Chapter 1729： Design of watertight compartment in bottom tank

With great excitement, Marin boarded this thousand-ton battleship that had just finished testing. The bottom of the battleship is covered with corrosion-resistant stainless steel. Since the discovery of the small chromite mine in Cuba, Marin has been able to make chromium-nickel alloy stainless steel skins instead of nickel steel skins. The effect is naturally much better.

Of course, the exterior of the stainless steel sheet is painted with dark paint. Otherwise, the bright white appearance of stainless steel is too shocking.

In addition, the battleship was also covered with stainless steel on the side and painted with paint. In this way, the sides are not afraid of being hit by iron ball shells.

Even, the side skin is thicker than the bottom of the ship, it is more appropriate to describe it with a steel plate. With such protection, ordinary shells are difficult to break. Unless it is a cone-shaped shell like that of later generations, it is easier to break the side shield.

Moreover, this design is difficult to imitate. Because, there is no anti-corrosion steel plate available in other countries. If it is replaced with copper skin, it can achieve certain results. However, this cost ... you know, the European copper price was several times more expensive than the Ming Dynasty ...

If the true Mongolian copper skin, the general European countries can not equip a few ships at all, let's talk about maritime hegemony?

Therefore, Marin is basically bullying other countries by relying on the technology tree-I can do it, you can't do it!

If someone asks, Marin will tell him with a smile-this is tinplate! That is, the tinplate is tinned, you imitate it ...

However, tinplate does not mention the cost problem. If there is scratching, the tin sheet will fall off, and the entire tin sheet will soon be finished. Moreover, the resistance of tinplate to seawater is not so strong. Even when the nail is nailed, the exposed part of the nail's hole can cause the entire tinplate to corrode ...

From the appearance, this battleship is no problem. Its shape is simply an enlarged version of a 500-ton warship. In other words, it is a reduced version of the "Constitution Number".

Like the Constitution, this battleship has only a double artillery deck. That is, the top deck and the lower deck are two levels, but the weather deck is equipped with a rain shed on the artillery position in accordance with the requirements of Marin, to avoid the humidity of the gunpowder. Then, the rain canopy was also covered with steel plates to protect the gunners from being hit by enemy shells.

In order to resist the recoil torque, the heavy guns on the ship are arranged on the lower deck, and the upper deck is basically arranged with 6 pounds and 12 pounds of light guns. There are only four 18 pound Kou Feilin guns, that is, Hongyi cannon.

The four Hongyi cannons were mainly used to bombard targets on shore. The reason why it is arranged on the upper deck is because the artillery is set higher, and it can shoot farther. After all, shells are parabolic. The same iron ball, standing in a higher place, with the same force, naturally throws farther ...

The reason why only 4 doors are arranged is that the recoil force is too large, causing the hull to incline. However, some designers pointed out that on the 500-ton class warships, four doors were enough. But the thousand-ton battleship is more resistant to recoil torque, and it can be increased to 8 ...

This is the layout of the top weather deck. Next, under the guidance of the crew on board, Marin entered the lower artillery deck ...

"Huh, why isn't it a watertight compartment?" Marin saw the problem at a glance. Because, the lower artillery deck is not the watertight compartment he imagined.

The watertight compartment divides the same floor into rooms, and each space is closed and can be used as an independent boat. In more specific terms, watertight compartments are similar to bamboo, section by section. Each section of bamboo is a sealed air tank that can float independently ...

However, the lower artillery deck that Marin saw was a structure in which the entire floor was interconnected, and there was no difference from the previous one. So he turned his suspicion to the captain Hobbit standing next to him.

Hobbit came from the New York Shipyard, naturally knowing the details, he explained:

"Duke, the watertight compartment is on the bottom floor, not on this floor ..."

"Why?" Marin asked frowning. He needed an explanation. Because, he said before to use watertight compartments as much as possible, do people in New York Shipyard think of their words as the wind?

Hobbit quickly explained:

"Master designer Tirpitt believes that the use of watertight compartments on the lower artillery deck will affect the interaction between gunners. As you know, gunners need to move back and forth and move gunpowder barrels and shells. The most important thing is It is not conducive to the artillery commander commanding the gunner. If it is partitioned into relatively closed rooms, the commander cannot command the gunners to shoot salute, one by one to notify the gunners one by one ... "

This reason is very reasonable. In the era of side salvos, if the gunners were really separated in different rooms, it was really not conducive to directing the shooting. Watertight compartments can be used in later generations of warships because the main guns of later generations are on the upper deck. Moreover, there is a communication system between the commander and the gunner on the ship, so it is difficult to give orders without worrying.

And in this era when command basically relied on roaring, it was indeed necessary to gather gunners to roar and command. If you really make it a watertight compartment, you can't play ...

Marin nodded, believing Hobbit's explanation.

Hobbit continued to explain:

"As for the watertight compartment, Master Tirpitt believes that its main purpose is to prevent sinking. And the ship sank, mainly because the bottom compartment is leaking. As for the lower artillery deck, which is usually above the waterline, no watertight compartment is needed. , Only need to design the watertight compartment in the bottom tank part of the lower layer ...... "

Afterwards, Captain Hobbit took Marin ~ www.novelhall.com ~ on the lower artillery deck, opened a few of them to the bilge, and led Marin along the stairs into the bilge to visit.

The bilge, which should have been integrated, was divided into seven compartments because of the design of the watertight compartment. Each cabin has a closable door design on the top. Once a cabin leaks, the soldiers on the lower artillery deck will block it first, then pump the water from the leaking cabin up and drain it through the gun door ... as long as more than half of the cabins are not leaking, the general ship will not sink ... The leaks in a certain cabin are really difficult to fill, but if the ship can't sink, you can also choose to block the cellar door above that cabin. Then, the ship dragged the wounded body and insisted to the nearest deliberately repaired port ...

Usually, when there is no accident, the bilge is generally used for loading, and some bilge is used for people, mainly for the sailors. But because there is no sunlight in the bilge and there is no sun, so the sailors would not go down until the rest time.

Moreover, the officers will not live in the bilge with little air circulation, but in the room on the lower artillery deck ...

However, because the Beihai State has very strict regulations on ship sanitation, the bilge tanks are usually cleaned up without any smell. Even the cabins with toilets have been cleaned. Unlike ships of other countries in this era, the bilge is full of stench, and there are many mice living ...