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After finishing this business, Liu Yijiu returned to the bus again, and he didn't even have time to ask about the progress of the 20th fortune.

Nothing happened at Dabashan base because of anything else!

This is the first time in the Ninth Academy that this happened to such a thing in so many years - according to the new ground-to-ground missile designed by the Soviet SS-23 Spider to equip the Blue Army missile forces, an explosion occurred in the air just 8 seconds when it was tested at the Dabashan Missile Test Site!

Fortunately, there were no major casualties.

However, Liang Sili, who was responsible for the design of this tactical missile control system with a range of about 600 kilometers, and chief designer Du Zhongkun were injured.

Liu Yijiu hurried back to the Dabashan base. The technical team on the aerospace side needed their financial support to develop the Dongfeng-6 with a range of 19,000 kilometers and the Dongfeng-7 with a range of 15,000 kilometers. So after the team arrived at the Ninth Hospital and completed the work of medium-range air-to-air missiles, they took the excuse that they had to continue to improve and did not return to the Ministry of Aerospace Industry.

With these experts in this area, the Ninth Academy has become even stronger in this area.

At the same time, the 336 rocket launcher is constantly improving. At the same time, the 8208 ground-to-ground tactical missile with a range of 250 kilometers has been successfully promoted by using the Hongqi-2 air defense missile. The Ninth Academy has the foundation for tactical missiles with better research performance, longer range and higher strike accuracy.

The Soviet SS-23 is a missile that can fight both nuclear wars and conventional wars, especially to increase artillery attacks deep targets in conventional wars. The Blue Army currently only has 8208 missiles with a range of 250 kilometers, and needs a longer-range missile with a range of 500 kilometers to 600 kilometers.

Du Zhongkun and others have been doing it for a long time, and with the addition of aerospace, the progress will naturally be faster.

Liu Yijiu no longer stares at these things in person.

But I didn't expect that such a problem occurred during the first test shot. I had never encountered this before.

The first thing that happened when returning to the base was that Liu Yijiu went to the base hospital to visit the two injured technical masters.

But I didn't expect that I didn't see anyone at all.

Only a few staff members who were also at the launch site were still undergoing inspections, and no one was seriously injured.

"They forced their way out just after a simple explosion. They did not conduct a comprehensive inspection..." Zhao Min shook her head at Liu Yijiu's inquiry, her face full of helplessness.

After learning that several people arrived at the test site, Liu Yijiu asked Chen Dashan to mobilize a helicopter to send him to the missile test site. There are now a large number of technicians gathered there. The launch site is messy, but it is not cleaned up. Many scientific researchers in white coats are looking for various debris inside.

"Old Liang, Uncle Du, you are injured, why don't you do a good job of checking?" Liang Sili was obviously heavier than Du Zhongkun. The gauze wrapped around his shoulders were seeping out of blood, while Du Zhongkun's hair and eyebrows were burned.

These old guys really don't take themselves seriously.

Liang Sili saw Liu Yijiu and a smile appeared on her pale face, "The explosion was far away from us, and a piece of wreckage hit the launch vehicle..."

Looking at Liang Sili's gaze, Liu Yijiu's brows frowned deeply, and there was the wreckage of a launch vehicle over there!

"The missile is not equipped with a warhead, and there are no flammable and explosive items on the launch vehicle. How could it burn?" Liu Yijiu asked in confusion.

"It hit the fuel tank..." Du Zhongkun, who turned into a bald head, said with a wry smile.

This is unexpected, and it is also surprising!

"Xiao Liu, you came just right, help us analyze what causes it. Before the launch experiment, we used computer simulations many times. At the same time, many of these technologies are based on the 8208 missile. Logically speaking, our solid fuel technology is already very stable and there will be no explosion... I don't know where the problem occurs this time." Du Zhongkun said to Liu Yijiu with a wry smile.

Rocket solid fuel has always been the focus of research in the Ninth Academy.

Liu Yijiu initially proposed to use ammonium perchlorate (NH4ClO4), plus no more than 18% aluminum powder as the combustion agent, supplemented with 14% polymer end hydroxyl polybutadiene (HTPB) as the binder, and a certain amount of nitroglycerin was added as a high-energy plasticizer to form a modified high-energy composite solid propellant fuel.

After years of research, the technology in this area has become quite mature.

In order to improve mobility, the missiles studied by the Ninth Institute are basically mainly solid fuels.

Whether it is the black arrow, Houyi, or the Changkong Sword, all of them use such fuel, and no problems have occurred.

And after testing, it is difficult to explode.

"Has the solid fuel been tested and tested before it was processed into a drug column?" Liu Yijiu walked around the wreckage at the scene. In this case, he could not understand anything at all. The process analysis and even the inspection records were reviewed many times.

It is impossible to find out the problem at all.

"All of them were carried out according to the regulations. The ratio was based on the recipe above and simulated by computer, without any problems..." Du Zhongkun was very impressed.

"Where is the control system? Has the engine been tested?"

"All have been checked. I have been investigating these days..." Liang Sili also smiled bitterly.

They have never encountered this situation before.

Liquid propellants are prone to explosion, but solid fuel will undergo complex and detailed multiple inspections before being processed into a drug column and loaded into a missile fuel compartment.

If there is no explosion, it is very easy to find the cause of the explosion. However, after the explosion, the various data monitoring devices on it were destroyed and could not be repaired.

"Test another shot." Finally, Liu Yijiu made a suggestion.

There is also a backup bomb, although in this case, if the cause of the failure is not found, it cannot be fired again, otherwise things will be prone to happen.

Liu Yijiu had no choice.

You can't give up this project just because you can't find the reason.

The management committee is very cautious about this matter. After all, the missile is not anything else. If the last experiment did not explode 8 seconds after it was launched, and the explosion occurred at the beginning, the core personnel of the entire R&D team would probably have to be scrapped.

Finally, the Management Committee approved the proposal, but required more stringent inspections, records and relevant monitoring at each step.

"At this time, we should stop and find the cause of the accident before continuing. Otherwise, even if the test is successful, we will not be able to find the problem. In this way, the design of this missile has serious hidden dangers and cannot be equipped in the army..." Wang Shunyi hopes that Liu Yijiu can be more cautious.

It’s not that Liu Yijiu was not careful, but that he gathered the top technical teams of the Ninth Institute and the Ministry of Aerospace Industry that could not detect the problem. In addition to continuing to test and obtaining more test data, there is no other way to do it.

Liu Yijiu did not act arbitrarily in this matter, but instead left it to Du Zhongkun and Liang Sili to take charge.

"Or why, let's do remote control launch first." To ensure safety, Du Zhongkun put forward such an opinion. "The monitoring devices in various parts of the missile are monitored remotely, so that even if there is a problem or any abnormality is found..."

His plan is to change the control device originally on the missile launcher to remote control through remote control devices.

At the same time, the detection of the entire missile is monitored using long-range conditions.

Previous tests and various detection devices were prepared to wait until the missile fuel was exhausted and landed before data was taken. Missiles without warheads hit the target and would not explode.

"This is OK. If such a modification is made, how long will it take?" Liu Yijiu nodded. This is the safest thing. "And, in order to avoid accidents, we should put the missile test-fire into the test-fire site in the northwest Gobi."

Test shooting was carried out in these places, and although the route was selected, it still passed through some villages.

"If you go there for a test firing, without satellite monitoring, there are not enough radar stations to be detected..." This is a huge problem.

The reason why we chose to test the test site here is that from here to the predetermined area of ​​launch, radar stations for detection are built at any distance from here to the designated area of ​​launch.

"This is not a problem. Then several aircraft will be dispatched for inspection. Safety first." Liu Yijiu is much more mature and stable now.

Military research and experiments should not appear in the eyes of ordinary people.

An accident will cause irreversible damage.

"If this happens, it is estimated that the test shot can be carried out in one month. Many things need to be redesigned, although they are all ready-made." Du Zhongkun said to Liu Yijiu.

Liu Yijiu nodded and told them that during the test shooting, the entire team followed him into the Gobi Desert.

No project can be achieved overnight, and many projects will even suffer bloodshed and sacrificed during the research and development process. The Ninth Hospital only encountered this time, and there was nothing unacceptable to it. The only reason was that it could not be found.

Before Liu Yijiu could also devote himself to technology research and development, he had already been found by his Iraqis through Zhou Jun from the import and export trading company.

Their war with Iran has gradually become calmer with the increasing number of new fighter jets in Iran. Now the tired two sides have begun to sit together seriously for discussion to end the war.

The relationship between Iraq and the United States and the Soviet Union has undergone great changes due to the war.
Chapter completed!