When he left London, Marin got on his body and began an exaggerated star-like performance. After boarding the ship, in front of the spectators on the docks in London, Marin also publicly drew his sword "Frost Sorrow", cut off one of the guardrails on the ship, and shouted loudly and publicly - Princess Margaret is his daughter-in-law, and can only marry his son Caesar. Whoever dares to rob will be cut down......

His performance really frightened many people. Some of the English nobles began to fear a civil war in the country, after all, Marin had 20,000 troops in England. forced him to be in a hurry, and it was not a matter at all to lead troops to rebel.

Even, Marin's performance frightened the French. François I was overjoyed when he learned that Marin and England were having an unpleasant quarrel. He summoned his cronies and nobles and secretly discussed the possibility of using Marin to provoke a civil war in England.

After all, if Marin's army provoked a civil war in England, England would be in disarray. At that time, France will have the opportunity to annex England.

According to the reasoning of François I and his cronies, whether Edward won or Marin won, France would benefit.

Marin is not a weak chicken, but a ruthless man. Even if Edward could win, he would inevitably lose a lot. At that time, it will be difficult to resist the French invasion.

If Marin wins, he will be happy. Because, Marin seized England, and the name is not justified. When the time comes, he will be able to take England in the name of avenging Edward. Perhaps, it will also get a response from many English nobles......

Unfortunately, François I did not know that these ideas of his were just a pipe dream. Because, Edward wouldn't be stupid enough to turn his face with Marin. Even, the English were ready to take the fortress of Calais......

……

Back at Port Emden, Marin also went to the indoor swimming pool of the secret base to visit the divers' training. Divers are a very powerful class, and in later generations, divers in the army are also called frogmen.

Frogmen are a very powerful class, they can conduct underwater reconnaissance, they can also dive close to enemy ships, and use bombs to blow up the bottom of enemy ships.

Moreover, in this era, the frogman's natural enemies, dolphin soldiers and underwater sonar, were not available. If the frogmen are trained, they can be used to blast the enemy's warships.

For example, frogmen can dive underneath enemy capital ships. Then, using a suction cup device, the bomb is attached to the bottom of the enemy ship and detonated.

The ships of this era were all wooden boats, which could not withstand the blasting of bombs. Once the bottom of the ship leaks, the European-style sailing ship has no watertight compartment design, and can only sink......

Of course, in order to achieve operational objectives, the North Sea State also had to develop suction cup devices for fixing bombs. At the same time, it is necessary to develop high-power bombs.

Black powder was too weak to be used to blast ships. Therefore, Marlin wanted to develop a more powerful bomb.

In fact, Marin already had smokeless gunpowder. But if this thing is not passivated, its performance is very unstable, and once it is passivated, the combustion rate becomes slower, and it is not suitable for explosives. So, Marin had to find another way.

It's a pity that Marin didn't understand the manufacturing technology of the famous C-4 in later generations, so he could only regrettably give up this artifact.

Then, the bitterness is sour or something, and he doesn't understand it. The Twenti or something, the later books don't make it clear......

Well, then, there is only one option - Nobel dynamite......

The most classic Knott's explosives are nitrate-glycerine-oil with diatomaceous earth. This is relatively easy, that is, concentrated nitric acid reacts with glycerin, and then, diatomaceous earth is added.

But it is said that this thing is super fierce, and Nobel blew up his brother when he tried it.

Marin didn't dare to do this thing himself, so he could only find a few people who were not afraid of death to test it. As for how to achieve a safe ratio, we can only try with human life. Anyway, he didn't dare to configure the test himself.

If this Knott's explosive is successfully developed, combined with the suction cup device and the moisture-proof ignition system, the frogman troops can make the Spanish and Portuguese fleets call Daddy......

……

In fact, in this battle in Calais, Marin can also send a diver unit. But considering that it is still spring, it is still relatively cold in the water. If you freeze the diver, the gain outweighs the loss. If it had been summer, Marin might have agreed to the divers going into battle.

But time waits for no one, and by the end of the summer, perhaps the French government and opposition will stabilize. If you send troops at that time, you may be taught how to be a man by the French. Therefore, in a hurry, Marin could only count on the iron sewer gates to solve the French defense in Calais.

……

After inspecting the training of frogmen in the indoor heated swimming pool, Marin had planned to rush back to Orich with Angela and Caesar, but a large ship suddenly returned to Emden Military Harbor, so Marin had to stay, and Angela and Caesar went back first.

What kind of big ship appeared in the military port? It turned out that the shipyard on Long Island, New York, successfully built a thousand-ton warship! The ship that sailed into the port of Emden was the 1,000-ton warship test ship developed by Marin Rang New York Shipyard!

As early as a few years ago, Marin was given the task of developing a thousand-ton warship. At the beginning, this work was carried out at the Emden shipyard. Later, however, due to the need for secrecy, Marin transferred the craftsmen who were mainly involved in the work to the New York shipyard.

The shipyards on Long Island in New York are full of high-quality oak cut down from the North American continent that are at least a few hundred years old, mainly red oak. Moreover, they have been air-dried for more than two years and have reached the standards of shipbuilding.

At the Long Island Shipyard in New York, it's as easy as trying to get good timber for shipbuilding, just run to any of the rainproof shelters where the timber is stored. Moreover, each log can be used as a keel.

When the local North Sea shipbuilders first arrived at the New York shipyard, they were ecstatic to see the logs stored in the rain shelter suitable for keels. But after a long time, because there were logs everywhere suitable for keels, these shipbuilders became numb. Even if they cut and break down logs that are suitable for keels and make them into ribs, they don't feel sorry for it.

Originally, the thousand-ton battleships were all designed and planned to start construction. However, Ma Lin suddenly brought back a group of treasure ship craftsmen from Daming. Moreover, he also ordered this group of craftsmen who knew how to build treasure ships to participate in the construction of thousand-ton warships, and asked for the application of watertight compartment technology to the manufacture of new warships......

Then the creation of a thousand-ton battleship was toppled and restarted. European shipbuilders are mainly responsible for the design and manufacture of keel structures. The treasure ship craftsmen of Daming are mainly responsible for the design and manufacture of watertight compartments. Then, the two merge and complete the battleship together......

But it is precisely because of the fusion of the two genres that there are a lot of conflicts of ideas at the beginning. Therefore, the cooperation between European craftsmen and Ming craftsmen was not pleasant at first, and there were many contradictions.

For this reason, the progress of shipbuilding has slowed down so much. It dragged on for several years, until the craftsmen of the two sides learned from each other and allowed the integration of Eastern and Western technologies to finally succeed in building a thousand-ton warship with a watertight compartment design......

With excitement, Marin came to the secret military port, boarded the 1,000-ton battleship, which had completed testing, and began to inspect it......