Discover the submarine Halsey, who had just breathed a sigh of relief, was almost shocked to the bridge of the Little Rock.
It was too coincidental that these submarines came, and he had just sent out most of the destroyers at hand to block the pursuers, when the German submarines came.
Needless to say, it must be the kind of new German submarine that is too fast to catch underwater.
The fires on the three Iowa-class battleships have not yet been extinguished, and open flames are easily visible in the dim sea.
The German submarines only needed to aim at open flames and fire torpedoes to sink three battleships that had already suffered heavy losses.
"Anti-submarine" Halsey already knew in his heart that there would be more than one bad luck, but he still refused to give up easily, "Iowa, Wisconsin, and Missouri immediately took the anti-submarine route, and the rest of the ships carried out anti-submarine operations."
Thundered Less than 5 minutes after Halsey's order was issued, the originally calm sea water began to boil like boiling water, and several terrifying waves appeared on the sea in an instant.
This is a destroyer dropping depth charges However, there were no German Type 21 U-boats under the surface of the sea where the depth charges were dropped, and it was difficult to catch such submarines that could sail at 172 knots underwater.
And now the number of American destroyers and light cruisers guarding around the three Iowa-class is limited, and they simply do not dare to leave the badly injured big guys they protect to catch submarines.
So the depth charges that are being dropped now are just a sound, a buoyant, and by the way to scare the Nazi wolves in the sea.
"The Yankees were terrified by us, they were throwing depth charges."
Lieutenant Colonel Erichtop, the commander of the U3010 submarine and commander of the 27th submarine detachment, heard the dull roar and saw the flower-like waves rising from time to time on the dim sea through the periscope, and understood what was happening.
As an ace U-boat captain who had served on destroyers for a period of time and was no stranger to anti-submarine warfare, he certainly knew what a desperate weapon the Type 21 U-boat was.
It is difficult for the existing sonar to detect the submarine underwater when the destroyer is sailing at a speed of more than 18 knots, and the Type 21 U-boat has a speed of up to 172 knots underwater, and in order to track the Type 21 U-boat, the destroyer must drive above 18 knots.
And when the Type 21 U-boat was sailing at a low speed of about 5 knots, the submarine was quiet enough to evade any kind of existing sonar.
And after several successful attacks on destroyers and submarines, the German U-boat captains mastered a very useful trick, first approaching the enemy destroyers at high speed, deliberately making noise, and then reducing the speed and driving quietly.
It is very likely that the intimidated American destroyers will litter depth charges, and the explosion of the depth charges will disable the Americans' sonar in a short time.
So that the American destroyers were completely unable to detect underwater U-boats.
The Type 21 U-boat can naturally accelerate its movements, and it is very comfortable to look for opportunities to start.
At nightfall on 5 September, 12 Type 21 U-boats led by Lieutenant Commander Toph adopted this tactic of scaring the Americans and successfully tricked American destroyers into dropping depth charges.
Because of the interference of the depth charge explosion on the sonar, the depth charge explosion takes 15 minutes to ignore the interference, and now the underwater has become the world of the Type 21 U-boat, even if they go at full speed, the American destroyers will not be able to detect it.
"Maintain depth, speed 5 knots."
"Torpedo compartment preparation, use T1 torpedoes."
"Combat readiness."
Lieutenant Commander Topp, who had already seen three Iowa-class battleships still emitting flames from the periscope, suppressed his excitement and gave one order after another.
One torpedo was pushed into six torpedo tubes in the bow.
Unlike the T2 torpedo, which has excellent concealment, but is 30 knots slower and has an electrically propelled charge of less than 200 kg.
The 1 torpedo has a greater speed and range, and can hit 6000 meters at a high speed of 44 knots and 8000 meters at a speed of 40 knots.
The warhead of the Type 1B torpedo is equipped with a full 350 kg of high-performance explosives, which is theoretically enough to deal a heavy blow to the underwater protection of the Iowa-class battleships, and the underwater protection of the Iowa class can only withstand the blow of 300 kg of TNT explosives, and it cannot stop the T1B torpedo with a 350-kg charge.
As for the disadvantages of the T1B torpedo, the wake of the torpedo when sailing, it was not at all a problem for the Type 172 submarine, capable of maneuvering under water at a high speed of 21 knots.
And now that it was getting dark, if you wanted to see the torpedo trail, you had to turn on the searchlights, which would again reveal the location of the destroyer, which was also the prey of the Type 21 U-boat "6800m" "6500 m" "6000 m" “” Top's voice made the atmosphere in the U3010 boat more and more tense, and drops of sweat continued to drip down everyone's foreheads and cheeks.
All eyes were on Lieutenant Colonel Topp, and at a distance of 6000 meters, the T1B torpedo could already reach a maximum speed of 44 knots.
But the order to launch the torpedo was delayed.
It was not until Toph reported the number "3,000 meters" that Lieutenant Colonel Toph ordered in a deliberately low voice: "No. 1, No. 2, No. 3, No. 4, No. 5, and No. 6 torpedoes are ready, and the depth is set at 5 meters."
Start Pressurizing" The current target is an Iowa-class battleship with a standard displacement of nearly 450,000 tons, and its underwater anti-mine armor cannot be weak. 1B torpedo.
And to ensure a hit, he also ventured to let the submarine go to a position less than 3000 meters from the target.
"Pressurization Completed" "Target 3000 meters, torpedoes No. 1, No. 3 and No. 5 launched" "Torpedoes No. 1, No. 3 and No. 5 have been fired" "Torpedo firing No. 2, No. 4 and No. 6" "Torpedoes No. 2, No. 4 and No. 6 have been fired" There were six soft bangs, and the body of the U3010 submarine shook slightly, giving people a light feeling.
Six torpedoes headed for an Iowa-class battleship 3,000 meters away at a speed of 44 knots, and after about 2 minutes, they hit or missed.
The U3010 boat was silent, everyone was anxiously waiting in their hearts, and time seemed to freeze at that moment.
Lieutenant Colonel Toph held his pocket watch and stared at the hands, which had been twisted around for more than two times, and his mood was already extremely tense.
Boom, boom, boom Three dull sounds came, and Lieutenant Colonel Toph immediately raised his periscope, only to see that the huge warship that was being targeted had been engulfed in flames, and in the firelight, you could see a wall of water that was falling more than ten meters high Lieutenant Colonel Toph stretched out his right hand, a Leica camera was handed over, Toph attached the camera lens to the eyepiece of the periscope to take a picture, then immediately retracted the periscope and loudly gave the order to evacuate: "Left rudder 20, evacuate at full speed" As the U3010 boat swerved and accelerated its evacuation, Admiral Halsey, who was aboard the light cruiser USS Little Rock, suddenly felt a rise in his throat. 3 torpedoes hit the anti-mine armor under the port side waterline of the battleship Wisconsin, and the huge destructive force formed by the explosion of 350 kg of TNT explosives under water immediately tore apart the main armor belt and the main mine belt on the side that were spliced together, but the Iowa class has multiple watertight compartments and 3 layers of bottom, and theoretically the hit of 23 torpedoes cannot affect its combat effectiveness at all.
But Wisconsin has already suffered 4 large missiles, it has long been seriously injured, the fire has been burning for several hours and has not been extinguished, and because of the violent explosion and fire, many equipment on the Wisconsin has failed, whether it can withstand the blow of 3 German torpedoes, but it is really difficult to say.
Moreover, there should have been more than one German submarine underwater, and it was impossible for them to fire only three torpedoes.
Halsey's conjecture soon became a reality, and just a few minutes after the Wisconsin was torpedoed, 12 torpedoes fired from U3011 and U3012 boats, also belonging to the 27th Submarine Detachment of the 1st Submarine Group, rushed towards the USS Missouri and USS Iowa, respectively, 7 of which hit the target, the USS Missouri hit 4 torpedoes, and the USS Iowa was hit by 3 torpedoes.
Less than 5 minutes later, the U3013 and U3014 boats of the 27th Submarine Detachment both attacked, and 6 of the 12 T1B torpedoes hit the target, of which the Wisconsin hit another mine, monopolizing 4 of them, and 2 torpedoes hit a Fletcher-class destroyer next to the Wisconsin while dropping depth charges while scanning the sea with a searchlight to search for torpedo trails.
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The attack was followed by four Type 21 U-boats, including U3015, U3016, U3017 and U3018, which fired a total of 24 T1B torpedoes at the three Iowa-class battleships that had staggered on the sea, 13 of which hit the target Less than 3 minutes later, another 3 submarines belonging to the 27th submarine detachment, U3019, U3020 and U3021, fired another 18 torpedoes, this time 10 torpedoes hit At this point, the first round of attacks on the 12 Type 21 U-boats participating in tonight's submarine night attack can be regarded as over, that is, the first round of these 12 Type 21 U-boats all carried 24 T1B torpedoes that can attack large surface ships, and if all of them were launched, there would be 288 pieces, not only the three Iowa-class battleships that had already been heavily damaged could not be saved, but even the destroyers and light cruisers escorting these three Iowa-class battleships, including the Little Rock on which Admiral Halsey himself was ridden, would be torpedoed to the bottom by the Germans. t1706231537: