Chapter 780: Sudden Upward Tilt Accident!

There was a little embarrassment and embarrassment in the smile, because this question was purely an occupational disease of political cadres, and they subconsciously wanted to ask through their best language means.

It's not great, but it doesn't hurt.

Laugh it off.

"Yes."

Zhou Hai could naturally see the slightly embarrassed smile on Zhang Ping's face, he didn't care, nodded seriously, and the picture of the accident six hours and minutes ago came to his mind, sorted out his words, and then slowly gave a complete description of the loss of control of the No. 578 J-15 fighter:

"Before the accident, the No. 578 fighter was on the northwest course of the base, about 500 meters away from the runway, and the visual altitude was about 130 meters, depressing the nose to adjust the flight attitude and preparing to land, and then the nose suddenly rose sharply, changed the flight attitude and angle of attack, made a cobra-like stall flight maneuver, lost control, and after about two seconds, the No. 578 fighter in a state of loss of control did not return to its normal flight state, and then the pilot ejected and escaped, and then, It is suspected that due to unknown factors, the No. 578 fighter plane quickly pressed down on the nose of the plane, resumed its normal flight state, and flew towards the pool of the base where we were. ”

Regarding the loss of control of the No. 578 fighter, from the perspective of external visual observation, the whole process has gone through two important stages.

First, when adjusting its attitude and preparing to land, the fighter suddenly leaned up and lost control.

Second, after the pilot ejected and escaped, the fighter suddenly pressed down on the nose of the plane and returned to level flight.

Two important flight phases, each reflecting different airframe conditions.

"It's important to write it down."

Hearing what Zhou Hai described, Zhang Ping looked a little surprised, he didn't expect it to be so detailed and complete, his face was serious, his eyes fell on Colonel Luo An, who was sitting next to him, and he instructed.

This is a piece of news of great value, which plays an important role and helps in the investigation of the crash of the 4.25 fighter.

Luo An nodded without saying a word, holding a pen in his right hand, and smeared a black circle behind the content of Zhou Hai's answer, marking it as important information.

"Also, Comrade Zhang, according to the change in the out-of-control situation of the No. 578 fighter, I think this is an unconventional attitude sudden uplift accident, combined with the condition of the airframe at two different stages, as well as the problems left over from the history of the J-15 fighter, I preliminarily guess that the cause of the failure of the No. 578 fighter is composed of the failure of the telex system and the failure of the flight control system, of which the failure of the telex system occupies the dominant factor, and there is some unknown and special major hidden danger."

Immediately afterwards, Zhou Hai, who was sitting at the talking table, expounded his views and guesses about himself.

"What?"

Zhang Ping was stunned for a moment, his black pupils shrank suddenly, he was a little unbelievable, his heart was shocked, and the whole person took a deep breath and asked: "Comrade Zero, are you saying that there is still some unknown and special major hidden danger in the telex system of the J-15 fighter?" ”

The words changed slightly, containing a sense of shock.

Shock!

Deeply shocked!

As a senior officer in the naval aviation system, although Zhang Ping, who is subordinate to the Political Department, is not a pilot, he can still understand some aviation terminology.

He didn't understand or understand what an 'unconventional attitude sudden uplift accident' was, but Zhang Ping could understand this sentence - the telex system of the J-15 fighter has some unknown and special major hidden danger.

What does this mean?

The J-15 'Flying Shark' fighter electro-transmission system developed by Shen Hoy is not only problematic, but also very problematic!

Colonel Luo An, who silently recorded the content of the conversation, was also shocked by Zhou Hai's shocking guess conclusion, which was a little incredible.

Because, Zhou Hai's guess conclusion is too shocking, shocking to the point of appalling.

If it spreads, I don't know what kind of turmoil it will cause.

"Yes, I thought about it carefully when I was in confinement, and finally came to this guessing conclusion - the 4.25 crash accident is different from the J-15 flight accident caused by the problems left over from history in the past, generally speaking, the conventional attitude sudden uplift accident is generated by the characteristics of the aerodynamic layout of the central lifting body, which is manifested in the sharp tilt of the nose after the sharp downturn into a stall state, the whole situation is dominated by the problem of the flight control level, and the fly-by-wire system is secondary."

Zhou Hai looked at the incredible Zhang Ping and Luo An, two senior officers of the HNA, his back was as straight as a cloud pine, his face was calm, he nodded, his words were calm and natural, and he said slowly:

"However, the details of this accident are different, the fighter experienced a total of two different flight states, and the situation of 'after the pilot ejected and escaped, the nose pressed down and returned to normal flight state' is extremely abnormal, according to this, I guess that a simple flight control system failure can never make the fighter appear in two extreme situations, only the telex system can do, which reflects a situation from the side - the telex system has unknown and special major hidden dangers. Of course, this is just my speculation, it is just on paper, not 100% certain, for reference only, and the specific cause of the accident needs to be investigated before it can be confirmed. ”

At the end of the sentence, the words were soft and calm, not too serious.

Say a thousand, say ten thousand, all the analysis and conclusion, just speculation, not certainty.

It's just talk on paper.

"Comrade Zero, thank you very much for the information you gave, this is an important help for our accident investigation team to find the specific cause of the crash of the fighter, and we will pay attention to it." After Zhang Ping heard Zhou Hai's words, he was slightly embarrassed in his heart, he didn't understand most of the details, his eyes stared at Zhou Hai in front of him, and his face still showed a serious look.

Luo An, who had a hint of confusion in his eyes, also nodded.

To be honest, although I didn't understand most of what Zhou Hai said, it didn't prevent this thing from being important.

After all, this is valuable information from a top Air Force pilot.

"My conclusion is not entirely correct, it would be good if it could help you, but I hope that the J-15C will not have the same problem, especially the sudden attitude uplift accident." Zhou Hai sighed and said slowly.

As we all know, the sudden uplift accident that has long been spread throughout the Navy and the Air Force can be described as a big name, and has become the exclusive symbol of the J-15 series, becoming a shining business card, and one of the factors that make Shen Hoy have a bad reputation within him.

Why?

Because, this thing is like a woman's menstrual affair, which often appears, extremely suddenly, without any warning, and is the culprit for many serious crashes of J-15 fighters.

And the core reason for the frequent occurrence of this accident is mainly that Shen Huoyi did not really understand the noble pneumatic bloodline inherited from Maozi - the pneumatic layout of the central lifting body.