"You can attack." Denitz issued an attack order. "After the second attack, dive quickly."

A few seconds later, with the action of high-pressure air in the torpedo tube, the covers of the three torpedo tubes located at the fork of the boat were bounced open, and three torpedoes weighing more than one ton were penetrated into the water. After a while, a torpedo engine driven by a heat engine was activated, and a stream of exhaust gas was discharged from the mine body, forming a white trail under the water.

Just as unprepared, the attack time of the u190 submarine and the u154 submarine were almost the same. Before the Japanese fleet received the alarm, the target ship No. 1 in front was blown into pieces by two torpedoes. A huge fireball rose up on the sea, and the explosion power was far more than the power of two torpedoes. It seemed that this time it hit a ship transporting arms.

The dazzling light shone the surrounding sea like daylight. Denitz subconsciously opened his eyes, and the sudden brightening vision in the periscope made his eyes a little uncomfortable.

"Attack the second ship immediately, hurry up! Go and leave after the fight!" Dunitz ordered.

The submarine u190 turned right 15 degrees, and the torpedo tube on the back aimed at the second transport ship. At a distance of 1,000 meters, while the opponent was still looking weak, two torpedoes quickly rushed out of the torpedo tube and exploded the opponent's face!

"Prepare to dive and start counting down!" Denitz just wanted to leave quickly now. Some accidents occurred in the first target he attacked just now. The sudden light appeared very likely to reveal his position. Now, he needed to dive quickly and leave the battlefield before the Japanese reacted.

However, perhaps it was that Denitz had been going too smoothly before. According to the law of conservation of RP, God, he thought it was time to give you some hardships. 4,000 meters behind the U190 submarine, the Japanese destroyer Chushuang discovered this guy who killed at night! And as Denitz was worried, this destroyer found Denitz through the flames when the explosion of the target No. 1!

"Fire artillery, get ready for the deep-water bomb! Let's kill this guy." The angry roar of Tadakaichi Nagamo, who was the captain, resounded throughout Cambridge. After more than ten seconds, three 120mm shells landed around the U190 submarine.

Thanks to Denitz's vigilance, he immediately dived after firing the torpedo. When the Frost destroyer determined the position of the u190 submarine, only a small half of the u190 command tower was exposed on the water!

After the three-wheeled shells were shot out, they naturally found nothing. However, Tadichi Nagamori did not intend to give up just like this. For the destroyer Chushuang with a maximum speed of more than 30 knots, the distance of more than 4,000 meters was only a few minutes. When the U190 was completely hidden under the sea, the destroyer Chushuang had already arrived near the location where the U190 dived!

"Open all searchlights, pay attention to the sea surface. There may be torpedoes in the torpedo tube of this submarine! The deep-water bombs are ready to be set to a fixed depth, the 10 rounds in the front are about 15 to 25 meters, and the 35 to 45 meters behind are ready to be set to an anti-submarine warfare!" Second Ensign Nanyun ordered.

How to fight the anti-submarine destroyers in World War I? In this era when active sonars are not widely popularized and hydrophones can only be used, there is only one kind of anti-submarine weapon, which is to use deep-water bombs for cover bombing. As for how to discover submarines? Most of them are naturally discovered after the submarine surfaces, such as the U190 just now. It is still difficult to rely on hydrophones and sonars to discover submarines. It can be said that the difficulty of submarine anti-submarines is searching for more than 60%. Now, although only 40% of the difficulty is left, it is still difficult to deal with. Otherwise, the wolf pack in battle will not be so daunting.

Overall, Tadakaichi Nagamo was capable, otherwise he would not have become a general! In just a few minutes, he straightened out the whole situation. At least two big explosions occurred when the first target was destroyed, so it was very likely that it hit 2 torpedoes. After that, the second target also exploded twice when it was destroyed, and it should have hit 2 torpedoes. In this way, the German submarine fired at least 4 torpedoes. How many torpedoes are there in a submarine? Generally, there are at most 6, 4 in the front and 2 in the back. Based on the locations of the two transport ships, Nagamo inferred that the submarine should have used front and rear torpedoes at the same time to complete this double kill!

"This tm is a talent." Although it is an enemy, he attacked two targets at the same time in less than 3 minutes and achieved success. Nanyun had to say admiration in his heart!

Well, if you estimate it well, the remaining number of torpedoes on this submarine will definitely not exceed 2 rounds! In other words, the shark that has just been hunted should be in a weak period, and the opponent's attack power has been reduced to the minimum. If the torpedo tube needs to be reloaded, it will take about 20 to 40 minutes! So when an attack is launched at this time, it is obvious that the destroyers on the water have the advantage!

Underwater, the speed of a submarine is generally 4 to 5 knots, which is the most economical, which also means that the submarine's movement speed underwater is actually not as fast as a bicycle... Therefore, in this kind of combat situation, Tadonico Nagamoto has a great probability of destroying his opponent through deep-water bomb attacks.

Never underestimate the power of deep-water bombs. Take the Japanese Type 88 deep-water bomb as an example. With a charge of 148kg and a detonation depth of 15 to 25 meters, if the submarine is within a range of 150 to 250 meters, then there is almost no damage. If the explosion distance is within a range of 50 to 100 meters, it may cause some damage to the submarine, such as moderate water seepage at the willow nails on the submarine's shell. The battery pack may be damaged. If it is close to 19 meters, the submarine will have a large-scale water inlet, and the valves inside and outside the submarine will also have serious water leakage, and the battery pack will be severely damaged, and it is possible that it will not be able to submarine. If it explodes at a distance of 10 meters, then good. I wish you good luck all the way, the inner and outer shells of the submarine will be directly destroyed, and the submarine will shoot ggs!

The setting of Nagamoto Tadaichi's deep bombs is also very particular. The detonation time was set earlier because the submarine had just dived, and if the other party had torpedo, they might want to bite back and cover the detonation depth to 15 meters, then forced the other party to drop to the periscope to ensure safety. In this era, submarines also did not have active sonar... The hydrophone was not that easy to use, so after diving to a depth of 20 meters, the submarine also knew nothing about the outside world.
Chapter completed!