Chapter XXXVII Causes of the Accident

Yang Weining didn't know how much shock his report had brought to Guan Yanran, and even because of the description of the Internet revolution in the United States in the report, he was even more determined to study in the United States. Pen Fun Pavilion wWw. biquge。 info

For Yang Weining, this is just a small prospect for the future development of China's computer industry in addition to doing his own work.

As for whether this report can be included in the internal reference, and how much impact it can have on China's computer industry after the internal reference, Yang Weining did not think so much.

Early the next morning, not long after Yang Weining got up, there was a knock on the door.

Yang Weining hurriedly went to open the door, and at the door stood Xiao Liu, who he had seen at the airport yesterday.

Xiao Liu looked tired, his eyes were bloodshot, it seemed that he hadn't slept all night, and when he saw Yang Weining, a smile appeared on his face and said, "Comrade Xiao Yang, Chief Engineer Tu asked you to hurry up." ”

Yang Weining said, "What's wrong?"

Xiao Liu said: "We have found out the cause of the plane accident." ”

Yang Weining was slightly stunned, and said suspiciously: "What, the cause of the accident was found so quickly?"

It is important to know that military aircraft accident investigation can be an extremely complex task, and there are often many causes of accidents. Among them, there are not only pilot control errors, aircraft mechanical failures, flight organization and command (air traffic control), but also service support problems, accidental injuries and other reasons.

Among these reasons are problems that belong to many different departments and professions.

For example, mechanical failures include design, manufacturing, repair and maintenance, involving pneumatics, strength, materials, electrical, electronic and other specialties.

And even if the fault point is found, there are often several reasons for the occurrence of a failure, including design defects, manufacturing defects, and use and maintenance problems.

Therefore, it is not a simple matter to find out the cause of the accident in a short period of time.

Xiao Liu didn't explain, and said with a smile: "You'll know when you go." ”

Yang Weining had no choice but to leave the hotel with Xiao Liu in confusion and hurriedly took a 212 jeep to the hangar of Factory 132.

As soon as I arrived at the door of the hangar, I saw Tu Kai and a group of aeronautical engineers gathered together, muttering to the drawings, and I didn't know what they were talking about.

Many people were tired, and bloodshot eyes could be seen, apparently investigating the cause of the accident overnight.

Seeing Yang Weining coming, the engineers of Factory 132, who had seen Yang Weining yesterday, suddenly parted ways.

Some people who had never seen him were a little surprised by the attitude of their colleagues towards this young man, and asked in a low voice about Yang Weining's origin.

After they learned the identity of this young man from their colleagues, they let out exclamations and looked at Yang Weining with the eyes of a legend.

"Xiao Yang, you're here!"

Tu Kai said with a smile: "The data in the black box has been read, excluding the pilot's control reason, you did a good job yesterday, the plane is in such a dangerous state, it is really not easy for you to fly it back safely." ”

Over the course of one night, Rongfei's engineers successfully reviewed the flight data before and after the Jianjiao-5 accident through the data recorded in the black box.

Especially after the plane entered the inverted flight tailspin, Yang Weining's series of textbook-like flight maneuvers shocked everyone.

The people present are all industry insiders, and they naturally understand how much that dangerous state tests a pilot, even if an experienced test pilot like Yu Hongfei is probably not able to do better than Yang Weining.

But this kid is just an ordinary college student who has just joined 611 schools, and he is not even a pilot, which has to be amazing.

In the eyes of many people, Yang Weining's performance can already be called a demon.

Yang Weining obviously also realized the reason for everyone's expressions, and said with a smile: "Butcher, I heard that the cause of the crash of the Annihilation Sect-5 has been found, how did it happen?"

Tu Kai turned around, took Yang Weining around the dismantled Jianjiao-5, pointed to a disassembled Vortex Spray-5 and said, "Look!"

When the engine was revealed in front of Yang Weining, Yang Weining couldn't help but gasp.

The fan blades of the turbojet-5 centrifugal compressor have a pool of blackened blood and feather debris, and many of the blade structures have been deformed, so it is a miracle that the engine can be successfully restarted in the air.

Tu Kai sighed: "The cause of yesterday's accident has been clear, it should be Jianjiao-5 During the flight, the engine air intake inhaled a bird of about 100 grams, and after the bird was sucked into the air intake, it first hit the kerosene conduit from the main fuel tank to the engine, causing the accessories to fall off, and the conduit leaked, and then hit the compressor fan blades, directly causing the engine to stop in the air. At the same time, part of the aluminum conduit for oil delivery also flew into the engine, was broken into pieces, passed through the combustion chamber, melted into countless aluminum droplets, and flew out of the sky from the tail vent of the aircraft. ”

Yang Weining was a little speechless, after listening to Tu Kai's accident analysis, even he himself admired himself for being stupid and bold.

It is important to know that in such a critical situation, the aircraft may trigger a fire in the air at any time and explode in the air.

Yang Weining was able to fly the plane back safely, in addition to his excellent psychology and technology, luck is also a big factor, no wonder these engineers of Factory 132 look at themselves with this kind of eyes.

Tu Kai couldn't help but sigh again and again: "Xiao Yang, you have made a great contribution this time!"

Of course, Yang Weining understood what Tu Kai meant, and the meritorious service in Tu Kai's mouth was not as simple as saving a plane.

You must know that the Jianjiao-5, as the main fighter training aircraft of the Chinese Air Force, has such a major event as the engine stopping in the air during flight, and once it crashes, it is bound to have an important impact on the flight training of the Chinese Air Force.

If the investigation of the accident takes too long, it could lead to a large-scale grounding.

Now that Yang Weining flew the plane back safely, Rong Fei only took one night to find out the reason, and the impact on the flight training of the Chinese Air Force was almost negligible.

The time saved here alone is worth a first-class effort.

Yang Weining muttered: "I didn't expect it to be the reason why the engine hit the bird, and also, the turbojet-5 engine has not undergone the bird swallowing test, no wonder there is such a dangerous situation." ”

Tu Kai was puzzled: "Bird swallowing test, Wei Ning, what are you talking about bird swallowing test?"

Yang Weining was slightly stunned, and then suddenly remembered that in this era, there may not be such a thing as a bird swallowing test in the R&D and production process of China's aero engine.

He thought for a moment and said: "The engine bird swallowing test is a test method that has been standardized in foreign countries in recent years, mainly to prevent bird swallowing from having a significant impact on the engine structure, and even causing air shutdown for this purpose. ”