Transmigrated as the Crown Prince

For this secret operation, the crew of their boat underwent rigorous training for half a year, and now even the cook on the boat can skillfully operate these propellers.

"Start taking action!" Prien gave the action order, picked up the diving suit that had been prepared and started to put it on.

The first mate on the side dissuaded with some worry. "Captain, it's better for me to go first. If there is any accident, I need your command."

"Don't worry." Pulian patted him on the shoulder. "You already said that the heroic spirits of our ancestors will protect us, what surprise could happen?" Then he said seriously. "But just in case, you go and load the explosives. We are carrying so much advanced equipment this time, we must not fall into the hands of the British."

"Yes!" The first mate nodded, and led a few people to load explosives in the torpedo room, power room and other places.

The first batch of operational team members changed into diving suits, and the submarine slowly rose to the hatch and emerged from the water. Although they could climb out of the torpedo tubes, they not only carried oxygen equipment but also bulky night vision goggles. For the sake of convenience, you still have to enter and exit through the hatch. Anyway, it was late at night. Unless a searchlight happened to shine here, no one would spot their submarine in the darkness.

"Let's go!" A group of twelve people walked out of the hatch of the submarine and jumped into the sea. Pullien couldn't help but shiver after entering the water. Although it was summer, the water at night was still a bit cold.

The twelve men were divided into four groups and swam to the sides of the submarine. Prien took out the wrench from his waist, fumbled for the nut holding the propeller, and began to disassemble it.

Although German engineers tried to make the disassembly process as simple as possible, each propeller was fixed with more than thirty nuts, and it still took a lot of effort to disassemble. Fortunately, there are three people in each group, and each person only needs to be responsible for a dozen nuts.

Removing the propeller, they pushed it directly in front of the submarine's torpedo launch port. At this time, the sailors in the boat had pushed the tactical bomb head halfway out of the torpedo launch port.

This step is not easy either. To launch an ordinary torpedo, you need to use high-pressure air to "shoot" the torpedo; however, this tactical bombhead is not a torpedo. The sailor can only climb into the torpedo launch tube with the warhead, close the back cover and inject seawater, then open the front cover, and enter the launch tube. The sailor slowly pushed the warhead out of the launch tube.

Pullien and others spent a lot of effort to fix the warhead in front of the propeller. Fortunately, these warheads have buoyancy devices, otherwise they would have to sink to the bottom of the sea with it.

After taking a few breaths, Pullien sat in the front seat of the propeller, responsible for controlling the speed, direction, and elevation of the propeller; another sailor sat behind; then the four groups headed towards their respective targets.

The maximum speed of this propeller can only be maintained at 3 knots. If the speed is too high, it will not only affect the range, but may also throw the operator off his seat. When driving under normal conditions, the operator can just keep their chin above the water. If they encounter patrol ships around them, they have to dive underwater and sail.

When the thruster driven by Pullien was more than 50 meters away from the target warship, he controlled the flooding valve and began to dive slowly.

Soon their heads were submerged too. He saw that the luminous depth gauge on the steering wheel had shown 15 meters, so he closed the flooding valve and drove forward slowly.

The darkness became deeper. Although the night vision goggles they wore were waterproof and could be used underwater, after all, these night vision goggles were not the high-tech advanced equipment of later generations, and the density of sea water is much greater than the density of air. , the effect of night vision can only be said to be better than nothing.

After driving forward for some distance, the sailor in the back seat tapped him on the shoulder. Knowing that he had arrived under the target ship, he turned off the motor, opened the drain valve, and allowed the propeller to rise slowly.

He had to be particularly careful during this process. There were various things attached to the bottom of the boat. If he was not careful, his wetsuit could be torn, causing seawater to leak in. They had encountered this situation many times during training, and they did not dare to be careless at this time.

After a while, he was tapped twice on the shoulder, and the sailor behind found the keel.

The keel is a longitudinal member that connects the bow pillar and the stern pillar in the center of the base of the hull. Its main function is to bear load, bear the longitudinal bending moment of the hull, and ensure the structural strength of the ship. Therefore, once the keel is severely damaged, the ship will either be directly broken into two pieces, or it will be dead or injured. Even if it wants to be repaired, it will not be possible for more than a year and a half.

The sailor fixed a special clamp to the keel and pulled out a rope to secure the second clamp; then the two worked together to wrap the rope around the hook of the warhead and separate it from the propeller.

Without this weight, the propeller floated up uncontrollably. Pullien hurriedly opened the flooding valve to avoid the collision between the propeller and the bottom of the ship.

They set the time fuse on the warhead to six hours later, when the warhead containing 450 kilograms of explosives exploded, destroying the sea giant above them. The fuse clock ticked by the second, and the sailor climbed back into the back seat of the propeller. Pullion started the motor and swam out from under the big ship, rising slowly back to the submarine.

There was a flashing infrared beacon on the top of the submarine, so they easily found the submarine's location. Because it is infrared, it will not be detected by anyone. Only those of them wearing night vision devices can see it.

The first mate was already waiting there with the second batch of action teams. "Captain, are you okay?"

Although he was exhausted after this trip, Prien still showed an excited smile. "It's okay, act quickly, we don't have much time."

It wasn't until the second group of action teams left that Pullien returned to the cabin. The first thing he did was to take off his wet diving suit, wrap himself in a blanket, and drink a few sips of steaming coffee.

I looked at the time, it was now three twenty-seven.

They arrived at the entrance to the Kakok Strait at 1:50 in the morning. It took nearly an hour to cross the strait and entered Scapa Flow at 2:30. They removed the propellers, loaded the warheads, and went to the enemy ships. It took more than an hour to send a big gift and return. Although there is no step to dismantle the propellers from the second batch, they can just load the bombs and leave; but they can only send out one more batch before dawn; after that, they have to take advantage of the darkness before dawn to evacuate.

But three waves are a lot. If nothing unexpected happens in the middle, they can harvest a total of 12 large warships; even if each ship has a tonnage of 10,000 tons, it is still 120,000 tons; this will be the highest tonnage sunk by a single ship in a row so far. !

They will create an unprecedented miracle!