Listening to Qi Junwen's words, Lu Jiadong nodded with satisfaction, in all fairness, Lu Jiadong has always put the indicator of maintenance and support in the development of all weapons and equipment, whether it is the 78 series of guns, light automatic grenade launchers and portable rocket launchers, but most of the weapons and equipment developed before are light weapons, in addition to ensuring good reliability and ease of operation, it is enough to take into account the maintainability. ≧，

However, the new large-caliber long-range artillery is different, this belongs to the real heavy weapons and equipment, whether it is size, weight and complexity can not be compared with light weapons, this requires the maintainability of this index not only to be listed separately, but also to become an important indicator of artillery development to implement and implement.

In fact, not only artillery, but also other technical equipment, as the saying goes, the layman looks at the lively, the insider looks at the doorway, when a large number of technical equipment gallops across the exercise ground, the target into a sea of fire, the average person will feel that the power of these equipment is amazing, and the fight is also very good-looking.

However, from the perspective of professional military personnel, in addition to the firepower strike capability of these equipment, battlefield mobility and survivability, they also attach more importance to another index, that is, the attendance rate of weapons and equipment, and behind the attendance rate is the maintenance and guarantee of weapons and equipment.

Just like a car at home, after driving for a period of time, you have to go to the 4S shop to change the oil, do a maintenance or something, the basic maintenance principle of weapons and equipment is actually no different from this, but because of the complexity and special use of weapons and equipment, it is required that their maintenance should be faster and faster.

Especially in the field conditions, when the battlefield is changing rapidly, the battlefield environment is complex and diverse, and the living conditions are also very harsh, in this case, it is necessary to repair the battle-damaged and faulty weapons and equipment and quickly transport them to the front line. It is not easy to do this, which requires the designers of weapons and equipment to determine the maintainability index when developing, as small as a screw or as large as an engine, whether it is replacement or maintenance. It must be convenient and fast, that is to say, if it can be installed independently, try not to use tools, and things that can be solved with a screwdriver will never add a wrench!

Weapons and equipment, if they are outstanding in terms of maintainability, will play a large, even decisive role, in actual combat, such as in the Fourth Middle East War that broke out in 1973, due to the surprise attack of the Egyptian army. In just a few days, Israel's proud armored forces were devastated.

However, with the design concept of the American-made M60A1 and the British-made "Captain Hundred" tank in terms of high maintainability, especially the important assembly of the American-made M60A1 tank adopts a building block structure, which is not only convenient for daily maintenance, but also conducive to the overall disassembly and installation.

It was with this advanced concept that Israel repaired all 250 tanks damaged in the war and put them back into battle just two days after the start of the war, when these tanks, which had been hit once or more by the Egyptian or Syrian forces, reappeared in front of their eyes. The Egyptian and Syrian armies couldn't help but exclaim, what kind of magic did the Israelites use to do it!

The Israelites had no magic. They just reasonably applied the design concept of maintainability of weapons and equipment, and this also allowed the Israelis to maximize the effectiveness of their equipment, so that the effectiveness of 1+1 is greater than 2, thus laying a good foundation for finally turning the tide of the war.

In fact, not only the Fourth Middle East War, as a military expert who traveled through later generations, there are many similar examples in Lu Jiadong's mind. Because of this, in the development of new guns, on the premise of ensuring firepower and strike capability, he integrated maintainability into the design of artillery as an important indicator.

Although this indicator is not as prominent as that of more complex technical equipment such as tanks or airplanes, Lu Jiadong mainly wants to instill a concept in the research and development personnel present. Maintainability is also a manifestation of combat effectiveness.

If this concept can take root in their hearts, eventually sprout and deliver the results, China's research and development of weapons and equipment will take another big step forward, and the combat effectiveness of the troops will also be greatly enhanced.

Because of this, after listening to Qi Junwen's words, Lu Jiadong couldn't help but emphasize again: "Everyone must remember that the maintainability of weapons and equipment may also generate powerful combat effectiveness!"

After speaking, Lu Jiadong turned his face to Hu Qinghua, who was sitting next to him who was in charge of the development of supporting ammunition, and once again admonished: "The same is true for ammunition!"

After Hu Qinghua listened to Lu Jiadong's words, he nodded appreciatively, and then recorded Lu Jiadong's words seriously in the notebook, and Lu Jiadong also put an end to this topic after emphasizing the performance of the maintenance of the new artillery, and then turned his eyes to Qin Jingbin, a researcher at the Materials Research Institute who was sitting in the middle of the venue and had just rushed over from Yangcheng for a meeting today, but had never said a word, and asked Qin Jingbin with a faint smile on his face:

"Researcher Qin, how is the progress of our cannon steel materials?"

"This" Listening to Lu Jiadong's words, Qin Jingbin's emaciated face showed a trace of embarrassment, and Lu Jiadong couldn't help but squeeze twice to the middle when he saw this pair of thick lying silkworm eyebrows:

"Researcher Qin, if there are any difficulties, you might as well speak up and see if you have any ideas and solutions to solve them!"

"Yes!" As soon as Lu Jiadong's voice fell, Wang Chuanchen, who was sitting next to him, took over the conversation: "Although Lao Qin, you came to the meeting for the first time, there are few people here that you don't know, you can talk about it wherever you do, what is there to be afraid of!"

Wang Chuanchen is right, although Qin Jingbin is the first time to participate in the conference, but most of the people here do know each other, after all, no matter what kind of military industry, it is inseparable from the support of materials, and as an expert of the Materials Research Institute, he has naturally had contact with many military departments, units and individuals and knows each other well, Wang Chuanchen, Qi Junwen, including Lu Jiadong and Hu Qinghua, is not the case.

But it was precisely because all the people present were acquaintances that Qin Jingbin was even more speechless, you must know that the tasks in the hands of others have made more or less great progress, but when he thought of this, Qin Jingbin's already thin cheeks were covered with a faint layer of gray, Qi Junwen, who was sitting opposite him, saw this, his brows couldn't help frowning, and he asked anxiously at Qin Jingbin, who was speechless:

"Old Qin, you are going to say something, you won't be" As he spoke, a hint of ominous omen suddenly flashed in Qi Junwen's mind, and then he straightened up, leaned towards the table, and continued to ask in a tentative tone towards Qin Jingbin:

"Old Qin, there won't be any problems with the cannon steel materials, right?"

Qi Junwen's words were equivalent to saying the voices of everyone in the venue, and as a result, everyone's eyes converged on Qin Jingbin, making him the focus of attention at the venue in an instant, and at this time, Qin Jingbin was suddenly watched by so many people, obviously a little overwhelmed, but after a short period of discomfort, he still shook his head slightly and sighed, and then raised his head to meet the puzzled and puzzled eyes of Lu Jiadong and Wang Chuanchen, and said helplessly:

"Chief Wang, Chief Master Lu! I have failed to live up to your hopes, and the cannon steel materials in my hands have not made any progress at all!"

Qin Jingbin's words were very difficult, and he paused a few times before saying it, but even so, the people present heard it clearly, and then there was an uproar:

"How so?"

"If the cannon steel can't be completed, what's the use of us making progress faster?"

"It's the material that's holding back again!"

"Alas, it seems that this time the progress has been delayed indefinitely."

In the face of the harsh comments at the venue, Qin Jingbin was speechless at all, he had experienced this situation countless times in his life, but every time his face hurt more than being slapped hard, but even so, Qin Jingbin was helpless, you must know that materials research itself is a time-consuming and labor-intensive project, and the requirements for basic industries are very high,

From this point of view, materials science can be said to be a barometer of a country's overall industrial capacity, because of this, in the current situation that the country's overall industrial capacity is relatively weak, it is normal for material science to not keep up, but it is also a very worrying thing.

Often a very breakthrough design, is because the material does not meet the requirements, at least the performance indicators are reduced and reluctantly used, or the progress is greatly delayed; or at worst, it simply cannot be produced and directly faces the dismount, the current new artillery may fall into such an embarrassment, in fact, Qin Jingbin does not want to do this, so he has put a lot of hard work into the research of artillery steel.

Therefore, he soaked in the laboratory almost all day long, even if it was a routine meeting, he could try not to see it without attending it, for fear of interrupting his train of thought and rhythm, but due to various reasons, this new type of steel that can withstand high chamber pressure, high temperature and high burning, not to mention the development of Qin Jingbin, even if the basic way has not been touched!

Seeing Qin Jingbin's ugly face and his head lowered, Lu Jiadong's brows couldn't help but lean towards the middle a few times again, and he sighed in his heart:

"The real problem is finally here" (to be continued......