Return to 2000: Captain of the Great Powers

Chapter 12 What happened to this plane?
A reaction time of more than one second cannot be counted as quick, but it must not be classified as slow.The captain missed the last chance to reject the takeoff because of this reaction time, which is not strictly his fault.

However, the captain did a good job. After getting the exact information, he could listen to it, no matter whether the information came from the mouth of the co-pilot or the mouth of the passenger Xu Cang.

Generally speaking, the autothrottle will ensure that the takeoff thrust is in the same state, but this kind of thing cannot be completely consistent.Normally, a thrust difference of 1% to 2% is acceptable.After the captain confirmed with his own eyes that the No. [-] engine had experienced significant thrust attenuation, even though the engine did not fail completely, he still decided to cancel the takeoff.

The decision itself was correct, but it was too late for him to make the decision.

When Xu Cang spoke, the captain's right hand was already making a gesture to pull back the throttle lever.If he got impatient and retracted the accelerator, it would be equivalent to blocking his entire retreat.Fortunately, even at such a critical moment, the captain was still awake, he didn't even look at the airspeed indicator, he just obeyed Xu Cang's words, and stopped closing the throttle.

After such an exchange of ideas, both the captain and the co-pilot focused part of their attention on the airspeed indicator.It can be seen that the hair of both of them is numb, especially the captain is in a cold sweat, just a little bit, he is about to make a big mistake.

And the co-pilot was not much better. Reporting V1 was originally his duty. This is an important standard call for the captain to make a decision, but he lost too much energy because of the abnormal data of the No. [-] engine. The monitoring of the airspeed indicator is a major breach of responsibility.

At this moment, the N1 speed of the No. [-] engine has dropped below [-], which is almost close to the speed used for taxiing, and it is no different from a slow car when it drops further.

The captain who survived the catastrophe was not so nervous anymore, he restrained his gratitude to Xu Cang for the time being, and concentrated on operating the plane.

At this time, the plane has exceeded the nose-up speed, but the captain did not pull up.This is not an operational error, but reflects the calmness of the captain.

When there is a single engine, the real experienced pilot does not rigidly follow the speed to raise the head, but to straighten the aircraft before raising the head.Otherwise, if the aircraft pulls up with sideslip, it will affect the climb performance of the aircraft.In extreme cases, the aircraft may even lose altitude and touch down again, which is quite dangerous.

Xu Cang in the back was worried that the captain would forcibly raise his head with the lever in a panic.But seeing that he chose to correct the sideslip of the plane first, Xu Cang finally breathed a sigh of relief.It seems that this captain is quite reliable.

Moreover, the captain is quite patient.The thrust decay of the No. [-] engine is gradual, which means that the thrust difference between the engines on both sides is constantly changing, which also causes the sideslip to be changing.The captain just kept the plane in the taxiing state, and then waited until the thrust of the No. [-] engine was reduced to almost the idle thrust, and the plane stabilized, and then slowly pulled the plane up.

When the plane looked up, the runway centerline lights had turned red and white, indicating that the runway was less than 600 meters away.Presumably the captain also noticed this situation, it can only be said that the captain is very calm.

As soon as the plane raised its head, it didn't feel like a normal twin-engine plane soaring into the sky, but it looked like a dying man dragging his heavy body forward with difficulty.

After liftoff, the plane didn't even have a positive rate of ascent after a full five seconds had passed.Of course, this does not mean that the plane is not ascending, but that the rate of ascent is too small to be displayed on the escalator.

The 737's elevator gauge needs to be greater than [-] feet per minute to have a display.

Although the plane is slowly rising from visual reference, there are some things that cannot be confirmed just by sight, because the eyes can be deceiving.

The concept of "positive ascent" in civil aviation should be reflected on the elevator table, and the instrument is more trustworthy.

About seven or eight seconds later, under the gaze of three pairs of eyes in the cockpit, the elevator finally responded, and the ascent rate was about [-] feet.

The three people who had already fallen into incomparable torment were all overjoyed, and the captain even shouted before the co-pilot reported that he was ascending: "Stop the wheel, stop the wheel!"

That's right, the three of them just waited for a definite rate of ascent before retracting the landing gear.The presence of the landing gear will inhibit the climb performance of the aircraft, but it cannot be retracted until it is determined that the aircraft is ascending.Because there is a problem that cannot be avoided in the case of a single shot, that is the secondary grounding.

Although at the beginning of aircraft design, it should be able to guarantee that under certain conditions, the aircraft can complete take-off and overcome obstacles under the condition of a single engine.But the theory cannot perfectly describe the facts, so there may be a situation where a single-engine plane cannot climb.

In this case, it is inevitable that the aircraft will be grounded again.In addition to ditching, it is better to touch down with the landing gear than without the landing gear.

Obviously, Xu Cang and others were relatively lucky, they did not face the problem of secondary grounding.

The rate of ascent, which had already begun to fall, finally managed to maintain a rate of ascent of [-] feet per minute after the landing gear was retracted.At a high-altitude airport like Jianchuan Airport, it is not bad to have an ascent rate of [-].

The co-pilot wiped his forehead, bringing down a hand of cold sweat.It took less than half a minute just now, it was really thrilling.When training on a simulator, single-shot is quite a common item, and if you do too much, you won't feel much.But when it came to the actual flight, he felt like his heart was about to jump out of his throat just now.

When Fei Yu flight 6321 was struggling to climb, the controller on the tower was sitting in front of the radar screen bored.The three planes handed over from the ground control seat have all been released, and Feiyu 6321 is the last one. There will be no flights handed over from the approach side at [-]:[-], so you can get about a quarter of an hour of free time.

He stretched fiercely, sitting for a long time made his waist sore, thinking about getting up and standing for a while.At this time, through the glass, the controller can overlook most of the airport, and the runway is naturally in sight.

"Sliding so far?" The controller muttered, "Is the plane heavy?"

From the tower, the tower controller could see that Feiyu's plane took almost half of the runway to pull up, and it was crooked during the taxiing process.Most 737s should be clear of the ground near the middle of the runway.

But he didn't think too much, glanced at the radar screen, and prepared to change the frequency of the crew.However, when he noticed the flight data of Feiyu 6321, he immediately realized something was wrong: "What's wrong with this plane?"

(End of this chapter)