Half a year has passed since the bloody battle in Liaodong, and the battleships and cruisers that should have been launched in the spring have long been delivered to the navy, and this year's production plan has doubled. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 ｉｎｆｏ

This was entirely due to the capture of the Jiannu lair and the possession of most of the wealth of the entire Houjin Kingdom as his own, and the final statistics were as high as nearly 20 million taels of silver, and the net profit was as much as 15 million taels after the cost of sending troops.

With a large amount of money and hundreds of thousands of manpower, of course, these must be converted into combat effectiveness, so the budget planned to be invested in the navy this year is eight million taels of silver, and Zhao Shimin's team is now building warships of various specifications.

Artillery, gunpowder, all-steel armor, flintlock rifling guns, steel pulley crossbows, pulley bows, Megatron thunder, and all kinds of shells are all being produced at full capacity, because the fierce battle at the end of last year has basically exhausted the ammunition, and we have to rebuild our strength, and there will be a big war in winter.

In order to adapt to mountain warfare, the four-pounder field gun also came into being, this kind of artillery and the six-pounder, twelve-pounder and other guns that have been finalized, the same front-loading steel cannon with barrel hoop, there are three rifled guns, can fire solid, flowering and scattered shells.

The biggest advantage is that the weight is only more than half of the six-pound field gun, the heaviest gun body is only 400 catties, and the total weight is less than 800 catties, which can be flexibly disassembled and assembled, so that the mobility of the artillery has been strengthened.

The process of Huangjiagang's mold casting cannon has been improved a lot, and the quality has been improved by another level. This is Huang Sheng's discovery that the steel mold casting process of the arsenal is becoming more and more mature, and he roughly knows a hollow casting process.

The wisdom of the working people is endless, and these experienced masters got new ideas, experimented at any cost, and finally fully mastered the 1860 American Civil War. This revolutionary process invented by Rodman.

The specific method is to cast the cannon around the core, and the inside of the core is cooled by running water, which is a method to harden the inside of the barrel first.

When the outer metal cools, it shrinks inward and continues to pressurize the hardened inner layer, so that the steel cannon body obtained by operation is the most dense inside, and the advantage is that the explosive force of the propellant will be absorbed by the entire thick metal layer around the gun chamber, instead of expanding outward layer by layer.

The greatest significance of the new casting method is to greatly reduce the scrap rate of the barrel during casting, greatly improve the yield rate, and reduce the casting cost of the gun.

This process greatly increases the life of the barrel of the gun and reduces the cost of use, especially when casting heavy guns.

Because the Huang family encouraged technological innovation and provided no upper limit on financial support, the skilled masters were thinking and putting their ideas into practice, too many products were updated, and the base of the gun was constantly improved.

A large number of qualified springs are used to cushion recoil, and the artillery of the Huang family no longer needs to be like the artillery of this era, and it is necessary to reset and re-aim the gun that has jumped out of shape on the spot when firing a shot, and the gap between re-firing is shortened by more than a minute.

The guns on the new warships are all equipped with buffer springs, the hit rate of shelling and the rate of re-fire are doubled, the damage to the hull is sharply reduced, and the service life of the warship is increased. Later, when encountering Xiyi's fleet and their ship-to-ship battle, there was no doubt that they would win the battle in artillery fire.

Of course, Huang Sheng, the steam engine, a big killer that can bring about the industrial revolution, could not let go, and the school's scientific research team and the steel mill, military factory and other great craftsmen formed a joint research team to study and test several sketches drawn by the artist.

Huang Sheng knew the working principle of the steam engine and the role of the boiler, but he couldn't remember the drawings of the early steam engine and boiler, but he just wrote down the working principle and drew the general appearance and workflow of the equipment that needed to be manufactured.

Huang Sheng's sketch depicts the "Lancashire boiler", a horizontal atmospheric steam boiler. The advantage is that the capacity is larger, it can burn coal, firewood, straw and other fuels, can provide a stable flow of steam, it is an atmospheric boiler, unless it is operated brutally, and the probability of explosion accidents caused by normal use is very low.

However, it cannot provide high-pressure steam, so it is relatively weak in evaporation power and limited in use. However, its technology is simple, and it is a mature technology that has been demonstrated by later generations and has been used until modern times, and it should not be too difficult to manufacture.

The key to "Lancashire boiler" is that the material requirements are not high, ordinary low-carbon steel plate is enough, and it is no longer an obstacle to the Huang family, which is improving the quality of steel, and after several attempts to improve, there should be no problem with the possibility of becoming a product.

To be able to solve the boiler, the manufacture of the steam engine is equivalent to half of the completion, the key component of the steam engine is the cylinder, and the master of the Huang family has produced thousands of artillery pieces of different calibers to equip warships and the army.

The use of large hydraulic boring machines, milling machines, smooth barrels, milling and rifling technology should be unique in the world, with these mature technology and equipment, the manufacture of cylinders should be twice the result with half the effort.

It's a pity that Huang Sheng can only roughly know the principle, he clearly understands and personally sees the manufacture of heating boilers in later generations, considering that no seamless steel tubes have been produced yet, and there are no products like boiler tubes in later generations.

Therefore, let's start research in line with the current reality, and then open the golden hand to point out the idea after these technologies are mature, so that the master craftsmen can upgrade the boiler and steam engine.

Although Huang Sheng knows little about the data, and he doesn't know much about the size ratio, this is enough, with the wisdom of the Han craftsmen, he has obtained an accurate research direction, and there is labor, materials and financial support regardless of the cost, and the results are just around the corner.

Nowadays, the quality of Huangjia steel tends to be stable, and the conditions for manufacturing boilers and steam engines by riveting traditional methods are ripe, considering practicality and safety, the first generation of boilers is not suitable for high pressure, and it does not matter if the thermal efficiency is not high.

Zhao Shimin's all-steel warship with a research nature is also about to be completed, the ship is very small, maybe fifty or sixty tons, the ship plate is riveted with four or five millimeters of tinned steel plate, if it is successfully launched and passed the sea trial, the shipbuilding team will gradually increase, and the next goal is to build a 120-ton ironclad ship.

Zhao Shimin's step-by-step and down-to-earth scientific research attitude made Huang Sheng greatly appreciated, the navy is the first element in the world, and Huang Sheng has always spared no effort to support it.

At present, more than 1,000 cadets are studying, not only ignorant teenagers, but also many officers at all levels who have come to gild, and with the development of the times, regular training of in-service officers will become a common practice, sharpening knives and cutting wood.

More than half of the naval cadets in the military academy have reached 800, and there are also 600 army cadets, and most of the teachers here are outstanding teachers selected from the Huangjiawan Island School, many of them have actual combat experience, and most of them are officers and men of the navy and army who have been wounded and retired with honor.

There are also dozens of Xiyi who are the most eye-catching, and they have to serve the school well regardless of whether they are willing or not.

They have rich sailing experience and belong to the level of old pirates, and their actual combat experience is even more unambiguous, even more experienced than the Huang family teachers, because they have an experience that the Huang family teachers can't match, and they may not be able to experience it in their lives.

This experience is the most temperable: they were all defeated by the Huang navy and finally obediently became prisoners, and since then they have lost their freedom, selling their labor for rations and fresh water to survive.