Today's second update, please collect!

*******************************************************************

Yang Tianfeng was also very depressed, his original idea was good, but then he thought about it, if it was transformed into a large-caliber sniper rifle, the recoil would be too amazing, even if it was a thick pad, it would still be unbearable. It seems that it will be difficult to convert it into a grenade launcher.

"This gun is good, but it's a pity that the recoil is too great. I have some ideas, so I'll have to trouble Mr. Zheng. Let's build a silencer first. ”

Zheng Ran blinked and thought about it, and didn't dare to pack the ticket, but left room and said, "I'll try it!" However, it is not guaranteed. ”

"It's not about trying, it's about doing it well. Because-" Yang Tianfeng smiled, turned his fingers in a circle, and said vaguely: "The drawings will be available soon, and there is no difficulty for Mr. Zheng to make them according to the drawings, and he can even make several in a day." ”

Drawing? Zheng and Sun were very puzzled, but Yang Tianfeng never mentioned it, but diverted the topic and began to talk about grenade launchers and heavy mortars again.

At the end of World War II, the Germans added a folding stock to a 27mm flare gun and fired a small grenade over the shoulder. In the early sixties of the twentieth century, the U.S. military used the M79 40 mm grenade launcher, which resembles a hunting rifle in shape and structure, also known as a howitzer.

From the point of view of manufacturing process, the howitzer can adopt a high and low pressure firing technology similar to a grenadier canister, even if the gunpowder is fully burned, the energy can be better utilized; It can also make the pressure in the launch canister lower, reduce production requirements, and even can be made of light metal to reduce weight.

Therefore, the difficulty of extraction lies in the manufacture of custom-mounted grenades, which require relatively fine machining, but it is not a difficulty that cannot be solved and overcome.

And once the troops are equipped with this kind of weapon that is light in weight, has little recoil, can shoot against the shoulder, and is curved and flat. It also makes up for the gap in firepower between grenades and mortars, and the combat power can be greatly improved.

On the battlefield of resistance against Japan at that time, the infantry support weapon that the Japanese army used very widely and had a large amount of equipment was grenadiers. Usually, each infantry squad was equipped with a grenadier group, equipped with two grenadiers, and each squadron was equipped with a total of six grenadiers, the same amount of equipment as the light machine gun, which shows the importance of the Japanese army's grenadiers.

Because of its lightness and good mobility, the grenadier can always accompany the Japanese troops and provide fire support at any time in various special geographical environments of the Chinese battlefield. The subsequent Pacific War also proved that grenadiers were equally suitable for jungle environments. So, in many cases, the Japanese relied even more heavily on grenadier fire than on light machine guns.

Despite the fact that the Japanese grenadier was a rather creative light infantry support weapon, it also had a lot of flaws. The first is that its operation of firing and adjusting the range is much more cumbersome than that of a mortar and is more dependent on the experience and level of the operator. And the combat rate of fire is generally inferior to mortars, and the accuracy and power are also inferior to mortars.

On the other hand, the structure of the grenadier shell is more complex than that of mortar shells of the same caliber. Under wartime conditions, the cost-effectiveness ratio is higher than that of the latter, so the scope of use is not as extensive as the latter. As a result, few countries other than Japan and China have adopted it.

On the battlefield of China's resistance against Japan, because of the limited technology and production level, there is a lack of ability and ideas to innovate and transcend. The most commonly used method is to develop similar weapons on the basis of Japanese-style weapons, so as to achieve the goal of "treating others the way they want to be treated."

Because of its relatively simple production and manufacturing, the grenadier is relatively simple, whether it is the arsenal of the Nationalist Government, or the small workshops of the Eighth Route Army and the New Fourth Army, a large number of imitations have been carried out and equipped with troops.

There are not too many choices, which is naturally the above situation, but Yang Tianfeng wants to go beyond it directly, put aside the grenadier canister, and directly equip a separate grenade launcher. No matter in terms of carrying, use, range, rate of fire, and power, the 40mm grenade launcher should be able to outperform the Japanese grenadier.

The principle is very clear, and it is more similar to the combination of gun grenades (super-caliber, rifles fired with empty cartridges) and grenadiers (the principle of high and low pressure) at that time. Sun and Zheng naturally understood that when the drawings were in place, they were very sure that they would be manufactured.

According to the current technical capabilities of the arsenal, it is not very difficult to solve the problem of starting from scratch. However, it is not so easy to achieve a major breakthrough in quality and quantity and to achieve the goal of equipping a large number of troops.

As for heavy mortars, Yang Tianfeng proposed two specifications: 100 mm and 120 mm. This is already the limit of a person's shoulder, and it is no longer realistic to increase the caliber.

According to the information in Yang Tianfeng's mind, if the 100mm or 120mm heavy mortar can meet the design requirements, the shells using long-range charges can compete with the main artillery of the Japanese army, the 41-type 75mm mountain gun (with a range of 6,000 meters), and exceed most of the Japanese army's wing-level artillery. And as an indirect firepower, it may be able to play a surprising role in winning.

In fact, for Yang Tianfeng, it is difficult to create new weapons, but it is even more headache to cultivate and train technical troops to use new weapons.

Taking the artillery of China and Japan at that time as an example, the gap in technical and tactical level was not much worse than that in equipment. Although the Japanese artillery is at the bottom of the great powers, it already has the ability to operate on the map indirectly, and can observe the target through the forward observation post, find the coordinate point of the target on the map, and report the location of the target to the artillery unit by radio, while the artillery unit does not need to directly observe the target to calculate the operation on the map and shoot directly.

As for the Chinese artillery, until 1950, it was actually mainly based on direct aim within the field of view. During the Anti-Japanese War, only a few elite troops mastered the same indirect aiming and shooting capabilities as the Japanese army. Most of the Chinese officers could not read the map, let alone the illiterate level of the soldiers. Therefore, it is difficult to organize artillery observation posts with the ability to range, topograph, and interpret maps.

Artillery units do not master the ability to aim indirectly, which is very lethal in combat. This meant that the Chinese artillery could only strike at pre-demarcated areas, and it was difficult to deal with Japanese troops appearing in the other direction, and it was also difficult to organize an effective Xu Jin barrage to cooperate with the infantry attack during the attack.

Therefore, Yang Tianfeng's thirst for intellectual youth is extraordinary. Not only are all fighters who have graduated from elementary school or close to elementary school in the army gathered for training, but they are also recruited through various channels. As for cultural study in the military, it is difficult to produce qualified intellectual youths without a year or two.

The arsenal will be the material foundation for Yang Tianfeng to achieve his career and develop his ambitions, and it is one of the places he attaches the most importance to.