Strictly speaking, submarines during World War II can only be regarded as "warships that can penetrate underwater."

In the current era, submarines use diesel or gasoline engines when sailing on the surface, semi-submersible and snorkel. Only after they completely submerge underwater will they use batteries.

Underwater diving is not only extremely slow, but also has limited battery power and only allows submarines to sail for dozens of nautical miles, and then they must float to the surface to charge.

Needless to mention submarines during World War II, modern conventional powered submarines still use batteries when sailing underwater.

That is, conventional powered submarines using fuel cells that have emerged in the past decade have improved in this regard, and can sail continuously for hundreds of nautical miles without charging underwater.

However, compared to nuclear-powered submarines that can sail underwater almost indefinitely, modern conventional submarines also need to surface frequently.

In addition, the sonar of the submarine was relatively backward during World War II and was passive sonar. It had limited detection capabilities and could not accurately locate the other party.

Therefore, during World War II, the submarines could only obtain the target distance, speed and heading data necessary for launching torpedoes through visual search, and then set the torpedoes to be launched, and finally launch the torpedoes.

At the same time, in addition, the torpedo did not have a guidance system during World War II. It is almost impossible to hit the active target under the water with a direct torpedo in a completely submersible state.

Therefore, in the current era, submarines generally only dive underwater when they avoid the opponent's anti-submarine force or covert attacks, and are in a surface navigation state at other times.

Therefore, under the influence of these comprehensive factors, the Japanese submarine troops naturally surfaced before they could launch effective attacks.

When these submarines lurking in the dark and sea water emerged and launched an attack, they were naturally exposed to the Allied radar detection screen and soon changed from hunters to hunted people.

When the melee began, the Allies had no scruples, and all anti-submarine measures were used. Under the combined action of raging flames, flares, and lighting detection lights, the surrounding waters suddenly turned into daylight.

Not only were the warning anti-submarine war units outside the Allied forces exposed, but the Japanese submarines in the dark corners also had nowhere to hide.

Faced with this situation, the Japanese submarine troops also took the initiative and fired torpedoes at the Allied ships in the distance.

All torpedoes on the submarine fire at the same time before launching, and the crazy output of life is like a torpedo that is a cabbage that costs money.

There is no way. Although torpedoes are expensive and expensive, now it is time to fight hard, the Japanese submarines are no longer willing to care about their mercy.

Because they only know that if they cannot make the maximum output in the shortest time, they are likely to be sunk to the bottom of the sea with these torpedoes along with the submarine.

Soon, the Type 95 torpedoes sprinting at high speed rushed out of the torpedo launch tube, and then shaved a series of death waves on the sea surface.

The official name of the submarine in the Japanese Navy is "submersible ship".

Unlike its allies, Germany, which usually uses submarines for traffic line sabotage operations, the Japanese Navy's submersible forces are like mines, which are anti-ship forces in "gradually decreasing" combat.

The design aims to ambush the designated location in the Eastern Pacific after the outbreak of the Japan-US War, waiting for an opportunity to attack reinforcements from the United States to the Central Pacific region.

For this reason, although Japan built more than 100 large and small submarines during World War II (including the largest I-400-carrying submarine in the world at that time), and had sunk the U.S. aircraft carrier Hornet and several cruisers, it did not perform at all in the battle of breaking the war.

It is also because of this kind of ideological and tactic constraint that at this moment, these Japanese submarines still chose to fight head-on.

But it has to be said that one man is desperate and a hundred men are invincible. At this moment, the power of the Japanese submarine force is indeed very powerful, posing a great threat to the Allied fleet.

"I'm going to buy it! Quickly fill the left rudder! fill the left rudder!"

"The damn torpedo is here again! The right rudder is full!"

"No! The Japanese submarine is going to fight to the death!"

Seeing the vast torpedoes attacking wildly on the dim sea, the Allied officers and soldiers on each ship were all blown up, and a stream of cold air hit all over their bodies.

These small-tonnage ships cannot withstand the attack of torpedoes at all. Even if they are just hit, the result will be that the ship will be destroyed and the people will be killed.

Even though the Hu Ben Army is equipped with sufficient advanced and complete life-saving facilities and equipment, if the ship sinks too quickly, it will still be in danger of life.

What's more, these young sailors have long regarded their ships as their homes and their closest comrades-in-arms, and they are definitely likely to watch their comrades-in-arms be destroyed.

So under the strong desire to survive, the ships turned around and avoided the rudder as quickly as possible, and it was difficult for a moment to take care of the Japanese submarines that were firing torpedoes in the distance.

"Roar up and sank these dogs!"

"Little Japanese, I'm your ancestors of eighteen generations!"

Of course, the exceptions of those anti-submarine aircraft and anti-submarine helicopters that have taken off the ship were all red-eyed, and they are now killing the nearest Japanese submarines as fast as possible, and doing their best to kill these dangerous guys!

When the target was locked but the plane had not yet arrived in front of the submarine, the aviation machine guns and aviation runs on the plane roared, forming dazzling beams of light in the air.

"Baga Road!"

"Diet, damn!"

Faced with the allied anti-submarine aircraft, the Japanese submarines still fought to the death. The anti-aircraft machine guns and anti-aircraft artillery sprayed out long flames and fired extremely frantically!

In an instant, the sound of cannons and explosions continued to explode like fried beans! Under the simple and crude life-and-death confrontation, allied ships and Japanese submarines experienced one after another.

A ball of dazzling fireballs kept soaring into the sky, dispelling the surrounding darkness from afar, and bursting out the life fireworks of blood and fire.

After more than an hour, the sound of gunfire explosions gradually stopped.

After an extremely fierce life-and-death battle, the Allies accumulated serious casualties of 1 light cruiser, 6 destroyers, 4 frigates, 5 helicopters and 2 anti-submarine aircraft, and sank a total of 23 Japanese submarines and severely damaged the other 5.

"Did Nani? Did he lose 23 submarines in total? Five more were hit hard?"

After receiving the final news of the submarine war, Yamamoto Iroku couldn't help feeling dizzy.

In current time and space, the Japanese Navy had 57 submarines when the Pacific War broke out. So far, the Japanese combined fleet has only 102 submarines.
Chapter completed!