The Cobra maneuver is not a mandatory aerobatic maneuver, and the troops can consider whether to train for this maneuver, or who will perform it and who will not.

There is controversy within the military about the actual combat effect of the Cobra maneuver, but the general view is that the more important significance of mastering the Cobra maneuver lies in mastering the superior flight technology.

Being able to fly a cobra shows that your technique has taken it to a higher level.

Naturally, the higher the flight technique, the better.

The requirement of the Falcon Brigade is to be full Cobra.

However, except for Nie Jianfeng and Tang Leilei, no one else has trained in this subject. There are no conditions for training if you want to open the J-7. Of course, there is no possibility of popularization of the ultra-low-altitude Cobra maneuver that Li Zhan flew out of the emergency state in the 4-1 actual battle. Even if Li Zhan is asked to do it again, he may not be able to fly out.

Nie Jianfeng and Tang Leilei completed all the aerobatic maneuvers after completing the SU-27SK modification in the second division, and the Cobra flew very skillfully. Naturally, the instructors were the two of them.

Of course, Li Zhan is going to fly solo. He left the army two years later than Nie Jianfeng, but his flying hours surpassed Nie Jianfeng, which shows how brutal this person's flying experience is.

At 14 o'clock in the afternoon, the No. 01 SU-27SK heavy twin-engine and double-tail air superiority fighter with double color painting took off. The front half of the desert paint and the second half of the gray low-visibility paint look like a big rooster with bright head hair and a high head.

Li Zhan did not have anything on it, and half of the fuel in the plane was also used, and the fighter was in the best state for maneuvering. After a few all-field flights, the tower gave the order to start training.

The so-called Cobra maneuver, simply put, is the fighter plane level flight and then suddenly and quickly pull up the nose elevation angle between 110 and 120 degrees, forming a short nose back butt forward level flight state, in this state, the speed of the fighter will be instantly reduced to close to zero, from a distance the fighter is like a cliff to restrain the horse. Then the push rod press head returns to level flight.

The main implementation conditions are altitude and speed, which are generally required to be implemented at an altitude of 3,000 to 11,000 kilometers, and the level flight entry speed is between 300 and 400 kilometers per hour. Cobra maneuvers at an altitude of 1,000 meters and below require rigorous training.

The last time Li Zhan accidentally hit an ultra-low altitude of more than ten meters, he made a suspected cobra maneuver, and he was still driving, which can only be called a miracle. Theoretically, it is not true.

The specific driving essentials are very simple to express.

The longitudinal fly-by-wire of the SU-27SK fighter has two modes in the air, namely "flight" and "direct chain", the former mode is actually automatic trim mode, and the latter requires manual trim.

Anyone who has ever flown the SU-27 knows that if the direct chain mode is used, the attitude of the fighter is very difficult to control, especially the trim problem. The mid-air disintegration that occurred during the development was due to the fact that in the case of longitudinal control and the use of mechanical control system, the pilot's pressure rod and pull rod were very easy to cause the aircraft to be overloaded and instantly burst into comminuted fractures, and it was later installed that longitudinal fly-by-wire solved this catastrophic problem.

To maintain the specified watch speed and level flight, the pilot manually converts the "flight" mode to the "direct chain" mode, that is, the fly-by-wire flight control is completely controlled by manual control, and then the angle of attack limiter is disconnected, and the control stick is pulled to the rear limit position between 0.2 and 0.3 seconds, so that the nose of the aircraft can be raised to 110 degrees or 120 degrees in a short time, and the angle of attack of the aircraft is about 90 degrees. When the nose of the aircraft is downward, the push rod is moved to a neutral position to restore the aircraft to level flight, and the "flight" mode and angle of attack limiter are turned on to resume the normal operation of the fly-by-wire system.

To sum it up: level flight, broken flight control angle of attack, pull rod, pressure lever, and connect flight control angle of attack.

The whole theory is also very easy to understand.

It is generally believed that the tactical significance of this maneuver is to enable the aircraft to reduce its speed to a minimum in a very short time, and it is not to use the entire lift surface of the aircraft as a huge speed brake to achieve the purpose of rapid deceleration!

Swapping positions with the enemy in the rear hemisphere was achieved by such maneuvers. When you are being pursued, the pursuing enemy will rush ahead of you, and the superior in the tactical position will change hands.

But there is an opinion that doing such maneuvers in air combat will turn oneself into a living target. This view is also well-founded. Because in this state of action, the fighter has almost no speed to speak of, and without speed, it has no energy.

Isn't it just a live target?

In fact, there are no ineffective or wrong tactical moves, only the use of the wrong pilot.

Li Zhan is a staunch supporter of the speed tiebreaker, and he doesn't feel safe if he doesn't put himself in a state where he is as close to the limit as possible. His view of cobra maneuvering is based on this theory, so it is difficult to define whether he is a supporter of the cobra's usefulness theory or a supporter of the cobra's uselessness theory.

From a macro point of view, no matter what fighting moves or combat tactics you use, as long as you are the last one to survive, you are the king of the sky.

Li Zhan once again took the route through the field, but the route was a training altitude of 3,000 meters. The airspeed is maintained at an exact 425 kilometers per hour, and it enters the air over the station at this speed.

"I'm here I go!"

After reporting the action password, Li Zhan quickly disconnected the fly-by-wire flight controller and the angle of attack limiter, and pulled the lever backwards to the end almost at the same time. The No. 01 SU-27SK heavy twin-engine double-tail air control fighter in the state of level flight is like a wild horse that has been pulled tightly on the reins, and suddenly raises its head and points straight to the sky, under the action of inertia and forward kinetic energy, the tail continues to move forward, and the angle of nose tilt soon reaches 120 degrees.

Not as skilled as a novice.

Then it stalled.

The dual-color No. 01 SU-27SK heavy twin-engine, double-tail, double-tail air superiority fighter tumbled and fell.

"Toot Toot ......"

The continuous sound of sirens filled the cockpit, and without Li Zhan reporting it, the tower had already heard these sirens from the radio that was on the phone.

The risk of training a Cobra maneuver is mainly reflected in the stall, and the reason why this flight maneuver is considered a world-class maneuver is precisely because of the high risk. The whole process requires the pilot's maneuvering movements and timing to be accurate to within 0.5 seconds. On the other hand, it is precisely because of the high difficulty that it is considered impossible to popularize, and if it cannot be popularized, it naturally loses its tactical significance.

"I'm stalling! Turn on the flight controller! ”

Li Zhan was calm and quickly reconnected the fly-by-wire flight controller and angle of attack limiter. He then found that the angle of attack limiter was on, but the fly-by-wire flight controller did not respond.

"The fly-by-wire flight controller is out of order!"

Li Zhan quickly reported, and at the same time constantly gave commands to the fighter through the joystick, the fighter responded, but the reaction was extremely weak, and it seemed that an invisible force was dragging it to maintain the current state of loss of control.

"Turn on the flight controller again!" Li Zhan repeated the operation again.

Still no response.

The common problem of the early Flanker series fighters was not the so-called hypochondriasis, but their extremely complex complex control system. As mentioned above, the machine uses a combination of longitudinal fly-by-wire and transverse mechanical transmission as the control system, and the structure is not only huge but also complex. Once the longitudinal fly-by-wire flight control fails, almost no one can keep the fighter in level flight, and the fighter will fly in a wavy line forward, and the nose of the plane will tilt up and dive, and it will stall at the slightest mistake.

Flying Cobra maneuvers, stalling and tailspinning, is not worth the fuss. Tail spin is a must-have skill for every pilot, just like blind cockpit maneuvers. Air Force pilots also have to write down dozens or hundreds of manipulation actions of the danger handling plan, don't think that the rod fee is so easy to get.

Therefore, after knowing that the Shuangpinse No. 01 SU-27SK heavy twin-engine double-tail supremacy fighter stalled, Nie Jianfeng, who served as the commander of the tower, was not very worried. The SU-27SK is, of course, much easier to modify than the J-7.

But Li Zhan reported that the flight control failed, which was very fatal. The SU-27SK did not have a mechanical backup control system, and the failure of the longitudinal fly-by-wire flight control system meant that the pilot lost control of the fighter. Not to mention that at this time it is in a state of stalling and tumbling and falling, even if it is a high-altitude level flight state, this is a very fatal failure.

Maybe it's not a mechanical failure, maybe it's just because the fighter is in a certain state at a certain node, it's out of order, like some lighters, obviously there is a lot of oil just can't hit, but of course it's ready to give up when it fights, and it's "free".

Modern fighters are the crystallization of huge and complex systems engineering, and many failures are difficult to explain from a technical perspective. For example, once No. 037 J-7EGG, when he was still called J-7E, the nose landing gear was stuck, and the maintenance inspection after the forced landing did not find damage. This is difficult to explain from a conventional point of view.

At this time, the state of the double-color No. 01 SU-27SK heavy twin-engine double-vertical tail supremacy fighter is that the wings are rolling, swaying, and dancing, and the fighter does not enter the tail spin state, but it is like a paratrooper that fails to open a parachute......

Li Zhan had no speed at all.

When he pulled up the nose of the Cobra, the airspeed dropped at a speed rate of about 180 kilometers per second, which means that when the fighter's butt moved forward, Li Zhan basically lost speed.

But he still has height.

The Cobra maneuvered to a minimum training safety altitude of 3,000 meters, and Li Zhan still needed time.

He kept repeating the operation of turning on the fly-by-wire flight controller, and at the same time constantly gave action commands to the fighter plane through the joystick, trying to regain control of the loose Mustang in his hands.

"Dongyi, prepare to skydive, you don't have much altitude!" Nie Jianfeng decisively gave the order.

The double-color No. 01 SU-27SK heavy twin-engine double-tail air superiority fighter has only a few hundred lives left, and a real warrior should die on the battlefield, and it is also glorious for him to be killed by Li Zhan at the training ground.

Li Zhan said, "I'm still more than 1,000 meters, don't worry about a lot of time!" ”

He is a man who has done ultra-low altitude of more than 10 meters, he is a man who can complete 301 actions in 70 seconds, and the height of more than 1,000 meters is enough for him to make a ruthless contribution to building a strong people's air force and protecting the property of the army.

"Don't do it! You know Su Liangqi's flaws! Nie Jianfeng reminded solemnly.

Li Zhan replied in a deep voice, "Understand, if the minimum parachute jump height can't save the situation, I will parachute, is the brigade commander on the side?" ”

"The brigade commander is not here, I am the commissar." Bao Guanhua picked up the microphone and said.

Bao Guanhua is the deputy commander, and leaders at or above the deputy regimental level must be present for high-risk movements. The team of the 101st Brigade is not yet complete, and there are relatively few leaders at the regimental level, which is simply not enough. So this old political commissar who has rejuvenated his second spring personally went into battle and sat on the tower.

Li Zhan said, "Report to the political commissar, I request to turn off the car and start again, over!" ”

What kind of meme is this?

Bao Guanhua didn't understand.

More than 1,000 meters high is also about ten seconds.

Nie Jianfeng didn't bother to explain to Bao Guanhua, he hurriedly said to Li Zhan, "Dongyu! Turning off the car and changing out is not universal! You have to be careful! ”

Li Zhan made up his mind, "There's no other way, I'll give it a try." ”

Unless there is an engine failure, such as a fire, it is easy not to turn off the engine in the air. Because driving in the air is not successful every time. Fighters have APUs, auxiliary power systems, also known as auxiliary power systems, and their main role is to start engines with their own electricity, especially in the air. The fighter is on the ground, and the ground power supply vehicle is usually used to help the engine start, because this is the most reliable, and at the same time save the fighter's own power supply energy.

Why can't driving in the air ensure success every time?

Whether it is a turbojet aero engine or a turbofan aero engine, it needs to burn a lot of air when working, just look at the air intake of the fighter that is not much smaller than the fuselage. This requires that the fighter must be at a specified altitude and in the appropriate windward direction before it can drive in the air, in other words, the attitude of the fighter must meet the requirements.

The current posture of the dual-color No. 01 SU-27SK heavy twin-engine double-tail air supremacy fighter is obviously completely unsatisfactory.

The reason why Li Zhan had to apply to the tower was precisely because the attitude of the fighter did not meet the requirements for driving in the air, and he could not take the initiative to turn off the car under such circumstances.

Power is everything, and a fighter that loses power is a brick.

If the car cannot be restarted after taking the initiative to shut down, Li Zhan has to admit responsibility.

The real reason why Nie Jianfeng was so excited to persuade him to be cautious was this. Originally, there was nothing to do with yourself, as long as the operation action met the specifications, the plane fell and fell, anyway, it didn't take long to live, but you are very important, the pillars of the 101st Brigade can't have anything at all. Now you have to try a new way to deal with it if you don't comply with the regulations, isn't it your own death?

The group of people in charge of the investigation of the military region's air force don't care how many first-class merits you have, whoever is responsible will be held responsible, and there is no difference in the face of the matter.

"Lao Li! No need! Nie Jianfeng violated the radio communication regulations and called Mingyu.

Li Zhan's attention is on the state of the fighter, he is experiencing the attitude change of the double-color No. 01 SU-27SK heavy twin-engine double-vertical tail air superiority fighter, three or five overloads are simply a pre-dinner snack for him, so his consciousness is very emotional and his heartbeat is very stable, and the nerve endings in his body seem to be connected with the double-color No. 01 SU-27SK heavy twin-engine double-tail air superiority fighter Loving her love, dreaming of her dreams, sad about her sadness, no wind and rain, no ups and downs, no ups and downs, no need to go, holding hands, and going together in the next life......

Testing whether shutting down and driving in the air will help change the state of stalling or stalling tailspin is an extremely rare opportunity at the moment, and Li Zhan will never let it go. If you don't want to risk flying any fighter jets, it's better to go and drive a civil aviation wave.

He seized the pattern and quickly turned off two shots, which he quickly fired at a moment before the fighter was about to enter an extremely brief period of suitable stance. He accurately calculated the delay time, and accurately calculated the time for the fighter to change its attitude to an appropriate state.

The two AL-31F aero engines were restarted shortly after they were shut down, and Li Zhan made an astonishing move - driving the afterburner throttle stick to the end.

The double-color No. 01 SU-27SK heavy twin-engine double-tail air superiority fighter that fell down like a headless fly suddenly accelerated and dived towards the ground.

Li Zhan once again turned on the flight control system, and this time he got green.

"Fuck, after landing, there was almost no problem, and I immediately burned your broken Su Liangqi! Control tower! I'm normal! Li Zhan scolded angrily, and pulled the rod to the height.

The double-color No. 01 SU-27SK heavy twin-engine double-tail air superiority fighter was like a very docile little sheep obediently pulled up and resumed level flight, at this time it was still three or four hundred meters away from the ground.

Everyone in the tower breathed a sigh of relief.

Li Zhan asked, "Tower, I have checked it repeatedly, and there is no problem with each system, can I continue to train, or do I land and check first?" Complete. ”

Even Nie Jianfeng was speechless, you still want to continue training after that.

"Dongyi, I order you to return immediately, over!"

"Received by the cave, return immediately, complete ......"