Transmigrated as the Crown Prince

On the U-100 submarine, the captain, Joe Jim, watched the three transport ships collide with each other in the distance, and excitedly slapped the bulkhead. "Aha, there is such a good thing, one shot and three shots!"

With such a dense formation, if their submarine came close to fire a round of torpedoes, it would definitely be able to hit the target perfectly. But he didn't get carried away. There were more than ten destroyers in this transport formation. Once they got too close, it would be dangerous.

Submarines during World War II had poor performance and slow speed. They sailed on the surface most of the time, mainly relying on sonar and visual search, and direct torpedo attacks. Once discovered by a destroyer, it will be surrounded by anti-submarine formations. If you want to run away, you can't win, if you want to fight, you can't win. You can only be meat on the felt board, to be slaughtered by others.

You must know that the submarine during World War II cannot be called a real submarine, but more like a ship that can dive into the water, so it is more appropriate to call it a diving ship. At this time, the line shape of submarines is basically ship type (conventional type), and the appearance is like a ship. These ship-type submarines more often sail on the water like surface ships. Therefore, a major technical characteristic of ship-type submarines is that the surface speed is greater than the underwater speed.

Their surface speed is generally only a dozen knots, and their underwater speed is even slower, only 7 or 8 knots at full speed. Moreover, underwater navigation is driven by batteries, and the battery will run out of power in one or two hours. On the other hand, the speed of destroyers is more than 30 knots, or even more than 35 knots. The submarine ran for a long time and was soon caught up with him.

The submarine is powerless against the destroyer overhead. Even if it counterattacks with a direct torpedo, the destroyer can easily avoid it due to its high speed, fast acceleration and shallow draft. The destroyer maneuvers in S-type, or multiple ships conduct a net search, and use depth bombs (the most commonly used anti-submarine weapons, in addition to anti-submarine torpedoes, anti-submarine missiles, etc.) to fight desperately.

At this time, the submarine can only run silently and quietly, or sit down and shut down the phone, praying that the depth bombs will not explode, and praying that the destroyer will leave quickly if something happens. However, World War II submarines could last more than twenty hours underwater at most. If they maneuvered at high speed, they would need to surface for recharging in one or two hours. As long as the destroyer is patient, it can also kill the submarine.

Once the submarine surfaced, it had no choice but to be captured. There were deck guns on World War II submarines, but if you wanted to engage in a bombardment with a destroyer, you had no chance of winning. Destroyers have many weapons, fierce firepower, good maneuverability, and strong damage control capabilities. As long as they miss their vital points, they can still float on the water even if they are hit by white hair. The same cannot be said for the submarine, which suffered only a tiny bit of damage to its fragile shell.

Even in later generations, submarine technology has developed rapidly. Conventional submarines have illuminated their AIP skills, and their underwater diving time and silent level have been greatly improved. Nuclear submarines have become extremely powerful "oceanic black holes" with their unlimited range, large diving depth, and high speed.

But the destroyers did not stand still, and the technology tree was also growing simultaneously. Compared with the destroyers of World War II, not only did the tonnage increase, there were more weapons, and the detection level was greatly improved. More importantly, the ship also carried 1 to 2 anti-submarine helicopters. . With the powerful combination of anti-submarine aircraft + destroyers, nuclear submarines must also stay away.

Therefore, Qiao Jim did not intend to take risks rashly. He returned to the cabin and gave a loud order. "Send a report to the headquarters and request support from the wolf pack." Although it was too far away to see clearly, Qiao Jim felt that the big guy was at least 10,000 tons, and he was already satisfied.

The sudden explosion at this time caused the entire transport formation to explode instantly.

"What happened?!"

"Why did it explode suddenly?!"

"Is it a submarine attack!?"

The destroyers on the periphery were very sure. "We found no submarines nearby! No trace of torpedoes either."

Hubert, who was in charge of the escort, felt a hint of uneasiness in his heart. The exploding freighter was only carrying various steels and metals. There were no high explosives such as dynamite. Even a boiler explosion would not be that violent. There must have been an external attack.

But even a German submarine cannot quietly penetrate into the core of the formation and launch torpedoes, right? Could it be that it hit a mine? But even a mine is the same as a submarine. Why didn't it hit so many ships on the periphery, but hit the transport ship at the core?

After being puzzled for a long time, there was no follow-up attack, and Hubert gradually became relieved.

At this time, the German Wolfpack Command received a message from the U-100 submarine, and reconnaissance planes taking off from Brest flew to the vast North Atlantic to search for this transport formation.

Most of the reconnaissance aircraft used by Germany today are imitations of the Japanese Nakajima C6N "Caiyun" high-speed reconnaissance aircraft.

On May 29, 1944, over the waters southwest of Saipan, three US Grumman F6F "Hellcat" carrier-based fighter jets were closely chasing a Japanese reconnaissance aircraft. During their daily patrol, they discovered the Japanese aircraft that had just completed a high-altitude reconnaissance mission to the anchorage of the US fleet in Majuro Atoll and was returning, and quickly launched a pursuit operation. However, although the engine power of this slender single-engine reconnaissance aircraft was equivalent to that of the F6F, the pilots of the US fighter jets were unable to catch up with the Japanese reconnaissance aircraft even if they pushed the throttle all the way. They could only watch helplessly. Follow it and walk away. After the Japanese crew escaped the pursuit of U.S. fighter jets, the pilot of the plane, Chihaya Takehiko, the captain of the 121st Naval Air Force, asked the telegraph operator on board to send a famous telegram to his base:

"I'm chasing the enemy" (there are no Grumman fighter jets chasing behind me)

This kind of reconnaissance aircraft that could come and go freely over the U.S. fleet and logistics supply docks in the middle and late stages of the Pacific War, but U.S. military aircraft had no way to deal with it, was the Nakajima C6N "Caiun" high-speed reconnaissance aircraft.

This is a single-engine reconnaissance aircraft with outstanding performance, with a speed of h (after the war, the United States used its own fuel to test fly a "Caiyun" 11 model, flying at a speed of nearly 700km/h, but the mass-produced version was A lot of equipment such as radios were added, and the speed dropped to 609km/h after the weight increased). After being equipped with an auxiliary fuel tank, it can reach an ultra-long range of 5308km.

Since the "Caiyun" adopts a high-wing load design to improve high-speed flight performance, in order to compensate for the weakening of lift caused by the reduction in wing area, the designer used a 2-stage large-area lift flap to ensure that it has good low-speed controllability. to meet the take-off and landing needs on aircraft carriers.

The most important point is that the resources of the Japanese country were quite poor at that time. In order to reduce the cost of aircraft production as much as possible, "Caiyun" used a large area of ​​metal skin, which was also beneficial to the enhancement of the fuselage structure and the number of rivets used in production. Significantly reduced. (The Japanese military aviation manufacturing industry during World War II often used the number of rivets to measure the production cost and working hours of aircraft, and converted it based on the relationship of 1 rivet = 1 yen). The total combat weight of Zero War was 4 tons, and the number of rivets was 220,000. ; And the "Caiyun" is heavier than the Zero War (the total combat weight is 5 tons and the number of rivets is 100,000)

Although it is heavier than Zero War, it focuses on the low cost of production and adopts a new design to greatly reduce the use of rivets, making its production cost lower and easier to improve production efficiency. Of course, Yannick has nothing to do with something so in line with Germany's national conditions. He unceremoniously took it for his own use.