The 558 submarine, which had newly returned to the American route, quickly dived to the 120I spear, and the combat order was also issued, and all the crew members entered combat positions. Next, you can only wait patiently. At this time, no one was sure whether they were ahead of the American army, that is, whether they could successfully ambush the American fleet. According to Wen Haomao's judgment, it will be an hour at most, and if there is no contact within this hour, then he will miss the opportunity to ambush the US fleet.

In fact, at that time, the anti-submarine turn time of the Atlantic Fleet was 2 hours, and Wen Haomao wasted 4 hours in order to send a telegram, and during this period, the Atlantic Fleet made exactly two anti-submarine turns. In other words, when Wen Haomao returned to the US military route, the Atlantic Fleet was conducting a large-scale anti-submarine turn. At that time, the 558 submarine was very close to the Atlantic Fleet, and not directly south of the Atlantic Fleet, but to the southeast of the Atlantic Fleet, and the Atlantic Fleet, having completed the anti-submarine evasion turn, was returning to its original course.

At 5:45, about 10 minutes after the 558 submarine arrived at the ambush point, the listeners sent out a report of contact with the Atlantic Fleet and judged the general direction of the enemy fleet.

"Southeast?" Wen Haomao was also surprised, "Can you judge the approximate course of the enemy fleet?" ”

"Maybe, but it will take time." The listener was also a little depressed, the new listening system had to allow the submarine to be on the course of the enemy fleet before it could judge the exact course of the enemy fleet, if the enemy fleet was not coming towards the submarine. It will be difficult to accurately determine the course of the enemy fleet. At that time, most experienced listeners could roughly judge the course of the enemy fleet based on the position of the enemy fleet at two points in time, but this method was relatively primitive, and the results obtained could not be very accurate.

Five minutes later, the listener reported the measurements. The course of the American fleet is 210, and the deviation is about 10 degrees.

"In other words, the U.S. fleet is sailing south of us, and presumably they have just completed their anti-submarine turn and are now returning to their original course." Wen Haomao marked the course of the US fleet on the chart. "We can maneuver south, and if we don't get detected, in half an hour, we can reach the next turning point of the U.S. fleet, and then take advantage of the U.S. fleet's turn to attack."

"It is necessary to ensure the success of the attack. We have to get into the inner anti-submarine patrol network of the fleet, and if the location is not good, the ambush will not be much better. "The chief engineer still advocates a bold sneak attack.

"Yes, the closer the better, and when the time comes, we don't even need to think about whether the torpedo can hit the enemy ship!" The gunners were also in favor of this approach. As long as the ambush was within 1000 yards, almost no large battleship would be able to avoid the Type 650 torpedo!

Wen Haomao looked at the second officer. The four of them on the submarine were officers with decision-making power and suggestion power.

"We have already sent a telegram, if we can fight out one or two aircraft carriers of the other side, it will be worth it!" This time, the second officer was also much more active.

"Then do it, rush over first, and then decide how to fight depending on the situation!"

As soon as it was said and done, the 558 submarine immediately descended to a depth of 220 while accelerating to the south. At this time, the batteries on the submarine were about two-thirds charged, after half an hour at full speed. There is still enough electrical energy to ensure that the submarine can get rid of the US destroyer after completing the sneak attack.

Within half an hour, the officers and men in the interior of the submarine were a little nervous, mainly because when the thrusters were spinning at full speed, the noise emitted was quite loud, and if the US fleet's antisubmarine net was spread wide enough, as long as there was a destroyer nearby, and the destroyer's antisubmarine listener was wearing headphones, the submarine sailing at full speed under the surface of the sea would be spotted several nautical miles away. This was also a problem that existed in all the "C" class submarines and the German XXI submarines at that time, and it was not a last resort. Submarine captains rarely use their underwater speed to quickly approach enemy ships, preferring to approach them slowly. In order to guarantee that the submarine would not be detected by enemy destroyers before firing torpedoes.

"Colonel, arrived at the intended position!"

"Speed 4,120 meters deep! ["Check the torpedo tubes, as well as the state of the torpedoes, and be ready for battle!"]

The color of the lights inside the submarine immediately changed, and the red light told every crew that the battle had begun, and that they were ambushing not American transport ships, but a large fleet.

"Speed

"Depth

Wen Haomao glanced at the two meters of depth and speed, and the chief engineer's control was in place. At this time, the listener also raised his arms, and Wen Haomao immediately walked over.

"Distance 12000,16,.u|fen," about 15 minutes contact. ”

"Be quiet!" Wen Haomao shouted at the second officer, and at the same time picked up the spare earphone.

The U.S. fleet was approaching, and it was not accelerating, and more importantly, there were no destroyers moving forward, which gave Wen Haomao hope. At that time, he had already guessed that when the US fleet was making an anti-submarine turn, its destroyers in the outer areas of activity needed to sail farther, and it was difficult to catch up with the speed of the fleet's turn without accelerating, and after the destroyers accelerated, it would be difficult to detect submarines under the sea surface, so it would be difficult to catch up, and thus the fleet would be left behind, and only when the fleet returned to its original course could the destroyers reach the anti-submarine position from the new. And now the U.S. fleet has not returned to its original route, so the destroyers operating on the periphery have not caught up, which allows Wen Haomao to easily enter the inner layer of the fleet, and then, he only needs to avoid those destroyers who are close to protecting the aircraft carrier, and he can look for opportunities to launch submarines.

"Colonel, distance 4500, four propellers, face!"

Wen Haomao nodded, he also heard that the obvious noise was made by the aircraft carrier, and it was very similar to the noise made by the aircraft carrier he killed last time, it must be an "Essex" class aircraft carrier.

The U.S. fleet is still approaching and will soon return to its original course. Wen Haomao had only one chance, and that was to launch a torpedo when the escort warships in the inner layer of the US fleet were turning, and to take advantage of the few minutes when the enemy aircraft carrier turned back to its original course and could not avoid the torpedo. As long as this opportunity is seized, then it is impossible for any aircraft carrier to avoid the six aircraft carriers that fan in, and when the time comes, as long as one torpedo hits, it can severely damage the aircraft carrier, if it can hit two

words, it is very likely to sink the aircraft carrier.

"Six torpedoes are ready for launch!" Wen Haomao walked quickly to the periscope's side, "Ready to float to the periscope depth, damn, I don't know if our luck is so good this time!" ”

"The torpedo is ready!" The gunners immediately shouted.

The chief engineer paid nervous attention to the depth gauge. "Reach periscope depth!"

Wen Haospear let out a sigh, and when he saw Tingsheng pressing a thumbs up to him, he held the grips on both sides of the periscope eyepiece. In fact, after entering the interior of the enemy fleet, it is already difficult to judge whether there are destroyers in the vicinity by sound, mainly because there are too many noise sources, and they are too close, and it is difficult to judge a destroyer and a cruiser from many noise sources when relying only on human ears. In other words, in this case, Wen Haospear must risk floating up, and then stretch out the periscope and aim at the enemy aircraft carrier. This was one of the main reasons why many captains chose to attack enemy ships at night, because the night could cover the submarines.

After the hydraulic motor that drove the periscope to rise stopped, Wen Haomao quickly put his eyes on the eyepiece of the periscope, and then quickly rotated around the axis of the periscope, he first used a wide-angle lens to observe the surrounding sea area, and dozens of large and small warships on the sea surface made Wen Haomao feel a little nervous. After determining that there was basically no danger, he switched into an attack periscope and prepared to aim at the nearest carrier. Just as he was turning the periscope and looking for his target, a flash of light in the distance caught his attention. Then came a few more flashes. Wen Haomao hesitated for a moment, and then he reacted suddenly.

"Urgent dive!"

"Shelling!" Almost at the same time, the listener also screamed, followed by the loud sound of a cannonball falling on the sea above the submarine and exploding.

"Fifteen at the beginning and fifteen at the end. The front ballast tanks are all filled with water, and the main engine is running at full speed! ”

The 558 submarine was like a huge iron pipe, head-down and tail-up, head-down, head-up, head-down.

Wen Haomao grabbed the handrail next to him, and at the same time wiped the sweat on his forehead.

"Sonar contact, we've been discovered!"

The low-frequency sonar waves that slapped on the submarine were quite shocking, and also made every officer and soldier in the submarine feel extremely nervous. When the submarines of the Imperial Navy were attacked by American destroyers, the survival rate was less than fifty percent!

"To 250 depths, one-third of the power of the main engine. Right full rudder. Wen Haomao bypassed the chief engineer and gave the order directly.

The 558 submarine began to turn with full rudder at the same time as diving, and the submarine captain at that time generally had to avoid these two evasions at the same time, at least not at full speed when diving to the ground, which could easily cause the submarine to capsize in the sea. But now there is no time for Wen Haomao to complete every evasion move alone.

"New heading 60, speed 8:

The chief engineer nodded, obviously. Wen Haomao was ready to flee for his life, and all everyone could think of at that time was to flee for his life.

"Depth charges!" Before the submarine could complete its turn, the listener shouted.

Compared to the sound of sonar slapping, the sound of depth charges entering the water is quite faint, but it is extremely obvious, which is the most feared ground sound of any submarine listener, because it means that the destroyer has roughly judged the position of the submarine and launched an attack.

"Right full rudder, full speed ahead!"

The loud explosion almost drowned out the sound of Wen Hao's spear. And the sound was already quite muffled when it came into the interior of the submarine. Just when Wen Haomao had not yet given the second order, the second round of explosions came, this time much closer, and the submarine shook violently, several pipes were cracked, and high-pressure seawater was immediately sprayed out, and the two sailors nearby immediately took out the prepared tools, and the gun officer quickly rushed over, ready to screw the pipe valve to stop the seawater from pouring in. The attacks of the US destroyers have not stopped. At least several destroyers were operating in the vicinity. Wen Haomao also kept giving orders to turn. At that time, what scared Wen Haospear the most was not the honest depth charges dropped by the stern of the destroyer, but the hedgehog bombs with rocket boosters. Although the hedgehog bullet is small and has a charge of only a few kilograms, it is enough to blow through the pressure-resistant shell of the submarine, so that the submarine will never be able to float on the surface.

"Two-thirds left-hand rudder, one-third power, down to 280!"

The chief engineer glanced at Wen Haomao in surprise, the limit depth of the submarine is 250 meters, and beyond 250, there is no reading on the depth gauge. Wen Haomao nodded, didn't say anything, rather than being killed, he was more willing to bet on whether the thickness of the pressure-resistant shell could withstand the huge water pressure of 280 places.

"The first ten, the last five, one-third of the power ......"

Before the chief engineer finished speaking, another round of explosions sounded, and this time the distance was much closer, the sound of the support ground was not so strong, and the vibration of the submarine was much more violent, just when Wen Haomao suspected that the US military had used hedgehog bombs, the submarine shook violently, and then he felt a biting cold, and the submarine was hit by a depth charge!

"The torpedo compartment is flooded!"

"Close the valve and empty the bow ballast tank!" The chief engineer reacted first and directly gave the most important order to rescue the submarine.

"All unrelated personnel go to the stern!" Wen Haomao also immediately gave an order, "+ The water tank is all filled with water, damn, I don't want to die here!" ”

At this time, the most important thing is to ensure that the submarine does not continue to sink, and at the same time to avoid the first tilt. The "C" class submarine has six watertight compartments, and its design index requires that the submarine be guaranteed to be unsinkable after any of the watertight compartments are flooded. However, if the weight of the submarine cannot be quickly controlled and the balance of the submarine cannot be maintained, the submarine will sink even if the other compartments are not flooded.

The submarine was still sinking slowly, and the pressure-resistant shell made a screeching sound, as if it might be crushed by the sea at any time, Wen Haomao was already sweating profusely at this time, and began to worry that this time it would be completely finished. Suddenly, the submarine shook violently, but there was no explosion, and when everyone was surprised, Wen Hao reacted violently, and the submarine hit the bottom of the sea!

The attack of the US destroyer continued, but at this time the submarine was already hiding under the thermosphere, and the active sonar on the destroyer could not continue to lock onto the submarine, and the depth charges dropped were also deviated a lot. But the question is, how can the 558 submarine float up?