In this era, the only way for a submarine to attack was to use a periscope to aim, and under the captain's instructions, the torpedo came out of the water and relied on the captain's experience to attack the target.

If there were no periscopes to aim, no attack would have been possible, and the Soviet Union did not have advanced German sound-guided torpedoes, only direct-sailing torpedoes, just like striking the enemy with a sniper rifle.

And now, the despicable means adopted by the Germans in this way have only one purpose, which is to prevent submarines from using periscopes to aim!

In fact, the Germans did it, and in this case, it was possible for anyone who used the periscope to be temporarily invisible, if not permanently blind, and if he wanted to give the order to attack, he had to continuously observe the target and determine the shooting elements, and now this opportunity was gone.

He can't attack the other side, so what will the other side continue to do?

Don't even think about it, of course use deep bombs to blow yourself up!

"Dive to fifty meters!" Bristov shouted loudly, and after regaining his sight, he shook the turntable with his hand and lowered the periscope, and now, for the time being, he could no longer use the periscope, and the Germans would use deep bombs to blow him up.

When the deep bomb is used, there are many restrictions, and the depth of the target must be estimated to explode, and now he is periscope depth, only less than 20 meters, then he can dive to 50 meters, and he can perfectly dodge.

At the same time, after the other party passes, he can quickly float up and sneak attack him from behind the other party.

The battle isn't over yet!

M-class submarines are all small and exquisite, with a displacement of several hundred tons, which makes its movements quite fast and effective, and with the action of the rudder surface, the submarine quickly dives into the water.

At the same time, the entire submarine began to remain silent, the sailors even stood on tiptoe to walk, and the sonar man, who was the focus of the whole boat, wore headphones and listened to the movement on the water.

At a depth of fifty meters, the submarine was flattened, the motor in the tail also stopped, and the whole submarine seemed to be a fish that had stopped swimming in the sea, drifting with the water.

Time is passing little by little, and the fleet on the sea is already approaching.

"Tom, tom!"

In the sonar, the sound of the anti-submarine deep bomb falling into the water was so clear that the sonar officer shouted in a low voice: "The distance is about one nautical mile, and the other side has begun to drop depth charges." ”

After saying that, his heart was counting, one, two, three... When I counted to twenty, I heard the sound of a bomb exploding in the sea.

"The depth of the explosion of the deep bomb is about 50 meters." He did a little math, and he got this terrible number.

"Forward three, dive, immediately dive to a depth of 100 meters!" Bristov shouted loudly.

Fifty meters, the other party is simply the devil! Bristov is now a little incredible, how the commander of the other side, how can he know his current position.

The battle between a submarine and a surface ship is often more like two gamblers, guessing each other's cards in each other's hands.

Since the other party has released flashbangs, it is to make it impossible for them to attack, so it is said that they should still be in the periscope depth, and the depth of 20 meters is the most suitable, and it is enough to dive to 50 meters.

Who knows, the other side actually set the anti-submarine deep bomb to a depth of 50 meters, and the opponent threw the deep bomb like a net, and it was easy to blow up its own side.

If you want to avoid it, you can only continue to dive!

Their multiply-ton submarine is almost the limit of a hundred meters deep.

After receiving his order, the engineer quickly adjusted the power to the forward three position, and the propeller in the tail began to rotate rapidly, and at the same time, in the cabin of the submarine, all the idle people quickly ran towards the cabin in front.

At this time, there is no need to worry about making a sound.

Different from what is on TV, when the deep bomb is released, the deep bomb stirs the sea water and makes all kinds of sounds, which has long covered the noise of the submarine, and then reflects it through the bottom of the sea or something, as long as the deep bomb is used, within an hour, the sonar will not work.

At the same time, if you want to let the submarine dive, there is also a fixed mode, if the submarine is not moving underwater, then it will not be able to achieve the goal of diving at all, it must move first, like an airplane diving.

Only when it moves, the rudder surface has force, and in order to increase the speed of the submarine's dive, it will require additional manpower.

When all the crew ran to the forward compartment and increased the weight of the front compartment, the front would sink and the tail would be upturned, and at the same time, as the tail propeller rotated and pushed the seawater, the submarine began to move downstream, and it sailed downward like a fierce man.

The floor of the submarine has felt noticeably tilted, and when the battery is used, the lights inside the submarine have become extremely dim, and everyone is holding on to the handrails around them, waiting for the unknown fate.

When the depth gauge showed ninety meters, Bristov ordered to level the submarine.

The people in the front cabin began to run to the rear cabin, ready to balance the hull, and at this time, the huge explosion of the anti-submarine deep bomb came from far and near.

"Boom, boom!"

The explosions came and went, continuously, making people listen to the roots of the teeth, the inside of the submarine is a cavity, and the cavity effect will amplify this sound, and it will sound even more terrifying.

No smoking is allowed in the submarine, the sailors do not have any way to relieve this pressure, only the most determined people can survive on the submarine, so even the Soviet Union, which is the most scarce in materials, treats the submariners exceptionally well, and all kinds of supplies will be given priority to the submarine.

Now, in the hands of the sailors, they take the canned food that has just been handed out, pick it open with a knife, and eat it in a big gulp, and the canned beef from the United States tastes very good.

The sound of the explosion, gradually getting louder, indicates that the other party is approaching.

Bristov leaned against the wall of the conning tower, the wound on his head had just been bandaged and was still oozing blood, in a damp submarine it was not easy to heal and even fester, but he didn't care about anything.

He was waiting, and as a submarine commander, he had to be patient.

"Boom!" At this moment, a unique voice reached the submarine.

It wasn't the explosion of an anti-submarine deep bomb, it wasn't the sound of the reflection from the bottom of the sea, it was like a very low sound, like the sound of a huge sea water crushing something.

Bristov's face instantly became ugly. He guessed at once, the M-172 that came with him may be at a depth of fifty meters, and it seems that it was blown up by an anti-submarine depth bomb!