In the 23rd year, the Hanyang Arsenal began to imitate the Ten-Year-Old Grenade Boat. After the outbreak of the Anti-Japanese War, it designed the Type 27 grenade Boat. Since it mainly imitates the Ten-Year-Old Tyne, it still uses the smoothbore launch method, so the range is only 200 meters. Moreover, the grenades are basically still in the Japanese style, and there is no major improvement.

At this time, our army was even more poor and empty. Not to mention that the copper belt on the grenades could not be found, even the steel for the cylinder body was in short supply. There were not many factories in each base area, including factory one and second, which had electric welding equipment and a small amount of welding rods. Therefore, Zhao Hu could only recall how our army used local methods to build grenade tubes and grenades.

The Type 89 grenade tube is made of good steel, with rifled inside and adjustment bolts at the bottom. The old Japanese who have been trained for a long time just glance at the trench in front and shoot down, they will basically be almost the same. Compared with the training of sharpshooters, they are trained with massive ammunition.

Each grenade is no more than a bullet, and its cost efficiency is much higher than that of a bullet. Therefore, the Japanese grenades are all the souls of the army. They are all veterans. Everyone is trained with a large number of grenades, so they naturally play an important role in the army.

Now that Zhao Hu wants to use the method of using the grenade launcher, he cannot use welding machines and other machines. Besides, welding rods are also expensive and are reluctant to use weapons that are not particularly important.

He found a few blacksmiths, burned the rails in the warehouse red, and then used large iron hammers to make solid cylinders. After working for a day, two of them were pierced.

"Old Zhang, this method is a bit slow, not only time-consuming and labor-intensive, but also not efficient. Do you think you are making a big iron block, then building an iron rack to hang the iron block, and then hang it with a wheel. If you don't have enough manpower, use a donkey to pull it..."

Before Zhao Hu finished speaking, Zhang Laoshi slapped his head and said, "Captain Zhao, your method is good, why didn't I expect it?"

Zhao Hu was also speechless. This is the most basic semi-automatic forging hammer, right? If it weren't for expanding a path, we wouldn't be interested in it. Making a steam engine forging hammer wouldn't be very magical.

The forging hammer was made for three or four days. When the huge iron block was lifted high and then fell on the red rail with a "" sound, it suddenly splashed with sparks. Zhang said happily: "Captain, the steel forged by this method must be of much better quality. I heard that the third division used the rails to knock into a plate and then rolled into a grenade can, and it cracked after a few shots!"

Zhao Hu thought to himself, this is the crystallization of the thoughts of our predecessors, how could we take another detour?

The large iron pillar was made, and the lathe was pulled with animal power and took out a fifty-mm round hole. This method was simple and there was no need to rifle. As long as the drill bit could keep up, take it slowly. The stroke was not too long, just 400 mm was enough.

When this enlarged grenade launcher was made, several workers were immediately happy: "Captain Zhao, what we built is a grenade launcher, it is simply a mortar!"

Zhao Hu smiled and said, "You can't say anything, we just want to build a small mortar!"

The cannon barrel was more than 100 millimeters thicker than the eight-nine style, and its weight increased a lot. Zhao Hu returned to the office and began to study grenades. Zhang Laoshi and the others couldn't wait to make a few grenades first by imitating the nine-nine style grenade. It didn't matter if there was no copper. Then he got two air-retaining rings on the bullet body, which could also play the same air-retaining role as the copper belt.

Unfortunately, the effect was not ideal after the small grenade was fired. Only one of the three shells exploded, and the other two were all horizontally on the ground. Zhang Laoshi and the others found that this was because the bullet was not rifled, and after the shells were fired, they all turned around and moved forward. It was all luck to be able to hit the ground!

Just as he was thinking about it, Zhao Hu came over with a small mortar shell. This time, Zhang Laoshi slapped his head again, but he was still a little worried: "Captain, there is no rifle in our cannon barrel. Even if this one is shot, it may not explode!"

Zhao Hu pointed to the somersault grenade in his hand and smiled: "You imitate the Nine-One Grenade, won't you imitate its fire device? Remember to shorten the delay point and just have five seconds!"

"Hey, look at my elm head, and grenades can also be used as shells!"

After the small mortar was released, Zhao Hu installed a tripod to the cannon barrel and installed a dial next to it. The range of the shooting is indicated at each angle. With the bottom medicine bag, it can be used like a mortar.

In addition to the cylinder body, the base plate has also been improved. The base plate of the Japanese army was tiled because they could kneel on the ground and put the grenade canister on their legs to shoot. Our army still lacked this manual launch method, so they could only place it on the ground as a mortar to fire, and simply became a triangle. In this way, the stability increased, but the firing rate was a bit slow.

Next, Zhao Hu started to think about the charge. Grenade launchers, as an important fire support weapon for our army, cannot save materials. The strong gunpowder produced by the arsenal is a bit wasteful when loading in grenades, and it is not enough for mortar shells. On the contrary, this kind of small grenade has less charge and can play a huge role.

The staff of the Arsenal created three types of charge ammunition, namely Zhu Disheng medicine mixed with black gunpowder, yellow medicine and nitroglycerin, and installed straw men on the shooting range for test firing.

"Boom, bang,!"

The three cannons have different sounds. You can tell without looking at it that the first muffled sound came from a black gunpowder bomb, which not only brought up a ball of black smoke, but also had few fragments.

The ingredients of yellow medicine are the same as those of mortar shells, and they are normal to blow, and there is no difference between them and the Nine-One Grenade.

After the last Zhu Disheng exploded, Zhang Laoshi took the result from the end and shouted excitedly: "It's successful, it's successful!"

"How many? How many?" The group of soldiers shouted. They were bored in the mountains all day long. What they were most happy about was that they could make an excellent weapon so that the soldiers could use it with confidence.

"The maximum range is 600 meters, and the fragment is 123!"

The workers rushed over, grabbed the data from Lao Zhang, and looked at it carefully, laughing while watching. This was a weapon that everyone had spent more than a dozen days and nights, and they worked hard to create. If this time fails, they would not eat or sleep well.

Zhao Hu stood aside and smiled with relief. This was not enough compared to our army's later 95 range, but it was not much different from the Japanese army's 89 styles. The key was that this weapon was made by himself. If you want to change the caliber, you can change it. After a while, you can create a 60-mm cannon, which can suppress the Japanese's 89 styles and rub it on the ground!

Director Yang stood aside and laughed, patted Zhao Hu on the shoulder and said, "Xiao Zhao, this time the test was successful, and you and the experimental team members made great contributions. I will send the power to the military region and ask for the merits for you. By the way, you should hurry up and sort out the entire production process. I can give it to the military region so that all the Eighth Route Army troops can have their own small cannons!"

Then, he waved his hand again: "Thank you all for the hard work, I announce that you will have enough wine and meat tonight!"

The originally bare platform was covered with grass and various wild flowers were blooming. The mountain palace, which is a landmark building, was demolished early due to air defense. On the open space of the hall, the soldiers set up banquets and lit bonfires. The members of the art troupe and doctors and nurses showed their crisp singing voices, adding luster to today's victory!

Zhao Hu did not cheat tonight, and the soldiers toasted one by one, so they drank a little too much. At this time, he was holding a teacup and watching everyone sing and dancing, and a sentence of English suddenly came to his ears.

"Zhao, it's so lively tonight, why didn't you notify me earlier?"

Zhao Hu turned around and screamed suddenly: "Bai, Doctor Bai?"
Chapter completed!