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Text Chapter 628, Hunting Ground

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    Captain Hafs has now returned to the Navy, and he has a new submarine - 92.  This is a newly produced new submarine. Compared with the original submarine, it is larger, has more weapons, and is more self-sustaining.  The underwater displacement of this submarine has reached 1,200 tons. There are six torpedo launch tubes at the bow, which can launch powerful 533 mm caliber heavy-duty torpedoes. There are also two such torpedo launch tubes at the tail.  .  Coupled with the torpedoes stored in the fish and mine library, it is enough for Captain Hafs to have a good time in the hunting ground of the Atlantic Ocean.  But what makes Captain Hafs even more happy is that the authorities have finally let go of their hands and allowed them to freely attack any cargo ship sailing on the route to Britain and France. This will naturally give Captain Hafs more achievements and achievements.  Opportunities for advancement.  Five days ago, Captain Hafs¡¯ submarine attacked a container ship sailing alone and sent the ship into the sea with two torpedoes.  Three days ago, Captain Hafs' -92 attacked a cargo ship full of gasoline and blew it into a big torch with a torpedo.  Hafs sank another cargo ship this morning.  Calculated in this way, although he left the battlefield for a while, Hafs's luck seemed to have returned, and his name once again appeared on the sinking ranking list. Of course, because of the time he had been delayed before, he was still far away from the battlefield.  There is still a little way to the top of the list, and everyone's scores have risen rapidly during this period. Maybe when we go back this time, there will be a big change in the rankings on the sinking list.  So Hafs has to work hard.  Hafs's submarine has been sailing in the ocean at low speed in a semi-submersible state, but until it was completely dark, he did not encounter any targets again. After the sun put away its last ray of afterglow, Hafs let  The submarine completely floated to the surface, and the crew members, who had been in the small cabin all day, took turns going up to the deck for some fresh air.  At this time, there was no rare wind on the sea, and the always violent Atlantic Ocean seemed to be asleep, as quiet as a big pond.  At this time, the moon has not yet risen, and the sky is like a black velvet cover studded with various shining gems covering the sea. The submarine is gently swaying, and the slight waves are gently washing the submarine, making a gentle sound.  The whirring sound, combined with the low chug of the submarine's diesel engine, made people feel extraordinarily quiet.  Captain Hafs lowered his head and looked at the watch on his wrist. This is a high-end watch from the United States. It is a must-have for submarine commanders of the German Navy because it has a special function, that is, its hands.  Both the watch and the dial have a touch of luminous light, which is especially suitable for use at night when there are lights out.  Luminous watches are actually nothing in later generations. Later generations generally use fluorescent substances to achieve this effect. Some fluorescent substances can be excited as long as they are exposed to light, and then they can fluoresce by themselves when placed in a dark place.  However, there is a problem with this type of luminous watch, that is, its luminous light can only last for a short time. If you need to work in a dark environment for a long time, this kind of watch is not suitable.  But in this era, this was not a problem for McDonald, because they had other things to replace the fluorescent substances used in later generations, which was a compound of uranium. Because of the radioactivity of uranium, it can automatically fluoresce at night.  Of course, in later generations, this compound cannot be used indiscriminately on personal items like watches. Think about it, people in later generations are so rich that they will be allergic to the radiation of IFI, and this thing actually contains nuclear radiation. Maybe  It will cause problems such as cancer, deformity, and Ultraman transformation.  But in this era, you can ignore all of this. Anyway, people in this era don't know that ionizing radiation can cause harm to health.  Therefore, even Morgan, who likes to follow the fashion, wears this kind of luminous watch. Of course, the simple Scrooge will never use such luxury goods.  It was already ten o'clock in the evening. Hafs waved his hand and drove the few sailors who were still on the deck back to the cabin, and then he was about to go down. At this time, he suddenly saw what seemed to be a point on the sea in the distance.  firelight.  "What is that?" Hafs thought, so he took the large telescope from the hands of the lookout Schiller.  Telescopes of this era lack coating technology, so the imaging in dark light conditions is quite poor.  If this were an army telescope, Hafs probably wouldn't be able to see anything. However, the telescopes equipped for Navy submariners took this problem into consideration for night use, and the solution was simple. The amount of light entering was not enough and the aperture was used.  The objective diameter of the telescope in the hands of the Army is only 30, while the one in Hafs's hand has an objective diameter of 80, but the magnification is only seven times, which is lower than the magnification of the Army's gadget. With its large diameter and low  Multiple times, this thing can barely be used at night. Of course, increasing the diameter of the objective lens will also cause many problems. For example, the weight of this thing is heavier than the one in the hands of the Army guys.Okay, fortunately there is a shelf on the submarine, you can put it on the shelf and use it.  Through the telescope, Hafs saw clearly that it was a British fleet, with more than a dozen vaguely visible ships.  As for whether there are escort destroyers, Hafs can't see clearly.  Hafs estimated the distance, considered the fleet's course that was almost parallel to his own, and then simulated a sea chart in his mind. He found that if he immediately changed the following course, he should be able to catch up, but  , which requires that the submarine must always sail on the water.  "What to do?" Hafs thought.  If it was daytime, he could only watch the fleet escape, but it was night now.  "If we pursue on the sea at night, the enemy shouldn't be able to spot us, right?" "Our submarine is very low. From any British ship, we are looking down, so we automatically blend into the dark background of the sea.  "With or without the moon, the tracks caused by high-speed driving are still invisible. It is completely possible to sail on the sea, or even approach the enemy directly from the sea, use the submarine as a torpedo boat, and launch attacks directly from the sea."  While Fusi was thinking this, he quickly went down to the cabin and found the deputy captain to discuss it.  ¡°Hafs, I think this is a good idea.¡± After hearing Hafs¡¯s idea, Vice Captain Ram thought about it and said this.  The submarine force's treatment is good, so morale is relatively high.  "Well, let's take a risk." Hafs replied.   Just as Hafs speculated, the British never discovered that a submarine was actually attacking the merchant fleet from the sea. This was entirely because the sea was too dark, and the German submarine was smeared with water.  The paint is so gray and black that almost nothing can be seen when looking down.  In fact, not to mention submarines that are almost the same color as sea water, even snow-white icebergs are not so easy to find at night. Otherwise, there would be no shipwrecks in the ice sea in history.  As for the sound of the submarine engine, it was drowned in the roar of the entire fleet's machines.  The British destroyers already have usable sonar, but at this time, passive sonar cannot be used to determine the direction at all, and can only provide a vague early warning. To determine the direction, active sonar must be relied on.  However, this early sonar is still very important, because an experienced sonar soldier can completely hear the propeller sound of a submarine sailing under the sea, because when sailing below the water surface, the sound of the submarine's propeller is different from that of other ships.  The sound of the propeller is quite different.  Once they hear such a sound, the destroyers will prepare for battle and turn on active sonar to search the waters near the fleet.  Although this may not necessarily catch the submarine, at least it can put a lot of pressure on the submarine, making it more risky and less efficient to launch an attack.  However, now, because the -92 is sailing on the sea, the sound state of its propellers has changed significantly, and it is completely different from when it is usually diving under the sea.  In addition, because the -92 is now on the water, the active sonar used to search for underwater targets will naturally be of no use.  Therefore, using the method of night attack on the sea, Hafs turned the latest sonar equipment on the British destroyer into a decoration.  In this way, at a little past one o'clock in the morning, submarine No. 92 caught up with the merchant fleet.  "1, 2, 3, there are three destroyers, two in the front and one in the back." On the watchtower, Vice Captain Ram was pointing his finger at the destroyers, which looked particularly clear against the bright sky background.  The black silhouette of the British ship whispered to Hafs, who was standing next to him, as if he was afraid that his voice would be heard by the British if he spoke a little louder.  However, this worry is a bit unnecessary, because the distance between the two sides is still about one thousand meters, and the British do not have such a favorable ear.  "We can get closer." Hafs said, "Look, there is a big gap between the two ships. Let's get closer to about 500 meters and launch a torpedo at target No. 5.  , and then quickly insert into this gap, so that we will be blocked by the No. 6 ship. When the torpedo explodes, we will not be illuminated by the fire. Then we will launch a torpedo at the No. 2 target, and then  Sail towards the No. 4 ship and use it to avoid the fire What do you think?" Ram thought for a moment, nodded and said, "It should be possible. You are the captain, give the battle order!"  "Okay, Ram, you go down and control the submarine. I will take command here. Let us fight bravely for Germany." Hafs said.  ¡°Germany is above all else!¡± Lahm replied.  Then he came down from the control tower and entered the cabin.  "Turn the rudder to the 300 direction." Hafs issued his first order, and a new submarine combat mode began from this battle.
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