Chapter 271: The Decision at the Head of the Runway (Dafeng Push!!) )

Chen Yi mentioned the problem of tailwind, which made Xu Qinghe react. They immediately checked the ATIS information, and sure enough, if the head was facing east, it was indeed a tailwind.

When the tailwind is too large, it will cause the engine blades to rotate, which will cause the N1 to rotate in the opposite direction, the hot gas will flow back, and then the engine will fail to start. In more serious cases, it can cause unsafe events such as overheating, starting suspension, and even damage to the engine.

Therefore, normally, the direction of the launch will allow the aircraft to start against the wind, and even if it cannot start against the wind, it will also swing an angle with the wind direction to control the downwind volume.

However, if the head is facing east this time, it is almost a positive tailwind, and the wind is very favorable in this field, and it is likely that the start will fail. Nowadays, time is of the essence, and a failure to start will waste a lot of time, and it is possible that you will not be able to catch the scheduled take-off time.

"Apron, blue sky 9885, do you think we can face west?" Chen Yi asked.

Xu Qing's parking position is at the head of a U-shaped area, with two sliding directions, both east and west.

"No way!" The apron frequency directly negated Chen Yi's request: "There is also a plane launched in the parking stand next to you, and he is the head facing west." ”

Hearing this, Chen Yi glanced at the right-hand side, and sure enough, there was a Lotto plane on their right that had been pushed away.

"Then can I wait for him to be affected before launching?" Chen Yi said.

Chen Yi found that the Lotto plane was a 737-700, and it didn't take long to start, he could wait for the Lotto plane to slide out before launching it, with his head facing west. Even if you have to wait for a while, the time is a little tight, but you should be able to catch up with it if you move quickly, and the risk is small.

Where do you know, the apron control is still stubborn: "Blue Sky 9885, you have a time limit, now launch the drive, head to the east." ”

"!" Chen Yi scolded unconsciously. There have been many incidents of tailwind start failures at K-City Airport recently, and the ramp control has not yet been taught a lesson?

Now that it is difficult to ride a tiger, the apron control brain can't turn, and he can only hope that there will be no starting failure for a while.

After deciding to obey the command of the apron control, Chen Yi contacted the ground maintenance to launch it, with his head facing east.

The ground maintenance is also knowledgeable, and when he heard Chen Yi say that his head was facing east, he also deliberately said that if his head was facing east, it was likely to start with the wind, and asked Chen Yi if he was sure that the nose of the plane was facing.

Chen Yi reluctantly admitted that it was indeed head-to-east, and the ground maintenance followed Chen Yi's instructions with a lot of confusion and pushed the plane out, head-to-east.

At this time, Chen Yi kept an eye on it and asked the trailer not to go first, in case the start failed, the direction of the aircraft needed to be adjusted slightly.

After the plane was pushed into place, Chen Yi braked the stop brake, turned off the two components one by one, isolated the flap automatically, and the starting configuration was completed!

"Two-shot ground position!" Commanded by Chen Yi.

A pair of Yiyi turned the engine starting valve to the ground position, and at the same time, the three of them began to look at the engine indications in unison.

After the engine starts the electric valve ground position, the valve opens, the pipe pressure rises, and N2 starts to indicate, and the key is N1 indication.

Normally, after N2 reaches 20%, N1 will start to display, even if it is slower after N2 reaches 25%, N1 will start to have N1 indication, but this time after N2 reaches 25%, N1 still does not move.

Xu Qing was so nervous that he forgot to breathe, looking at the N1 indication while looking at the clock that was timed. Waiting until the time reached fifteen seconds, N1 was still holding the pipa and half-covering his face, Chen Yi waved his hand irritably: "Forget it, start the electric door and close!" ”

A pair pulled the starting electric door back into the closed position, and Chen Yi said at the same time: "The starting handle is not lifted, so we don't need to turn cold." ”

Chen Yi thought that it would not work if he tried again, and if the start failed again, then they would probably not be able to catch up with the scheduled take-off time.

"Brother, the engine can't start, can you ask the trailer master to adjust the nose of the machine left and right a little?" Chen Yi consulted with the ground maintenance.

Fortunately, Chen Yi had some foresight and let the trailer not go, if the trailer was not there, they would not even have to slide out now.

"Captain, we are on the left hand side of the T25, if the head turns too much, it will affect the T25." The ground crew reminded.

Chen Yi sighed, they are now in T24 and T25 parallel to each other, if the nose adjustment is a little larger, whether it is left or right, it will affect T25, which is strictly forbidden.

"You can control it yourself, try to put it at a bigger angle, the tailwind is too big today to take N1." Chen Yi can only try his best to fight within the allowable range.

Ground maintenance knew the adverse effects of head-to-east from the start, and the first start failure clearly demonstrated the embarrassment of starting with a tailwind. Now the captain wants to remedy it as much as possible, however, he feels that it may not work too well.

But the captain asked for this, he must do it, communicated with the trailer master, and deviated the nose of the machine to the right by less than 30 degrees, which is already the limit that does not affect the T25.

"Captain, it's the limit now, do you want to try it again?" The ground crew said.

Chen Yi looked outside, feeling that the plane was not much off, and he was bottomless in his heart, but there was really no way: "Okay, I'll try again." ”

At this moment, the apron control saw that Xu Qing had not moved for a long time, and asked: "Blue Sky 9885, what's the problem?" ”

"The first start failed, now try the second start." Chen Yi replied.

"Blue Sky 9885, if the second start fails, your time will not be able to catch up, and the driving command will be canceled when the time comes." The apron said.

"Roger!" Chen Yi expected this, and immediately contacted the ground maintenance: "Second start!" ”

"You can start a second shot!" Ground maintenance road.

In the same program, the first pair pulled the starting gate to the ground, and the three of them began to focus on N1 again, the most important of which was N1.

Because the starter of the engine is actually quite small and does not have much power, it is likely that the fan blades that cannot be reversed will not be moved. Now the plane is a little off, and the tailwind is a little smaller, so it depends on whether it can work this time.

The eyes of the three people were about to pop out, and when the N1 trembled and moved, Xu Qing almost jumped up with joy.

There's a play!

As long as you have N1, everything is as usual, just a little bit longer.

The second start is completed, and the first shot is also good to start!

After the engine starts, quickly complete the pre-taxiing procedure and pre-taxiing checklist and apply for taxiing.

"Blue sky 9885, slide out along T24, E4, E front, etc!" The apron said: "Contact Tower 130.65!" ”

Xu Qing and they followed T24 and E4 when they were approaching E, and contacted the tower: "Blue Sky 9885, before E!" ”

"Blue Sky 9885, E, F1, outside runway 21, etc., fast!" The tower was directed directly to the head of the runway.

Blue Sky 9885 turns right onto E, and then you can slide all the way to the end of the taxiway, the end of which is to turn left is F1, and then you can enter runway 21 through F1.

The 0321 runway in K city is more than 4,000 meters, E4 is close to the head of the 03 runway, and the E taxiway is parallel to the runway, which is equivalent to the blue sky 9885 sliding from one end of the runway to the other, and the distance of four kilometers is still a bit long, especially the taxiing speed is limited.

"Blue Sky 9885, you slide faster, I'll see if I can make a gap for you to take off." The tower urged.

"Okay, thanks." Chen Yi replied that he had been maintaining a sliding speed of twenty-eight knots, which was very close to the limit of the sliding speed. At this time, the E taxiway they were on was a little downhill, and Chen Yi didn't dare to get too close to the limit of the sliding speed, so he still had to maintain a certain margin slightly.

With Chen Yi's response, the tower also began to direct the aircraft approaching on the five sides: "Dongfang 7143, reduce to the minimum speed, there is a release." ”

"Minimum speed received, Vostok 7143." Dongfang replied.

Just in case, the tower began to continue to adjust the rear interval: "Letto 7433, speed 160, and then ensure a release interval." ”

"Speed 160, Lotto 7433." The crew of Leto said: "Do you need me to reduce the minimum speed, I can establish the landing form in advance, reduce to the minimum speed, see that you are in a hurry, leave two release slots." ”

"There is a blue sky with a take-off time limit, and you have to take off in these two release slots, otherwise you have to wait for more than three hours." The tower is also a headache. There was not much time left for him to hand over the control of the apron, which made him extremely stressed.

"You don't have to slow down the minimum, otherwise the interval between you and the rear engine will not be enough." The tower said again.

The crew of Lotto was also enthusiastic, and said at the time: "Okay, speed 160, listen to your command!" ”

Xu Qing and they were also listening to the tower frequency, and when they heard the words of the Lotto unit, their hearts warmed, and Chen Yi thanked him in the tower frequency: "Thank you, brother!" ”

The Leto crew was interesting, and replied with a smile in the frequency: "It's a small thing, and besides, I didn't help anything!" ”

At this time, the Dongfang crew in front also spoke: "Do you need me to maneuver left and right?" I think I can buy some time. ”

"No need, your altitude is too low now, and you can't maneuver much time, so get out as soon as possible after landing!" Tower Road.

Blue Sky 9885 slid all the way to F1, and Chen Yi was just about to turn into F1 to outside the No. 21 track, when suddenly a thought came to his heart and immediately stopped before F1.

He raised his head slightly, his eyes were just facing the five sides, the weather was good today, the five sides were very clean, and he could already see the approaching eastern planes on the five sides.

Chen Yi looked at TCAS again, and the Dongfang plane was already only five nautical miles away from the runway.

"It's too late!" Chen Yi sighed, it was impossible to release a plane at an interval of five nautical miles.

Sure enough, the tower said to Blue Sky 9885: "Blue Sky 9885, I don't think you can adjust the release interval, do you think you want to slide back?" ”

Chen Yi took a look at TCAS, and the gap between Leto and Dongfang behind them was not as big as he imagined, and they were afraid that they still wouldn't be able to see the stitches.

The tower must be more professional than itself in terms of release intervals, and if you can't adjust the interval, it should just not be able to adjust.

"Then I'll slide back into the runway after Letu lands later?" Chen Yi asked.

The E taxiway where we are now cannot allow the plane to make a 180-degree U-turn, and the plane cannot reverse, so if you want to slide back, you can only go to the runway first, then slide out of the runway, and finally slide back again.

"There is another one behind Letu, and after it lands, you can enter the runway and disengage to F on your own, and now the parking slot for you is 554." The tower discussed with Chen Yi: "If you agree, I will help you contact the apron." ”

The plane taxiing back is not a matter of nothing, you need to notify the guide car, contact the maintenance, all of which must be arranged in advance, not a brain beat, and you can slide back if you want to.

As soon as Chen Yi heard 554, he almost spurted out a mouthful of old blood. The 554 parking stand is next to the hangar of the East, and from the 554 parking stand, more than 30 Dongfang planes are lined up. Every time I pass by, looking at the Oriental planes lined up in line to bask in the sun, I all sigh that the East is really rich.

The great cause of the Dongfang family is envious, jealous and hateful, but the location of the Dongfang hangar is really remote, and its location is at the head of runway 03, and their current position with Xu Qing is really the end of the runway. At the same time, 554 is still a remote stand, as we all know, the efficiency of the guarantee service of the remote stand is far less than that of a covered bridge, in case there is any problem in the future, it is not a delay in time? And 554 is basically the most remote corner of the airport, so there will be more time wasted.

Therefore, it can be seen from this that the captain is not only thinking about flight control, but also about all aspects of the flight.

"Is the original parking slot no longer available?" Chen Yi thought that although the original parking bay was not close, there was still a covered bridge, and it would be more comfortable to do anything.

"There are already other arrangements later." Tower said. The bridge is not bound to the aircraft, after a plane slides out, the airport can not let the bridge remain empty, and other planes will be arranged to dock the bridge in the future, which is a normal operation, and Chen Yi can also understand.

"Can't there be a covered bridge?" Chen Yi still doesn't give up, he doesn't care if he has a good location or not, he just needs to give a covered bridge.

"You're going to be out of action for more than three hours, and there's no matching bridge location for the time being." At this time, the excessively long parking time of Blue Sky 9885 has become a difficult point to deal with, and the airport really doesn't know how to allocate parking spaces for a while.

At this time, the plane of Lotto Airlines roared by, and seeing that the plane of Lotto Airlines was grounded, Chen Yi knew that there was not much room for him to choose, and he had to make a decision as soon as possible.

Because of the mistake of apron control, they had to wait for more than three hours, which already made him upset, and now it is not possible to arrange a better parking space, which makes him feel that the passing year is not good.

When Chen Yi was thinking, he suddenly found that there was an apron in front of him, and suddenly he had a bright light: "Blue Sky 9885, can you see that I can turn right and slide into the cargo apron?" ”

Runway 03 is connected to the Oriental Reserve, and the apron connected to Runway 21 is the airport's cargo apron, which contains many heavy cargo aircraft.

"Blue Sky 9885, you wait a minute, I'll communicate with the apron." Tower said.

Chen Yi thinks that it is better to park at the head of the runway anyway, and you can enter the runway by sliding out later, how trouble-free!

It didn't take long for the tower to reply: "Blue Sky 9885, you can carry 341 by yourself, you slide into the apron and wait for the maintenance first, and the maintenance will come over immediately." ”

Blue Sky 9885, now before the E taxiway F1, there will be planes coming behind after a while, they can't always occupy the E taxiway, so they have to enter the cargo apron first, and then wait for the maintenance.

From here, it can be seen that Chen Yi is experienced. The tower commanded the plane to taxi to F1, outside runway 21, etc., but Chen Yi himself estimated that the take-off interval should not be enough, and the plane immediately stopped before F1.

If they do follow the instructions of the tower and slide out of the runway, although it is true, but to slide to the cargo apron, they must enter the runway and then disengage, and then go around in a circle to come back, which takes a lot of effort.

Although it's not a big deal, but the subtleties see the skill, at least Xu Qing didn't expect it.

The reason why the tower asked the blue sky 9885 to wait is because the aircraft can carry without a guide car and carry out independent carrying, but it must be guided by the machine. Because it is a temporary notice, Blue Sky 9885 can't slide into the parking position stupidly after turning right and sliding into the cargo apron, and needs to wait for the maintenance to be in place, and it can only be carried under the guidance of the maintenance. This is also for security reasons and cannot be omitted.

After getting the taxiing permission from the tower, he first slid into the cargo apron to confirm that the taxiing distance was enough for the fuselage to enter the apron, and would not let the tail affect the E taxiway, and then stopped on the spot and waited for the aircraft to be maintained.

At this time, the frequency shifted from the tower back to the apron!

After the plane stopped, Xu Qing held back his stomach and finally had time to speak, Chen Yi had been communicating with the tower just now, and he was not easy to interject.

"Brother, this plane has slid out, how can there be a saying that it is still sliding back! Won't they count time? Otherwise, don't let us slide out, save time and fuel. Xu Qing complained.

Just waited for ten minutes, although the two engines were slow, but they also had to burn a lot of fuel, which was all money.

Xu Qing is not distressed by Blue Sky Airlines, but he has lived a poor life, and he will always feel ashamed of waste.

Chen Yi smiled bitterly: "It's all good, the gliding time is easy to calculate, but it's not easy to calculate with the release interval, people also want to let us out, but God can't help it if he doesn't let us go." ”

"I forgot about it at that airport before, and that's weird. There were no planes in the sky, and we had five minutes to go, and as now, we had to wait a long time to miss the time. I thought five minutes was impossible, but I was put on the slide. I thought the airport was buying me extra time, so I slid out in a frenzy, and halfway through the slide said I couldn't make it to time, and let me slide back. You say it's not annoying to be angry, isn't that playing tricks on me? Chen Yi recalled: "I can't understand even a gliding time, which is the most annoying." That's called injustice, you know? ”

Xu Qing heard Chen Yi's tragic past, and secretly laughed, this matter can't help but compare, and I also found that today's tower control is still a conscience, but the level of apron control is really not very good.

If it weren't for the ramp control, they might have all taken off by now.

"Then the company won't find fault with us if we don't catch the take-off time, right?" Xu Qing said worriedly.

Chen Yi was taken aback: "Are you still afraid that the company will find fault?" I thought you were gone! ”

Chen Yi can still joke at this time, Xu Qing estimates that it shouldn't be a big deal, but he can't rest on his mouth: "I'm not itchy, and I'm still looking forward to the company to loosen my muscles and bones?" ”

"Hahaha, you don't have to loosen your muscles and bones, it's just that this unlucky luck is a little heavy." Chen Yi quipped: "There are many temples in the city, you can find a random incense to wash away the bad luck on your body." Or find an old way to tell your fortune, what is the fate of the situation where you are running into trouble everywhere! Destiny, that's what you say, right? ”

"Don't forget it, I'm just a storm, and I can't be idle in this life!" Xu Qing waved his hand.

Chen Yi originally said it casually, but he didn't expect Xu Qing to really say that he was ugly, and he was immediately interested, and wanted to ask a few more words, but he happened to see the aircraft maintenance coming, and said a little to the apron, and said goodbye directly after receiving the aircraft service guidance.

Due to the long waiting time, Chen Yi still turned off the engine, and then returned to the release frequency and asked about the specific delay time. The delay time given for the release is three hours to start, remember that it is three hours to start, and there is no upper limit.

Even if they were mentally prepared, hearing such "bad news", Chen Yi and the three of them still looked at each other and smiled bitterly, and called the purser into the cockpit.

"Now there is flow control in T City, more than three hours, you can go to the radio in a while." Chen Yi told the purser that when such a clear long delay occurs, the crew still has the responsibility to inform the passengers. Passengers have the right to know about this, mainly for the sake of passengers adjusting their mode of transportation according to delays.

With such a long delay, it is still possible for passengers to cancel their trips.

"Is three hours a set?" The purser asked.

The reason for this question is that there will be two situations during flow control, one is that the time is fixed, that is, the delay of three hours is fixed and will not be changed.

Another situation is more disgusting, that is, the time is not fixed. In this case, an approximate time may be given depending on the specific situation of flow control, and sometimes no time may be given at all.

A situation like Blue Sky 9885 belongs to the second type, and the delay time of starting from three hours is not fixed, and Chen Yi has verified it from the release frequency just now.

The time is not fixed, that is, there are two situations of increasing and decreasing the delay time, but according to Chen Yi's past experience, the probability of the delay time being reduced is very small, but the possibility of increasing the flow control is greater.

"Just talk about it for three hours, I can't give you a letter right now. If there is any time change, I will contact you as soon as possible. Chen Yi said: "I'll contact AOC in a while to see if I can help coordinate it, but according to my estimate, the effect is not big, so don't have any hope." ”

"Mr. Chen, I know about this flight, and if I can be on time, I am lucky." The purser is also an old senior, and she still knows what the situation is like on the T city flight.

Chen Yi continued to instruct: "Now we are on the cargo apron, any passenger wants to stop the trip in the first two hours, no problem, you tell me, I can contact the scene." However, if you want to cancel your trip in the last hour, try to persuade me, and if you can't tell me, it's best not to have a large-scale cancellation of the trip in the last hour. ”

When the purser heard Chen Yi say this, he suddenly remembered something: "Mr. Chen, we have a tour group of thirty or forty people on this flight. ”

Chen Yi was taken aback, and hurriedly asked, "What about age?" ”

The purser's face was entangled, and finally said, "Most of them are old people!" ”