Yang Fan walked into the first compartment below the deck - the artillery compartment.
The height of this layer from the water surface is about two meters, and the gun window is about 3.5 meters from the water surface. The wave height of Level 5 sea state is 2.5-4 meters, which is barely usable. This is actually very good.
Yang Fan focused on the artillery, and Fu Laoliu quickly stepped forward and introduced Yang Fan. He is now the artillery director. All artillery is under his control, whether it is army artillery or navy artillery.
"Sir, each of these artillery pieces weighs 5 tons and is made of steel. The caliber is 203. There are three types of projectiles. The spherical solid projectiles are made of cast steel and weigh 50 pounds. They can penetrate 1.2 meters of oak armor at a distance of 300 meters.
It can penetrate 0.6 meter thick project armor at a distance of 500 meters. The maximum range can reach 2000 meters."
Yang Fan nodded with satisfaction. This power was enough. Even in the 18th century, the thickness of the top battleship's side above the waterline was only 60 centimeters, and some key parts were as thick as one meter.
Fu Laoliu continued: "The second type is a pointed cylindrical explosive bomb, which uses a cast steel body. The bomb weighs 30 kilograms and is filled with 10 kilograms of chemical fertilizer explosives. It uses a fulminant-mercury impact fuse. Before launching, twist the fuse.
On the projectile body, they are usually stored separately. The number of this kind of shells is relatively small, and they are still being tested."
Yang Fan asked: "Does the mercury mercury fuse have a high fire rate and how reliable it is?"
This type of pointed bullet is not like a spherical solid bullet. If it hits a flexible wooden board, it may penetrate it at close range. However, in many cases, it will bounce away or crack the board due to factors such as distance and angle.
But this will not happen with pointed cylindrical explosive bombs. Because the tip has strong penetrating power, it will directly penetrate the thick oak plank side of the ship and explode inside the ship. Even if it is stuck inside the ship's side, the delayed explosion of explosives will be enough to tear the warship apart.
Make a huge hole.
"Currently, the results of land experiments are good, and the fire rate can reach 90%. However, it is hard to say in the high salt spray environment at sea. We are not sure whether the fuze will malfunction during long-term storage. This requires gradual experiments." Mr. Fu
Six truths.
There is no way around this. The high salt spray at sea corrodes metal very badly.
The washbasins used on the ship are all made of copper. Every time the porthole is opened and the cannon is used, it must be maintained on the same day. Mainly, it is scrubbed with fresh water, then dried and oiled and sealed.
"Well, then let's continue the experiment and strive to do it as soon as possible to ensure that it can have a 90% fire rate even if it is stored on the ship for a long time."
Yang Fan looked at these dark steel cannons carefully. He liked them very much. These cannons were very beautifully made, with inscriptions engraved on them and metal plates with instructions for use and maintenance.
The artillery mount is equipped with small wheels that slide on the slide rails. This is a simple rear seat device. A large waste spring sent from modern times is used as the return mechanism.
When the gun recoils, the spring is compressed and contracted. After reaching the maximum recoil stroke, the spring rebounds and is pushed by the spring to reset the gun.
These springs were originally shock-absorbing springs used on train carriages. The strength of a dozen springs was enough to complete the reset of the artillery.
This greatly reduces the complex pulley and rope mechanism used to pull the gun back on the gun emplacement.
"What type of ammunition is the last type of artillery shell?" Yang Fan asked.
"It's an explosive incendiary bomb filled with chemical fertilizers, explosives, aluminum powder, and sugar. We tried to use white phosphorus, but it was not easy to store and would spontaneously ignite at slightly higher temperatures. So we didn't use it."
"These two kinds of artillery shells are slowly improving, so don't worry. This kind of artillery shells are actually more suitable for the next generation of breech-loaded rifled guns. The powerful solid spherical bullets for front-loaded guns are enough," Yang Fan said.
There are not many guns in the gun warehouse, only 10 on each side. There are 20 guns in total. All of them are heavy guns. Yang Fan thinks that light and medium guns are meaningless. To deal with small boats and arson boats, use the 30 gatling gun effect
better.
Surround the outside of the deck with barbed wire, and install a hand-operated heavy-duty Gatling gun on the commanding heights. You can just jump to the side and sleep. You can't jump over at all. You are either blocked by the barbed wire or caught. Then you are caught by the heavy-duty Gatling gun.
Beat the meat into pieces.
Yang Fan thought for a while and said: "The bow and stern of the ship
Install two light, heartless cannons with rotating mechanisms for ejecting incendiary bombs at close range."
In this era, the distance of artillery battles is generally not too far. Because the accuracy is too poor. At a distance of one hundred meters, the artillery shell can deflect twenty or thirty meters. It can definitely hit the enemy ship at a distance of one hundred meters, but it will be useless if it hits there. So.
, the common artillery battle distance in this era is about fifty meters, even a hundred meters is considered far.
Because there are flaws in the design and quality of artillery and artillery shells. Artillery shells are spherical, and ideally, the center of gravity is at the center of the ball. First of all, with the technology of this era, it is impossible to process absolutely round artillery shells, and it is difficult to control the center of gravity of solid metal to be at the center of the ball.
Heart.
As a result, the cannonball was very randomly affected by air resistance during flight, and rolled randomly in all directions, causing the cannonball's flight trajectory to be very irregular.
For muzzle-loading guns, in order to smoothly load the shells from the muzzle, the inner diameter of the gun barrel has to be slightly larger than the shell, causing so-called "play". As a result, the gunpowder gas behind the shell continuously leaks out when it is fired, impacting the shell and randomly in the barrel.
roll.
The barrel is cast by sandwiching the inner and outer molds. The cast barrel is not necessarily straight. Due to the technological level of this era, the barrel is not smooth and precise. In this way, the cannonball rolls in the barrel more irregularly, and it will face in which direction when it comes out.
It's impossible to predict while flying.
The most important thing is the movement of the ship in the six directions in the waves. Especially in high sea conditions, the ups and downs of the artillery gun are very large. When aiming, light the fuse, and when waiting to fire, the muzzle may move.
I don't know where this shot went.
Use a red-hot poker to pull it out of the fire, push it directly into the fire door, and fire immediately. Although this is more effective, using an open flame in a gun barn full of gunpowder is also an act of seeking death.
.
Yang Fan's artillery shells are better because the boring machine improves the accuracy of the barrel. The inner bore of his barrel is straight. The milling machine cuts the surface of the spherical solid bullets round and smooth. The artillery has a trigger firing device because it has a mercury flash cap.
, install the flash cap on the fire door, and then use the pull cord to control the trigger and hammer.
Once you take aim, pull the rope immediately and you can fire immediately. These devices give Yang Fan's heavy artillery an advantage in naval battles. At the same time, his spring return device also increases the rate of fire.
Yang Fan's explosive bombs also have advantages. Because the black powder propellant chamber pressure of this era is low, the body of the explosive bomb does not need to be too thick. It can be loaded with more explosives. Because the combat distance is close, it does not require too much muzzle velocity, so it has less explosives.
, the chamber pressure also dropped.
/
Please remember the domain name of this book: .Novel about Strange People of the Republic of China