This is really a waste of time. The engine stops during a stall and tail spin, which is a nightmare for a single-engine fighter. If there is power, there is hope for recovery. Without power, the only way to fly is parachuting.
"Try to start the flight once!"
no response.
"Try to start the aeroengine a second time!"
"Try to start the aeroengine for the third time!"
…
"Try to start the aviation engine... Is our fate, old man, over?"
You can clearly see the mountains spinning towards you. What's even more frightening is that it is difficult for the pilot to accurately grasp the altitude of the aircraft in the stall and tail spin state. The sensor instrument of the aircraft will produce a large amount of noise when the aircraft is descending at a high rate.
Big delay.
Life or death is a matter of seconds.
Li Zhan will not give up and will not pull the ejection handle until the end.
He tried to drive, tried to drive, and tried to drive again. Without power, everything was in vain, but there was not much time left for him.
"Bring it on, old man!" Li Zhan yelled and tried to drive again.
The engine tachometer needle moved.
Li Zhan clearly felt that the fighter plane had the hope of breaking free. He was overjoyed and pushed the throttle lever all the way. Any attempt at this time would be considered exploration, or it could be said that it was a dead horse being treated as a living horse.
No. 037 J-7e actually accelerated and dived downwards. However, the flight attitude stabilized, and Li Zhan felt the feeling of regaining control of everything from the feedback of the joystick!
Amidst the roaring sound, the auxiliary fuel tank under the fighter plane almost pulled up against the top of the mountain, drawing a beautiful and thrilling "U"-shaped line in the air like a roller coaster. Li Zhan confirmed that the fighter plane was in level flight.
After the main system became normal, I breathed a sigh of relief.
"Lan Zhi, I've corrected, I've corrected. I'm over the mountainous area, ready to climb. Your radar will help me confirm the position. It's over." Li Zhan reported.
There was no reply from Lanzhi.
Li Zhan reported again, "The orchid refers to the orchid. I am the third turn of the cave. I corrected it. Prepare to climb over the mountainous area. You have to determine the altitude and course. It's over."
Lan Zhi still had no reply.
Li Zhan called again, "Lanzhi? Dong Sanguai is calling, Dong Sanguai is calling, it's over."
Still no reply.
Li Zhan quickly recalled the position before stalling, and quickly determined the current approximate position in the sky above Guangyuan. Strong electromagnetic interference had occurred here many times during the 2008 earthquake, and the weather at that time was also very bad.
At this time, Li Zhan was flying under the clouds. The visibility was very poor. The surroundings were gray, with fog and low cumulonimbus clouds that contained infinite dangers. Flying in a direction of about 300 degrees should be the Longnan area. The terrain and weather there
It will be more complicated.
The most critical thing is that Li Zhan does not know the civil aviation routes and route distribution in his area, so it would be dangerous to make a hasty choice.
"Central Sichuan Air Traffic Control, Beikudong Sanguai call, Central Sichuan Air Traffic Control, Beikudong Sanguai call, completed." Li Zhan adjusted the communication frequency to the channel of the Air Force Air Traffic Control Duty Room of the Southwest Military Region and called.
Since it was a cross-military flight, Li Zhan broke away from the tower command after taking off and contacted Lan Zhi directly, and the military region command post coordinated the route. Li Zhan was not sure whether it was due to terrain effects or electromagnetic interference that interrupted his contact with Lan Zhi. In this case,
In this case, he will adopt a backup communication plan to call the air traffic control duty room of the Southwest Military Region Air Force.
However, there was still no reply.
At this time, Li Zhan was certain that he lost contact with the communication channel due to terrain or electromagnetic influence. It seems that electromagnetic interference factors can be eliminated when the instruments are normal. However, as we all know, atmospheric radio waves are very complex and there are many factors that affect communication.
Electromagnetic interference cannot be simply eliminated.
Without too much hesitation, Li Zhan quickly made the decision to climb higher. Only by climbing higher can he get rid of the impact of mountainous terrain on communication.
He remembered that there were several air routes crossing the airspace where he was located, most of which were concentrated in the airspace layer between 8,000 meters and 12,000 meters. However, he could not remember the specific air routes clearly. Going up to altitude meant invading the airspace passed by civil aviation routes.
layer.
The Air Force has priority in the use of airspace, just as the military has the highest priority in the use of ground roads.
The problem is that Li Zhan is in a state of communication loss at this time. He has no way to contact the command post, and there is no way to ask the civil aviation aircraft in the airspace to avoid it. Having said that, if he can contact the ground command post, he can also get guidance to avoid it.
Civil aviation routes.
This risk must be taken, otherwise Li Zhan will be a headless fly and the only option is to make an emergency landing.
The visibility was very poor. Li Zhan climbed up cautiously, wishing he could turn his eyes into radar, so he turned on the radar. The radar started quickly, and the search action was very fast, giving people a clean and neat feeling. Li Zhan finally gained some confidence.
, his eyes kept looking forward at the radar screen. The entire cockpit has been completely changed. There is a large screen display in the middle, two small screens on the left and right, other instruments and buttons have also been redesigned, and even Li
Zhan suspected that Cheng Loma had transplanted the entire cockpit of Xiaolong.
But Li Zhan had no time to admire the new cockpit at this time, because the radar detected a total of seven targets flying in various directions in front of him. Judging from the reflected signals and parameters, it was either a large civil aviation aircraft or a large Air Force aircraft. He quickly determined the location of these targets.
After checking the altitude and heading speed, Li Zhan immediately had his own planned route in his mind.
He adjusted the heading altitude to carefully enter the airspace layer where the civil aviation route was located, and at the same time adjusted the communication frequency to the Lanzhi channel and kept calling.
The weather was so bad and the electromagnetic interference was so loud that it was difficult to hear the instructions clearly even if there was an echo.
Li Zhan could also choose to use the international common communication frequency to conduct a blind transmission and ask the aircraft in front to avoid him. However, since radar detection has been used to open the path, Li Zhan does not need to disrupt the civil aviation flight plan.
He carefully and sneakily passed through the ascending altitude between several commercial airliners. Many passengers on those flights saw a fighter jet with a light gray paint job flying past them and flying higher until it was no longer visible.
.
It is estimated that the Civil Aviation Control Center is already in chaos by now. ???
what's the situation?
Why is there a signal without a serial number?
After reaching an altitude of 13,000 meters, Li Zhan breathed a sigh of relief when he resumed level flight. At this time, communication with Lan Zhi was re-established.
Lan Zhi also kept calling Li Zhan, and he breathed an even greater sigh of relief after reestablishing contact.
"Dong Sangui, I see you, adjust the heading to 300, maintain the altitude, and it's over." Lanzhi gave the guidance instruction.
Li Zhan repeated the instruction and asked for instructions, "Lan Zhi, can I lower the cruising altitude? I'm afraid there is not enough fuel. Over."
"Keep the height on the three turns of the hole, over."
"clear."
Obviously, lowering the altitude would intrude into the airspace of civil aviation, so Lanzhi rejected Li Zhan's request.
There is enough fuel, and Li Zhan has all three auxiliary fuel tanks. He did not release them before he suffered a loss, otherwise he would have prepared for the landing. But Li Zhan wanted to save some fuel for a boost when he returned to Beiku, but he didn't boost for a long time.
It went supersonic, and I felt uncomfortable all over and couldn't sleep or eat well.
What's the difference between flying a fighter jet and not going supersonic?
Only now did Li Zhan have the mind to recall the strong airflow he had just encountered. He judged that he had just entered the space where hot and cold air masses met. The rapid and strong side airflow should have come sideways from top to bottom, overturning the fighter jet in an instant.
The state of the wingtip stall lifting body was destroyed, and the fighter jet quickly entered a tail spin. If it were a su-27, it would definitely not have such a big reaction. Although the J-7egg is a modified version of the J-7, her double delta wing aerodynamics
The layout is the same as several other models, and the lifting body is also the same.
Another reason is that the J=7egg is a light fighter after all and has no advantage in terms of weight. Under the same strong airflow, if it is a civil aviation twin-engine mid-to-long-range passenger aircraft, it will probably be a strong turbulence.
Li Zhan recalled the disposal process and found an interesting point.
After being unable to recover, the aircraft recovered from the spin after the engine was stopped and restarted.
Is it conceivable that in the extreme situation where the tail spin cannot be rectified, the pilot can take the initiative to turn off the car and drive the aircraft out of the tail spin?
This approach is extreme, and it is unclear whether it is a special case or is widespread.
Li Zhan secretly made a note to see if he could conduct an experiment in the future. With the flying data, all the situations at that time were based on facts.
After flying at cruising speed for more than an hour, Lan Zhi asked Li Zhan to descend to an altitude of 3,000, and then handed over the command to the Beikut Tower. At this time, Li Zhan had entered the desert in the basin and saw the familiar Uulun Lake and
In the National Forest Reserve on the north side of the lake, we can also see the short runway of Nankuchang Station.
Feeling like he was home, Li Zhan was in a good mood. He asked Nie Jianfeng, who was on duty at the tower today, for instructions, "Tower, let me hit supersonic speed to test the high-speed performance of the fighter jet after the overhaul. Over."
Nie Jianfeng smiled and said, "Three turns in the hole. Pay attention to the fuel remaining. You can adjust it appropriately. It's over."
"Understood, done."
Li Zhan threw the three empty auxiliary fuel tanks in the deserted desert, and then turned the throttle lever to the bottom and turned on the afterburner. The engine nozzle of No. 037 J-7e spurted out hot tail flames. It was very bright at this time in the clear sky and broad daylight.
Eye-catching.
The weather in the Beiku area is very good today. The snow has melted to an extent, and the ground temperature is between two and three degrees. It is a quite comfortable winter day.
The fighter jet quickly broke through the sound barrier. Li Zhan was counting the time silently, and the time it took to accelerate to break the sound barrier was shortened a lot. This shows that the thrust of the Singapore Airlines engine that Lockheed Martin replaced for No. 037 J-7egg has significantly increased, and the thrust is heavier.
It's bigger than that. Could it be rd93? It can't fit that thing, can it?
It's probably some improved version developed by Lockheed Martin R&D.
Could it be related to the skills that senior sister brought back last year when she made an alternate landing at Beikuchang Station?
The airspeed quickly approached Mach 1.5. It would be difficult to increase the airspeed in the air of 3,000 meters. Li Zhan pulled the lever to climb, still at full throttle. At this time, the empty weight of the fighter jet reached its optimal state. As it climbed,
Under the circumstances, the airspeed is still increasing.
In terms of acceleration capabilities, the J-7 considers itself second and no one dares to claim first, let alone the J-7egg. Li Zhan fully experienced the thrill of supersonic flight and made a major modification to the spare No. 037
I am very satisfied with the condition of the machine. From now on, it is quite good to look at her brand from time to time. It is really vulgar whether the lever is charged or not.
It's just that every time she goes on a date with Unit 037, something goes wrong. Today, she encountered a strong turbulence. Others bumped a few times when encountering strong turbulence. Unit 037 stalled directly and entered a tail spin and was about to hit a mountain. She just couldn't think of it.
That’s it.
Li Zhan had already discovered that it was not that he had bad luck, but that Unit 037 had a bad luck constitution.
After passing the last landing navigation point, Li Zhan asked the tower for instructions, "Tower, I will conduct a low-altitude and high-speed penetration. The course remains unchanged. It's over."
"Okay, pay attention to the attitude of the aircraft, that's it." Nie Jianfeng agreed readily.
This is the golden partner. If someone else takes command from the tower, he will definitely look ahead and take precautions.
Li Zhan turned off the afterburner but held off the throttle, and instead directly pressed the stick and dived down to altitude. With the airspeed maintained at Mach 1.5, the No. 037 J-7egg quickly gained huge energy in the dive state, and the airspeed was very fast.
Climbing up to Mach 2.
Li Zhan stared at the ground. Below is a familiar small town. It is the nearest residential area to Beikuchang Station, thirty kilometers away, and its name is Sansanli Town. This town is also an important landmark of this training airspace, with a newly built
The two-lane first-class highway runs from south to north along the flat desert through the town to the Beiku Mountain Scenic Area. The main buildings are distributed with the new highway as the central axis, and the target characteristics are very obvious.
At an altitude of 200 meters, Li Zhan stopped the fuel and pulled up. The fighter jet flew over the town at supersonic speed. When turning left, Li Zhan saw many people running out of the town and looking at him and waving wildly. The people were very excited.
Such enthusiasm, Li Zhan raised his right hand wearing a white glove in salute, regardless of whether the people on the ground could see it or not.
Li Zhan was very familiar with the terrain here. After informing the tower, he drove the No. 037 J-7egg into the Beiku Mountains. After soaring in the mountains for a while, he rolled directly across the mountains and came out. The entire aircraft
It hit the three-turn route.
The duty officer at Beikku Tower suddenly saw a fighter plane being thrown out from the Beikku Mountains due north. Then it turned around and aimed directly at the runway like a wild boy. The landing gear tires had not yet touched down.
The parachute was released, and the parachute was dragged in the air. In the end, it only reached the speed standard for leaving the runway after gliding for more than 400 meters.
Captain Falcon is back, and it's that familiar smell.
"Dong Sanguai, you go directly to the maintenance shop. The superiors require a comprehensive inspection of the aircraft and the transfer of flight parameters." Nie Jianfeng instructed Li Zhan.
Obviously, the report from Lanzhi has come. The stall and tail spin communication has been interrupted. These are all things that need to be checked. Check the aircraft, check the pilot, check the ground radar station and navigation station. No one is missing, it is just a normal procedure.
"Dong Sanguai understands."
Li Zhan smiled helplessly before leaving the aircraft factory and then entering the maintenance shop. When will the ill-fated No. 037 J-7egg become a normal aircraft?
The headache that gave him was still to come. At this moment, two Great Wall pickup trucks rushed out of Sanli Town, and the enthusiastic people were rushing to Beikuchang Station. There was a chicken on the left and a duck on the right.
Understand the fish and water conditions of the military and civilians...