"Don't pick it up anymore. Hurry up, pack your things, get on your horse and go back. The enemy's troops are here." Wang Hao shouted.
The boys who were looking for souvenirs immediately dispersed, and those who were beheading were beheaded, and those who were leading the horses were leading the horses.
They ran back in a swarm.
At this time, trenches had been dug on the hillside.
The depth of one meter, plus the excavated soil, was beaten into a parapet of fifty centimeters high. A U-shaped ring fortification was formed.
The engineers were exhausted and dug 75,000 holes outside.
On average, one person digs out 2,500. Although it is just a matter of stepping on it, Luoyang shovel can dig out one, but it is not easy for one person to step on 2,500 times.
A layer of barbed wire must be laid ten meters in front of the formation. By the time it was all done, I was basically exhausted. They all retreated to the back to rest.
The artillery also set up emplacements for five three-pound guns.
According to the artillery drill, straw bags were filled with soil and built into a one-meter-high parapet to protect the artillery ammunition and personnel. Prevent enemy arrows from being thrown.
The artillery carried a total of five three-pound cannons. Because of their light weight, these cannons could be towed by a single livestock draft horse, or pushed and pulled by humans.
If it is made of bronze, it is usually about 500 kilograms. Yang Fan's three-pound cannon is made of cast steel, which is stronger and lighter than copper.
Because it is strong enough, the barrel wall is made thinner, further reducing the weight.
In addition, in the Roses and Guns group, netizens asked a professional to optimize the design and successfully reduce the weight to 300 kilograms.
And referring to the Japanese Type 92 infantry gun, the entire gun can be disassembled. After being disassembled, each component weighs no more than thirty kilograms and can be carried by one person. The heaviest barrel can be carried by four people on wooden poles.
It can be carried on horseback or carried on people's shoulders, which greatly enhances mobility.
This master of design is so awesome. He specifically stated that this was mainly due to the needs of mountain combat.
If Yang Fan went to Liaodong to fight slaves in the later period, his troops would really need light artillery that could operate flexibly in mountainous and forested areas.
Historically, the range of this type of gun was generally around 480 meters.
Because Yang Fan's cannon is made of steel, its strength is increased, the barrel is lengthened, it can be charged with more powder, and its range is increased to 750 meters.
In order to improve the range, many techniques were adopted, including installing lead belts on top of spherical cast iron solid bullets, which were used to deform and block the gap between the shell and the barrel during firing to prevent air leakage.
On the shotshells, small steel balls collected by Erluzi from modern scrap collection were used.
One shot of shotgun contains a thousand small steel balls. When launched, it can create a 300-meter-long fan, which can be used to sweep across cavalry and infantry.
In order to increase the firing speed, the ammunition was directly wrapped in silk to make fixed ammunition. When using it, the artilleryman just takes it out of the wooden box, without weighing the gunpowder, and stuffs it directly into the muzzle.
There is no need to adjust the range, because it is a short-range gun. Generally, it hits enemies within 500 meters directly.
If you must adjust the range. Then according to the need, use several small propellant packets and adjust the muzzle pitch angle at the same time to accurately adjust the range.
Silk was not cheap in Ming Dynasty, but silk had one advantage. It is completely flammable and leaves very little residue.
If the ammunition is packed in paper, the barrel of the gun will need to be cleaned after about thirty shots. The barrel of the artillery gun needs to be cleaned about fifty times.
On a rapidly changing battlefield, ceasefires are no joke. The longer it takes to clear the chamber, the more beneficial it is to the battlefield.
In order to increase the rate of fire, there is another obstacle, which is the overheating of the barrel.
On the battlefield, if there is enough ammunition, it is common for the artillery to fire the barrel red when the enemy is in an emergency.
Generally, for safety reasons, shooting must be stopped. There are two reasons. It's all related to the explosion.
One is that an overheated barrel will ignite the propellant, rendering it unusable, or even causing the barrel to explode because the propellant does not burn linearly and gradually.
In addition, when the barrel turns red, the strength of the metal decreases significantly, which may cause the barrel to explode due to the decrease in strength, or the barrel may become soft and deformed, changing the ballistic shape, causing the shell to get stuck and explode.
No matter which situation occurs, such a cannon will be useless.
One of the methods Yang Fan took was to use steel with a higher melting point to cast the barrel.
The other is to learn the Maxim water-cooled machine gun method and use liquid cooling.
That is, a thin iron sleeve is added to the outside of the barrel. There is a cavity in the middle into which water can be filled. The barrel is then kept cool by the evaporation of water.
The sleeve and water undoubtedly add weight, but it’s a trade-off. Low-intensity combat demolition. Load it up for high-intensity combat.
The master of design even considered the situation of fighting in the cold northern areas, where there is no water, only ice and snow. It is designed with a huge water inlet funnel mouth, which can be used to shovel ice and snow directly in.
The artillery was even required to bring a set of Luoyang shovel pressure well drilling equipment. Easy to get water at any time. This also makes it easier for the troops to use water. After all, both humans and horses need to drink water. Water is also needed for cooking, washing clothes, and bathing.
In order to avoid waste, such as fighting in the Gobi desert, the master also designed a steam duct and condensate water box. This is also a replica of the equipment of the Maxim machine gun. It is used to reduce the evaporated water vapor into water through the tube condenser and recycle it.
Peng Shu is an artillery instructor, and today is the first time he has led an artillery squadron into battle. This artillery force, like An Sanxi, is an officer training team. It's full of officer seeds.
It was their first time to participate in the war. They were familiar with the doctrine and drills over and over again, for fear that they would make mistakes that they shouldn't make.
Today, Sancha Gang has become a well-arranged preset battlefield according to Yang Fan's instructions, waiting for the enemy to come.
From bottom to top, the first level is the outer hole, specially designed to prevent the enemy's horse legs from being broken.
The second layer is the naturally formed Tur River, which can effectively slow down the impact speed of enemy cavalry. The engineers also secretly laid a layer of barbed wire in the river.
This sinister idea was thought up by Hou Shengwu, the captain of the engineering team.
The third level is the trenches and earth breastworks, where the musketeers take turns firing in two levels.
The fourth level is the emplacement built by the artillery team with sandbags. Because the muzzle of the gun is higher than the infantry in the trench, it can fire at will without worrying about hurting the infantry.
On the fifth floor, which is the top of the hill, a command post was built with sandbags and covered with a tarpaulin. An Sanxi and Huang San commanded here. It was condescending and had a good view, allowing them to observe the surrounding situation in all directions.
"Here we come. It seems that there are more people than we estimated. It's not two thousand, but about 2,700 or 800 people." An Sanxi put down the telescope and said.
Huang San nodded and said: "There are some discrepancies in the intelligence, which is a common thing on the battlefield. We have already digested this. It's not a big problem."
In the distance, on the horizon, Irgun Taiji came from a distance with a large group of people.
He knew that there was nothing but a flat plain in Sanchagang except for a small hill. In his opinion, there was nothing to fight in this battle. The cavalry simply pushed over and trampled these arrogant bastards to death.
Alsileng looked at the hill in the distance and frowned suspiciously.
