Mo Shangyun glanced at the N1 speeds of the two engines and adjusted them slightly so that the two were highly consistent.

"Okay, next step!"

Xu Cang looked at the plane's altimeter and gently said: "Strongly control the locked or restricted system. Use the maximum force, including the two pilots exerting force at the same time when needed. The two pilots use the maximum force, and will not cause the steel cable or the system that fails."

This sentence is the original sentence in the flight control block or restricted inspection sheet. Its significance lies in removing the linkage between the left and right wheels.

The two pilot wheels of Boeing aircraft are connected together by a linkage device, that is, inputting the manipulation amount to one of the pilot wheels will also be reflected on the other driving wheel.

This is different from the inconsistent side rod input of Airbus. The side rod input volume of Airbus is superimposed on the left and right input volumes, that is, without the authority to close a certain side rod, if the left seat pushes the rod forward and the right seat has the same stroke as the rod backward, the reaction will cancel each other out on the aircraft control system, without any additional input of control volume.

This is essentially different from Boeing's control system.

Boeing can bring some benefits when controlling linkage, which will also cause a problem at that time. If only one of the driving wheels is blocked, the existence of the linkage device will cause all of the two driving wheels to be blocked, so the linkage between the two must be removed.

In the cockpit, the buttons or electric gates of the driving wheel linkage are not removed, so Boeing recommends that the way to disengage is to violently disengage!

That's right, it's just relying on brute force to separate the linkage devices of the two driving wheels, so as to be independent of each other.

This is different from the driving wheel just now when both of them pushed forward. The purpose is to remove the linkage device, so there will be some changes in the way of using force.

Mo Shangyun retracted his right hand on the accelerator rod, grabbed the driving wheel, and at the same time he loosened the driving wheel with his left hand, and opened his five fingers several times, as if he was relaxing his muscles.

"It's true that he's old!" Mo Shangyun sighed. Just now, Mo Shangyun pushed the pole forward more vigorously, perhaps because he used too much force, which made his left hand slightly sour.

It would have been incredible if this happened to Mo Shangyun ten years ago. However, no matter how heroes and heroes are, they cannot withstand the erosion of time. Teacher Mo Shangyun is almost at the age of retirement, and his physical fitness is really not as good as possible.

After relaxing his wrist for about five or six seconds, Mo Shangyun glanced at Tan Heling: "I'll take it back, you push it forward, isn't it a problem?"

If you want to disengage the linkage device, it is best to use the opposite force. In Boeing's design, no matter how much force the unit uses, violently disengaging the linkage device of the pilot wheel will not cause harm to the flight control system, so whether it is Mo Shangyun or Tan Heling can use the greatest force without worrying about damaging the aircraft.

"No problem." Tan Heling replied immediately.

Although Xu Cang heard Tan Heling agree easily, his breathing was a little unstable in his words. It can be seen that he used desperate force just now, as if he was a little exhausted.

Sure enough, the pilot sat for a long time, and although he was not seriously ill, he had nothing to do with his strength.

"Xu Cang, we try to remove the linkage device of the pilot wheel. Pay attention to the status of the aircraft. If there is any deviation, please remind me."

In normal times, Mo Shangyun's ability is to see all the six directions, but in a while, he has to use all his strength. He may not be able to distribute his energy, so he still has to let Xu Cang watch some.

Xu Cang nodded immediately: "I know!"

"Okay, let's start!" Before the action, Mo Shangyun also sent a signal to the cabin. This signal was the same as the signal that was about to encounter strong bumps, in order to let the people in the cabin sit well, so as to save the wheels from being disengaged for a while. The aircraft's status was too exaggerated due to excessive force, which caused the cabin personnel to be injured.

After giving the signal, Mo Shangyun and Tan Heling both held the plates in both hands.

"One, two, three, use force!"

With Mo Shangyun's order, the two of them used force at the same time, one pushed forward and the other pulled backward. From Xu Cang's perspective, Tan Heling's face turned red due to excessive force, and an extremely obvious blue vein appeared on Mo Shangyun's temple, which obviously had all his strength.

Although Boeing is known as an air gym, the amount of exercise is really amazing.

"Did this TM get stuck on both sides, or is the linkage device fixed too tightly? I'm really?" Tan Heling's face turned red from the beginning to turn pale. He felt that if this continues, he would have to lose his strength.

At first, Xu Cang was still a little worried about Tan Heling's condition, but when he heard Tan Heling shouting to greet all the eighteen generations of Boeing's ancestors, he breathed a little relieved and saw that Tan Heling was still in good spirits.

In comparison, the elderly Mo Shangyun seemed to be unable to hold on. A fine bead of sweat floated on Mo Shangyun's forehead, and it seemed that he was at the end of his strength.

"Teacher, come down, I'll take over you." Xu Cang patted Mo Shangyun's shoulder. If he was so tough, Mo Shangyun would have to do something after all. He should leave this kind of physical work to himself, a young man.

Mo Shangyun tried for a few seconds, but the driving wheel was still as if it was rocky. Now Mo Shangyun finally gave up and slowly let go of his hands. Xu Cang clearly saw that Mo Shangyun's hands were starting to tremble.

"I'm so old!" Mo Shangyun did not show off any more. He untied his seat belt and quickly gave Xu Cang a seat.

As the aircraft's altitude is getting higher and higher, the air becomes thinner, and the aerodynamic performance of the aircraft has also deteriorated. As a result, the original rise rate of more than 1,000 feet has also begun to slowly decrease. By the time Xu Cang and Mo Shangyun changed seats in the air, the rise rate was only more than 800, which is a relatively mild rise rate.

However, this is not a news that makes Xu Cang feel happy. Because the attitude of the plane is stuck, when the rise rate later reaches zero and the thrust reaches full thrust, the speed of the plane will be consumed.

Of course, compared with the uncontrollable increase rate of two or three thousand at the beginning, the current situation is still much better.

During the time of changing seats in the air, Tan Heling was always paying attention to the status of the plane, but no problems occurred. When Xu Cang sat in the left seat, he fastened his seat belt, held the plate with both hands, and took a deep breath: "Come again!"

After saying that, the two of them exerted force at the same time again. Xu Cang used all the strength of his body now, and he felt that his head was about to explode. After about ten seconds of high-intensity force, Xu Cang's left arm began to ache first.

At this time, Xu Cang secretly regretted why he didn't exercise much, so he really wanted to exercise in the air, but he couldn't count on it.

At this moment, Xu Cang finally understood why Tan Heling had just cursed. Now Xu Cang is also greeting the designer of Boeing aircraft in his heart.

Just as Xu Cang was thinking about whether to give up and find another way, suddenly, the originally motionless driving wheel seemed to loosen a little, and even Xu Cang could hear the slight clamping sound.

The sound was so crisp that the three people in the cockpit looked at each other at the same time.

"it works!"

Tan Heling almost screamed, and it was so useless that he wanted to smash the plane. However, there were signs of loosening now, and it was obvious that victory was right in front of him.

The dawn of hope has emerged. Xu Cang, who had originally wanted to give up, suddenly became energetic and exerted force again. With a more obvious sound of breaking, Xu Cang's driving wheel appeared to loosen significantly. Xu Cang was caught off guard and took the plane backwards.

"Okay!" Xu Cang moved the driving wheel a little, but it was actually said it was good, but not completely good, because the driving wheel activity range was obviously much smaller than normal, and he could only move forward and backward within a certain limited range. However, compared to the previous state of being completely stuck, it has been much better.

Xu Cang pushed the restricted driving wheel forward, and finally tried to push it to the front, while also closing the accelerator backward to avoid adding speed.

Although the forward travel of the wheel is actually not large, given that the pitch and balance have been moved forward a lot, the rise rate of the aircraft has been reduced to almost zero under operation, which is almost a flattening state.

"Yes, that's almost manipulated."

For people with technology like Xu Cang, this situation is already a controllable state. Even if it is an ordinary captain, it is likely that the plane can be dropped.

Just put the throttle back on a little longer and the plane can start to slow down.

Mo Shangyun, who was sitting behind, finally completely relaxed. He had just seen Xu Cang's control of the restricted driving wheel, and there was indeed no problem.

"Go back." Mo Shangyun wiped the sweat from his forehead. The operation just now did make him feel a little exhausted, and he felt that his body was almost sagging. He was thinking about landing quickly and then lying back.

At this moment, Tan Heling, who had already relaxed, twitched his mouth, wrapped his arms, approached his right hand to the ventilation vent, and asked Xu Cang: "Do you feel a little cold?"

Xu Cang was stunned. After saying this, he felt a little. He tried hard just now and sweated all over his body. After reacting, he felt a chill.

"Roll up the temperature and I'll contact the regulator." Now they have broken through the altitude. Although they have decided to return, they cannot fly randomly. They need to ask the regulator for the path of the return.

Tan Heling found that Xu Cang had received the communication, so he wanted to increase the temperature of the cockpit by himself. However, when his eyes moved up, he suddenly noticed the cockpit altimeter and lifting rate meter on the supercharged panel.

At this moment, the aircraft's height has been leveled. To be honest, the lift rate meter of the cockpit height should be less than 500 even in the climb mode. However, the instrument above shows that the cockpit height is rising at a speed of about one thousand feet.

"Xu Cang, is there something wrong with the height of this cockpit?" Tan Heling interrupted Xu Cang, who wanted to contact the control, and signaled him to take a look at the booster panel.

Not only Xu Cang, but also Mo Shangyun came closer to look at the supercharged panel.

"Is it slow to relieve pressure?" Mo Shangyun said first.

According to the 737 supercharged work plan, this rise rate is indeed abnormal. Moreover, compared with the supercharged altimeter, the cockpit height corresponding to the aircraft altitude should be about 5,000 feet at this moment, but the actual cockpit height has exceeded 8,000, which is obviously a problem.

"Due to rub the tail of the machine just now?" Xu Cang was puzzled, but his actions were still quite decisive: "What if it is, there is a problem with boosting the pressure anyway. Apply for a rapid drop first, and maybe you can even lower than 10,000 feet before the pressure is released."

Mo Shangyun nodded: "Yes, apply for a quick decline first."

Rapid decline and emergency decline are still different. The current situation has not reached the level of emergency decline.

However, just as Xu Cang pressed his fingers on the radio transmitter button, the index of the cockpit height lift rate meter suddenly increased. Tan Heling, who had been paying attention, was stunned and quickly surpassed the inspection sheet, turned the booster mode selector to the artificial station, and then moved the outflow valve to the full shutter to suppress the cockpit height to the again.

Originally, this was a pretty good and emergency measure, but when Xu Cang noticed Tan Heling's movements, his face suddenly changed and he shouted loudly: "Don't move!"

But as Xu Cang's violent shout fell, the outflow valve had been completely closed under the action of manual operation. In an instant, the value of the pressure difference indicator meter began to rise rapidly. Before Tan Heling could react, a huge blast sound resounded throughout the entire plane, and the tail of the plane exploded in the air!
Chapter completed!