Super military empire

Chapter 888 F-14 major hidden dangers in structural design!

(Greatly increased 10/20 for driden)

Hearing that the pilot is fine and that he should be able to fly, Liu Yijiu's inner self-blame has been reduced a lot.

But this test flight still touched him very much. He found that many things were not completely controlled as he thought.

Why is there such a situation?

Obviously, the initial Cobra maneuver was completed very well. It stands to reason that the output power of the engine is much stronger than that of the original engine. There is no problem in completing the Super Cobra maneuver. The back flip also proved this problem.

Yin Qingyuan's feedback was too little.

Only after thoroughly inspecting the fighter plane and waking up the test pilots can we draw conclusions about why.

The wounded were transported away by ambulances and helicopters, and the fighter planes began to be dragged back to the assembly workshop for inspection. Liu Yijiu kept inferring in his heart what caused it.

"I'm waiting for your explanation. If the explanation is not good, take off your clothes yourself!" Long Yaohua's cold look when he left made Liu Yijiu scared for the first time.

Yes, since this era, he has been insecure because he knows the changes at the top of the country and the direction of policy tilts. This insecurity is not because of fear, but because things that are too far away cannot be controlled by him, instinctively. A sense of worry.

He has never been afraid of anyone.

Whether it's the old man, Long Yaohua, or even Li Yunlong, even the real Ziyang can't do anything to him.

The original Chinese boss is an obvious example.

But this time, he discovered that there are a lot of things that he can’t do whatever he wants. This is the Republic of the 1980s, with all kinds of foundations lagging behind, and the serious methods of pilot training are not scientific enough. The strength is not high enough, the material technology is backward, the processing and manufacturing technology is not good, and the fighter design ability is also not good.

Liu Yijiu personally guarded the assembly workshop. He wanted to know the test results of the fighters as soon as possible. At the same time, he also asked Li Rui to go to the hospital to take care of the many wounded in person, just to get the news as soon as possible.

After passing the coma, Yin Qingyuan was awake several times after being rescued, but each time was very short, and there was no way to effectively express the situation on the fighter plane.At that time, time was too tight, and there was no time to report all the situations encountered, and one had to concentrate on manipulating the fighter planes, otherwise it would be the solution of plane destruction.

"Director Liu, you'd better come over and take a look..." While the haggard Liu Yijiu was smoking a cigarette and thinking about where the problem was, Zhu Hodao's eyes were also bloodshot.

This accident reminded them.

It is absolutely impossible to venture into a project blindly. Although the engine has been flying for hundreds of hours at the beginning, the engine is different from the original production process.

At least, these actions should be carried out after flying for tens of hours.

How did they know that Liu Yijiu was not worried that the engine would not be able to withstand it, but worried that the F-14 would be disintegrated after being disassembled and assembled!

Originally, I would take the Iraqis to watch the flight test, but Liu Yijiu forgot the Iraqis to the country of Java because something happened, and he directly gave them the video taken on the spot.

Although there is no shock to watch live in the video, it does not miss the scene of the last fighter plane losing control. This video shocked the Iraqis.

I wanted to talk to Liu Yijiu in detail, but I couldn't see Liu Yijiu.

Anxious they are like ants on a hot pot.

"Nima! As expected! The f-14 is just a vain, it's not patience at all!" Liu Yijiu let out a sigh of relief as he looked at the situation in front of him.

On the F-14 from which the engine was disassembled, there were already fine cracks at the joints of the wing roots. Even the riveting of many skins on the fuselage had small cracks. It is estimated that the force will be added. The fighter plane disintegrated directly in the air.

Due to the unique aerodynamic design of the f-14, the main force-bearing structure is positioned on the upper side and becomes an upper single wing.Also because of the variable swept wing, the wing bearing is strong, the wing root is thick, and the main landing gear is also logically arranged at the wing root. However, the place with the highest structural strength on the entire body is covered by this super maneuver test. The crack is obviously scrapped.

"This is not necessarily a problem with the f-14 itself. We have disassembled and assembled this fighter many times, and we have also made some modifications to the internal avionics system. Now we are not sure. This is because the f-14 itself does not Fa withstanding such a huge overload is still caused by our inability to pass the assembly accuracy..." Zhu Hodao said with some embarrassment.

"It should be a design flaw of the F-14 itself. The maximum level flight speed of this fighter at an altitude of 12190 meters is only Mach 2.34, and the speed above sea level is only Mach 1.2. You have checked that the computer is actually at the speed of the afterburner. How much has it reached?" Liu Yijiu shook his head, the old American is not from the Soviet Union.

Moreover, the f-14 fighter itself is a variable-sweeping wing, and the hydraulic system is very complicated. When performing super maneuvers, in order to obtain less resistance or greater lift, the variable-sweeping wing is constantly in the process of maneuvering. Changing the angle.

This can be understood from the wingspan seen from the ground.

If it hadn't been for Yin Qingyuan to minimize the wing angle and maximize the wingspan during the final reverse torso upward process, it would be impossible to complete that maneuver.

"It is close to Mach 2.9, the overload exceeds 8g, which is more than double the overload when using the Cobra maneuvering, and it is also nearly 2g more than when using the Super Cobra maneuver... Also because of this, the test pilot will be in an unbearable situation... …"

"Did you communicate with Simon? What does he think?" Liu Yijiu suddenly asked Simon Love's attitude.

All these things in front of them overturned their perceptions of f-14, which Liu Yijiu didn't know before.

Perhaps it was because the Americans discovered these problems that they finally retire this fighter, which has not been in service for too long, in the face of strong opposition from the military.

"Simon has seen it too, but he took some data, and he hasn't given a reply yet..." Zhu Houdao didn't exclude Simon because of a conflict with Simon Love this time.

It is necessary to find out the problems in the accident as soon as possible. Otherwise, for the entire project, whether it is the imitation f-14 or the giant panda project that Simon Love is modifying with the f-14 as a circle, it will be a huge Disaster.

"Then continue to analyze!" Liu Yijiu gritted his teeth and said.

If it is really the f-14 that has major hidden dangers, it will not be of much use if it is copied.

Of course, these hidden dangers will not appear if used in the same way as the US military.

The problem is that the Republic cannot be equipped with as many fighters as the US military — no money!

After speaking, Liu Yijiu thought that the engine inspection had not been sent to him, so he said to Zhu Houdao, "You and Feng Lun will analyze it more. I will check the condition of the engine. If the engine is nothing Failure, then, the problem lies in the fighter itself. At that time, we will analyze whether it is caused by our poor assembly technology or our own design defects, and use the computer to do more analysis. During this time, comrades will work hard..."

Although it is possible that the root cause of the problem has been found, for Liu Yijiu, it is indeed a big blow.

From the beginning, he deliberately wanted to get the f-14, because this fighter was a classic for too many people.

It's not because it can be sold for 80 million US dollars in this era, but this kind of fighter is an epoch-making product.

This is the world's first third-generation fighter, and at the same time, the most advanced third-generation fighter. However, due to the reasons of the US government, it was eventually retired only because of the high maintenance cost.

The US government has never been afraid of the army burning money, and has always maintained the world's largest aircraft carrier fleet and nuclear submarine force.

The f-14 was originally a carrier-based aircraft. The f-15 and f-16 of the same generation have been carrying the flag for the US military for decades. Long time.In fact, there is no.

Even the variable swept wing, the US military has not adopted this design after the F-14 was retired.

Hurrying to the Power Research Institute next to Taiping Temple Airport, Qi Hai was about to go to Liu Yijiu to report on the situation.

On the same day, they disassembled the engine from the fighter plane, hauled it back to the assembly workshop overnight, and began disassembly for inspection overnight.

Just got the results.

Compared with the pressure on all kind faces, Qi Hai excitedly said to Liu Yijiu, "Director Liu, our engine, there is no problem at all! Although the afterburner time is not long, the assembly accuracy is not good. Any changes, even the impeller of the engine will have no problems..."

"There is no fault at all? Where is the root of the impeller welding? Have you observed it with a microscope?"

Liu Yijiu's mouth twitched.

It seems that all the news is confirming that the strength of the f-14 will fail in super maneuvers that need to withstand greater overload at higher speeds.

Does f-14 really have a huge hidden danger in structural strength?

If this is really the case, and it is covered by the advanced aerodynamic layout, then, where should the imitation project go?

If the news is known from the above, and the new director of the National Defense Science and Technology Industry Commission Jiang Sen squeezed the handle, the project is faced with dismounting, and there is absolutely no room for negotiation. Unless they don't report this hidden danger upward...