The honor and pride of the U.S. Navy made Jacob already determined that he would never lose to the Japanese monkeys!

Because of the use of HY80 special high-strength weldable ship steel imported from Donghua Empire, combined with the unique hull structure design, the maximum safety of the Whitefish-class submarine has reached 324 meters! It is 24 meters deeper than the so-called world's most advanced XXI submarine!

It was by taking advantage of this extreme depth that the "Heavy Tooth Bream" was able to evade the tracking of the large D-type submarine in the Sea of Japan, giving Jacob a chance to turn defeat into victory.

"Captain, we're out of signal!" The sonar officer suddenly said: "That Japanese submarine may have gone far!" ”

"What if they, like us, sit somewhere waiting for us to rise?" Jacob shook his head cautiously and said, "Now it's all about patience!" Whoever can't hold his breath first loses. Keep listening! ”

Crowle, a submarine staff officer who had been staring at the nautical chart research beside him, suddenly reminded in a low voice: "Captain, the XXI submarine has an underwater endurance of 285 nautical miles, which is three times that of ours!" So we certainly won't be able to consume that Japanese submarine. ”

"Who would have known that the Whitefish class had an underwater endurance of only 95 nautical miles, except for our own people?" Jacob said confidently:

"Even the Donghua Empire didn't know this, and the Japanese monkeys couldn't have known it. Our Whitefish class is almost a third larger than the Japanese XXI boats as a whole, and who can say for sure that our underwater endurance will be worse than that of XXI boats? People often have a subconscious fear of the unknown! ”

Claure hesitated slightly, but finally gritted his teeth and said, "Captain, I must tell you a fact. The bow passive sonar of the XXI submarine has three cross-switchable center frequencies of 1, 3 and 6 Hz, for a single ship range of 20 km and a fleet of 100 km;

The search area is 2*140 degrees, with a resolution of 6 kHz per 1 degree, 3 kHz per 1.5 degrees, and 1 kHz per 4 degrees, with no cross octaves. The bow active sonar has directional and positioning detection functions, and the accuracy can be as high as 1 degree within 8 kilometers! ”

"I certainly know that we have a certain gap in electronic devices." Jacob waved his hand confidently and said, "If it weren't for that, how could we sit down here." Captain Crowle, submarine warfare, in addition to the superiority in equipment technology, is more often than luck and courage.

The XXI submarines of the Japanese Monkey, although they have advanced sonar and radar, so far we are not threatened by the attacking sonar of the opposing side. This is enough to show that Japanese monkeys are a bunch of cowards! They will never dare to attack us unless they want to provoke a war! Captain Crowle, please remember that we are the US Navy, and no country in this world has dared to openly attack the US Navy! ”

After finishing speaking, Jacob seemed to suddenly regain his confidence, waved his hand and said loudly: "The torpedo is ready to continue, float at full speed!" The front compartment has an elevation angle of 5, keep the left rudder 7, and float at full speed! ”

As if infected by the strong self-confidence that Captain Jacob suddenly showed, Crow repeated the captain's command loudly: "The torpedo is ready to continue, the front compartment is at an elevation angle of 5, keep the left rudder 7, and float at full speed!" ”

The mud on the deep-sea cliff writhed its huge body as the slender steel sea beast writhed, causing the waters around the Whitefish-class submarine to become extremely turbid.

……

On the sea, a telegram sent from the 3rd Amphibious Assault Squadron of the Second Fleet of the Royal Navy, Donghua, frightened the Alaska Squadron of the US Navy's Pacific Fleet and the First Fleet of the Combined Fleet of the Japanese Navy, which were 350 nautical miles away from each other in the southwest.

"According to the exact information from our submarine, a Japanese Navy Ukaida D-type submarine inadvertently intruded into the warning waters of the US Navy's 'heavy tooth bream' submarine, and now the two submarines are confronting each other on the bottom of the sea.

In order to avoid unnecessary misunderstandings, the submarines of the Royal Donghua Navy have all moved away from this area of naval conflict between the United States and Japan. Our fleet has sent anti-submarine helicopters to closely monitor the further development of the situation.

I ask the responsible persons of the US Navy and the Japanese Navy to send a telegram to your respective submarines, asking them to exercise restraint and never make an irreparable mistake because of impulsiveness! Wang Jingchun, commander of the 3rd Amphibious Assault Squadron of the Second Fleet of the Royal Navy of Donghua, 20:45 on August 7, 1939. ”

U.S. Navy submarines are fighting against Japanese Navy submarines?!

This news is like a drop of water dripping into a hot oil pan.

The British and French governments jumped up and down as if they had been beaten up, shouting that the US allies must teach the Japanese monkeys a hard lesson, and even if the United States did not participate in the war, it should fulfill its obligations as allies and find out the true performance of Japanese submarines as the basis for evaluating German submarines.

The German Propaganda Department praised the courage of the Japanese Navy. He claimed that the U.S. Navy had recently launched a new batch of newly developed submarines, which were likely to pose a threat to the interests of the Axis powers, and asked the Japanese Navy to capture the U.S. submarine as much as possible.

In the face of the British, French, German, Italian, and other governments so actively watching the excitement from the sidelines, fanning the wind and lighting the fire, Chester William Nimitz, commander of the Alaska Detachment of the US Navy's Pacific Fleet, and Koga Mineichi, commander of the First Fleet of the Japanese Navy's Combined Fleet, chose to remain silent.

The two submarines that are engaged in a confrontation under the water will certainly not have time to surface and release communication buoys to communicate with the outside world. As a result, both Nimitz and Koga had no choice but to send their respective orders to the "Heavy Tooth Bream" and the I-78 via longwave radio.

Now that the Royal Navy of Donghua has exposed this matter to the outside world, for the honor of the U.S. Navy and the Japanese Navy, Nimitz and Koga Fengichi have both issued similar orders: No matter what the situation is, they must not be forced out of the water by the other side first and become prisoners in disguise!

It has long been no secret that the submarines of various major powers are engaged in confrontation on the bottom of the sea. Not to mention the great powers that are hostile to each other, even the allies will not give up the opportunity to tease their opponents.

As with the current aerial dogfights, submarine engagements are very position-oriented.

If there is not much difference in the performance of the two submarines and the quality of the officers and men is equal, the probability of victory for the side occupying a favorable position is almost 100 percent.

For any submarine, the rear and below are the most vulnerable.

If you are slower than your opponent and you are bitten from behind, the chances of getting rid of the attack are almost zero. If the depth is not as deep as the opponent, and the opponent enters from below, the possibility of turning the situation around is very slim.

The Japanese Navy, which studied under the German submarine tactics study, has basically thoroughly understood the comprehensive performance and tactics of the Haida D-type submarine (XXI-type) submarine in the course of conducting conventional confrontation drills with other types of Japanese submarines.

After suddenly losing the target signal, the commander of the I-78 boat, Matsumura Kanji, clearly realized that the unidentified submarine must have chosen to sit on the bottom and be silent.

During the previous chase, Matsumura discovered that the unidentified submarine was traveling significantly slower underwater than the Imperial Umidai D-type submarine. This made Matsumura feel deeply puzzled.

This unidentified submarine should not be the Kilo-class submarine of the Donghua Royal Navy, or the more mysterious Seawolf-class submarine.

If it weren't for the submarine in the Donghua Royal Sea, then there was only one possibility for the submarine that appeared in this sea area at this time, and it was the US Navy!

(To be continued.) )