"What is the range of fire and the radius of destruction?" Although Liu Haotian was surprised, after all, the people who came out of the army were very concerned about the firepower killing situation!

Seeing Liu Haotian ask, Wu Tianming, who was behind him, hurriedly replied: "The range of firepower is 40 to 450 meters, and the killing radius is 14 meters!"

"40 to 450?" Liu Haotian nodded: "It's exactly the middle of the maximum throwing distance of the grenade, and the minimum range of 60!"

"Director Liu is worthy of being an old revolutionary who has been on the battlefield, and he can see the value of the gun-mounted grenade launcher at a glance!" As soon as Liu Haotian's words fell, Chen Zhen stepped forward with a smile and responded: "Our original intention in developing this gun-mounted grenade launcher is to fill the gap between the grenade and the mortar, and the surface lethal firepower!"

Liu Haotian nodded, then flipped over the firearm in his hand back and forth, weighing the weight: "This guy is not heavy, looking at the body tube is so thin, and the grenade with such a huge power will not be blown up?"

"Don't worry about this!" Lu Jiadong had a slight smile on his face and said lightly: "We have adopted the principle of high and low pressure on ammunition!"

"The principle of high and low pressure?" Li Ming, who was standing on the side, asked curiously, he was not very interested in the lethal effect of weapons, but he had a soft spot for principles and techniques.

"That's right!" Lu Jiadong continued with a smile: "The so-called high/low pressure principle is that there is a small thick-walled shell charge chamber at the bottom of the inside of the cartridge case, which is used as a storage room for propellant charges, and there are 6 vent holes around the chamber, and the medicine chamber is empty between the cartridge case and the grenade.

When fired, the chamber is a 'high-pressure zone', and the gunpowder gas enters the space of the cartridge case to form a 'low-pressure zone', pushing the warhead out of the barrel. This principle of high and low pressure reduces the pressure on the barrel and reduces the muzzle velocity of the warhead, making the system lightweight, quiet, and does not need to be very thick. ”

"I really want to see this principle you said there!" Listening to Lu Jiadong's words, Li Ming couldn't help frowning and thinking, and after thinking for a while, he raised his head and looked at Lu Jiadong: "Is it that a weapon equipped by the US military a few years ago also uses this principle?"

"Director Li, you're talking about M79!"

"m79?, do you know m79?" Listening to Lu Jiadong's words, Liu Haotian's eyes couldn't help but widen, his pupils shrank, and he looked at Lu Jiadong with a shocked expression.

"Hehe, I've met once or twice when I was in the Assistance Mission in Country B!" Lu Jiadong smiled perfunctorily, although his experience in the Assistance Mission in B was not shown in the personnel file, but from his skills and skills, coupled with Li Ming's confirmation, now Lu Jiadong's affairs in the Assistance Mission in Country B have long been known to everyone and deeply rooted in the hearts of the people, so when Lu Jiadong finished speaking, Liu Haotian couldn't help but nodded!

Seeing Liu Haotian like this, Li Ming was also puzzled, looked at Liu Haotian and asked curiously, "What's the matter?" Old Liu, do you also know M79?"

Liu Haotian nodded: "I know a little, but I don't know much, I was a soldier in the north back then, and I haven't been to the front line to aid Vietnam, and M79 has also heard from my comrades-in-arms, and it is said to be very powerful!"

"That's right! I have seen the introduction of the M79 on foreign-related materials before, and the principle of ammunition is the same as the gun-mounted grenade launcher developed by Xiao Lu!" Li Ming turned his head to Lu Jiadong and looked up and down: "I really didn't think that we knew anything half-understood, Xiao Lu actually understood it so thoroughly, and it was really a rare talent in our Guixi military industry!"

"Director Li is right, we have Xiao Lu in Guixi, and we can straighten our backs in the whole ** work system!"

Listening to Li Ming and Liu Haotian's unsparing praise, Lu Jiadong couldn't help but respond with a smile: "I just did my best, not as exaggerated as the two leaders said!"

"Okay! Very good! Don't be arrogant or impatient! If our Guixi military industrial system wants Xiao Lu to be like this, then let's not say that we will be among the best in the country! Lao Li, am I right?"

Listening to Liu Haotian's words, Li Ming smiled and nodded frequently: "It makes sense, it makes sense!"

Lu Jiadong looked at this posture and knew that if it went on like this, the two of them had to praise themselves to the sky, so Lu Jiadong quickly changed the topic:

"Director Li, Deputy Director Liu, our gun-mounted grenade launcher is now in the testing stage, but you can also see that the equipment of our factory is limited, and some important tests cannot be done at all, so"

Although Lu Jiadong did not finish speaking, Li Ming and Liu Haotian knew very well in their hearts that in addition to the development and production of a weapon and equipment, the most important thing is the performance test of the equipment.

Therefore, Lu Jiadong is not wrong in what he said: although the gun-mounted grenade launcher has been developed, it can only be used for simple shooting tests based on the conditions of the Wanshan Factory, but it cannot be done for further testing, let alone the Wanshan Factory, and even the entire Guixi Province does not have a special test site for surface killing weapons.

So Li Ming and Liu Haotian both frowned after Lu Jiadong said this, and just when everyone was at a loss, Wu Tianming, who was sorting out the guns on the side, suddenly spoke:

"I remember that there were similar test sites in the G Military District!"

"G Military Region?" Lu Jiadong looked at Wu Tianming suspiciously!

"That's right!" Wu Tianming said, then put the gun into the gun box and pressed the lid: "It's right next to my original unit station, and we still share some of our shooting range with them!"

After listening to Wu Tianming's words, Liu Haotian seemed to suddenly remember something, and asked Wu Tianming with an eager face: "Which unit are you from?"

"Assault Division!" Wu Tianming replied without thinking.

"Is your division commander's name Guo Qingshan?"

"That's right, do you know him?" Wu Tianming looked at Liu Haotian strangely.

"Haha, it's not just acquaintance!" Listening to Wu Tianming's words, Liu Haotian couldn't help laughing: "When I joined the army, this kid still had to call me an old squad leader, we fought from the northeast to Hainan Island, all in the same army, until the end of the Korean War, I was left in the north, and he was transferred to aid Vietnam." ”

"Lao Liu, is that comrade-in-arms you just mentioned this Guo Qingshan!"

"That's right, it's him!" Liu Haotian smiled at Li Ming: "Although we haven't seen each other for so many years, the two of us still correspond from time to time and keep in touch! That's why when Xiao Wu said this just now, I remembered that it was a coincidence that their troops also tried to install Type 78 assault rifles."

I'm going to pay a return visit in two days, and I'll go to see this old comrade-in-arms by the way, and in that case, I'll bring this grenade launcher with me to see if he can talk to the comrades at the test site and test this new weapon for us!"

"Absolutely!" Liu Haotian's voice just fell, and before the people present could react, Wu Tianming next to him shouted excitedly:

"When I was engaged in invention and creation, I could borrow their equipment for testing, and if our division commander spoke, it would be a piece of cake, absolutely no problem!"

"Okay, don't tell your ugly things, you don't think you have been criticized enough!" As soon as Wu Tianming's words fell, Chen Zhen, as an elder, pretended to be angry and disciplined Wu Tianming.

Wu Tianming listened to Chen Zhen's words, instead of getting angry, he scratched his head with his hand, and said with a smile: "It's not because I'm too happy!"

Wu Tianming's words expressed everyone's thoughts, although the Wanshan Factory had built a gun-mounted grenade launcher, but it lacked the necessary testing equipment, could not obtain the actual parameters of the real weapon, and it was impossible to get batch equipment as standard equipment.

Now, Liu Haotian can send the grenade launcher for testing through other means, which is tantamount to great news for the Wanshan Factory, not only the Wanshan Factory, Li Ming, Liu Haotian, the leaders of the provincial department are also very happy, after all, the Wanshan Factory belongs to the jurisdiction of the Guixi Provincial Department, and the equipment produced by their factory has been recognized by the troops, and the face of the higher-level department is naturally very bright.

Because of this, the people present will be so happy, of course, as a member of the crowd, Lu Jiadong is also very happy, after all, the gun mounted grenade launcher can be tested in the next step, which means that this weapon and equipment are one step closer to the finalized installation, because of this, Lu Jiadong became interested in this assault division commander Guo Qingshan, so he inquired with Wu Tianming, and then he knew that this assault division commander is not simple.

Guo Qingshan, like Liu Haotian, was a veteran of the War to Resist US Aggression and Aid Korea, but after the end of the war, Guo Qingshan did not stay in the north like Liu Haotian, but went all the way south into Vietnam to participate in the struggle to aid Vietnam to resist US aggression.

Although Guo Qingshan's deeds are little known, as the eyes and ears of the whole army, the US troops who participated in the war at that time gritted their teeth and organized their own special forces to strangle our army's reconnaissance detachments many times, and Guo Qingshan was also fortunate to fight with the US Delta, Navy SEALs and other ace units in Vietnam.

However, Guo Qingshan, with his excellent technical and tactical skills, rich battlefield experience and excellent command ability, did not let the opponent take advantage, but made them suffer a big loss, so that Guo Qingshan's name was blacklisted by the US army, vowing to see people alive and dead to see corpses, but every time he came and went home!

It is precisely because of such an outstanding record that Guo Qingshan did not become a professional like Liu Haotian in a few years, but stayed in the army.

Not to mention slapping the table with his superiors, it is not impossible to fight, in wartime, this temper can be regarded as bold and resolute, but in peacetime, he is no longer welcomed, which also causes Guo Qingshan's promotion to be very slow, and most of his old comrades-in-arms in the army have become army commanders, or even military leaders, and he is still a division commander.

In this way, after some discussion, Wanshan Factory sent Lu Jiadong and Wu Tianming to follow Li Ming and Liu Haotian to the provincial capital with two sets of guns and grenade launchers and auxiliary ammunition.

When the vehicle arrived at the assault division, division commander Guo Qingshan personally greeted him at the entrance of the division department, and when he saw Liu Haotian, he hurriedly stepped forward:

"Oh, old squad leader, I can be regarded as looking forward to you!" When the two shook hands cordially, Lu Jiadong appeared in front of him, Guo Qingshan looked at the young man in front of him, and asked suspiciously:

"This is"

"Hello, I'm Lu Jiadong!"

PS: Thank you for the tips of book friends Tianhai Xiangyun, hzwangdd, Xuanyuan Wu, mengyan0831, doraemon1234, book friend 150517070517710, a green pine tree, and Ah Hu 6688, thank you for your continued support to Yuzu.

Finally, I still ask for a collection and recommendation, Yuzu really hopes that brothers and sisters will support Yuzu, collect more, recommend more, Yuzu thank you brothers and sisters!

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