When Hesson gave the order to raise the periscope again, it was only ten minutes after the 21st dive.

In less than ten minutes, 21 advanced 1.4 nautical miles under full sail underwater, and the freighter moved slightly less than 2.5 nautical miles to the port, and the barge from the port approached the freighter nearly 2 nautical miles.

This seems to be a simple and complex calculation problem, with a sensitivity to numbers and strong mental arithmetic ability, Li Ming knows that 21 has basically entered the attack position.

If he is the commander, then he will order the submarine to stop moving forward and wait here quietly for the freighter to enter the best range, then shoot, dive, and evacuate.

But Hexen didn't do that!

"Angle!"

“389！”

"Target No. 1, angle 389, distance 6700!"

After reporting these figures, Hesson turned the periscope clockwise for nearly half a turn.

"Angle!"

“075！”

"Target No. 2, angle 075, distance 9600!"

After that, Hesson and the periscope both turned around in place for a while, and then ordered: "Put away the periscope and change to a third of the course!" ”

Li Ming felt very strange in his heart, if he continued to sail forward, the angle between the submarine and the freighter would become larger and larger, and when the submarine attacked, it would try to make the target close to its own 0 degree angle or 180 degree angle, unless Hessen wanted the submarine to cross the opponent's channel and attack from the other side, or ...... No!

Li Ming immediately overturned this "or" in his heart.

, but anyone who has a **** military common sense knows that the hit rate of shooting on both sides of the side of the ship is the highest, because the target cross-sectional area is the largest, on the contrary, the cross-sectional area of the bow and stern of the ship is the smallest, and the hit rate will be correspondingly reduced if the ** attack is carried out from this angle.

Unless it's close enough!

A few minutes later, what Li Ming thought was impossible was happening step by step, and when Hesson looked through the periscope again, the angle of the No. 1 target had become 293, which means that it was in the port side of the submarine, and the barge was at an angle of 85, almost on the starboard side.

"Sail to a third, turn to 90!"

Hessen's order meant that the submarine would be deflected 80 degrees to its starboard side, meaning that the boat would be aimed in the direction of the barge and the harbor, and the stern would be aimed at the freighter.

What the hell is this guy thinking?

After completing the turn, 21 will be sandwiched between the freighter and the barge, does he want to kill the freighter and the barge with two ** in front and one behind?

No!

Li Ming once again refuted his speculation, because no one would use ** to hit such a small barge of dozens of tons, and its draft is so shallow, most of the ** will pass through its bottom!

After the submarine completed its turn, Hesson immediately ordered the submarine to turn off the motor.

The submarine's cabin soon fell silent, and a faint, somewhat buzzing sound came from outside, which Zhang Hainuo guessed must have come from a freighter in the stern direction.

After the periscope was raised again, the angle of the No. 1 target in Hesson's mouth changed from 273 to 181, a distance of 1,500 yards; The angle of the target No. 2 became 359, which is a bit farther, 4300 yards!

"**Calibration depth 1, maneuver angle 1, tail **ready to shoot!"

Almost didn't have to wait, and the voice of the chief sergeant of the tail ** cabin came from the microphone on the wall of the boat: "The tail ** is ready!" ”

The tail ** shooting tube is equipped with a minimum fixed depth, a gyration angle of 0, and can be shot at any time**, after boarding the boat, Zhang Hainuo also felt very incomprehensible when he learned about Hessen's strange habit from other crew members.

In order to accidentally injure their own ships, some submarines have ** in the ** tube and set the maximum depth, but Hussen just let the tail ** cabin go the opposite way, and the ** in the front 4 ** shooting tubes are set according to the convention.

Time passed by second, and with each passing second, the distance of the freighter would be 10 yards closer, and the atmosphere in the submarine cabin suddenly became extremely dull, and the dreary was somewhat suffocating.

Hesson was still staring intently at the observation port of the periscope, until the second hand on the watch almost turned in a circle, and his voice suddenly exploded: "No. 5**, shoot!" ”

The five 450 mm ** firing tubes on the Type B submarine are arranged in the front four and one in the back, and the No. 5** is the one in the stern firing tube that is on standby!

Li Ming didn't know if the crew of the freighter had already appeared under the water, maybe their captain was calmly directing the ship to evade, maybe those crew members would jump into the water in advance while screaming, but the distance of less than 500 yards made their ship have almost no chance to avoid it, unless this ** missed!

On the periscope side, Hesson didn't plan to witness the ship being hit by **, for him, such a scene may have seen too much!

"Put away the periscope and dive to a depth of 15 meters!"

Twenty seconds later, there was a loud bang from the water, and the explosion** was obviously very close to here, and a very obvious vibration could be felt on the submarine.

At this time, the hanging hearts of the crew finally let go, and everyone high-fived and celebrated, including Zhang Hainuo.

It was also the first time he had tasted victory since coming to this era!

Hesson, the one his peers called "the madman of the sea"

's ace captain, but at this time, he still looked cold and thoughtful.

Yes, Li Ming thought, this battle is far from over.

Did the sailors on that barge see the track of the 21 **?

Will they show the periscope of 21?

After the attack was successful, he didn't evacuate quickly, what did Hesson want to do?

Li Ming was still a little confused, but it occurred to him that it was precisely because the submarines usually shot from the side of the ship** that the British destroyers coming out of the harbor behind would definitely think that the German submarine attacking the freighter was on the side of the ship and was withdrawing in a direction away from the harbor - as long as 21 was quietly lurking here, it would not be easy for the British destroyers to be seen.

In the darkness of the sea, the barge's low viewing angle and limited lighting made it difficult for the sailors above to observe the ** fired at the freighter from thousands of yards away.

Because of this, Hesson would not worry about the position of the barge at 21, on the contrary, the visual error of the British sailors could have caused them to make the wrong judgment that the freighter was sunk by a mine!

With such a deliberate arrangement, with the only ** in the stern of the ship to attack from the front of the freighter, could it be that Hesson's purpose was to make the British make a wrong judgment and pursue in the wrong direction, so that the 21 could safely avoid the attack of those British destroyers?

Looking at Hesson's face, which was more cold than ever, Li Ming had a feeling that this guy was by no means as simple as trying to dodge the attack of the British destroyer here!

Several destroyers then under Hesson's command suddenly began to turn around the left and right flanks of the British army, and the British Elizabeth, the Royal, began to be forced to turn around and turn to avoid encircling the German navy...

Some people say that since the outbreak of the war, all that can be seen in the North Sea is a German ship, but Zhang Hainuo's sentence is not entirely correct, because the day after he left Wilhelmshaven in 171, he encountered another huge man-made object in the northern part of the North Sea - an airship!

Unfortunately, the style and color of the airship suggest that it came from the hostile nation of Great Britain; Luckily, the airship could not pose a direct threat to submarines moving on the sea, and it tried to drop two small **, but it landed thousands of meters away from the three German submarines!

Compared with Li Ming's calmness, the first mate Simon. Warrant Officer Platings looked a little restless and restless.

"What bad luck! Before sailing out of the North Sea, the British appeared! ”

"Don't worry, Simon! It can't hurt us, and we can only report our situation to the base! We'll be able to get rid of it after nightfall! ”

After obtaining the consent of the other party, Zhang Hainuo affectionately called this 171 veteran "Simon"

。

The experience on the 21st convinced Zhang that it would not be difficult to get rid of a group of British ships without sonar, and that Hesson's tactics, while strange, were all very effective.

"Lieutenant, you don't know! The last time we were in the waters north of Scotland we were targeted by one of these airships, it could not sink us directly, but it would soon attract a large group of British destroyers! Last time, we were besieged by 5 British destroyers, and if 116 hadn't appeared at the last moment and sank one of them, we would have perished at the bottom of the sea! ”

"I see! Simon, don't worry, now we have three submarines, and if the British arrive, we'll give them a nice ambush! By the way, can you tell me about that battle! ”

Recalling a painful loss, especially one with the sacrifice of a close comrade-in-arms, anyone needs to muster courage, and Simon is clearly the kind of person who is particularly brave.

He sorted out his thoughts a little and said, "It was a sunny day, the view on the sea was very good, and we were on the 6th of the return voyage. It was about 10 a.m. when we were more than 160 nautical miles north of Scotland from Pascalflo and the plan was to cross the British blockade into the North Sea at night! ”

"At about 2** p.m., a convoy of British destroyers appeared in front of our course, and at this time there was only one ** left on board. The captain immediately ordered the submarine to dive, but the British destroyers could not find us, so they had to bombard the sea. We stayed underwater for about 2 hours before we surfaced to periscope depth. At this time, the British destroyers were no longer in sight, so we were relieved to surface and recharge. Unexpectedly, the British airship had been monitoring the sea nearby, and those British destroyers did not go far, and they quickly killed back! ”

"We made another emergency dive, but this time the British destroyers opened fire before we could fully dive, and shells rained down, one of which happened to blow up our periscopes. Without a periscope, the submarine is like a blind man in the water, and our situation has become very passive! When we are forced to float because we run out of oxygen...... Alas! The captain was killed on the spot, the gunner died five, the ** cabin died 4, we thought that this was the end of it, but fortunately 116 arrived in time! ”

Li Ming patted Simon on the shoulder, and the young officer with a black beard had a deep sadness and indignation engraved on his face.

"Stone!"

Li Ming called the signal soldier on the boat, "The flag signal tells 89 and 145 that the British airship is likely to attract British destroyers, ask them what they mean, whether to dive now to avoid it or wait for the British to come and ambush them!" ”

"Yes!"

The tall, lanky Storm was about to signal the flag, but suddenly stopped.

"Lieutenant, 89 is signaling to us! They...... They say that the three submarines sailed separately, so that the British airship did not know which one to track! ”

"What?"

It's not that Li Ming doesn't believe his ears or Stone's eyes, but this method does seem to be ** stupid - actively dispersing forces will only make you more passive when encountering enemies!

"Tell them that I suggest that the three submarines act together and work together to kill the British destroyers if they come!"

This is Li Ming's truest thoughts, he used to think that the German submarines of the First World War were far inferior in technology to the submarines of the Second World War, but since he entered the Kiel Naval School to study submarine majors, he has lagged behind, and he is very wrong.

In this era, Germany's diesel engine technology is ahead of other countries, and although their attention to submarines came later than Britain and France, they are lagging behind in design and application!

Their B and D series submarines are currently the most advanced attack submarines in the world, and they are no weaker than some submarines of the early World War II, regardless of battery storage and sonar radio equipment!

It is for these reasons that Zhang Hainuo believes that it is perfectly feasible to borrow the wolf pack tactics that prevailed more than twenty years later in this era!

"Okay!"

Storm faithfully carried out the order, and within two minutes, 89 replied to the signal, and the content was so bad that Li Ming vomited blood: "According to the practice of non-designated commanders in submarine formations, please obey the instructions of our boat!" ”

Before leaving the port, Li Ming had seen the captain of the 89, who was a polite officer in his thirties, but now it seems that the man is a conservative and even a little pedantic.

Li Ming was very depressed, but he couldn't do it, in any way, he really didn't have the right to dictate to the captain.

After a while, he said indignantly: "Then let them ask for more blessings!" ”

More than ten minutes later, 89 was the first to turn and break away from the formation, and 145 did not stop long.

In less than an hour, two low-profile German submarines disappeared into the depths of the vast sea.

Li Ming glanced up at the sky, the airship did not turn away, it seemed that it was targeting itself today!

Come on!

Let one extinguish one, and two extinguish a pair!

Li Ming is furious, a group of cowards, let me show you some of the essence of submarine tactics!

I want to avenge the dead ancestors on 171, and I want to let you know that the German Navy is not so easy to bully!

Thinking of the 21 times when he killed three British destroyers with the force of a boat outside the port of Malta, Zhang Hainuo's self-confidence swelled unprecedentedly.

Just after lunch, a small black cloud of smoke finally appeared in the telescope, it was not a cloud in nature, as time went by, it got closer and thicker, and a gray ** appeared on the western sea.

"It's coming, it's coming!"

Li Ming put down the telescope in his hand and fought a beautiful ambush battle here, embellishing his first battle with a halo of victory, which was what he wanted most in his heart at this moment.

"The British fleet appeared on the port side, and all cabins were ready to dive, check the condition of each watertight door, and prepare to dive in 5 minutes!"

Zhang Hainuo calmly gave orders to the microphone on the control tower, and at this moment, he felt that he experienced the coldness of Hessen, which was a kind of elegant calmness, but also a kind of contempt for the enemy and the arrogance of believing in himself.

At 1:40 p.m. on May 12, 1917, 171 began to dive, and two minutes later, all parts of the ship, including the hull, conning tower, and periscope, were under the surface, and a few nautical miles away from its starboard side, a British anti-submarine formation consisting of a light cruiser and three destroyers was approaching in a menacing manner.