Xu Xian quickly advised: "Director Cheng, it's not that bad, it's not that serious, this activity plan book has dozens of pages, and it won't be easy to digest after eating it!"

"You kid did this on purpose, didn't you?" Cheng Guangyu was very dissatisfied with Xu Xian's behavior of borrowing the donkey from the slope. He just said it casually, how could Xu Xian take it seriously?

Xu Xian laughed: "Director Cheng, don't be angry. Just kidding. Just kidding."

Among the crowd were all well-known figures in the civil aviation industry, but when these people faced Cheng Guangyu, they had to be respectful. After all, Cheng Guangyu was from an official family.

Among this group of people, it was probably Xu Xian and Cheng Guangyu who chatted and laughed happily, and even joked.

In fact, it was a bad rule for Xu Xian to ask Xu Qing to perform this performance in his place, and he would definitely be punished afterwards. But even in this context, Cheng Guangyu seemed to have completely forgotten about Xu Xian's bad rules and treated Xu Xian

His attitude is still very good. This shows what the bureau's attitude towards Xu Xian is.

There were also many airline representatives present. Seeing such a scene, they all felt extremely sad.

"Star Travel 6333, turn off the No. 2 engine." At this time, Lu Xinyu's voice came from the stereo.

This is not a radio conversation with the tower, just a routine status report at key nodes.

Xu Xian stopped joking and focused his attention on the five sides. The distance of thirty nautical miles was too far. Even if the weather was excellent today and there was almost no obstruction to the field of vision, he still could not find the location of the aircraft.

He glanced at the runway and found that the patrol car inspecting the runway had not yet entered the runway, and its movement was really slow.

"Is there anything going on?" Xu Xian seemed to feel that his right eye was beating uncontrollably. The so-called left eye jumped for money and the right eye jumped for disaster. The correctness of his hunch had been confirmed before.

Even though Xu Xian is a firm materialist, he still feels uneasy.

At this time, in the cockpit, the Xingyu 6333 aircraft that has intercepted the localizer has stabilized in the final direction. They will maintain altitude and intercept the glide path from below.

They approached according to standard procedures. They are still some distance away from the final approach fixing point, which means that it will take a relatively long time to intercept the glideslope. During this waiting time, the aircraft will remain in level flight.

This state is considered quite stable.

It is at this time that it is a good time to shut down the engine.

Therefore, after Lu Xinyu notified the engine shutdown operation in advance, they began the shutdown procedure of the No. 2 engine.

"Auto-throttle...disconnect!" Xu Qing pressed the auto-throttle cut-off button. Before turning off the engine, the auto-throttle must be disconnected. This is the operating procedure in the engine failure checklist.

"Auto-throttle disconnection." Turning off the engine requires caution. Lu Xinyu must verify every action of Xu Qing, even if he thinks that Xu Qing can do nothing wrong.

"Thrust handle...engine number two...retract light." According to regulations, this action requires Lu Xinyu's cooperation.

"You protect the first engine, and I will collect the second engine!" According to regulations, Lu Xinyu, as the PM, must protect the No. 1 engine with one hand, and Xu Qing, as the PF, must absorb the thrust of the No. 2 engine.

The reason for this is because when the engine thrust is retracted, the aircraft will begin to deflect. Only the PF can increase the rudder amount according to the rate of hand thrust to maintain the stability of the aircraft direction.

Because the deflection moment of the aircraft is too strong and has exceeded the maintenance limit of autopilot, it cannot fly on autopilot and can only fly manually. Therefore, in order to change the aircraft state as little as possible, Xu Qing controls the speed of closing the throttle relatively slowly.

.

It's not that Xu Qing can't turn off the throttle. It can only be said that turning off the throttle is okay but not necessary. Moreover, considering the deflection torque caused by the asymmetric flaps, if he turns off the throttle

, it cannot be said that the control limit of the aircraft cannot reach the point of correcting the deflection moment, and the aircraft will turn right uncontrollably at that time.

If the aircraft cannot maintain directional stability at the final single-engine throttle setting, then during go-around, if the throttle is larger and the deflection torque is stronger, it will be even more unsustainable.

If this happens, there is no need to fly anymore, just prepare to restart the No. 2 engine and land with both engines.

As Xu Qing continued to reduce the thrust of the No. 2 engine, the aircraft began to show a slight tendency to veer to the right. Fortunately, Xu Qing's steering control followed quickly, and the aircraft only produced a small amount of deviation, which was still within the acceptable range.

Only when the thrust was almost gone, Xu Qing had to do a lot of rudder trim and aileron trim to maintain control of the aircraft.

"Mr. Xu, it looks very dangerous." Lu Xinyu watched helplessly as Xu Qing adjusted the rudder and ailerons a lot, and at the same time, the control panel was almost pressed to the bottom. This shows that the aircraft's control ability has reached its limit.

, if the thrust of the No. 1 engine is slightly greater, it is hard to say whether the aircraft can still be controlled after this.

"Hmm..." Xu Qing naturally knew that the current condition of the aircraft was close to critical. If it were during the go-around, the thrust of the No. 1 engine would be much greater than it is now. He guessed that there was a possibility that the aircraft could not be controlled.

.

If the plane is really uncontrollable during the go-around, then even if Xu Qing wants to land in every possible way, he cannot ignore the obvious unsafe behavior. If the go-around is really uncontrollable, then he can only give up his subsequent plans.

Already.

Xu Qing felt that he was still some distance away from intercepting the glide path, so he said: "I will try to increase the No. 1 engine to the go-around thrust first to see if the aircraft can be controlled."

"Now?" Lu Xinyu also held the steering wheel with one hand. He knew that the plane might be in a very unstable state later, and Xu Qing's right hand had an old injury. There was no telling when Xu Qing would lose control of his right hand.

Therefore, he must be prepared at all times to take over the plane when Xu Qing has a problem, so that the safety of the plane is under control.

Xu Qing had no objection to Lu Xinyu's behavior of ensuring safety. Lu Xinyu's action was actually because he was worried that something would happen to Xu Qing, but Xu Qing was not arrogant enough to be pathological. Lu Xinyu's behavior was necessary and reasonable.

"You can do it later if you think it is necessary. Don't worry about me." In order to dispel Lu Xinyu's last worry, Xu Qing also gave Lu Xinyu a special instruction.

Although Lu Xinyu's hands were on the steering wheel, out of admiration and respect for Xu Qing, Lu Xinyu still had some hesitation in his heart. If he took control of it, wouldn't it mean that Xu Qing could not control the plane? Wouldn't it be disrespectful to Xu Qing?

Questions about ability?

Just when Lu Xinyu was worried, Xu Qing made it clear and everything was settled.

Upon hearing Xu Qing's words, Lu Xinyu nodded heavily: "I understand, Mr. Xu."

After saying that, in order to verify the status of the go-around as much as possible, Xu Qing then carried out the engine shutdown procedure: "I will protect the first engine starting handle, and you cut the second engine starting handle."

The division of labor for cutting the engine starting handle is different from the division of labor for retracting the thrust handle. The PF protects the good engine starting handle, and the PM cuts the bad engine starting handle. This is the opposite of the division of labor for retracting the thrust handle just now.

. This point is clearly stipulated in the standard operating procedures, and there must be no mistakes.

"Okay, verify that the No. 2 engine starter handle is cut off." Lu Xinyu made final confirmation before cutting off the No. 2 engine starter handle.

The starting handle is different from the thrust handle. When the thrust handle is turned off, the engine is only in the idle state. As long as the thrust handle is added, the thrust will naturally increase. But the starting handle is different. When the starting handle is turned off, the engine's oil supply will stop.

, the engine will completely stall and enter a windmill state.

Once the engine is shut down and you want to restart it, you need to go through the starting procedure, rather than just pressing a button or turning a knob. Moreover, starting the engine not only requires going through the starting procedure, but also takes a while.

Completion cannot be completed in a very short time.

In comparison, the engines of the 737 700 and 800 models are already relatively fast to start. If it is replaced by the MAX model, the starting speed will be even slower.

Precisely because cutting off the engine starter handle will cause various problems, it is necessary to confirm again and again when cutting the engine starter handle. If the engine starter handle is cut incorrectly, sometimes disastrous consequences will occur.

Xu Qing glanced at Lu Xinyu's finger on the starting handle of the No. 2 engine and confirmed: "The starting handle of the second engine is verified to be cut off!"

"The second engine is verified to be cut off!" After receiving Xu Qing's confirmation, Lu Xinyu immediately turned the engine starting handle to OFF. At this moment, the No. 2 engine was completely shut down.

There is still a difference between engine idle and complete flameout. Xu Qing slightly corrected the state of getting off the plane. After it stabilized, Xu Qing let out a long breath: "I started to throttle..."

As soon as he finished speaking, Xu Qing began to increase the throttle of engine No. 1.

Under normal circumstances, if it is a single-engine go-around, the running engine is usually filled up first to provide a sufficient ascent rate, and then the throttle is fine-tuned after the aircraft is stable.

Xu Qing definitely couldn't fill up the throttle, because he didn't know where the control limit of the aircraft was. If he filled up the throttle, the plane would directly lose control. What would happen?

Therefore, Xu Qing needed to slowly increase the throttle and gradually explore the control limits of the aircraft.

As the No. 1 engine's throttle was increased, Xu Qing's left rudder almost reached its limit, and the rudder trim and aileron trim were almost reaching their limits. Fortunately, the aircraft was still under control.

Compared with the simulator, the deflection moment in a single-engine aircraft seems to be smaller on a real aircraft. If the same situation were transferred to a simulator, the aircraft would have been out of control long ago.

Xu Qing continued to increase the thrust of the No. 1 engine while carefully maintaining the stability of the aircraft. It must be said that Xu Qing's corrections were provided in a timely manner following the increase in the thrust of the No. 1 engine, and the aircraft basically did not change in roll.

.

In terms of the precision of the control alone, Xu Qing's control is completely unlike that of a person with an old injury on his right hand.

When the thrust of the No. 1 engine increased to approximately 95, the aircraft began to turn uncontrollably to the right. At this time, Xu Qing had exhausted all means, which indicated that the aircraft's control capability was close to its limit.

Seeing that the plane began to veer to the right, Xu Qing immediately stopped increasing the throttle and at the same time slightly retracted the throttle to keep the plane within the controllable range.

"Mr. Xu, this should be the maximum thrust, ninety-five!" Lu Xinyu looked at the N1 indicator: "The thrust of ninety-five should be enough for a go-around. The rise rate may be slower."

Lu Xinyu has never performed a single-engine go-around in an actual flight, but he has tried it many times in simulator training and in this field training. The single-engine thrust of 95 can barely meet the thrust requirements for a single-engine go-around, and it is salty.

The altitude of Chi Airport is very low, which eliminates the problem of insufficient aircraft performance at plateau or high-altitude airports.

This is because under the conditions of the same attitude and the same climb rate for a missed approach, due to the thin air at high-altitude airports, the performance of the aircraft is limited, so it has greater thrust than at low-altitude airports.

If the single-engine thrust of 95 is placed at the Dianyun Airport, it will be a bit stretched, and he may have to evaluate it. But at the Xianchi Airport in the plain area, it is still a bit rich, but there is not much risk.

"Well..." Xu Qing has sufficient flight experience, and naturally knows that in the local airspace of Xianchi Airport, a single engine thrust of 95 should be enough, but he still needs to verify it.

Then, Xu Qing raised the attitude of the aircraft to the normal single-engine go-around attitude, which was about seven to eight degrees. He wanted to see what the rate of increase of the normal single-engine go-around attitude was under the condition of a single-engine thrust of 95

.

After Xu Qing put in a single-engine go-around posture, the plane was like an old man, struggling to climb up with his last breath.

It can be seen that even in plain areas, the aerodynamic performance of the aircraft is better than that in plateau areas, but under the limited go-around thrust, the ascent rate is still extremely impressive.

After waiting for a while, Xu Qing roughly knew the ascent rate under this thrust, which was only about two hundred.

"The ascent rate is too small, as long as it can climb up. If there is a go-around, the No. 2 engine will be restarted later, so there is no need to worry about subsequent flights," Xu Qing said.

He had already decided in his mind that if he did not fall down this time and went around, he would restart the No. 2 engine after the go-around and use both engines to land.

When Lu Xinyu saw that it was indeed possible to ensure continuous rise in a single shot, he naturally breathed a sigh of relief: "Okay, listen to Mr. Xu."

At this time, the tower, which observed the abnormal rise of the aircraft, asked: "Xingyou 6333, what's wrong with you? I see that your altitude has risen a little."

At this stage, the Xingyu 6333 aircraft should remain in level flight until it intercepts the glideslope. How could it still gain altitude?

Since the aircraft had already experienced flap asymmetry before, the tower was really worried that something new would happen.
To be continued...