"If Your Majesty is a craftsman, he will definitely be the best in China!"

After seeing the design of the dragon bone mentioned by Li Yi, Muto Ichiro said this excitedly. Zhang Chong shook his head beside him and said nothing. After all, Muto Ichiro said this for the rise of the Tang Dynasty naval army. It cannot be regarded as disrespect or any words to Li Yi.

"According to the deadline given by Your Majesty, in two years we will not only build at least one such huge warship, but also transform the existing warships into keels. If we can create more warships, it would be better."

In fact, Zhang Chong knew that if he was fair, Li Qing's requirement would be a little harsh, but over the years, Muto Ichiro has completely integrated into the identity of a top craftsman in the Tang Dynasty, and what he wanted was this new challenge.

Now that Li Yi has proposed such a critical thing as a dragon bone, Muto Ichiro must try his best to challenge his limits. In fact, he knows that he and these craftsmen from the Tang Dynasty have been challenging the limits in recent years?

"I Muto Ichiro will definitely complete this matter within two years according to Your Majesty's request! If it cannot be completed, I would rather be an ordinary soldier among the Tang Dynasty's naval army!"

When Zhang Chong heard Muto Ichiro's words, he laughed and said to himself that if I let you be an ordinary soldier in the navy, his Majesty would probably have to let me be an ordinary soldier.

But he definitely knew Ichiro Muto's temper. If you say so, let him go. He himself would never want to be a soldier in the navy, so Ichiro Muto will definitely work hard in the past two years.

That big battleship was actually not too difficult for Ichiro Muto, but I didn't think about it before.

However, Muto Ichiro now thought of a way to greatly increase efficiency, which was to make the first attempt at keel on the large ship that Li Yi asked to build. Once it was successful, it would obviously be much easier in the future. Of course, if it failed, the most time wasted.

It took Ichiro Muto a full half month to finally understand what the keel bone proposed by Li Yi was in theory.

Zhang Chong had already said in recording Li Qing's words that the keel of a warship refers to a large longitudinal main component connecting the bow and stern in the center of the bottom of the ship. The keel will be equipped with transverse ship ribs to form the basic structure of the main body of the ship.

The keel is usually made of long and thick tree trunks. Because it looks like an ancient Chinese dragon, Li said he named it the keel bone.

Muto Ichiro discovered that in this era, the keel mainly acts as load-bearing and stress-bearing. The length of the keel usually determines the length of the ship, and the bearing capacity is dispersed throughout the hull, so the role of the keel in the traditional sense is still quite huge.

Before building a ship, you must first lay the keel bones, just like a fish skeleton. Compared with things without bones, the combat power must be different!

In addition, Li Yan also put forward a lot of opinions on other details.

For example, after the keel is applied to a warship, the warship should adopt a slender and slender hull, with an aspect ratio of about 5 to 1, which is much larger than the length and width ratio of the ancient ships in previous periods. At the same time, watertight cabins can be widely used on the warships, making these improved warships not only have good maneuverability, but also have strong anti-sinking properties, and are more suitable for maritime combat.

Muto Ichiro also deepened these suggestions and put forward his own ideas and questions.

The streamlined pointed end and wide tail have a smooth hull and low resistance, so its speed is obviously better.

Before this, most ancient ships were "short fat", with a small aspect ratio, wide shape, deep cabin, good stability, and suitable for loading a large number of cargo. Therefore, some craftsmen in the Tang Dynasty believed that "therefore, wooden ships must be fatter and shorter, especially giant wooden ships."

Now, an ordinary warship after the keel has been added, with a length of 35 meters and a width of 6 meters. The length and width ratio are almost twice that of the ancient ships before the Tang Dynasty discovered in the past. It can be seen that the ship design of the new warship is contrary to the traditional "short fat" cargo ship format, and adopts the "lean" with a slender hull, focusing on its speed, but how it solves the strength and stability of the hull is still a topic that Ichiro Muto needs to study in the future.

In addition, Muto Ichiro also has a very deep understanding of the northern waters of the Tang Dynasty and the waters around Japan.

There are many shallows along the northern coast of the Tang Dynasty, which are not suitable for sailing or mooring ships with "balanced top and blades on the bottom". Therefore, the bottom of the warships newly manufactured in recent years is characterized by a sharp round bottom, which is different from the flat sand ships and sharp bottoms. Its structure is strong and has strong seaworthiness, and can enter various ports and different waters in the northern part of the Tang Dynasty. Therefore, Muto Ichiro has long summarized that the construction of the warships in the Tang Dynasty must be designed in a targeted manner according to the situation in different seas, and fully consider the seaworthiness of the warships.

In fact, in the current Datang warships, especially in the anti-sinking properties of the warships, there are as many as dozens of watertight cabins. The bulkheads are close to the place where the keels are ready to be installed in the future, and the bulkhead hooks are very tightly connected.

In addition, the bottom plate of the ship is made of greasy material made of hemp silk, tung oil and lime, and the watertightness is very high. When warships are injured, collided, or hit the reef during combat, patrol and reconnaissance, the hull is damaged by the enemy, crashed, etc., and after one or several cabins are infiltrated, they still have a certain reserve buoyancy and stability, so they will not overturn, and will not show excessive tilt and trim, and can still maintain sufficient nautical performance and combat performance. This is a considerable improvement compared with the warships of the Tang Dynasty before.

On the one hand, Ichiro Muto and Zhang Chong did not forget that as combat troops, the most important thing about the Tang navy is nothing but the weapons, so in recent years, they both spared almost no effort to upgrade weapons.

The Navy has used the most advanced fire bullet bottles, iron swords, stone bullets, gray bullet bottles, copper sharps, etc. in this era.

At this time, the weapons of the Tang Dynasty, in addition to using cold weapons such as swords, swords, spears, axes, bows and arrows, were also used as fire bombs and bottles, which were considered quite advanced weapons.

The copper guns under the Dongmu Navy warships were obviously not fired alone, but were installed on the warships for naval guns.
Chapter completed!