This is definitely the artillery with the longest barrel among all the cannons of the Ning Navy so far. What surprised Cheng Shijie most was that this artillery actually had the shadow of later artillery. In addition to the artillery pick that appeared on the three-inch gun, there were also

A spring return is installed.

The cannons like the Hongyi Cannon are so angry that they move back several meters as soon as the cannon is fired. With the garrison hoe, it is easy to handle. As long as the garrison hoe is installed and the garrison hoe is nailed deeply into the ground, the cannon will not shift.

Of course, this is a light artillery and you can use a gun hoe to solve the recoil problem, but the recoil of a large-caliber artillery is too great. Without a muzzle brake, the consequences will be the same.

But with a gun hoe and a muzzle brake, the effect will be much better. The key is that rubber is actually used on this artillery. Rubber is not widely used now. This is what Bishop Robben arrived in Liaodong two months ago.

At that time, we carried half a boat of rubber. Now the main purpose of rubber is to make rubber sticks.

Rubber sticks hurt people but do not hurt. Especially in the colonies of Europe, they are very effective when used to supervise work. However, in Liaodong, these craftsmen immediately discovered other functions of this kind of rubber. After some exploration, they were successfully used

Applied to the breech seal and gun wheel.

After testing, the performance is satisfactory. After using rubber on the breech block, the sealing performance is greatly improved, and the gas leakage has almost completely disappeared. The rubber wheels make it easy to drive the gun carriage on the road. In the same road conditions, using wooden

With wheels, one person can pull a small cannon and fall down when tired, but with rubber wheels, one can drag it along at a trot.

This artillery was beyond Cheng Shijie's expectation: "Have you tried the artillery? How is the effect?"

"It's not too late to report back to the commander-in-chief!"

"Then let's test the cannon!"

"Is it here?"

"Where is it if it's not here?"

This is the real reason why Cheng Shijie moved the Gun Bureau from Jinzhou City. The Gun Bureau in Jinzhou City is in the downtown area. It is okay to test the muskets. After all, the range is limited and the penetration is also limited. Shooting against the wall is not a big problem.

.

But artillery is different. In theory, this five-inch cannon can shoot outside Jinzhou City, but what if the test fails?

In this way, under the operation of more than a dozen craftsmen, the artillery began to aim at the south of the gun bureau. To the south was a large virgin forest in the Daheishan Mountains. Even if the cannon shells exploded, there would not be a big problem.

Cheng Shijie was just a little worried. Looking at the springs of these brakes, they were as thick as a little finger. But the question was, could such springs have enough elasticity?

The point is, there is no way to calculate this.

Huang Lidong introduced the artillery to Cheng Shijie: "This artillery is the result of the "C" group of the Gun and Artillery Bureau. It has a total of twelve right-hand rifling..."

Just as he was talking, there was a loud bang.

PS: This chapter is from yesterday, and there will be another one tonight.
Chapter completed!