pillar piercing into the sky is still so oppressive. Under the cloud pillar, Yulong Airport seemed to be swallowed up at any moment.
In the helicopter cockpit, the female co-pilot looked at the cloud pillar in the distance with some fear: "Master, can we really land in this weather?"
"It doesn't matter, it's not what we should care about. We can just get close to the airport and watch it." The captain Chen Huaxin scanned the air above the airport, and soon saw a 737, and then pointed: "The above account should be looking at the That one?"
The co-pilot stretched his neck and looked at it for a moment, a little surprised: "It really is! But, why does this plane seem to be flying out? This is an abandoned approach and is going back?"
From the perspective of the co-pilot, the 737 was clearly flying away from the airport, not like it was approaching.
However, just as the co-pilot asked questions, the plane that was originally flying outside suddenly turned its nose and turned directly towards the airport.
The co-pilot was stunned: "Turning back, we still have to approach! But, I heard that the runway of Yulong Airport is damaged now, so we can't land on runway 03?"
According to the flight direction of the 737 in front, it is clearly going to land on runway 03, which is different from the news she received.
Captain Chen Huaxin did not draw conclusions arbitrarily, but pointed in a direction: "Come closer, don't go down when the altitude reaches 700 meters, and keep a visual distance from that plane."
"Oh, okay!" The co-pilot flew to the airport.Suddenly, she said, "Master, are you planning to retire?"
The captain, Chen Huaxin, was stunned for a moment, but he didn't deny it, and said yes: "My report has been submitted, and I guess I will leave after this mission is over. I have been in this business for almost 20 years, and I haven't saved much money. When the girl grows up, she will need money, so she can only change jobs."
"So what are your plans?" the co-pilot asked.
Captain Chen Huaxin smiled: "I heard that there are tourist helicopters over Erhai Lake. I'll apply for it. It should be fine. Oh, I'm still on a mission. Don't say it, don't say it!"
The co-pilot was very obedient, so he didn't say anything.
At this moment, in the cockpit of Lantian 9200, Xu Cang has already started to intercept the course of No. 03 by driving the plane.In order to ensure that the glideslope can be intercepted, Xu Cang also deliberately flew forward a little bit, so as not to be too high and difficult to intercept the glideslope.
If the visual conditions allow him to see the ground, otherwise, he can't deviate too much.
Turning his head around, Xu Cang adjusted slightly, and quickly intercepted the localizer, and within half a minute, the plane intercepted the glideslope.Thereafter, the aircraft began to descend along the ILS signal.
To be honest, it's not that Xu Cang is hypocritical, but that he has never experienced the era of mechanical instruments.For example, pilots of the older generation flew more 737-300 models. At that time, there were many mechanical instruments, and the appearance might be better.However, not long after Xu Cang's actual flight, even the slightly more common spare instruments were changed to electronic ones, and he had never used mechanical ones much.
At this time, the localizer and glideslope of the mechanical backup instruments in the cockpit are represented by metal rods, and the metal feeling is suspended, so from certain angles, it is not easy for Xu Cang to tell where the plane is. Is there any deviation in roll or pitch.At the same time, the spare instrument is on the side of the captain, Xu Cang needs to look sideways, which is very inconvenient.
At this moment, Xu Cang was still regretting why he didn't switch to the left seat before takeoff.In this way, the broken windshield is not directly facing him, and it is not so troublesome to look at the instrument.
However, these are minor troubles, and Xu Cang's ability can still overcome them.As soon as the plane entered the final descent stage, Xu Cang began to lower the flaps and landing gear.However, the flaps cannot be fully released, only flaps 25 can only be released, and then flaps [-] and [-] need to be released in the final stage of visual descent.In fact, you can slow down during the level flight stage, but Xu Cang is anxious to land, and the landing will push back the timing of the deceleration, which is harmless.
According to the procedure remembered by Xu Cang, the plane should start turning at the altitude above the airport, that is, the AFE altitude of 2300 feet.Xu Cang made some calculations in his mind, and when the sea pressure was corrected to 7300 feet, Xu Cang stopped descending, turned right and headed 45 degrees, and started to deviate from the course.
In fact, it is more appropriate to use the autopilot to fly this program, but now the autopilot cannot be connected at all, so Xu Cang can only fly by himself.
After turning right 45 degrees and starting to level off, Xu Cang silently counted the time for 30 seconds while maintaining level flight.After 30 seconds, the aircraft turned to a three-sided heading.
Originally, the time to release flaps 25 and 23 should be after the runway cutoff and the visual runway, and the timing is corrected according to the altitude after the runway cutoff, which is about [-] seconds.
However, due to the good visual conditions, there are only some broken clouds in the area on Xu Cang's right side. As long as Xu Cang keeps the width of the three sides and does not leave the protected area, there should be no terrain influence.It's just that there are many peaks on Xu Cang's right hand, and the height seems to be very different from Xu Cang's flying height.
Xu Cang remembered that when he approved the visual circling approach procedure at Yulong Airport, he wanted to deny it because of the too bad flight environment on the three sides.However, the visual circling approach procedure at Yulong Airport happened to be on the sidelines of the standard, and finally Xu Cang agreed.It is just that Yulong Airport is specifically requested to send relevant reminders to all airlines operating in this field to avoid terrain problems.
When the plane turned to the third side, Xu Cang could clearly feel that the surge of the engine became more and more obvious. He didn't know how long the engine could last, so he had to shorten the flight time, and it was impossible for him to go through the whole procedure.
The width of the three sides cannot be reduced. If the three sides are too wide, it is easy to deviate from the protection zone. If it is too narrow, it may not be able to turn to the turning radius of the five sides.Therefore, he can only reduce the time after cutting the runway head.However, if the time is reduced hastily, the arc turning to the fifth side will be too narrow, and he may not be able to enter the field at the correct height, so he must slow down in advance, that is, put the flaps 25 and [-] in advance.
Before cutting the runway, Xu Cang began to reduce the throttle, and at the same time slowed down and lowered the flaps, which was also to extend the available time of the engine as much as possible.
After the flaps [-] were released, Xu Cang slowly increased the throttle to ensure that the plane could fly level.However, at the moment when Xu Cang slowly increased the throttle, the plane suddenly seemed to be affected by a gust of air current, and the whole plane veered uncontrollably to the right.
Such drastic changes in wind direction and speed are prone to occur in the vicinity of storm air masses.In normal times, the impact would not be that great, but now Xu Cang is just circling and approaching the edge of the protection zone with his eyes.Blown by the sudden air flow, the plane deviated from the protection zone at once.
As I said before, the visual circling approach procedure of Yulong Airport has very little margin. The right side of the three sides is full of mountain peaks. As long as it deviates from the protected area, there will be terrain danger.
Sure enough, the moment the plane was blown away from the protected area by the wind, the terrain warning sounded.
Xu Cang reviewed this program back then, so he naturally knew where the risk points of this program were.And at this moment, he just perfectly touched the biggest danger point of this program.
Almost instinctively, Xu Cang started terrain avoidance maneuvers.Push the throttle to the maximum, and then want to turn the left pressure plate with the stick to go back to the protection zone.
In fact, according to normal requirements, it should be a go-around at this time.However, the state of the engine and his own physical condition did not allow him to do it again. He needed to increase the distance between the terrain as quickly as possible, and at the same time turn back to the protected area. Maybe it could be repaired in this way.
However, the engine, which was originally at the end of its strength, finally failed after Xu Cang suddenly stepped on the accelerator.Engine No. [-] bangs and shuts down on the spot.
In this way, with the No. [-] engine still working, the plane itself began to veer to the left, and Xu Cang himself was pressing the plate to the left, which created a very dangerous state.
Due to the sudden shutdown of the No. [-] engine, the power of the aircraft was lost, and the consequence of suddenly pulling the lever under low thrust was a rapid decrease in speed.At this moment, the plane was already in the landing configuration, and the stall margin was relatively small. In such a violent area, the plane stalled directly unexpectedly.
After the plane stalled, it began to fall uncontrollably to the left again. Under the action of the two phases, Xu Cang's mind went blank and he spiraled!
At such a high altitude, the plane chose to enter the spiral, which almost declared the failure of the landing, and even whether it survived is another matter.Moreover, after the No. [-] engine stalled, the No. [-] engine also began to surge under the thrust, and it was about to stall.
With both engines stalled, there was no possibility of a go-around at all.In other words, Xu Cang lost the chance to do it again.
In this situation, it would be a dead end for any other pilot, an unsolvable situation where ten deaths would lead to no survival.
However, at this critical moment, Xu Cang's heart was beating like thunder, and he could even hear his beating heart.The muscles of his whole body tensed up instantly, his body temperature began to rise, and even a faint mist rose from the wet clothes.
This is not because of Xu Cang's superpowers, but because of the adrenaline rush, he is about to make a final fight for his own survival!
If it is said that the flameout of Feiyu's twin engines reflects Xu Cang's precise control of the aircraft, and the alternate landing in Tianshan shows Xu Cang's sudden insight, the 9811 incident reflects his terrifying mental arithmetic ability like a computer.
At that moment, when Xu Cang's life was at its strongest, when his energy was at its peak, under his desire to survive, every muscle and every nerve in Xu Cang was rapidly increasing. .
At this moment, it will be the peak that Xu Cang will not be able to surpass in his life. He just wants to win a chance in this mortal situation.
After Xu Cang realized that he was out of the threat of the terrain, he pushed the steering wheel to the bottom. If he wanted to get out of the spiral, he had to get out of the stall first, and then use the rudder to stop the momentum of the plane's circling.
During this time, the throttle must be turned off.Otherwise, if you push the stick with the throttle, the speed of the aircraft will increase at an incredible speed.During the spiral process, the gravitational potential energy of the aircraft is already converted into kinetic energy, resulting in a rapid increase in speed. If the accelerator is still used, the increase in speed will be uncontrollable.
However, Xu Cang didn't turn off the gas pedal immediately, but kept the No. [-] engine in its dying state.Due to the support of the pole, the angle of attack of the aircraft decreases rapidly, and while the power is maintained, the speed increases like a nine-day Milky Way pouring down.Before waiting for two seconds, the aircraft changed from stall shake to overspeed.
However, Xu Cang didn't care at all!Even after recovering from the stall, he didn't even use the rudder to stop the circling momentum of the aircraft immediately.
Because he knows that even if he corrects this spiral, he will not have another chance to do it again without motivation.So, even in a spiral, he had to bring the plane down.
If other pilots heard his ideas, they would laugh at his whimsy.But Xu Cang is going to do this against the sky.
Just after the first turn of the plane, the No. 180 engine, which was already unable to hold on, shut down directly.After a lap of acceleration, the speed of the aircraft has exceeded 25 knots, and the flaps have also been unloaded to the actual [-] position.Moreover, this airspeed continued to increase, but Xu Cang turned a blind eye to it.
He is waiting!Wait for a moment of vitality!
After the aircraft turned to the second lap, the speed had increased to 230 knots.At this moment, the huge wind pressure has already damaged the flap structure, causing a rattling sound.
The moment the plane passed the second lap, Xu Cang finally moved!
He put his foot on the right rudder to stop the plane's left helix, and then began to yank the stick.Xu Cang's movements were so rough that the vertical tail almost began to deform under the huge speed.The flaps were already overwhelmed, and Xu Cang pulled the lever so violently that the flaps were subjected to a greater load, and the left flap even began to disintegrate, but due to the structural connection, it did not fly away immediately.
PS —————The final landing part is in the author's words below, celebrating Qianjun.Next time we will have to wait for the [-] average or an important festival.Of course, doing this also means that some people have prostituted themselves for nothing and cursed at others, which makes me very upset!
The plane landed, give me a monthly pass or make me a bestseller first step, the category I've been thinking of is the best seller!
However, the movement of the flaps disintegrating made the whole body vibrate, and Xu Cang could clearly feel it.
However, Xu Cang's rough operation is not without reason.How accurate his advance calculation was, the last half turn was left to stop the spin of the plane, and at the moment the spin stopped, the plane was exactly aligned with the runway.
As a result, to outsiders, the plane appears to be drifting like a racing car, going from spiraling to cutting into final in an uncanny way.However, at this time, the speed of the plane was still 180 knots, which was too high for the plane to stop at all.
At this moment, Xu Cang directly pulled the speedbrake to the flight stop, the lift of the plane was suddenly damaged, and the speed dropped to an incredible degree.It was at the moment when the speedbrake was pulled up and cut into the fifth edge, due to the excessive state change, the air around the plane was squeezed violently, and it exploded in the air, like a sonic boom.
After the speed of the plane kept dropping, Xu Cang didn't retract the speedbrake until it was close to the second stick shake, and he just rushed down with the stick shake.
There is a certain margin for stick shaking, and Xu Cang wants to use this margin to reduce the speed as much as possible.
Almost before the outsiders could react, after approaching the sky above the runway, Xu Cang retracted the speedbrake, kept the plane slightly lifted, and smashed hard on the runway at ultra-low speed. The load was so large that it seemed The plane was smashed to pieces.
(End of this chapter)
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