Chapter 1431

Since Li Xianghong proposed, he must have found some problems, and this kind of problem is absolutely unacceptable to others.

Such a problem is not encountered by the Chinese technical team.

Li Xianghong was not embarrassed at all, and did not think that involving Soviet experts in the failure analysis would make the Super-7A technology leak.

Ignoring others, he looked at Xie Kai and said, “I always feel that this happened to the engine, but there is no evidence. The various parameters of the fighter are normal. Through the recording of the pilot’s dialogue with the tower, I found that the fighter could not ignite at the last moment. Success, this situation has never been encountered in the flying dragon’s head-up maneuver before.”

Immediately, Li Xianghong explained his reason for suspicion.

The dragon’s head up is the signature maneuver of the Super-7A fighter.

Various large-scale maneuvers have been done countless times before, and the overload is still increasing during the flight, in order to analyze the structural strength of the Super-7A and whether the design is reasonable.

It is normal for the engine to stop during a large maneuver, and the ignition can be successfully re-ignited in the air soon.

Engine parking is a controllable operation item in the flight test plan.

Up to now, the Soviet Union has delivered nearly 300 units, including a new batch of engines provided. These engines are assembled on the newly produced Super-7A to replace the first one that has reached its flight life. Approval of super-7A engines, while preparing for delivery to Iraq.

The Super-7A that was involved in the accident happened to be assembled with a new batch of engines provided by the Soviet Union.

Once the engine has a problem, it will eventually affect the entire transaction.

The cause of the failure of Yang Chao’s Super-7A could not be found out. The only thing that made people suspect was the newly-provided engine of the Soviet Union installed on this fighter.

I had never encountered a situation before, and there was a problem after changing the engine. I can only suspect that the problem comes from the engine.

“The engines provided by the Soviet Union have not had any problems before, and this batch of engines is unlikely to have an accident…” Cui Yuanjia said in total, “We have conducted a comprehensive inspection.”

“The fact that the Soviets provided nothing in the front does not mean that there is no problem in the latter.” Xie Kai frowned and looked at Cui Yuanjia. “For those who engage in technology, never be superstitious and whose technology is always reliable.”

A word made Cui Yuanjia speechless.

Later, Xie Kai asked Huo Haiyuan and others: “The fighter is a new engine assembled? Has the physical and chemical analysis of the various parts of the engine on the crashed fighter been done?”

He Haiyuan nodded hurriedly.

“It is indeed a new delivery engine. The Soviets delivered 60 units, not only for the fighters delivered to the Iraqis, but also for the engines used by the Super-7B for the follow-up test flight missions. The Soviets did some small things. Improvements to improve maintenance performance…”

He Haiyuan introduced the details.

This makes Xie Kai more puzzled.

“Although the Soviets are not good in certain technical fields, they are still relatively strict in quality control. These engines use the same engines as the MiG-29. It is impossible for them to speed up the completion of the transaction, regardless of the production quality, and provide us with quality The engine of the problem…”

The quality is really problematic, which will affect the transaction of thousands of engines.

It is absolutely impossible for the Soviets in economic difficulties to do such a thing at this time.

“Are all the inspection data available after the engine came back?” Xie Kai asked He Haiyuan and others.

He can only rely on his experience to see if there are any violations in the whole process.

Cui Yuanjia nodded: “All the engine technical documents are checked in accordance with the original technical standards. All we can understand is to pass the technical standard inspection and conduct a comprehensive inspection to ensure that the quality of the assembly and parts is correct. Before assembly, each engine The engines have also been tested on the ground test bench. The previous engines were all inspected in this way…”



The introduction of the RD-33 engine has not been short.

China’s various inspection procedures are mature. This is a matter related to national defense and security. Who dares to make a joke?

Xie Kai had learned before that, although Yang Chao was young, he was the most stable person in the entire flight test team.

He would definitely not perform various illegal operations like Tu Lang. Without ground commands, he would not be able to fly dangerous actions, and there would be no possibility of operational errors.

It is precisely because of Yang Chao’s stability that the young Yang Chao was first chosen to be responsible for the test flight of a fighter plane equipped with a new batch of engines.

There was no problem with the previous test flight. As a result, when the dragon raised its head and maneuvered under the last asymmetric configuration before delivery, an accident occurred and it crashed!

During the test flight of the first batch of super-7A engines equipped with an asymmetric configuration, the flying dragon also raised its head and maneuvered without any problems.(Read more @ wuxiax.com)

Seeing Xie Kai meditating, Cui Yuanjia reminded him by the side.

“Xie Kai, according to the current situation of the Soviets, if they want to complete the delivery quickly, under the condition of ensuring the supply of the MiG-29, the production speed has exceeded their production capacity, and we have negotiated that they will deliver it in less than a month… In such a short time, the quality is prone to problems. Even, it is very possible that the processing technology of some materials has been simplified…In this case, it may also lead to serious problems. The physical and chemical analysis room has not yet produced results…”

Huo Haiyuan and others have indeed considered these issues, but they think it is unlikely.

It was the Soviets who delivered the engine.

The two hundred engines delivered by the Soviets have not had any failures until now, except that the service life is not long.

The engine delivered by the Soviet Union this time was used to assemble the MiG-29, their own engine!

The MiG-29 is equipped with its own air force by the Soviet Union, and it is less likely to malfunction.

In one month, no one can produce so many engines.

In order to speed up the deal with China, the Soviet Union gave priority to the engines that should have been used in the MiG-29 to China, which was in desperate need of engines.

After hearing these introductions, Xie Kai said directly: “Forget about this, I will respond to the base leaders and ask them to immediately contact the people from the Klimov Design Bureau and ask them to send someone to investigate whether it is caused by the engine. The crash… If it is really because of engine problems, the delivery of the fighter jets we delivered to Iraq must also be stopped.”

There was a crash, and all Super-7A in the country were grounded for inspection.

The new Super-7A produced by the 132 factory must also undergo a comprehensive inspection.

The entire Super-7 project was shrouded in the shadow of the crash of a fighter plane.

If it is not resolved as soon as possible, it will cause a serious blow to the entire Super-7 project.

Xie Kai does not allow this to happen.

“There is a problem with the RD-33 engine provided by the Soviet Union?”

Zheng Yucheng and Wang Guilin looked at Xie Kai in disbelief.

“Before the Soviet Union provided 200 engines, the fighters produced, and under the guidance of our technicians, the fighters produced in Egypt were not found to have engine problems or malfunctions!” Wang Guilin reminded Xie Kai.

What Xie Kai said is too sensational.

If there is a real problem with the engine, thousands of RD-33 engines must be smashed into your hands.

Now 404 is short of money, but no money is wasted on it.

“It’s not been checked, and it doesn’t meet the technical requirements.” Zheng Yucheng didn’t believe what Xie Kai said.

It’s too scary.

“At the moment it is just a suspicion. It is not necessarily the engine problem. The design and R&D team has analyzed for so many days and has not found the cause of the failure. At present, we can only ask someone from the Klimov Design Bureau to come over and analyze…”

Xie Kai is not a panacea.

He did not know whether the RD-33 engine had any fatal flaws.

The reliability and maintainability of Soviet engines are relatively poor, which is far from the publicly advertised data, especially the overhaul time.

Many of the first batch of engines imported from the Soviet Union have been deactivated because of their long flight time and their service life.

Once the engine has a problem, the impact on Super-7A will be catastrophic and cannot be reversed.

In the short term, the domestically produced turbofan-6G engine is unlikely to be assembled on the Super-7A fighter.

Since Xie Kai mentioned it, Zheng Yucheng and Wang Guilin took it seriously even if they didn’t believe it.

Wang Guilin immediately contacted the Soviet side and asked them to send technicians to assist in investigating the problem.

Order thousands of RD-33 engines, once the engine quality has serious problems, there will be no cooperation in the future.

During this period of time, the Soviet Union was busy arguing with the United States internationally, and it became more and more fierce.

The world’s attention is on the two countries, and no one is concerned about the crash of a Super-7A in China.

Israel signed a contract with the 404 for the first batch of parts and components for fighter jets that have been cut and put into production in factories in the Soviet Union.

The first batch of Super-7A fighters produced by China delivered to Iraq has passed the scheduled delivery time.

The fighter planes have been assembled, and they have also been tested by flight tests. Various performances meet the technical requirements, but the Chinese side still has not handed them over to Iraq.

The recent Super-7A crash has forced China to suspend delivery.

The impact of the crash is great, and large-scale quality problems after delivery will have a serious impact on the reputation of the entire 404.

The golden signboards that have been built so hard over the years can’t be destroyed here.

After the production, all the fighters were parked on the runway outside the assembly workshop of the 132 factory. Without investigating the cause of the failure, China would not deliver the fighters.

Even Pakistan and Egypt Super-7A are also required to be fully inspected.

Did not find any hidden troubles.

The Super-7A, which used the first batch of engines, was also completely grounded.

Iraq is anxious for China’s delay in delivering Super-7 fighters.

Iraq, the capital Baghdad.

The secret official residence of President Silly Oki.

The president was looking at Ibrahim with a gloomy expression.

Other senior military officials also didn’t have a good expression on Ibrahim.

In particular, the newly appointed Minister of Defense Kazim, the newly appointed Minister of Logistics and Purchasing Kamal, and the Minister of Military Industry Kamal, who are from the president’s hometown Tikrit, are among the top military leaders who are most trusted by the president. Laxin was even more dissatisfied.

Before Ibrahim reached a deal with the Chinese, the money has been paid for a few years, and the Iraqi military is still waiting for equipment.

As the Minister of Defense, Kazim is also the commander of the Republican Guard after being expanded and upgraded by the Tikrit Division.

It is even more angry that the Chinese fighters have not been in place for a long time.

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