Marin did not know much about the origins of the Calais ship and the French tactics of escaping. In the past, he was only a continental player, not a big sailing fan. So, there are some situations that he really doesn't know. So much so that he did not know that the Calais of the French Navy in the early 16th century had played the English game for decades. For the person of Bidus, it is naturally not clear.

It is no wonder that the later Chinese side did not describe the history of Europe in detail. When it comes to naval battles, they often start after the Anglo-Spanish naval battles. As for the naval battles that preceded the Anglo-Spanish naval battle, they are often poorly described. Only the most die-hard nautical fans will know the secrets.

So, when John. When Raffi sent back to Aurich the news of Bidus's appearance and Calais's skirmish tactics, Marin didn't take it too seriously. However, after careful consideration, Marin also had to admit that this tactic may really make England suffer.

After all, the warships of England now are all primitive Kirk galleons recruited from the people, and their hulls are relatively thin. If you really take a 50-pound stone bullet, it is very unbearable.

Then, he became interested in the Venetian saurisk cannon......

The Venetian saurilisk cannon was largely copied from Turkey and weighed 7,000 pounds and was made of bronze. The cannonballs fired were stone projectiles weighing up to 50 pounds. Although the ability to break the defense can't catch up with the iron ball cannonball, the weight is there, and whoever smashes it is unlucky. In particular, warships that were still very thin on the side of this era were not smashed at all.

The Lilbel Cannon is called the Lizard Cannon because it is ugly, thick and short, and the body of the cannon is deliberately made to look like a lizard opening its mouth. In other words, it is a kind of mortar, that is, the predecessor of the mortar. And in Russia, this saurisk cannon also has a well-known name - the unicorn cannon.

In this era, due to the limitations of the casting process, almost all large-caliber artillery was a short and thick mortar. Because, large-caliber artillery with a long barrel could not be built at all in this era.

Marin had seen the pictures from Italy and was shocked by the ugliness of the lizard cannon - Nima, this is a gasoline drum with a much thicker wall!

Its caliber is similar to that of a gasoline barrel, that is, the pipe wall is much thicker than that of a gasoline barrel. But the length of the two is somewhat similar, both are short and thick.

However, these cannons were cast in bronze, and the casting difficulty was much less than that of iron cannons. In short, as long as the pipe wall is thickened enough, a large-caliber mortar can be cast.

It's just that the firing range of this mortar is generally relatively close, only a few hundred meters. In general, in naval warfare, it is necessary to get close to the enemy ship and give a cold shot.

However, because the recoil of large-caliber guns is large. In order to prevent the ship from falling apart, such large-caliber mortars could only be arranged in the strongest place of the bow structure. If it is placed on the side side, it is either easy to capsize or it is easy to fall apart.

Moreover, because copper tends to soften when overheated. If you force continuous fire, the gun body will easily deform when it overheats. So, the bronze mortar could not shoot continuously. After each shot, if you feel that the gun body is hot, you will first use a damp mop to cool down the gun body to avoid firing when it is overheated, which will cause the gun barrel to deform.

As a result, the rate at which this bronze mortar cannon fires is impressive, and it usually takes several minutes to fire a shot, while there is usually only one lizardron cannon in the whole ship......

Therefore, the effectiveness of the Lizard Cannons is generally not high. But if you get hit, it's uncomfortable......

With the current structural strength of the ships of various countries, they were hit by 50-pound stone bullets, and the ships that almost fell apart directly. A better ship will also be seriously injured. If you are hit on the side side, it will basically leak sideways...... Real side leaks......

Marin deduced it and found that although the design efficiency of this lizard cannon was lower, it was more effective. If you can hit an enemy ship, the effect is absolutely devastation.

Even the 250-level armed merchant ships of the Beihai Kingdom may not be able to withstand the attack of 50-pound stone bullets. Only a 500-ton battleship of the Beihai Kingdom, which was specially reinforced and wrapped with iron sheets on the sideboard, could withstand the attack of 50-pound stone bullets without leaking.

In other words, this lizard cannon, the effect in naval battles is very good. It's ugly though, though it takes a few minutes to reload at a time. However, it is especially powerful. As long as it hits, it will be fruitful.

The only problem, presumably, is that the mortars are all projectile, and aiming is extremely difficult. In order to throw a shot at an enemy ship, a high level of shooting is required.

Luckily, the saurisk cannons are usually placed in the bow of the ship, facing the front. Because the ship can only sway from side to side, not back and forth, it provides a lot of convenience for the saurisk cannon to aim. For naval warfare, the aiming of the side guns was the most difficult, because the hull would sway from side to side, which provided too much difficulty for aiming.

The main gun in the bow is much simpler to aim, and the ship will not swing back and forth. But the problem is that mortars are projectile, not flat-fired, and it is really difficult for ordinary people to aim and shoot......

But this question is not difficult for Marin - Venice, as the birthplace of the Lizard Cannon, must have a master who is proficient in aiming and shooting the Lizard Cannon. When the time comes, the gunners who will be dug up to teach the Beihai Kingdom with a high salary......

……

At the moment, the research and development of the Pexan cannon is still in progress, and the North Sea State lacks a super-large caliber main gun. If this kind of lizardiv cannon can be introduced, it is estimated that the results will be brilliant......

Think about it, how hard it would be if a 50-pound shell smashed on a Portuguese ship......

As a result, Marin immediately ordered the introduction of 20 Lizard Cannons from Venice to equip the bow of 20 500-ton ships.

Once the battle began, the 20 ships of the Lizard Cannons opened fire together, and as long as the accuracy was not too bad, they could always smash one or two Portuguese ships......

As for why the Limbilisk Cannon shoots stone bullets instead of iron balls, Marin can understand why. Because, steel production was extremely low in this year. Making a cannonball out of steel that sinks to the bottom of the sea with a single shot is a luxury! You must know that 50 pounds of iron can make dozens of steel farm tools......

Therefore, under the premise that the steel output is impressive, it is understandable that everyone chooses stone bullets. After all, even if a 50-pound stone sinks to the bottom of the sea after a miss, everyone is not so distressed. What if you change to a 50-pound iron ball and sink to the bottom of the sea?

At the end of the day, it's a matter of cost. Because it was a naval battle, the possibility of the shells being recovered became infinitely smaller, and the possibility of sinking to the bottom of the sea was very high. If you change to a 50-pound iron ball and drop one into the sea, the user will feel distressed......

Moreover, if the North Sea Kingdom uses the Lizard Cannon, it can be made even easier - cast cannonballs with cement!

A 50-pound stone ball may be difficult to process and transport, but with a cement ball, it's much simpler......

Pure who you seek is sure to be too loose and easy to break. So, before casting a 50-pound cement ball, it's completely possible to fill the inside of the cement ball with some rebar or something. Not only can it increase the strength of the cement ball, but it is also more powerful when smashing the ship......

So, while Marin ordered the introduction of 20 7,000-pound saurisk cannons, he also ordered craftsmen to study pouring 50-pound concrete cannonballs from reinforced concrete for use in naval warfare.

As for iron ball shells or something, Beihai is not unaffordable. But if the shells are changed suddenly, the artillery itself needs to be modified. Marin doesn't have time to modify the Lilbilisk Cannon now, so he can only use reinforced concrete with a density similar to stone to make cannonballs. As for heavy artillery with iron ball shells, this probably requires the improvement of professionals......