Chapter 447 retracting the landing gear and landing
Under full load, it is impossible to complete the normal landing with only two normal-working engines, and the crew has a very clear understanding of this.
"Cut off one and two fuel oil supply!"
"It's cut off!"
"Close one and two shots!"
“It’s closed!”
The captain and the co-pilot completed the measures to be taken after the engine caught fire in a very short time, but they found that the fire lights of one or two were not turned off, which means that the engine fire was still continuing. The captain could see that
There was thick smoke spraying out of the No. 2 engine, and perhaps the flame was in the engine compartment. However, the co-pilot could not see the No. 2 engine close to the fuselage, so he could only make judgments through the indicator light.
"The altitude is decreasing!" The co-pilot reminded the captain.
The captain adjusted the power of three and four rounds to the maximum, "maximum power."
He hoped that the two engines would do miracles, but was disappointed to find that the instrument showing the climb rate gave a negative number, which means that the plane was still descent.
The co-pilot shouted, "The plane is too heavy, we can't maintain altitude!"
"Central, South, Central, South, here is 8y1771. My two engines stopped working and were accompanied by fire. I called for help and I needed emergency rescue!"
Zhongnan Air Control quickly entered a state of emergency, and the air control officer in charge called out, "8y1771, can you see the airport? It's twenty kilometers ahead of you, you can use any runway!"
"I can see the airport!" The captain was able to see the airport's location from the instrument panel in normal working conditions.
The co-pilot was nervously calculating the farthest voyage distance of the plane. He nervously told the captain the answer, "We can't get to the airport, we can't get to the airport, the plane is too heavy!"
Even if all the engines are lost, the Y8 can glide for a distance with the aerodynamic layout design, which is completely different from the fighter. With sufficient altitude, gliding for only 20 kilometers is not a difficult task, so the biggest difficulty the crew needs to face
It will be a landing without motivation.
However, the 8y1771 is in the maximum weight state and the fuel in the aircraft is still half the fuel. Therefore, although there are still two engines providing thrust, based on the current descent rate and flight altitude, the answer obtained by the co-pilot is that it cannot reach twenty kilometers.
Outside tourist airport.
Don't forget that they have entered the mountainous area, with a clearance height of less than 2,000 meters.
The captain was obviously very clear about the current situation, so he quickly made a decision, "Look for a flat land, we want to make a landing! Central and South China, we can't get to the tourist airport, I want to find a landing for a landing!"
Zhongnan Field Station is an air force's reserve landing airport rather than a civil aviation, so the civil aviation reserve landing airport directory does not have this airport, and most pilots do not know the existence of this airport, including those pilots who often fly this route.
While looking for an open space, the co-pilot was the first to discover Zhongnan Station. He pointed to Pingtoushan at two o'clock and said in surprise, "Running track! Look! There is a runway there! It's just at two o'clock! It's the runway, right?
!”
The flight mechanic who served in the Air Force Ground Service suddenly said, "I remember there is an air force station nearby. Yes, there is one! We can land there!"
The captain quickly looked at the distance, but only a distance of seven or eight kilometers, and another village was dark and bright.
He quickly contacted Zhongnan Air Control, "Central and South! There is an Air Force Airport at 221 degrees, about seven kilometers away, and I want to make a landing there! Repeat, there is an Air Force Airport at 221 degrees, about seven kilometers away, and I want to
Prompt landing there!”
The director of Zhongnan Air Control Department did not hesitate at all and immediately contacted the Air Force Regional Control Center for help, and received a quick and affirmative response.
8y1771 quickly turned and aimed at Zhongnan Station.
At this time, it was when Li Zhan was about to leave the flight tower of Zhongnan Station.
Li Zhan held up his telescope and looked north. A civilian Y-8 medium-sized transport aircraft dragging two streams of black smoke flew towards the field in the heavy rain. Fortunately, Zhongnan Station has been rating these days, so both sides of the runway
The runway lights are on at this time, otherwise it will be difficult for the crew to see the runway of Zhongnan Station several kilometers away with such visibility.
"The two engines are on fire, and their situation is not good." Li Zhan said as he handed the telescope to Zhang Wei.
After Zhang Wei looked carefully, he said, "The entry speed is too fast, they will rush to the bottom of the valley."
Although the on-duty commander is not as experienced as the big station, he is definitely well-trained. And now he sees the danger expert Comrade Li Zhan, so he is naturally more at ease and confident.
He quickly contacted 8y1771, "8y1771, Zhongnan Tower calls, your entry speed is too fast, our runway is only 1,200 meters, and there is a cliff at the end, you must slow down your entry speed!"
"Zhongnan Tower! My flap is stuck! Repeat! My flap is stuck!" The captain's voice was very nervous. He just saw some hope but another fatal failure occurred.
To increase the stress surface by adjusting the flap to change the pitch angle of the aircraft is the main means of air deceleration. The flap stuck means that the 8y1771 has lost the main means of slowing down.
The commander on duty subconsciously looked at Li Zhan, who did not hesitate at all and said, "The engines are turned off. It is better to hit the runway than fall into a cliff."
"8y1771, it is recommended that you turn off the remaining two engines to slow down! You must control the entry speed within 210 kilometers!" said the duty commander.
The commanders of the troops are used to ordering, so they use a commanding tone. If they are civil aviation controllers, they will fully respect the subjective opinions of the pilot, because the captain is most familiar with the latest situation of the aircraft. However, in the military,
That's not the case at all.
Li Zhan had just seen the information of the 8y1771 cargo flight fax fax sent by the civil aviation administration department. He found that the cargo flight was loading too much cargo and fuel. According to the observed aircraft posture, he noticed that the decline rate of 8y1771 was far greater than that of
The normal descent rate under operation of the two engines is proved that the judgment that the aircraft's weight is too large and seriously restricts the aircraft's performance.
Don’t forget that he is very familiar with the Y-8 aircraft!
Therefore, he gave suggestions very decisively.
Turning off the other two engines in normal operation makes landing very difficult. Although the captain had trained in the simulated cockpit for unpowered landing, everything still seemed dangerous.
However, compared to falling into the mountain thousands of meters below, the plane is a better choice no matter how it stays on the runway, at least the crew has a greater chance of survival.
Li Zhan even had another guess, maybe the flap was stuck due to icing. He knew very well the various models of the Y-8 series aircraft, until the batch of Y-8 used by Postal Airlines used many advanced flight technologies and equipment, but
That was ten years ago. The anti-icing system used on the plane was not foolproof.
Today's weather is very strange and abnormal. In a short time, from medium and high altitude to low altitude, the sudden change in temperature. Quick switching between hot and cold can easily cause the anti-icing system to fail. : :
Everyone stood up and looked north, staring at 8y1771, which explained the elevation angle drop. Obviously, the captain was not a false reputation, and he was a very courageous person. He knew that the best result was to stop on the runway.
Even if it hits, deliberately increase the elevation angle to achieve the purpose of slowing down as soon as possible, and at the same time, it cannot exceed the limited elevation angle, otherwise the aircraft will stall. Generally speaking, this angle cannot exceed fifteen degrees.
Destiny is in the hands of the captain.
"The speed is still too fast, three hundred and five!" Zhang Wei glanced at the speed test radar display, sighed slightly and shook his head.
Li Zhan said, "I hope that blocking the network can play some role."
But even he knew that it would be difficult to stop the nearly fifty-ton 8y1771.
Under normal circumstances, the gliding distance of the Y-8 landing has reached one thousand meters. At this time, the 8y1771, which has lost its main braking method, has to land on the 1,200-meter runway. Perhaps the gap of 200 meters will be taken away.
A key factor in the life of the crew.
8y1771 touched the ground, and the main landing gear landed on the runway. Li Zhan noticed that the touching position was quite forward at the north end of the runway, which means that the captain consciously tried to win more availability for himself.
Runway length.
"The landing speed is 260 kilometers!" said the duty commander loudly.
Li Zhan looked at 8y1771, whose front landing gear had not yet touched the ground, and suddenly had a bold idea. He snatched the mezzanine without time to communicate and called, "Putting away the landing gear! Captain! Putting away the landing gear!"
In just two seconds, the captain immediately understood the purpose of the tower. He did not think too much, and gritted his teeth and slammed the landing gear retracting rod. The speed of the landing gear retracting under the action of the gravity of the fuselage
It is much faster than normal. The rear abdomen has made close contact with the runway. The high-speed friction produces flames that can be seen by the naked eye. Then the nose of the machine lands from a few meters high, without a landing gear as a balance.
The plane leaned to one side, and the captain actually created a miracle that was not big or small, and he maintained the balance of the two wings.
8y1771 dragged the flames and stopped at a distance of more than 100 meters from the end of the runway. The fire truck ambulance sounded the sirens of the police rushed over in the heavy rain, but the greatest danger was lifted. Li Zhan looked at the tip of the right wing touchdown at the last moment.
Insert into the grass on the right side of the runway, the No. 4 engine touched the ground and the blades broke.
The plane looked very injured.
All crew members survived, not even a single bruise, which is the best news. After inspection, the goods in the warehouse were not damaged. Overall, this was implemented in an impossible situation.
A very successful forced landing.
It was only a hundred meters away. The fixed base of the blocking net had been pulled out by the plane. It can be seen how huge the kinetic energy the plane had after landing. People in the tower looked at each other. If the landing gear was not put away, the 8y1771 would definitely not be able to escape.
Destiny to rush to the bottom of the valley.
It is extremely extreme to put away the landing gear at critical moments and use the large-scale contact between the belly and the runway to increase friction in order to achieve the purpose of slowing down. I have never heard of any unit that will land without using the landing gear, only
The crew was anxious to get angry because of the landing gear that could not be put down normally.
However, if this extreme slowdown method is not adopted, 8y1771 will fall into many blocks at the bottom of a kilometer-deep valley, and may also ignite a large fire to cause secondary damage.
After Zhang Wei breathed a sigh of relief, he walked down the tower with Li Zhan and whispered, "Your bad idea may also harm the unit if you save the unit."
Li Zhan was very puzzled and frowned, "You see, even if the fixed base that blocks the net is pulled out, if you don't do this, the plane will definitely rush down."
"This choice is not difficult, but the crew may have to undergo repeated and long investigations by the insurance company, especially the captain." Zhang Wei said in a deep voice, "You forgot that they are local airlines, not our troops. The insurance company
They would not care about these things. They would be so cold-blooded that they thought the landing gear could be put down normally, but the crew did not use it, which caused serious damage to the aircraft, and they refused to pay compensation accordingly."
Li Zhan was very surprised, "Isn't it reasonable? All records can prove that the captain's choice was reasonable at that time, and the insurance company had no reason to refuse to pay."
After getting on the commuter bus to the scene, Zhang Wei said in a deep voice, "If the plane falls down the mountain, as long as the crew's operation is fine, human factors are ruled out, the insurance company will pay the bill as required, even if this happens, they will pay more money.
But in this situation, I am afraid that no matter how much the compensation is, the insurance company will not buy it easily.”
Some of Li Zhan’s ideas were refreshed, and he said in surprise, “Is this unreasonable? How does an insurance company do things like this?”
"Most of the time," Zhang Wei said helplessly, "But it depends on the specific situation. This plane is from Postal Airlines. Postal Airlines' family and Postal Airlines may not care about this little money. Maybe the insurance company will maintain the support of Postal Airlines.
The relationship will be compensated. However, no matter what, the crew will explain and investigate the unusual move of putting the landing gear after the main landing gear touches the ground. You said, is this a good thing or a bad thing for the crew.
”
Li Zhan was silent and said helplessly, "As long as people live, everything else is not important. Besides, the 8y1771 crew, especially the captain, is very powerful. They do more perfectly than I thought. The two wings remained behind the ground.
With balance, the plane taxied forward straight. If there was some deflection at that time, the plane would probably have results that no one would want to see after the plane rolled."
"Yes, the captain is very powerful." Zhang Wei admired him very much. There were not many pilots in the army who could do it.
Li Zhan said, "You report to the Chief of Staff in detail, and I will report too. If we can help the crew here, try our best to help."
"Okay, I understand."
That's all we can do, providing more parameter data and all voice communication between the tower of Zhongnan Station and the 8y1771 cargo flight. If possible, Li Zhan also hopes to issue a special feature of the location of Zhongnan Station.
A report proof that the captain took the most appropriate measures. Computer::/
These tasks must be completed as soon as possible, because the 8y1771 cargo flight must be taken away as soon as possible so that Li Zhan can carry out his exploratory flight.
He conducted a detailed inspection of the 8y1771 cargo flight in the rain.