On the second day of the eighth month of the first year of Tianqi, Xiong Yanbi was promoted to the right censor, and was granted the title of Prince Shaobao, and was given the Sword of Shangfang, Qilin robes, and 120,000 yuan in silver. He inspected the nine sides on behalf of the emperor, and accompanied the soldiers of two thousand.￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠￠���￠￠�￠��￠￠�

With high expectations from Zhu Youxiao, Xiong Yanbi started to inspect the border town under the escort of two thousand Beijing soldiers. Zhu Youxiao sent Xiong Yanbi to the suburbs, and then went directly to the Royal Military Factory for a inspection.&1t;/p>

As reported by Daming Daily, the Royal Military Factory has produced steel cast cannons, which are actually similar to those of the 19th century bronze cannons.&1t;/p>

The "Royal Steel Plant" established in Cizhou has produced the first batch of steel. Because it can directly obtain molten steel, the proportion of steel elements can be easily controlled. Therefore, low carbon steel cannons can be used to cast artillery, and steel cannons are directly poured through casting.&1t;/p>

The first steel cast cannon shell weighs 3 kilograms (18 kilograms, 6 kilograms per kilogram in the Ming Dynasty), the barrel length is 0.7 meters, the caliber is 83, and the weight is very light, only 9 kilograms. After using low-carbon steel, the weight of the cannon was greatly reduced. In addition to the cannon car, the weight is only 15 kilograms.&1t;/p>

When Zhu Youxiao came to the Royal Military Factory, the gunsmiths were conducting in-depth tests on the performance of the gun.&1t;/p>

"Have the performance been measured?" Zhu Youxiao asked the craftsman in charge of the test after coming to the military factory.&1t;/p>

"Report to Your Majesty, after preliminary tests, this cannon fires live ammunition, with an effective range of up to one mile (5oo meters), and a shotgun can shoot up to two hundred and thirty steps (38o meters)." The craftsman replied.&1t;/p>

"Okay, this cannon is good." Zhu Youxiao praised excitedly. Although the performance seems to be far worse than that of later artillery, such artillery is definitely a very advanced existence in this era.&1t;/p>

Iron cast cannons are all advanced technology these days, and only the UK, the Netherlands and Spain are mastered. At the same time, the Royal Military Factory has also developed iron cast cannons.&1t;/p>

At this time, the Royal Military Factory had already built steel cannons, and the mass of low carbon steel was much better than that of cast iron, which in turn reduced the weight.&1t;/p>

This kind of 3-pound cannon is equivalent to the 4-pound cannon of the Europeans at this time. The level of artillery in the past is based on the weight of the projectile.&1t;/p>

The Royal Military Factory developed artillery at this time, and the artillery was classified according to Zhu Youxiao's requirements. It was divided into five levels: 1 kilogram cannon, 3 kilogram cannon, 10 kilogram cannon, 15 kilogram cannon, and 20 kilogram cannon.&1t;/p>

Because the 3-jin gun developed this time is required to be used for field combat and reduce weight as much as possible, the barrel is relatively short, which in turn causes a relatively short range, with only an effective range of 5 oo meters and a 38 oo meters shotgun range.&1t;/p>

If the gun barrel is extended, the range will be much higher. Because gunpowder only causes the force to push the shell out of the barrel. The longer the barrel, the longer the barrel means that the longer the increase, the range and accuracy will be relatively improved.&1t;/p>

Therefore, with the same dosage, just extend the barrel, the range can be increased.&1t;/p>

"Your Majesty, our craftsmen are now developing ways to make guns by making muskets, and the gun barrel has been built." Yang Qianshan reported on the side.&1t;/p>

"Forging?" Zhu Youxiao was energetic and quickly said to Yang Qianshan: "Take me to see."&1t;/p>

"Your Majesty, let's go here." Yang Qianshan hurriedly led the way and soon took Zhu Youxiao to a shed. The craftsmen were jingling and beating.&1t;/p>

In between, the craftsmen have made several decomposed gun barrels, just like building muskets, which are completely forged, but have a very small caliber.&1t;/p>

"Your Majesty, this is the barrel of a pound of cannon. These sections are just connected together, but no matter how big it is, there is no way, so you can only cast it."&1t;/p>

"It's not bad," Zhu Youxiao nodded. This forging method is a technology that is more advanced than mud mold casting guns. However, the larger the gun, the more it means that water conservancy machinery needs to be obtained by steam engines to be competent. Human forging can only forge small cannons, and it seems to be quite labor-intensive.&1t;/p>

Although the projectile of a jin cannon is lighter, if the barrel is longer, the range and power are still good. These lightweight cannons are most suitable for field combat.&1t;/p>

Obviously it's time to train specialized field artillery.&1t;/p>

Zhu Youxiao then carefully examined the three-pound cannon that had been made. The current shooting is quite complicated, but if you are proficient, it is still okay to shoot one shell in thirty seconds. After all, the cannon is large in size and several artillery soldiers can operate in coordination.&1t;/p>

Such shooting is already very satisfactory in this era.&1t;/p>

After Zhu Youxiao looked at the artifacts that the three-jin cannons equipped with the gun mount. After looking at it, he felt that there was room for improvement, so he said to Yang Qianshan: "In the artillery research project, add the gun mount research to make the gun mount lighter as much as possible, but it does not affect the performance of the artillery."&1t;/p>

"I obey the order." Yang Qianshan quickly wrote down, this cannot be forgotten.&1t;/p>

"Let's build according to this specification for the time being! This kind of three-pound cannon is built first for 500." Zhu Youxiao thought about it and decided that the Ming army must have a huge demand for this kind of field cannon.&1t;/p>

This thing is definitely a powerful tool to deal with wild boar skin.&1t;/p>

The range of live ammunition is indeed lethal for defense fortifications, but it is not very practical to deal with wild boar skin. However, the shotgun is a powerful weapon to deal with wild boar skin! With a range of 380 meters, hundreds of shots can be shot out with one shot. As long as the formation is set in the field, you can blast the wild boar skin.&1t;/p>

Moreover, this cannon is really light, and you can run around with a horse drag. After all, it is only 150 kilograms, which is similar to a fat adult man. If it is two horses, it will be even easier. Even if the cannon weighs several thousand kilograms, it can be transported by horses, but it only takes more than a dozen horses together.&1t;/p>
Chapter completed!