When there is a problem, you have to think of all kinds of ways, and because you are surveying and imprinting, and have not gone through the development of the engine from beginning to end, so when the engine has a problem, it is even more blind, and it is difficult to find the root of the problem.

In this case, the comparative experiment is very important, after all, you have such an advantage, surveying and imitating, after the surveying and mapping, take the prototype and compare.

When encountering this problem, Wen Lao was under tremendous pressure, this engine is very important, and there must be no negligence, and now there is such a serious failure, what is the reason?

The discharge of the cannon must be related to the air intake, the air intake is not smooth, not enough, there will be this kind of flame in the combustion chamber backflow, does that mean that there is a problem with your compressor?

Compared with the previous turbojet-7, the compressor of this turbojet-13 engine has indeed been greatly improved, with different materials and different stages, so if there is a problem, the possibility of the compressor is also very large.

Wen Lao used this method of comparative experiment, and some of the causes of the failure can be ruled out, and now, the engine of the Soviets on the test bench also has the same failure, what does this mean?

"This means that it is likely that our engine is not faulty, but it is caused by our high-altitude test bench?" Just after Elder Wen finished introducing him, Qin Feng suddenly said.

Both engines have the same failure, which means that there may not be any failure, but they dare not say that the engine of the Soviets, which is quite strong and durable, how can there be these problems now?

"How is that possible!" Hearing Qin Feng's analysis, the old expert suddenly blew his beard and glared: "Our test bench is not the first time to test the engine, why didn't there be similar problems during the previous test, and, who are you?" ”

The old expert doesn't know Qin Feng, and the current Qin Feng still looks very young, making the old expert think that Qin Feng is just a deputy next to General Lin, or even a bodyguard or something, what does this kind of person know? Do you know how the engine works? What qualifications do you have to draw conclusions here?

"My name is Qin Feng, old man." Qin Feng hurriedly reported to his home.

Qin Feng? A name suddenly flashed through the old expert's mind: "Are you that heroic test pilot?" I didn't expect you to be so young! ”

As soon as Qin Feng said his name, the other party quickly changed his attitude and put away the contempt just now, after all, Qin Feng is in the whole system, it is a big name, one big thing after another, everyone knows it, recently, Qin Feng also went to the Soviet Union with him.

Qin Feng's analysis should have a certain amount of truth.

"But if there is a problem with our flight test bench, what is the problem?" The old expert was not as stubborn as he was just now, and he began to follow Qin Feng's train of thought.

In fact, Wen Lao has long considered this, since there are problems, it means that it is not the engine's business, and this kind of cannon has nothing to do with anything else, mainly the air intake, that is, it is out of the air intake of the test bench, so what is it?

His gaze followed the air intake, looked at it several times, and finally stopped at a position, where, there was a ninety-degree right-angle turn, not one, but two!

The intake and exhaust air are coming in and out of the sky, the opening is on the roof, and the engine, it must be horizontal, so, after the air intake comes down, before the engine, a right-angle turn is required.

And here, it was originally a warehouse, and later changed to a high-altitude test bench, and the opening position of the roof was not suitable, so one right-angle turn was not enough, and the test bench was shifted a little, and it became two right-angle turns.

Although the intake air flow is large enough, when passing through this right-angle turn, there will definitely be a loss of airflow, if the airflow is blocked from this right-angle turn, then when the engine speed soars, because the intake is insufficient, it will backfire.

That's right, that's it!

Wen Lao pointed to the two right-angle turns above and said: "The situation we have now is caused by the two right-angle turns in front of the engine intake of the high-altitude simulation test bench, rather than the quality of the design and trial production of the turbojet 13 engine, and this kind of air intake condition is absolutely impossible in actual use." So, I think we can continue our experiments and complete all the test projects here, and don't care about firing guns. ”

Wen Lao's words shocked many people, the engine was fired, that is a very serious problem, to you, can you not care, and then come?

Now, the J-7 3 project has been seriously delayed, the superiors are very unhappy, even the J-7 3 is not going to be wanted, the J-7 3's delay is mainly because of this engine, and a failure of the engine may take a long time to eliminate, but even so, Wen Lao now says that he doesn't have to care, he is definitely bold enough!

"Lao Wen, who is responsible for this matter?" The old expert continued.

Now, Wen Lao's speculation is very correct, but it cannot be further verified.

After all, the high-altitude test bench is what it is now, those right-angle turns cannot be removed, and the real high-altitude test can only be known when waiting for the real test flight.

Now, Mr. Wen said to let this matter pass, don't care, everyone let it go, what if it comes to the real test flight, and a similar failure suddenly occurs, who will be responsible?

This responsibility is very great, it can be said clearly, if something goes wrong, it is to go to jail, after all, this is to know the fault in advance, but let it go, this is dereliction of duty, once the fighter falls for this reason, how much will it be lost? The pilot, the plane, may be gone, this kind of accident, someone must go to jail, who is responsible, who will not be able to escape.

Wen Lao said firmly: "I'll be responsible, I'll sign this aspect, if there's a problem, look for me!" ”

At this time, it is necessary for someone with responsibility to stand up!

Many people have been in the officialdom for a long time, and they will become old fritters, and when they encounter responsibility, no one is willing to come out, for fear of affecting their future, but Wen Lao is definitely not such a person.

He is confident, the same problem has occurred in the engine of the Soviets, which means that it is not the problem of their own engine, it is clear that it is the reason for this high-altitude test bench, if their own side continues to be entangled in this matter, I don't know how long it will be wasted, and the motherland, can't wait!