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"The battle is a little slower than expected. I didn't expect that the Japs would have so many anti-tank cones and dug a lot of anti-tank trenches. Although we have a dense anti-aircraft firepower network, we don't have air superiority over the enemy, so it will be difficult to fight!"

On the shore in the middle of the Bamao waters, Xu Le looked at the "endless" waters and sighed.

This is the deepest place around. The water depth reaches 10 meters 10 meters away from the shore, 30 meters 15 meters away, 100 meters 20 meters away, and a large area in the middle reaches 30 meters. The deepest place is even 50 meters.

Xu Da said, "Marshal, the Japanese don't know our tank data, so the anti-tank trench they dug is only 2 meters wide, while the width of our Type 69 tanks crossing the trench is nearly 3 meters, so the Japanese only slightly slowed down the speed of the tanks. I'm afraid that after this battle, the Japanese will dig wider anti-tank trenches in subsequent operations!"

Xu Le waved his hand indifferently: "Then let the Japanese dig it. It would take a lot of manpower and material resources to build an anti-tank trench longer than 3 meters. It would only cause huge internal friction for the Japanese before the war even starts!

And even if he has dug it, unless he uses a huge amount of reinforced concrete to pour it, wouldn't it be better to let the artillery regiment blanket it and blow up the road surface?"

Xu Da couldn't help but smile awkwardly: "Well... that's true. If we want to use reinforced concrete to cast an anti-tank trench that is 3 meters wide and at least 10 kilometers long, and there can't be only one, there must be at least dozens of them staggered in front and behind, even if the Japanese have sufficient resources, it will take at least several months!"

Xu Le then spoke up again: "Even if he repairs it, it can only barely defend for a period of time. Our shells are not ordinary shells. At most, we can let the bombers drop 250 kg or 500 kg bombs, and if that doesn't work, we can drop 1 ton bombs!

Never mind. With Fang Yue and Wei Li here, there's no need for me to worry about it. I'd better focus on my submarine!"

Open the system and select the submarine interface, all kinds of submarines of New China appear in front of Xu Le.

There are Type 03 submarines, Type 033 submarines, Type 031 conventional-powered ballistic missile submarines, Type 035 conventional-powered submarines, Type 035 conventional-powered torpedo submarines, Type 091 attack nuclear submarines, Type 092 strategic nuclear submarines, Type 093 attack nuclear submarines...........

There are even 100 series submarines that have never been heard of in the past, which should be future models in the mid- or late 21st century!

Similar to warships, submarines are roughly divided into four categories in the system: conventional-powered submarines, conventional-powered missile submarines, nuclear-powered attack submarines, and nuclear-powered strategic missile submarines. The prices also increase accordingly, especially nuclear-powered strategic submarines, which cost nearly 4 million yuan each, and are equipped with conventional warheads, not nuclear warheads.

It should be the same as the setting of the army missiles. Special conditions must be met to have a nuclear warhead!

"How should I choose? Conventional submarines are cheap, but they are slow underwater and must rely on electric motors to maintain power. They can't stay underwater for long before they have to surface to use diesel engines to charge their batteries. Once a submarine surfaces, it becomes a sitting duck.

Nuclear submarines don't have to worry about underwater navigation. Not only can they travel at full speed, but they don't need to rely on oxygen, and their endurance is almost unlimited!"

"In my previous life, the earliest nuclear submarine seemed to be the Nautilus launched by the United States in 54. The development of weapons in this world was almost the same, and atomic energy had not yet been developed."

After much deliberation, Xu Le finally chose two power combinations, namely conventional-powered near-shore combat submarines and nuclear-powered ocean-going combat submarines.

The training level of submarine soldiers is comparable to that of pilots, so Xu Le maintained the suppression effect as always. If he had to do it, he would do it well, and not those that were not much different from the enemy. Therefore, both Type 03 and Type 033 were eliminated, because their various data were not outstanding, and their weapons were all torpedoes, and they did not have missiles as a trump card like destroyers.

The Type 031 conventional-powered ballistic missile submarine was manufactured by New China after obtaining the manufacturing rights for the Soviet Type 629 submarine. It has three N-3 missile launchers, which are products of the Soviet Union in the 4s. It has a maximum range of 50 kilometers and a warhead equivalent of 650 kilograms.

But Xu Le did not choose this model because its underwater range is too short. It has a range of only more than 2 kilometers when traveling at a speed of 500 knots. If it travels underwater at a full speed of 12 knots, it must surface in less than an hour.

He didn't want his submarine soldiers to take such a big risk!

Secondly, the N-4 missile is not domestically produced. Although he can continue to purchase this type of missile in the future, since the system has been domestically produced, he does not want such a foreign product to be mixed into the army.

It would be interesting if all three armed forces were domestically produced!

So he turned his attention to the Type 035 submarine.

This is the first generation of conventional-powered submarines designed and built by New China. It was put into service in 1974 with a crew of 57.

It is 76 meters long, 7.6 meters wide, and has a draft of 8 meters. It is a single-axis, single-propeller diesel-electric powered ship with 5200 horsepower, a maximum surface speed of 15 knots, and a displacement of 1600 tons; 18 knots underwater, a displacement of 2000 tons, and a cruising range of 9000 nautical miles.

Excellent propulsion performance allows the submarine to travel quickly underwater for about 500 nautical miles at a time, and it has stronger self-protection capabilities when encountering enemy destroyers!

However, Xu Le did not choose the basic type of 035, but the improved 79A type that was put into service in 035, because the former can only launch straight-flying "Yu 1" torpedoes, while the latter launches "Yu 3" torpedoes with electric propulsion and passive acoustic guidance, and has a new fire control system, which greatly improves the range and accuracy.

The six torpedo tubes at the bow can carry 6 torpedoes or drop 16 mines.

The most important thing is the system notes. Torpedoes with acoustic guidance are not considered guided missiles, so their price is the same as bombs, 1 pieces for 100 military merit point, which is equivalent to free.

Because the Type 035A submarine does not have missile launching capabilities, it is much cheaper, requiring only 30 military merit points per ship.

This is mainly used for near-shore defense operations and for training, so only one is purchased!

Then there are the nuclear-powered submarines used for long-distance operations. They are also the first generation of nuclear-powered attack submarines independently built by New China. They were also put into service in 1974, namely the Type 091 attack nuclear submarine.

The submarine is 90 meters long, larger than the 035A, with an underwater displacement of 4500 tons and a maximum diving depth of 300 meters. It is powered by a 90-megawatt nuclear reactor that provides energy for two steam turbines with a power of horsepower.

The maximum speed on water is 12 knots, the maximum speed underwater can reach 25 knots, the self-sustaining capacity is 90 days, and the total crew of the boat is 75 people.

Its weapons consist of six 6mm torpedo tubes at the bow, which can launch "Yu 533" type torpedoes, with 3 torpedoes in reserve and a maximum range of 24 kilometers.

It can also launch the submarine-launched Eagle Strike 8 anti-ship missile, the Eagle Strike 82, with a payload of 6 missiles.

[If we cannot find the exact number of launch tubes, we will assume that there are 6. These are all confidential, you all understand! ]

In terms of price, the 091 submarine is much more expensive, reaching 200 million military merit points per submarine!

Just like the purchased 051 destroyer, the submarine itself comes with 6 Eagle Strike 82 missiles, but if purchased later, the price of a single Eagle Strike 82 will reach 200 million military merit points, and it will cost 1200 million to reload it.

"Fuck!"

Xu Le had never looked at the price of missiles before, but now he suddenly realized that it would be much more cost-effective to buy a new one than to replenish the missiles individually.

Just when he was excited, he discovered a row of small words in the lower right corner of the interface, as big as ants.

He leaned in for a closer look!

Good stuff, the purchase limit is one boat per month, and it can be accumulated!