Any weapon depends on a system to be most effective, and it is impossible for anyone to look at the performance of the weapon itself and kill all sides. Whether it was the battleships that once roamed the seas, the Nazi wolves that once made the British Empire nervous, or the aircraft carrier battle groups that roamed the Pacific, they all fought on the system.

The fundamental reason is that the German Navy has created a complete set of maritime combat systems for submarines from intelligence collection to logistics supply, in which intelligence collection and supply are known as the foundation of German submarines rampant across the ocean, after all, relying on slow submarines to search for the enemy in the vast sea is tantamount to looking for a needle in a haystack, and if there is no supply in the vast ocean, the limited endurance of the submarine will greatly reduce the efficiency of breaking the diplomatic relationship. It's normal to go out and not be able to catch it once.

In response to these two crucial problems, the Germans solved them in this way, first of all, the reconnaissance aspect can be said to be a three-pronged approach, spies abroad will send the collected intelligence back home, and at the same time send FW200 long-range patrol aircraft in areas close to Europe to search, and the most common thing is to rely on submarines to track and locate. When the intelligence of the transport fleet is obtained, the German Admiralty will send the information to the target sea area through long-wave radio, and then coordinate and cooperate with each other, and when night falls, the encirclement of the escort fleet will be launched.

In terms of replenishment, in addition to increasing the endurance of the submarine as much as possible, the remaining important means is the world-famous cow supply submarine. The fuel and ammunition provided by the huge cows allowed the U-boats to expand their combat range to the other side of the ocean, and once made the American coast full of soldiers.

However, because of the technical conditions. It is impossible for Xu Jie to obtain such a comprehensive system, so in terms of intelligence and supplies, Xu Jie intends to arrange it this way. Intelligence still relies on agents hidden in the Dutch East Indies. However, considering that the cable telegraph would be strictly controlled in times of war, Xu Jie could only find ways to send wireless telegraph transmitters to Dutch Indonesia. Then hide in a hidden place.

Some people may say what happens once it is discovered, but how to say it? Dutch control over the colonies was still very weak, and Indonesia, known as the land of 10,000 islands, had many islands uninhabited until now, let alone in 1900. In areas far from the city, as long as you can level down with the local indigenous people, there is no problem at all in getting a radio station. Of course, taking into account the range of action of the temporary station. It was not enough to provide information directly to the submarine, and for this, Xu Jie had to seek help from the British. Rely on the British to relay intelligence on the radio in Malaya.

And in terms of submarine layout. Xu Jie decided to learn the 2 war submarine cordon. Sending submarines to form formations spread out in an arc in the target sea area, with a distance of 50 to 75 kilometers between the submarines, and the key area is near the eastern outlet of the Strait of Malacca and important Dutch seaports. But it's not the same on some of the main roads. If you can. Xu Jie also plans to take advantage of the night to send a submarine force to lay a few mines on the channel of the port.

In terms of logistical supply, Xu Jie can't make a cream that can provide hundreds of tons of diesel fuel and torpedoes for submarines at sea, and more importantly, without the support of long-wave radio, it is difficult to communicate between different submarine groups, that is, it is difficult for both sides to meet together on the sea, let alone replenish. Therefore, submarine replenishment is either carried out by high-speed merchant ships. Either they made an agreement with the British to resupply the British possessions in Malaya. In terms of effect, the latter is undoubtedly better. Not only can it replenish the fuel it needs, but it is also absolutely safe.

In addition to shore replenishment, another way is to replenish at sea, using high-speed camouflage supply ships to supply submarines with ammunition and diesel at sea. Considering that the Russians will have some high-speed light cruisers, possibly cruising at sea. (Historically, in the Russo-Japanese naval battle, the Russians had 25-knots third-class cruisers.) Xu Jie must equip these camouflaged supply ships with sufficient armament, after all, it is difficult to increase the current speed to 25 knots, even if the steam turbine is replaced, the speed increase is still limited, in the open sea, mechanical fatigue and various aquatic organisms attached to the bottom of the ship can easily reduce the speed of the battleship by 1 to 2 knots, so it is not reliable to get rid of the pursuit simply by speed.

So Xu Jie wondered if he could turn the original Guiyuan-class battleship into a camouflaged supply ship. Replace it with a new kerosene boiler to ensure that it can run at a speed of 24 knots, and you can get rid of the opponent's capital ship, and you can beat it if you run into a high-speed third-class cruiser. Considering the problem of insufficient range, the warship will be resupplied in the Philippines or Malaya before entering the war zone to improve endurance.

The submarine problem is solved, and the rest is the anti-submarine problem, since the emergence of submarines, until the anti-submarine aircraft are put into service in large numbers, the only way to deal with submarines is to rely on dense frigates, especially in the era when there is no sonar, only by relying on hydrophones and dense protective nets can the safety of the fleet be guaranteed, as for the fleet, it is necessary to rely on high speed and constantly changing course to avoid the submarines ambushed by the other side, although historically, the Russians did not pay attention to it, But Xu Jie didn't dare to gamble with the precious dreadnought that the Russians' submarines couldn't beat him!

For a possible submarine crisis, all Xu Jie can do is increase the number of various auxiliary cruisers, and then press enough hydrophones and depth charges on them. At the same time, Xu Jie also planned to refer to the mortar and make an anti-submarine mortar or something in advance. Another way is to install a mine protection net on the battleship, at this time the torpedo has not yet installed a mature cutter on the mine head, and the torpedo speed is not fast enough, the mine protection net is still very useful.

Historically, in the Russo-Japanese War, during the Battle of Arthur, the Russian battleship Sevastopol was attacked by 104 torpedoes in 5 days, and was not sunk until the last one because the stern was not protected. From this, it can be seen that in the face of torpedoes at low speeds and without cutters, heavy mine nets are still very useful.

Moreover, the lightning protection net is deployed relatively quickly, generally in 2 to 3 minutes to complete the retraction, and even if the lightning protection net is deployed, the fleet can sail at a low speed of 6 knots. That is to say, if the frigates on the periphery discover the enemy's submarine, they will also have plenty of time to collect and release the anti-mine nets.

Of course, the high efficiency of the mine protection net is based on the fact that the torpedo is not very advanced, and there is an early warning, if it comes to the first battle, the high-speed torpedo and the mature mine head cutter will make this kind of marine mine protection net defense completely become a chicken rib. (Lightning nets in ports still work!) But that's an afterthought, Xu Jie won't consider it for the time being.

Thank you for the monthly ticket support of the book friend Songlin Pony and the reward of my family~~~~ (To be continued.) )