Trapp's speculation was correct, it was true that a submarine had attacked the escorting light cruiser, but the 27-knot speed of the torpedoes fired at a longer distance also gave the target enough time to respond, so it was not surprising that the attack would be fruitless.

However, in the current era without sonar, it is not easy to catch a submarine that has dived into the water, and all the destroyer can do is immediately rush to the place where the torpedo track appears, drop a large pile of depth charges nearby, and hope that the submarine will be slow and has not yet gone far.

Of course, the depth charges dropped during the exercise will not explode, and the decision on whether to sink a submarine is to compare the destroyer's navigation chart and the position and depth of the depth charge with the submarine's navigation chart after the exercise, and if the destroyer's course coincides with the submarine's route, and the position of the destroyer dropping the depth charge coincides with the position of the submarine at that time, and to judge that the submarine was sunk.

Obviously, as long as the submarine is submerged to the maximum depth and then changes course several times, the possibility of the submarine being sunk is extremely low, but in any case, the fact that the destroyer is spinning on its own head can still bring great pressure to the officers and men of the submarine, and under normal circumstances, it can still have the effect of driving away.

However, when the fleet's attention was drawn away, it became a good opportunity for the Ub-67 to break through. Although the news of the submarine attack made the mood of the entire fleet even more tense, the soldiers on the ship's watchtower holding binoculars could not see the Ub-67 that was quietly breaking in.

At this time, Trapp was also a little apprehensive, and the Ub-67, which had put away its periscope, did not know what the situation was on the water, and if the fleet changed course after encountering an attack, it might not be able to get an ideal attack position when it surfaced again.

The submarine was quietly approaching the fleet, and the entire command cabin was also silent, and the atmosphere inside the boat was becoming more and more tense. Although they knew that it was impossible for the ships above to hear the sound, everyone still didn't dare to come out of the atmosphere like thieves.

When the submarine finally arrived at its intended position, Trapp shouted, "Engine-room stop!" Float to periscope height! The bow torpedo tube is flooded! ”

The captain's order was carried out in an orderly manner, "Stop in the engine room!" No. 1 and No. 5 water tank drainage! Ascend to periscope height! The bow torpedo tube is flooded! The voice of the command echoed through the small cabin.

"Raise the periscope!"

No one in the fleet on the surface noticed a pipe quietly rising on the water, the periscope raised in the parked state did not bring traces on the sea, and no one realized that the killing machine was coming.

At this time, Trapp, who turned the periscope slightly and observed the sea, was extremely excited. In the periscope, a battleship like a mountain was approaching in front of itself. Trapp let go of the leading Wittelsbach class, as soon as the speed of the battleships in the queue was limited, the space for evasion was smaller, and it was easy to attack, and the flag of the commander of the Mediterranean Fleet fluttering on the leading battleship was also an important reason.

Unlike future submarines, the periscopes of current submarines have not yet separately distinguished a variety of equipment such as search periscopes, attack periscopes, and even optoelectronic masts. There was only one periscope in the small hull to serve both purposes, and after adjusting the periscope from search mode to attack mode, Trapp set his sights on the two battleships in the third and fourth positions: "Torpedo compartments, torpedo tubes No. 1 to No. 4 open the outer hatches!" Set depth of 3 meters, ready for launch! ”

The outer hatches of the torpedo tubes, which had already been filled with water, opened, only a few strings of small bubbles emerged, and the submarine, lurking at a depth of 12 meters, began to show its fangs.

"The torpedo compartment is ready!"

"Lower the periscope!" After calculating the secret position and determining the design window, Trapp already had a certainty in his heart: "No. 1 and No. 2 torpedo tubes are launched!" ”

The torpedo chief closed the brake with all his might: "Torpedo No. 1 has been fired!" ”。 The hissing of gushing high-pressure air resounded throughout the submarine, 550 mm in diameter. The heavy torpedo, which was nearly 8 meters long, was pushed out of the boat by huge air pressure, then paused in the seawater, and then the engine that began to work drove the propeller to run at high speed, accompanied by the scream of the propeller, and swooped straight towards the target 2,000 meters away at a high speed of 37 knots.

"Torpedo No. 2 has been fired!" Immediately after that, a second torpedo was again sprayed with a hissing sound.

"Left rudder 15! Bicycle half speed! "No sooner had the second torpedo been fired than Trapp loudly ordered the submarine to adjust its course. Then stare at your watch and mentally calculate the timing of your attack on your second target. At such a close distance, in the face of a torpedo coming straight at a speed of 37 knots, the No. 1 target, which was sailing at a speed of only 9 knots, could not escape at all.

But now it's daytime, and when the torpedo rises close to the surface, the track will be spotted, and raising the periscope again at this time is equivalent to being in an exposed position. Therefore, Trapp can only determine the timing of the attack on Target 2 by calculation.

When the time came for the calculations in his mind, Trapp shouted, "Engine room stop!" Torpedo tubes No. 3 and No. 4 are launched! ”

After the two torpedoes were fired again, Trapp did not hesitate to order again: "Double car full speed, keep course, dive sharply!" Dive to the maximum depth and fill the stern torpedo tubes with water! Reloading of the bow torpedo tubes! ”

The inside of the UB-67 was immediately busy, the bow torpedo compartment was nervously loading the heavy torpedoes into the launch tubes again, and the high-pressure gas cylinders needed to be filled again, the bow tank No. 1 began to fill with water rapidly, and the submarine began to tilt down in order to dive as fast as possible. Then the Ub-67 will have to go diagonally through the entire underside of the fleet, and the opponent above it will be a mess, which is really exciting.

However, what made the crew feel that the fly in the ointment was that the training torpedo did not have a warhead, so the crew usually liked to look at the navigation clock hanging on the bulkhead during training, silently for a few seconds in their hearts, and then listen to the excitement of cheering after the dull sound of underwater explosions transmitted to the submarine through the sea water and transmitted to each compartment by shaking the hull of the boat.

However, at this time, the fleet on the surface did not have much to think about this, and the four torpedo tracks that appeared at such a close distance and pounced at different angles caused the whole fleet to be confused, but as Trapp expected, the flagship at the head began to speed up, but although the battleship in the middle of the team struggled to twist the hull, it was clear that this had no effect.

In fact, with the power of the G7 torpedo, whether the underwater mine protection ability of the Wittelsbach class can withstand one really depends on luck, so although it is judged to be seriously injured according to the exercise, the faces of the ship's personnel are still dead, because if this is a real battle, I estimate that I should jump into the sea to escape now.

The light cruiser and destroyer "blew up" in a 5-kilometer radius where the torpedo track was first discovered, but the Ub-67 did not turn around and run away, but rushed directly to the other side of the fleet.

At this time, the Misudis, who was following the team, did not know what was happening. In order to achieve a realistic effect of the exercise, in order to avoid the "sunken" and "seriously damaged" ships in front, the second half of the fleet began to adjust its course, and people on the sunken battleships began to jump into the sea, and the escorting destroyers approached and began to "rescue" those who fell into the water, or tried to tow the "seriously injured ships that lost their ability to navigate" and pick up the personnel on the "injured" ships, a series of changes made the Ottomans unable to keep up with the rhythm at all.

When he received a telegram from the flagship saying that the two battleships had been attacked by a submarine and that the two battleships were sunk and one was damaged, he panicked in hindsight. After all, it was the periphery that was originally attacked by submarines, and the Ottomans felt very relieved while seeing the German Navy conducting anti-submarine operations in an orderly manner, after all, no one has regarded the submarine as a powerful weapon so far, but just a coward who does not enter the stream with weapons.

Historically, after the U-9 submarine sank three British armored cruisers in a battle on September 22, 1914, the British did not want to believe that the submarine did it, denied the German propaganda, and insisted that the three armored cruisers accidentally broke into a minefield.

So naturally, the Ottomans don't think that submarines are much of a threat now, and the performance of German escort ships proves this point at first, but it didn't take long for the situation to take a turn for the worse, and this 180-degree turn made the Ottomans unable to react at all, but soon they themselves will experience the power of submarines for themselves.

Passing through the bottom of the fleet to the other end, Ub-67 was about to use the torpedo tubes in the stern to do another job, but when the Ub-67 re-raised its periscope, it found that it had lost the best position to attack the fleet that had begun to pick up speed by avoiding the ships in front of it.

However, the situation was still unclear at the end of the team, and the Misudis, which was already slow, became a good target.

So the torpedo of the aft torpedo tube of the Ub-67 was given to the close Ottoman companion, and the torpedo track that appeared on his side scared the Ottomans enough, but they couldn't hide from it, so the Misudis had a close encounter with the G7.

Needless to say, the Misudis was immediately condemned to be sunk, and then the Ottoman officers and soldiers had to stage a scene of jumping into the sea and were tossed hard.

However, in the face of the fleet that began to speed up, Ub-67, which thought that it had lost the best opportunity to continue the attack, quietly left, and gently waved its sleeves, hiding its merit and fame. (To be continued......)