There was a bit of embarrassment and embarrassment in the smile, because this question was purely an occupational disease of political cadres, and they subconsciously wanted to use their good language skills to ask.
It's not great, but it doesn't hurt.
A smile was revealed.
"Remember."
Zhou Hai could naturally see the slightly embarrassed smile on Zhang Ping's face, but didn't pay attention to it. He nodded seriously. The scene when the accident occurred six hours and a few minutes ago came to mind. He sorted out his words and then slowly gave a brief explanation about the No. 578 J- A complete description of the out-of-control situation of 15 fighter planes:
"Before the accident, Fighter No. 578 was on the northwest route of the base, about 500 meters away from the runway, with a visual altitude of about 130 meters. It lowered its nose and adjusted its flight attitude to prepare for landing. Then its nose suddenly rose sharply. It tilted up, changed its flight attitude and angle of attack, made a cobra-like over-stall flight maneuver, and lost control. After about two seconds, the out-of-control fighter No. 578 did not return to normal flight status, and then the pilot ejected to escape. Then, Fighter No. 578 quickly lowered its nose due to suspected unknown factors, returned to normal flight status, and flew towards the swimming pool of the base where we were."
Regarding the out-of-control situation of fighter No. 578, from the perspective of external visual observation, the entire process has gone through two important stages.
First, when adjusting its attitude to land, the fighter plane suddenly tilted up and lost control.
Second, after the pilot ejected to escape, the fighter jet suddenly lowered its nose and returned to level flight.
Two important flight stages reflect different body conditions.
"This information is very important, please note it down."
Zhang Ping seemed a little surprised when he heard Zhou Hai's description. He didn't expect it to be so detailed and complete. With a serious face, he turned his eyes to Colonel Luo An, who was sitting next to him, and gave instructions.
This is extremely valuable news that will play an important role and help in the investigation of the April 25 fighter plane crash.
Luo An nodded without saying a word, holding the pen in his right hand, and painted a black circle behind Zhou Hai's answer, marking it as important information.
"Also, Comrade Zhang, based on the changes in the out-of-control situation of fighter No. 578, I think it was an unconventional sudden tilt-up accident. Taking into account the body conditions at two different stages, as well as the problems left over from the history of the J-15 fighter, My preliminary guess is that the cause of the failure of fighter No. 578 is composed of a fly-by-wire system failure and a flight control system failure, of which the fly-by-wire system failure is the dominant factor, and there is some unknown and special major hidden danger."
Immediately afterwards, Zhou Hai, who was sitting at the conversation table, spoke out about his own opinions and speculations.
"What?"
Zhang Ping was stunned for a moment, his black pupils shrank suddenly, a little unbelievable, and his heart was shocked. He took a deep breath and asked: "Comrade Ling, are you saying that there is still something unknown in the telex system of the J-15 fighter? And special major hidden dangers?”
The slight change in the words contained a shocking meaning.
Shocking!
Deeply shocked!
As a senior officer in the naval aviation system, Zhang Ping, who is affiliated with the Political Department, is not a pilot, but he can still understand some aviation terminology.
He didn't understand or understand what 'unconventional attitude sudden upward accident' meant, but Zhang Ping understood this sentence - there was some unknown and special major hidden danger in the J-15 fighter's telex system.
What does this sentence mean?
The J-15 'Flying Shark' fighter aircraft telex system developed by Shen Hoy not only has problems, but also has big problems!
Colonel Luo An, who silently recorded the conversation, was also shocked by Zhou Hai's shocking conclusion, which was a bit incredible.
Because Zhou Hai's guess conclusion was really too shocking, shocking to a shocking degree.
If word 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 guess conclusion - the 4.25 crash is different from the J-15 flight accidents caused by historical issues in the past. Generally speaking, conventional attitude sudden changes The pitch-up accident was caused by the characteristics of the aerodynamic layout of the central lift body. After the nose sharply pitched up, it nosed down sharply and fell into a stall state. The entire situation was dominated by problems at the flight control level. The fly-by-wire system was the cause of the accident. need."
Zhou Hai looked at the incredible Zhang Ping and Luo An, two senior officers of Hainan Airlines. Their backs were as straight as pine trees and their expressions were calm. He nodded, his words were calm and natural, and he said slowly:
"However, the details of this accident are different. The fighter plane experienced a total of two different flight states, and the situation of 'after the pilot ejected and escaped, pressed down the nose of the aircraft and returned to normal flight state' is extremely abnormal. Based on this, I guess it is simply A failure of the flight control system will never cause the fighter aircraft to experience two extreme situations. Only the fly-by-wire system can do this. This reflects a situation from the side - the fly-by-wire system has unknown and special major hidden dangers. Of course, this is just me The speculation is just on paper and is not 100% certain. It is for reference only. The specific cause of the accident needs to be investigated before it can be confirmed."
At the end of the speech, the words were soft and calm, not too serious.
To say one thousand is to say ten thousand. All analyzes and conclusions are just guesses and not certain.
Just talk on paper.
"Comrade Ling, thank you very much for the information you gave. This will be of great help to our accident investigation team in finding the specific cause of the fighter plane crash. We will pay attention to it." After hearing Zhou Hai's words, Zhang Ping felt slightly embarrassed in his heart. Most of them He didn't understand the details. He stared at Zhou Hai in front of him with a serious look on his face and said seriously.
Luo An, with 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 stop it from being important.
After all, this was valuable information from a top Air Force pilot.
"My conclusion is not completely correct. I would like it to be helpful to you. However, I hope the J-15C will not have the same problem, especially the sudden tilt-up accident." Zhou Hai sighed and said slowly.
As we all know, the sudden attitude tilt-up accident that has spread throughout the Hainan Airlines and the Air Force is so famous that it has become the exclusive symbol of the J-15 series, a shining business card, and one of the factors that gave Shen Hoy a bad reputation internally.
Why?
Because this thing is like a woman's menstruation, which occurs frequently, suddenly and without any warning. It is the main culprit of many serious crashes of J-15 fighter jets.
The core reason for this accident is that Shen Hoy did not truly understand the noble aerodynamic pedigree inherited from Maozi - the central lifting body aerodynamic layout.
