There was one day left before the time travel conference was held, and Shen Daxing found Zheng Jiang and Zhang Guodong again. "Two presidents." Shen Daxing rubbed his hands with excitement, "If you two are free, come with me to my place to have a look. I have a good thing that I would like you to have a look at." Zheng Jiang raised his head and smiled: "Daxing, what? It¡¯s time to play with antiques, and I¡¯d like to ask you whether you got Yuan blue and white or Yongle porcelain.¡± ¡°I don¡¯t have that hobby,¡± Shen Daxing replied, ¡°You two will find out after you go and take a look.¡± He stood up and asked: "Then let's see your good stuff, but what did you come up with? I think you are very excited." "Actually, it's nothing. We made a grenade." "You said. What, you made a grenade?" Zheng Jiang had no reaction, but Zhang Guodong, who was a soldier, was shocked by Shen Daxing's words. The grenade grenade was once widely used by the Japanese army on a large scale in the anti-Japanese battlefield of World War II. Each Japanese infantry squad was equipped with one or two grenade grenade teams. The Japanese grenade is essentially a light mortar. Its main characteristics are a large firing angle, a curved trajectory, and a short range. It is mainly used to kill enemies hiding behind fortifications and concealments or to kill enemy forces at long distances. It has good killing effect and is easy to operate. It can be carried by an individual soldier and move with the front-line infantry to support the front-line infantry. It is highly concealable because it can be carried by a man and can be fired from behind obstacles. The grenades are carried in special ammunition pouches. One ammunition pouch can carry 8 grenades, and a two-person grenade team can carry 16 grenades. There are two types of grenade launchers of the Japanese army. The grenade launcher of the Taisho decade has a caliber of 50 mm, a weight of only 2.6 kg, and a range of 175 meters. Its design purpose is mainly because the Japanese military hopes to fill the firepower gap between medium-sized mortars and individual grenades, and at the same time, it can greatly enhance the firepower of infantry detachments (equivalent to squads in the Chinese army). However, the performance of the Taisho Ten-Year Type was poor. Its range was too short (less than 200 meters), which prevented soldiers from using it at a safer distance. In addition, its accuracy was also poor, which made it quickly replaced by later generations. Replaced by Type 89 grenade. The Type 89 grenade is an improved version of the Taisho decade, with a caliber of 50 mm, a full gun length of 413 mm, a barrel length of 260 mm, a full gun weight of 2.7 kg, a barrel weight of 1.6 kg, and a barrel foot length of 170 mm. The barrel plate weighs 1.1 kg, the foot plate is 60 mm high and 67 mm wide. The maximum range is 700 meters and the effective range is 500 meters. "Chairman Zhang, please don't get excited yet." Shen Daxing said, "The grenade we have developed will never be the same as the one during World War II. We haven't developed the flash cap and primer yet. In fact, we have just developed a "A small mortar." Zhang Guodong said with a smile: "Well, you scared me, I thought you had achieved rapid development." Shen Daxing explained: "But Chairman Zhang, don't underestimate it. We have tested this thing. Although it is not as powerful as our six-pound cannon, it can hit parabolas and still has a certain effect. The key is that it requires fewer people and is cheap to build. " Zheng Jiang also stood up: "Daxing, let's talk about something else. It¡¯s no use, take me and Chairman Zhang to see your mortar.¡± The two senior officials saw the grenade Shen Daxing talked about at the Military Research Institute. This small mortar has a caliber of 8 cm, a gun length of 90 cm, an adjustable bracket, a total gun weight of 11 kg, and a shooting elevation of up to 45 degrees. Zhang Guodong looked around the grenade: "How far can this thing shoot? How many people can operate it? What kind of shells are used?" Shen Daxing pointed to the sample on the ground and replied: "After testing, the range is not too far, about 180 It's about 200 meters long. But this thing is light and doesn't require horses. It can be operated by three to four people. If you are skilled, you can fire 2 to 3 rounds per minute." "As for the cannonballs," Shen Daxing picked it up from the side. A sample of artillery shells, "We are going to use all explosive shells, and the killing radius can reach 3 meters." Zheng Jiang didn't understand these things very well, and interjected: "So this thing is useless, the range is not as far as a rifled gun, and the killing The radius is not very large, so what can be hit with it? " "Chairman Zheng, you don't understand." Shen Daxing explained, "People from your military have approached me several times and now Tao Min is very good at using it. Trenches and shield vehicles are difficult to deal with without mortars, so we did this. You don¡¯t know, it took a lot of effort.¡± ¡°Daxing, you don¡¯t have to complain, just report the parameters to the Military Commission, and the Military Commission will study it. A decision will be made later. At present, we must work hard to produce rifled guns and new rifles, and the spring offensive is about to begin. "Zhang Guodong does not have much confidence in this mortar, because both in terms of range and power. Too small. The main function of mortars is to clear enemy firepower points, especially machine gun positions, but the problem is where are the machine guns now??If you use it to deal with artillery or cavalry charges, it will definitely not work. The 180-meter range cannot even keep up with the three-pounder. But Zhang Guodong was not willing to dampen Shen Daxing's enthusiasm, so he still praised him a few times. "I know I won't delay going to Vietnam." After Shen Daxing finished speaking, he stopped the two people who were about to leave. "You two, I have something to report to you two. Ye Sunquan called me. Report, I want to resign. "Why, isn't he doing a good job?" Zheng Jiang stopped and asked. "Actually, he has had this idea for a long time." Shen Daxing said, "Now the Ye family is considered a wealthy family in the entire Qiongzhou Prefecture, and their three sons are all promising. Old Ye wants to go home to have his grandson. He now "My thoughts are all on my grandson." "Then how did you respond?" Zhang Guodong asked. "I refused directly." Shen Daxing said with a smile, "Lao Ye also signed a confidentiality agreement. Even if he leaves the Military Industrial Research Institute, he cannot engage in other jobs. But I promised him that I will not give him any other jobs in the future. He has too many tasks to do, so just come and take a look every day when you have nothing to do. In fact, Lao Ye hasn't done much in recent years. Our current arms research and development is becoming more and more modern. He doesn't understand anything at all. We are mainly recruiting students who have graduated from Xuetang and Wanzhou Academy. I am afraid that I have no use for him, so I submitted this application." "Then follow your arrangements. "Okay." Zhang Guodong warned again, "But people like Ye Sunquan must be taken care of and don't let anyone feel like they are in trouble."