Chapter 527: The era of seeing airplanes as more important than life has passed
"My approach is more extreme and not very universal, but so far I know it works."
Li Zhan first gave the two bigwigs a preventive shot, and then gestured with his hand and said, "Su Liangqi's longitudinal axis fly-by-wire flight control system is actually quite reliable, but Su Liangqi's horizontal transmission system uses a mechanical transmission system, which makes the whole system very complex and cumbersome. If there is no problem, then there is a big problem. ”
"I encountered a similar failure when I was working in Beiku, the longitudinal fly-by-wire system suddenly failed during level flight, and the automatic trim failed. In this case, it is difficult for the pilot to rely on his own strength to trim the fighter, and the nose of the aircraft becomes extremely sensitive, and the nose of the lever will pitch at a large angle if it is gently pulled back and forth, and it will stall if it is not careful. But I had the height and the time to do it. If such a failure occurs during the take-off and landing phases, the results are often catastrophic. This was the case with the 'Trinity' accident. ”
"My approach is to push the throttle stick to the end in the shortest possible time when encountering this type of failure, so that the engine can quickly reach the maximum thrust, at this time, don't rush to operate the lever, and when the speed comes up, disconnect the angle of attack limiter and change to full manual driving mode......"
"Wait." Lao Chen interrupted Li Zhan's words, "I can understand how far the throttle lever obtains the speed height, what is the purpose of disconnecting the angle of attack limiter?" Besides, if the longitudinal fly-by-wire flight control fails, does it make sense to change to full manual driving mode? ”
Li Zhan replied, "The longitudinal fly-by-wire flight control failed, but the transverse mechanical transmission system did not fail, and the change to the full manual driving mode is to let the transverse mechanical transmission device out of the automatic mode, which is very critical to obtain more disposal time." The angle of attack limiter exists to limit the pitch angle beyond the envelope, but the significance of this device is also based on the fact that the drivetrain is normal to work. ”
"After the longitudinal fly-by-wire system fails, the angle of attack limiter cannot perceive this change, so the fighter will divide the angle of attack limiter when the nose swings up and down at a large pitch angle, and the command transmitted to the flaps after the angle limiter intervenes will conflict with the pilot's command, which is very fatal."
Old Chen Tou and Zhong Ming glanced at each other, and after thinking about it carefully, they found that this was indeed the case, but the problem was that the method that Li Zhan talked about was too complicated. However, Li Zhan also said in advance that his method is not very popular.
"What should I do after I have the fighter under control? In the case of the failure of the longitudinal fly-by-wire system, how to rely on the normal transverse mechanical transmission to drive the aircraft back? Zhong Ming asked bluntly.
Li Zhan shook his head slightly, "Normally, it's basically impossible, Su Liangqi has no mechanical backup, and the manual clearly points out that the correct way to deal with flight control failure is to parachute." ”
When a look of disappointment appeared on Zhong Ming's face, Li Zhan changed his words and said, "But it's not completely impossible. Based on what I just said that the maneuvering is not enough to solve the problem of the nose pitch sensitivity of the aircraft, my method is to use the relative luggage generated by the speed brake and flaps on the back of the aircraft to counteract the pitch force of the nose. ”
Zhong Ming's eyes lit up suddenly, and he hurriedly asked, "Are there successful cases?" ”
Li Zhan nodded slightly, "Once." ”
"Once, ah......" Zhong Ming was slightly disappointed.
In the case of a failure of the longitudinal fly-by-wire system, the position relationship between the airbrake and the flaps on the back of the aircraft is used to "clamp" the nose of the aircraft, which is equivalent to giving the nose a limiter, in which case the pilot can slightly push and pull the lever to achieve the problem of controlling the nose direction.
Li Zhan said, "The steering and descending altitude can be done by flaps and tail rudders, and the pilot can still control the tilt of the fuselage, which means that even if there is no longitudinal fly-by-wire system, he can still do some maneuvers." The biggest problem is that the nose pitches up and down violently, and if the nose suddenly rises at a large angle at high speed, it is like entering a Cobra maneuver at a very high speed, and the fighter will be broken alive and disintegrate in the air. As long as the nose is restricted, the handling of the danger is equivalent to half the success. ”
"I don't think the success of an air haul is necessarily based on a safe landing. In the Qikong 'Trinity' accident, the pilot chose to make a forced landing in order to keep the plane, and I think what needs to be solved more is everyone's perception. It is true that the troops lack aircraft, but there is a shortage of personnel, and pilots are a more valuable asset than aircraft. As long as the plane flies in the sky, it cannot be safe forever, and there is always the possibility of problems. As long as everyone's mindset changes, and they see themselves as more important than airplanes, so that they can make the most ideal choice in case of danger. ”
If they had not chosen to make a forced landing, the two martyrs in the "March 1st" accident would have survived. A worn-out SU-27UBK is simply not worth it!
Old Chen Tou and Zhong Ming both fell into deep thought.
The renewal of the army's weapons and equipment has developed rapidly, but everyone's concept has not been updated. Gone are the days of tightening belts and squeezing resources out of your teeth to buy airplanes, there will be a shortage of planes in the future, but there will definitely be no more "eating the last meal but not the next meal", and everyone is full of confidence in the future, and in the near future, the renewal of the weapons and equipment of the troops will enter a normal state of change.
Many people have noticed a phenomenon that accidents involving our military's fighter planes are all major accidents, and they have never seen in news reports that accidents were caused by some minor malfunctions. This is because the minor glitches were dealt with directly by our military pilots and drove the plane back safely, and they did not appear in the newspaper at all.
Unless there is a fatal malfunction, the flight control fails, the double-engine air stop cannot be restarted, and other special dangers, our pilots have the ability to drive the plane back. In non-war periods, it may be difficult to compare our pilots with those of a strong enemy, but in dealing with dangerous situations in the air and mechanical breakdowns, the ability of our pilots is absolutely at the forefront of the world.
This in itself is a combat power.
Li Zhan's original intention was almost exposed, and he simply spread it out and said, "My method is not instructive, and I can even say that there are probably only a few pilots who can do it, and even if I try it again after I have already practiced it myself, I dare not guarantee that it will still succeed." Personally, I think it can only be seen as a helpless choice in extreme situations. ”
"The two leaders, in the final analysis, want to change their concepts, and completely change the concept of treating airplanes as more important than life. Mr. Chen, this concept of everyone in our Flying Shark Unit is quite serious. There are only a few J-15s used for training, and it is understandable that everyone attaches importance to the safety of the aircraft, but it is more important than their own lives, and I personally think it is very short-sighted. ”
Zhong Ming and Lao Chen Tou understood that on the surface, Li Zhan proposed a not too feasible way to deal with it - in fact, this is already a miracle, in fact, what Li Zhan really wants to express is "I hope that pilots can change the old concept of treating aircraft as more important than life".
None of them can deny Li Zhan's point of view, because it is very realistic.
In order for the troops to change their concepts, the leaders must first change their concepts, and Li Zhan hoped to take this opportunity to report this viewpoint to the higher authorities through Senior Colonel Zhong Ming from the Hai Si organ.
Li Zhan said, "Who can fly a fighter plane without falling on those two planes?" On the other hand, it's a very rare experience. Personally, I have encountered many dangerous situations, and after each treatment, I have a very deep feeling, and my understanding of flying has become more and more profound, which is a very valuable experience. ”
"What you say is idealistic, no one wants to be in danger, and never the best." Old Chen pointed at Li Zhan and said.
Zhong Ming smiled, "Lao Chen, your words are also idealistic. Objectively speaking, it is impossible not to be in danger, and it is not abnormal for frequent dangers to occur. ”
He looked at Li Zhan seriously again, "Xiao Li, I will think carefully about what you said to me today, and I will make some suggestions to my superiors when I have the opportunity." However, it seems that the method you are talking about can only be treated as a special case now. ”
"Yes, Chief." Li Zhan subconsciously sat up straight.
Zhong Ming looked at Lao Chen and said, "Lao Chen, that's all for this matter." Go back and ask Xiao Li to write a detailed disposal method and report to Hai Si. ”
"No problem." Old Chen nodded with satisfaction, it was naturally a good thing that his soldiers could show their faces in front of the head of the Sea Division.
Zhong Ming said to Li Zhan again, "Xiao Li, there is one more thing. The Propaganda Center of the General Political Department is doing a series of pioneers of the times, and every branch of the military and military region must select some officers and men who have performed well to dig deep into their deeds. I've heard that your first real landing hooked the second blocking cable seven times in a row, setting a record for the Flying Shark Force. ”
It seems that Zhong Ming has done his homework, and he is also very familiar with the training of the Flying Shark Force, otherwise he would never know the meaning of "hooking the second blocking cable".
Sure enough, Li Zhan secretly complained in his heart, and said embarrassedly, "Chief, I am a new comrade, there are many old pilots in our Flying Shark Force who are better than me, I suggest that this opportunity be given to more suitable people, I am not the best candidate." ”
Zhong Ming smiled and waved his hand, "I can't be the master of this, the interview team wants to interview you by name, Hai Si can't control the affairs of the General Administration, that is the higher-level leading organ." Okay, that's it, Lao Chen, I'm sorry you to take me on a tour. ”
"Okay, let's take the chief to inspect the work." Old Chen got up and said with a smile, pointed at Li Zhan, and hesitated, "Then let's have an interview, you can grasp the scale yourself." ”
Li Zhan watched the two chiefs leave, his mouth opening and opening, and he never knew how to refuse.
Since joining the army, what he has feared the most is interviews, which are of course due to his service experience in the air gunboat unit, as well as his own reasons. In the face of reporters and cameras, he always feels forced to act, which is very uncomfortable.
He dragged Zhang Xueyang over just to let him be a shield, but he didn't think about it, but he was resolved by Zhong Ming, the old slippery head, in a few words.
Alas.