Military Industry of Great Powers: Build the Strongest Flanker

The photos taken by Ah San spread all over the world and even appeared in Chinese newspapers and periodicals. No one knew the origin of this missile.

The appearance is very similar to the French Magic R530 missile, but it is difficult for the R530 to shoot down the Mirage 2000.

Internationally, the r530 is compared to a goose. That is because the infrared seeker of the r530 is extremely slow and cannot keep up with the fast maneuvering flight of the third-generation aircraft. It is a product that has been eliminated.

When Zhao Guoqing saw the drawings, he was impressed by the wisdom of Chinese scientists.

They installed the indium antimonide sensing components and control computing components of Monster Snake 3 on the imitation R530 missile, forming a new missile with sensitive response, excellent aerodynamic appearance, and a range increased by three kilometers.

Isn't this the main force of foreign trade in the future, the PL7-M foreign trade missile.

What does this mean? It means that China has completely understood the technology of the French Magic R530, otherwise it would not have carried out such a successful modification. This is also in line with our technical route, every second counts, and multiple arguments are made.

Zhao Guoqing received a report from Director Gao that Pakistan Railway was now extremely enthusiastic about cooperating with Chengdu Aircraft to develop the Super Seven fighter jet. Their air force commander has arrived at Chengdu Aircraft.

Gao Changming said: "Chengdu Aircraft plans to cooperate with Rolls-Royce, using Rolls-Royce's xj40 engine and fly-by-wire system, flat display, inertial navigation technology. Of course, we will still use our own radar. National Day, be prepared!"

Zhao Guoqing nodded, feeling relieved. Without Grumman as a scapegoat, the project looked much more reliable.

In the afternoon, Zhao Guoqing took Mr. Mu to the synthetic aperture radar test site. The long guide rails and detection points all over the terrain made Mu Hu continue to be speechless.

Muhu said: "It cost a lot of money, right?"

Zhao Guoqing nodded and said, "Twenty million were smashed before and after!"

Mu Hu took a long breath and said: "I asked the General Staff, they haven't allocated a penny to you in the past two years. I looked at your research institute and lithography machine workshop, and I heard that the one that was dismantled The photolithography machine is worth 10 million, isn’t it amazing?”

Mr. Mu was filled with emotion, which research institute is like this, self-sufficient, does not require any funding, and is so large.

He continued: "The idea of ​​converting the military to civilians was proposed in 1982. You guys at 101 did the best. A program-controlled switchboard helped the country solve a big problem and solved the funding problem for you. The experience of 101 Institute It’s worth promoting.”

Zhao Guoqing recognized the conversion of the military into civilians, but there are still many ideas that have not been changed, and many measures appear to be too conservative.

"Mr. Mu, there are mature examples in the United States of converting the military into civilian use and then supporting military industry with civilian use. We need more private enterprises to digest military industry technology, and we also need to explore how military industry technology can be used for civilian use.

In fact, there are many imaginations about chips. We may not be able to build microcomputers for a while, but we can build simpler game consoles and expansion chips attached to microcomputers. As long as we join the foreign semiconductor production chain, we You can get opportunities for technical iterations and possibly surpass them! "

Mu Hu nodded affirmatively. This time he visited 101 Research Institute and was filled with emotion. Especially in the field of semiconductors. 101 Research Institute was already far ahead in the country and was developing EDA software, which gave Mu Hu more expectations. .

Zhao Guoqing was able to shorten the development cycle of new radars to two months. Mu Hu seemed to have found some answers...

"Factory 317, the 14th Institute of China Electric Power and the Beijing Institute of Optoelectronics are the main players in the localization of the Monster III missile. Factory 317 is also a processing plant that produces the Pili series of missiles. They have a thorough understanding of the technology of short-range air-to-air missiles. And there is experience in the design of medium-range air-to-air missiles.”

This was an unexpected surprise for Zhao Guoqing. He quickly asked: "Has Factory 317 designed a medium-range air-to-air missile?"

Mr. Mu nodded and said: "In 1979, 317 Factory passed the technical transformation of the French R530 air-to-air missile, doubled the original size and added a first-stage rocket at the end, increasing the range to 85 kilometers, and the terminal speed can reach Mach 3, I just can’t find a reliable way to guide it, so it has been kept in the warehouse!”

"That's great!" Zhao Guoqing said with a smile. Although he had studied aerodynamics, it was just that. He spent most of his life on radar. He could say that about aerodynamic shapes, rocket engines, solid fuel, and flight control. I only know the surface.

Now that we have a platform, the next work will be much easier to handle. As for whether the platform is good or not, Zhao Guoqing has not considered that much. Let’s solve the existing problems first!

Mu Hu returned to the capital on the same day to get started with the project.

Two days later, the 317th Factory sent Chief Engineer Shi Peigang to deliver the technical data of the "R530 modified" missile to the 14th Institute under the protection of a squad of soldiers.

Director Gao specially found a separate room to place these materials.

In the data room, Chief Engineer Shi said to Zhao Guoqing: "The wind dynamic experiment has been done. The steering overload can reach seven g. The joints have been reinforced. The speed in the beginning was not enough, but in the middle and late stage, the second-stage rocket exerted force. Because it has greater thrust and is more maneuverable than the R530, we did all the testing!"

There are more than two hundred pages of test data, which are very detailed, including data from launch to fuel exhaustion, static thrust, dynamic speed, thrust changes, and aerodynamic changes at hypersonic speeds.

What Zhao Guoqing is most concerned about is the control system. It has a double canard layout plus a tail wing. The front canard is a vortex generator and the tail wing is fixed. Only the secondary canard can rotate to control the direction. This layout has good maneuverability at a small angle of attack.

However, due to the presence of the front canard, the resistance is too large, which has great disadvantages. The terminal speed is limited. At high angles of attack, it is easy to stall and lose maneuverability, which goes against the trend of pursuing lightweight control.

However, this shortcoming can be corrected through guidance. Calculate the trajectory of the enemy aircraft in the computer and place the guidance target two meters in front of the nose. As long as the fighter plane is controlled by the tail, the status of the nose must be The slowest to change.

The data contains detailed information about the rotation angle of the sub-canard and its impact on various flight states of the missile, especially at hypersonic speeds.

There was even a complete set of information on the canard control system of the original R530 missile. Teacher Xiao Zhao’s panic was finally calmed down.

He had a good idea and sorted out his general ideas.

Based on the baseline shape of the missile, a differentiated geometric model is established through a computer.

An electronic computer was used to conduct precise numerical calculations on the external flow field of the missile under different angles of attack. The changes in the axial force coefficient, normal force coefficient and pitching moment coefficient of each model with the angle of attack, as well as the changes at different speeds and different angles of attack, were obtained. The pressure distribution on the lower surface of the posture.

Then combined with the actual test values, verification is performed, and finally computer simulation is used to obtain the best state control function, which is used as the basis for the judgment of the computer control program.

Of course, this idea still needs to be verified.

Zhao Guoqing said: "General Engineer Shi, I plan to build a missile model in the computer. I need comrades from the 317 Factory to help us establish the corresponding mechanical mathematical models for static load, hypersonic aerodynamic load, impact load, noise, vibration load, etc. You are experts in this theory!"

Shi Peigang's expression changed dramatically and he said: "Build a model? Computer analysis? We have only done partial structural finite element calculations..."

Looking at the astonished expression of Mr. Shi, Teacher Xiao Zhao nodded. He was going to usher in a new era of computer design of hypersonic aircraft...