Marin didn't know much about the tactical origin of the Calais ship and France's robbery and escape. In the past, he was just a continental player and not a fan of the big sailing. So, he really didn't know some situations. So he didn't know about the Calais ship of the French Navy in the early 16th century that he didn't know about Britain for decades. Naturally, he didn't know about Biddus.
It is no wonder that the later Chinese side did not describe European history in detail. When it comes to naval wars, they often start after the naval wars in the West. As for the naval wars before the English-South China Naval Wars, there are often very few descriptions. Only the most die-hard sailing fans will know the secrets.
Therefore, when John Rafi sent back to Orich the news of Biddus' appearance and the Calais boat tour tactics, Marin did not pay too much attention. However, after careful consideration, Marin had to admit that this tactic might really make England suffer.
After all, the warships in England are now all primitive Kirk sailboats recruited from the public, with a thin hull. If you really get a 50-pound stone bullet, it will be very unbearable.
Then, he developed a strong interest in Venice's lizard cannon...
The Venetian lizard monster cannons were mainly imitated from Turkey, weighing 7,000 pounds and made of bronze. The shells it fired were stone bullets weighing 50 pounds. Although the ability to break the defense was not as good as the iron ball shells, the weight was there and everyone was in trouble. In particular, warships that were still thin on the side of this era were not smashed at all.
The reason why the lizard monster cannon is called the lizard monster cannon is because it is ugly, thick and short, and the cannon body is deliberately made like a lizard opens its mouth. In other words, it is a kind of mortar cannon, which is the predecessor of the mortar. In Russia, this lizard monster cannon also has a famous name - the unicorn cannon.
In this era, due to the limitations of casting technology, all large-caliber artillery were almost short and thick mortars. Because large-caliber artillery with long tubes could not be made in this era.
Marin has seen the pictures sent back from Italy and was shocked by the ugly appearance of the lizard monster cannon - Damn, this is a gasoline barrel with a lot of thickened walls!
Its diameter is not much different from that of the gasoline barrel, but the pipe wall is much thicker than that of the gasoline barrel. But the lengths of the two are somewhat similar, both are short and thick.
However, these cannons are all cast in bronze, and the difficulty of casting is much smaller than that of iron cannons. In short, as long as the pipe wall is as thick as possible, a large-caliber mortar can be cast.
However, the range of this kind of mortar is generally relatively close, only a few hundred meters. In general, in naval warfare, you need to get close to the enemy ship and then suddenly send it.
However, because the large-caliber artillery has a great recoil. In order to prevent the ship from falling apart, such large-caliber mortar can only be arranged in the strongest place in the bow structure. If placed on the side, it will either easily capsize the ship or easily cause the ship to fall apart.
Moreover, because copper tends to become soft after overheating. If you force continuous shooting, the gun body will easily deform when it overheated. Therefore, the bronze mortar can not be continuously fired. After each shooting, if you feel the gun body is hot, you will first use a wet mop to cool the gun body to avoid firing when it overheated and causing the gun barrel to deform.
Therefore, the firing speed of this bronze mortar cannon is very touching, and it usually takes several minutes to fire, while the entire ship usually only has one lizard monster cannon...
Therefore, the efficiency of the lizard monster cannon is generally not high. But if you are hit, it will be uncomfortable...
With the current structural strength of ships in various countries, they are hit by 50 pounds of stone bullets, and the ships that are less likely to fall apart. Good ships will also be seriously injured. If they are hit on the side, they will basically leak side...the real leak side...
Marin deduced it and found that although this lizard monster cannon is designed with low efficiency, it has better effect. If it can hit an enemy ship, the effect will be absolutely great.
Even the Beihai Country's level 250 armed merchant ship may not be able to withstand the attack of 50-pound stone bullets. Only by carrying out special reinforcement and being wrapped in iron on the side can the Beihai Country's 500-ton warship with iron on its side can withstand the attack of 50-pound stone bullets without leaking.
In other words, this kind of lizard monster cannon has very good effect in naval battles. Although it is ugly, it takes several minutes to load it at a time. However, it is very powerful. As long as it hits, it will definitely have results.
The only problem is that the mortars are all shot, and aiming is extremely difficult. To shoot an enemy ship, a high shooting level is required.
Fortunately, the lizard monster cannons are usually placed at the bow of the ship, facing the front. Because the ship can only sway left and right, it provides a lot of convenience for the lizard monster cannons to aim. For naval battles, aiming with the side cannons is the most difficult, because the hull cannons will sway left and right, which provides too much difficulty for aiming.
The aiming method of the main gun on the bow is much simpler, and the ship will not sway back and forth. But the problem is that the mortar is ejected, not flat shots, and it is really difficult for ordinary people to aim and shoot...
But this problem is not difficult for Marin - as the birthplace of the lizard monster cannon, there must be masters who are proficient in the aiming and shooting of the lizard monster cannon. At that time, you can dig up the gunners of the Beihai Kingdom with high salaries...
...
At present, the development of the Pexan cannon is still in progress, and the Beihai Kingdom lacks a super-large caliber main gun. If this kind of lizard monster cannon can be introduced, the results will be brilliant...
Think about it, how exciting it would be if a 50-pound shell hit the Portuguese warship...
So Marin immediately ordered the introduction of 20 lizard monster guns from Venice to be used to equip the bow of 20 500-ton warships.
Once the battle begins, the 20 lizard monster guns on the warships fire together. As long as the accuracy is not too bad, one or two Portuguese warships can always be smashed...
As for why the lizard cannon fires stone bullets instead of iron balls, Marin can understand it very well. Because the steel production is extremely low these days. Using steel to make shells that sink to the bottom of the sea with just one shot is simply a luxury! You know, 50 pounds of iron can create dozens of steel farm tools...
Therefore, under the premise of touching steel output, it is understandable that everyone chooses a stone bullet. After all, even if a 50-pound stone sinks to the bottom of the sea after missing, it will not be so distressing for everyone. If it is replaced with a 50-pound iron ball sinks to the bottom of the sea?
After all, it is still a cost issue. Because it is a naval battle, the possibility of shells being recycled becomes infinitely small, and the possibility of sinking to the bottom of the sea is very high. If it is replaced with a 50-pound iron ball and one into the sea, the user will feel very distressed...
Moreover, if the Beihai Kingdom uses the lizard monster cannon, it can be easier - cast the shells with cement!
A 50-pound stone ball may be difficult to process and transport, but if it is a cement ball, it will be much simpler...
You must be too loose and easy to break. Therefore, before casting a 50-pound cement ball, you can fill the inside of the cement ball with some steel bars. Not only can the strength of the cement ball, but it will also be even more powerful when smashing the boat...
Therefore, while Marin ordered the introduction of 20 7,000-pound lizard monster guns, he also ordered craftsmen to study the use of reinforced concrete to pour 50-pound concrete shells for use in naval combat.
Chapter completed!