Chapter 511 (2/2)

In the original historical time and space, the improvement of the new comen steam engine was completed in 1765. However, because the materials for making the cylinder did not meet the requirements, and the technology for making the cylinder did not meet the requirements, the improved new comen steam engine has not been widely used.

It was not until watt and John Wilkinson met in 1774 that the processing technology of steam engine cylinder was solved.

Speaking of John Wilkinson, we have to mention the world's first boring machine that can precisely bore large caliber gun barrel. This kind of boring machine is made by John Wilkinson. And he also used this technology to make steam engine cylinder for Watt, which made Watt's improved steam engine popularized on a large scale.

Stone bear points out that the boring machine made by Jack Williams can accurately bore the barrel of a large caliber gun, which is the technology he learned from John Wilkinson.

In this era, John Wilkinson's boring technology is naturally very secret, but it can't stand the stone bear. There is a soul from later generations in its body. In later generations, Wilkinson's boring machine technology has no confidentiality at all, and this technology is no different from primitive people.

If it were not for the nature of Shi Xiong's work in his previous life, he would not have specifically understood this old technology.

As a result, I didn't expect to use the understanding of previous life in my life.

Jack Williams built the boring machine and improved steam engine from wood long before new metal materials were made. So, after David Addison's new model just passed the test, Jack Williams immediately built several boring machines and steam engines in the shortest time.

The 76mm mortar was quickly developed and tested, and now Jack Williams is focused on the 76mm cannon.

This kind of cannon already has a sample gun, and it is also being tested.

Of course, the 76mm cannon was imitated by Jack Williams, who was instructed by the stone bear, according to the later Miss 75 of France.

In the original historical time and space, the French launched a cannon that shocked the whole world in 1897, that is the famous m1897 75mm cannon.

In the 19th century, when the loading speed of the Armstrong breech guns mounted by the armies of other European powers was only two rounds per minute, the French launched the m1897 75mm cannon with a recoil mechanism, which could reach the amazing loading speed of 15 rounds per minute, or even 30 rounds per minute at the limit.

Such a loading speed in that era was just as incredible as the stone bear's application of catapults and mortars in this era.

Moreover, the total weight of the m1897 75mm cannon is less than 1200 kg, and its effective range is 8.5 km. So, when the gun was launched, it immediately won the nickname of ”Miss 75 of France”

The gun developed by the Cherokee family is an imitation of Miss 75 under the guidance of the stone bear.

As for shells, also under the guidance of stone bear, Jack Williams has developed a machine that can make all metal shell shells.

Even the boring machine that precisely bored the barrel of the gun was out of order, and the machine that made all metal shells couldn't stop Williams.

And now the stone bear has smokeless powder technology, shockitzer technology, and mercury technology. The foundation for making all metal shell shells has been established