Chapter 523: Cabin Power Outage and Oxygen Supply Failure
"Tower, don't be afraid if I report it."
Li Zhan's voice was very clear, and he was cruising 6,000 meters away from 120 kilometers, so the short-wave radio reception was very good.
But when Lao Chen and others heard this strange words, the first thing they thought was: What do we mean, don’t be afraid, you should be afraid, right? Then they were stunned: Hey, what does it mean, what is the fault?
Is it right?
"Tell me what happened to Dongsanguai!" Old Chen was not used to Li Zhan's problem and asked sternly.
Li Zhan replied, "My cockpit is powered off."
All were stupid.
Even Old Chen was shocked.
Li Zhan reported the situation himself, "The display system should be turned off for one level and three levels, the lighting system is also turned off, and the backup instrument is invisible, but the horizon is normal, but there is no backlight."
Old Chen suddenly reacted, "Dong Sanguai, has the Mengbu fallen off?"
"No, but I carry a flashlight..." Li Zhan said.
He actually carried a flashlight with him!
This time, the pilot did not carry standard equipment, otherwise there would be flashlights in the emergency rescue organisms in the equipment, but Li Zhan actually brought the flashlight himself. What kind of predictive ability is beyond human imagination?
"Troubleshoot the fault, keep the course high, and don't move the throttle lever!" Old Chen issued an order quickly, and all three requirements were very correct. The most urgent task was to keep the No. 037 J-7eggh in its current flat flight state.
Li Zhan quickly replied, "Dong Sanguai understands!"
Old Chen immediately ordered the emergency plan to be activated and said to the staff around him, "Report to the command post and ask that all aircraft in the airspace ahead of Sangui are immediately cleared, especially civil aviation, so that their planes can be moved away!"
"yes!"
The air traffic over the Bohai Sea is very busy, and the routes are intertwined and seem to be a mess. Because there are several international airports along the coast, the flight altitude of civil aviation passenger planes usually continues to decline when entering the Bohai Sea airspace.
And most of them are international flights.
According to the plan, the next command of the tower would require the No. 037 J-7eggh to descend to the flight altitude to avoid the busy routes of civil aviation, but now Mr. Chen dare not do so at all!
The power outage of the cockpit means that the pilot cannot obtain flight data through the instrument panel and loses its grasp of the state of the fighter. Most of the data of the No. 037 J-7eggh is presented through a one-level and three-step display system. If there is a problem with this system, it means that the pilot will
There is no other way to communicate with the fighter except for two poles and two rudders.
The luck of the misfortune is that the horizon in the backup instrument is normal, but there is no backlight. However, Li Zhan can use a flashlight to assist in lighting. It is very important for the pilot to grasp the pitch and roll state of the aircraft at any time. At this time, Li Zhan can at least
It is guaranteed not to drive into the sea.
Old Chen used the emergency plan as fast as possible, and Li Zhan had actually started to investigate according to the procedures. He found that the power supply was normal, so he concluded that the problem should be on the line.
Many people don't know that he had encountered the same air danger when he was working in the Second Division. That time it was a night flight, but after decreasing the altitude, he could at least see the lights on the ground. Now he can't see anything outside the cockpit.
The situation is more dangerous than the previous one.
After executing the inspection procedure, Li Zhan reported, "The tower, the inspection procedure has been completed, and there is no result. I judged that there must be something wrong with the line."
"Are other systems normal?" Old Chen asked.
Li Zhan could not move the accelerator rod, joystick and rudder. He replied, "I feel that the posture of the fighter should be normal and the thrust is very stable."
If it is the original old flight control system, Li Zhan's hand must keep holding the joystick and keep the fighter flying flat by constantly raising the rudder. After changing to the new flight control system, the No. 037 J-7eggh has automatic leveling
Function is an obvious feature of the third-generation machine.
In other words, as long as there is no problem, Li Zhan will not move two rods and rudders, and the opportunity will continue to fly at high speed according to the previously set course until the fuel runs out.
This is also the reason why Old Chen ordered him to leave the rod and the rudder as soon as possible.
Li Zhan suddenly frowned and reported, "The tower, applying for a height, it seems that there is something wrong with oxygen supply, and the amount of oxygen is decreasing."
Another failure.
The pilot will not last long without oxygen supply when flying at a height of 6,000 meters.
Before each flight, the plane has to refuel and recharge oxygen. What is the approximate amount of oxygen? Take the J-7 as an example. If you add oxygen and fly for a whole day, you won’t be able to reach the end, so there will never be a problem of insufficient oxygen.
The reason for the reduction in oxygen volume is 80% of the leakage or pump failure.
The plane didn't fly much, and it was kept in place since the factory. Peng Chubin's maintenance team was also very meticulous. The reason should not be that it was on the side of the airport. The most important thing is that the cockpit power outage and oxygen supply failure seem to be two types.
With completely independent types of faults, Li Zhan could think of only one possibility to connect the two - like airspeed tube failure, it is a line failure caused in a high-salt environment.
Airplanes will also be unacceptable.
But Li Zhan had a strange feeling--the old guy might not be good.
Li Zhan can't count how many times he made major changes and minor changes and major repairs, and he can't see what he was like now. In fact, the main structure is still the original old skeleton. The manufacturer is making such a big one based on this
Improvement is undoubtedly a very test of skill, but the actual combat performance remains to be discovered.
No matter what, let’s fly back first.
As long as the engine can still provide power and as long as the wings are not broken, Li Zhan will be sure to drive the plane back.
Old Chen responded to Li Zhan’s request immediately, “The height of the cave three turns down, the angle of the descent should not be too large. Follow my instructions to restore the level flight. Do you understand?”
"The cave three kids understand!" Li Zhan re-engaged his hands and feet. When he held the accelerator and joystick, he felt that the control of the fighter was back in his hands.
His movements are very gentle, gently pushing the rudder slowly pushing the rod and slowly pulling the throttle backwards. The increase in the angle of the deflection will increase the speed, so the action of retracting the throttle is essential. In the case of "isolating from the world", Li
Warfare cannot allow fighter jets to fly too fast, and the possibility of a fighter jet that has two consecutive failures continue to fail is high.
The atmosphere in the tower was solemn, and the radar officer stared at the display screen, representing the red dot of the No. 037 J-7eggh at a steady decline height, 5700, 5400, 5100... The radar officer reported every 300 meters and monitored closely.
Heading and speed. The ground radar detects the speed of the fighter relative to the ground, that is, the ground speed, and airspeed.
At 4,000 meters, Li Zhan took off his oxygen mask and breathed a lot of relief. He slowly leveled according to the instructions of the tower. Finally, the level flight was restored at an altitude of 3,600 meters, and the course did not change. He put it on his left hand.
Take the flashlight and shine it at the horizon, confirm that the pitch angle and roll angle are kept in the correct position before resting.
There is no big problem with maintaining attitude flying, the big problem is landing.
At this time, several staff officers had already begun to study the plan urgently, and they had never encountered such a situation.
One of the major staff officers said solemnly: "In November last year, a certain unit of China Southern Airlines crossed day and night. A flying leopard was powered off shortly after taking off, which was very similar to the current situation. And the flying leopard's flight control system at that time
Disconnect and the pilot will control all manually.”
"It's different." A senior lieutenant colonel staff member shook his head and said, "The flying leopard in a certain unit of China Southern Airlines was just powered off at the front cabin, and the display in the rear cabin was normal. The rear cabin pilot guided the front cabin pilot to successfully land on a blind basis.
It was around 6:00 p.m., and there was some visibility. To be honest, it was not very difficult."
The senior lieutenant colonel looked at the radar display and said in a deep voice, "The situation of Dongsanguai is even more dangerous, he can't see anything."
The dark cabin, sea and air space of 100 kilometers, combined with these two factors, Li Zhan is much worse than the power outage of a Flying Leopard cockpit of HNA. Moreover, he only has one engine, if a series of faults affects the engine, it will cause it to cause it.
If the engine fails, he can only be a paratrooper.
The Major Staff said, "Only guide the ground, there is no other way."
The senior lieutenant colonel nodded slowly, "Mr. Chen can only guide the ground, mainly relying on the pilot's control."
Old Chen also knew that it was one thing to guide, and whether the aircraft could be consistent with the guidance instructions was another matter. In the final analysis, it depends on the pilot's skills.
Without hesitation, Old Chen immediately called Li Zhan, "Dong Sanguai, it is still the ground that guides you to land. Pay attention to leaving the allowance when manipulating. Do you understand?"
"Dong Sanguai understands it."
Dark cabin flights rely entirely on ground guidance, but now Li Zhan cannot obtain fighter flight data through the display system and must wait for ground notification. However, ground radar can only measure a few key data and inform Li Zhan of this process.
There is a certain time delay, so Old Chen specifically reminded him to leave some allowance when manipulating.
Zhang Xueyang, Cao Fufei and Tang Leilei also knew what happened in the flight briefing room. The three of them were very nervous. Even Tang Leilei, who had always been very loyal and knew Li Zhan's ability to deal with danger, had a little gray face.
.
It is really too difficult for the danger this time.
Zhang Xueyang remembered the most serious danger that Li Zhan encountered when he was in the Second Division. I don’t know whether it was self-comfort or that Cao Fufei and Tang Leilei didn’t have to be too nervous. He recalled, “Old Li got out of the army and drove to the Second Division.
It was this Dongsanguai J-7e. Once I was in air combat training with my wingman and I, Lao Li, was on duty on duty. When he returned, the weather suddenly deteriorated and the weather changed very quickly. After I landed, the game no longer had landing.
condition."
"Yes, yes." Tang Leilei's memories also woke up, and said in a deep voice, "At that time, the tower ordered the first brother to prepare for landing in northern Guangxi, but it was not long after that it encountered a lightning strike and triggered a fire in the engine compartment. The first brother had to return to the field.
Prompt landing. I remember that the gusts reached level 8, heavy rainstorms, and the visibility was only a few dozen meters. At that time, we all thought that the No. 1 brother was going to... Who would have thought that the No. 1 brother had a successful forced landing! At that time, half of the fuselage was burning."
Zhang Xueyang nodded slowly and seriously, "Yes, it's a miracle. Li Zhan is fully capable of dealing with the danger in front of him, and I don't think there is too much worry."
At that time, the case was already formed and sent to the entire army's aviation troops. As an optional plan in extreme cases, it was included in the second-company dangerous situation handling plan system, so Cao Fufei knew about this. The pilots privately commented.
Among the top ten classic cases of empty situation handling, Li Zhan dealt with five cases...
The unofficial name of an expert in handling dangers is not merely a false name.
Cao Fufei said worriedly, "There was visibility at that time, but now he has no visibility at all, not in the cockpit. He is now similar to a blind man."