"Boss, don't come unharmed, I wonder if you can bring enough pounds and dollars in your purse this time?" Looking at Xu Jie and Yang Yonglin, Yan Boxun made a joke.

"Of course you've got enough. But Lord Xu said that if you don't give us a conscience price, your bonus next year will be gone. Yang Yonglin said with a smile.

"Don't, Lord Xu, Lord Yang, I think my old Yan has been saddled for you for so many years, and there is no merit and hard work. People say that unloading the mill and killing the donkey, and before you have finished this battle, you will deal with the shipbuilders for you. This is not a martial art. Yan Boxun hurriedly waved his hand and said.

"You eat and drink spicy food in Italy, and you can attend a palace banquet or something from time to time. We fought to the death with the Russians in front, and you compare the credit with us? Yang Yonglin feigned anger.

"Yan Boxun, I can tell you, if the plan you came up with does not meet our requirements, I will not reimburse you for your expenses in Italy, Spain and Germany last year! Pay out of your own pocket! Xu Jie was also beating a side drum next to him.

"Two masters, I was wrong, I was really wrong, you raise your noble hands and spare me." Yan Boxun said with a hippie smile. As he spoke, he took out a few drawings from the folder and expanded them individually. And that's where it gets to business.

"I have to say, Boss Xu, your idea is very right, the use of steam turbines is indeed much stronger than vertical steam engines, smaller in size, lighter in weight, and conducive to maintenance and maintenance. The speed of the ship has been greatly improved, and if the general speed of the current battleship is about 18 knots, the same tonnage. Other things remain the same, the use of steam turbines on the battleship can ensure a speed of about 21 knots. This has been proven on a merchant ship in Italy and meets the requirements for both performance and reliability. Yan Boxun said.

"And then there's the firepower. In fact, our battleships have long been equipped with about 6 large-caliber main guns as the main firepower, such as the PISA-class and Dante-class battleships. And because of the cap, the hardened armor belt of the Russians is not unbreakable. Based on the data of the Spanish-American War and the data of this war, we did an experiment specifically on land. 4 guns, 6 guns, 8 guns, and 12 guns were used to carry out covering strikes against targets at long distances under unified fire control and command. "Speaking of which. Yan Boxun paused and sold out.

"The density of long-range fire from 4 guns is not enough, 6 guns are only barely enough, and 8 guns should be about the same. The walking circle of 10 guns should be optimal. If there were more of them, we wouldn't have tested them, because it would have been impossible to have more turrets and main guns on a battleship. Unrealistic. Yan Boxun said as he pulled an icon out of the file and handed it to Xu Jie.

"Have you tried the 3-pack turret? I remember that the Spanish battleships were 9 10-inch guns. If you make it into a 3-seat 3-pack main gun, it should be good. Xu Jie asked.

"How can I say it? The 3-pack turret really saves weight. But there are also many problems, first of all, when the salvo of the 3 main guns is fired, the shells are too affected by the air current, and the walk is miserable. With the help of the Italian Navy, we tested the accuracy of 9 10-inch guns, which was not at all comparable to the accuracy of 4 twin turrets, that is to say, with 1 more gun, the effective firepower was not as good as that of 8 guns. Yan Boxun said a little discouraged.

"You won't shoot three cannons alternately? Hit the two sides first, and then hit the middle one? As long as the time is staggered for less than half a second," Xu Jie said with some dissatisfaction.

"This method does reduce the interference of the muzzle storm on the shells, but there are other problems. For example. We are now shooting half a salvo for a comparative fire, and if a half salvo is fired, the twin turrets will naturally finish fighting on one side and on the other. What do you do with the three-seater triplet? A wave of 4 shots and a wave of 5 shots. It has a certain impact on observation, if you want to shoot a group of 3 shots, the accuracy of the shot is not enough, and theoretically at least 4 salvos can have a good accuracy. Yan Boxun said.

"And if you use a triple turret, it is more difficult to manufacture, the weight of the turret rises, and the rotation of the entire turret system and the bomb supply system are a challenge, although there are triple 10-inch turrets, but the Italian Navy is still cautious about the triple 12-inch turret service." Yan Boxun expressed his concern from the industrial side.

"In actual combat, whether it is our warship or the Russian warship, the loss of firepower of the main gun is not due to the loss caused by the turret being penetrated, but a considerable part of the loss is due to the shock caused by the impact of the distance. Hitting the turret and hitting the turret will produce this result, so it can be difficult to maintain firepower by relying solely on armor. The majority of officers and men tended to divide the main guns into more turrets. Yang Yonglin chose to stand on Yan Boxun's side.

Actually, this idea seems reasonable, but in reality, the probability of 3 turrets being hit is less than that of 4 or even 5 turrets. Overall, the probability of the turret being scrapped is not bad. Xu Jie retorted that the most classic layout in later generations is considered by some to be 3 3-seat main guns, some people think it is 2 4-seaters, and some people think that it is similar to the 424-seat layout of George V, but it will definitely not be a 4-seat duplex or a 5-seat duplex.

"Well, let's talk about the specific layout first, and then brainstorm ideas. It's not good to jump to conclusions too early. Yan Boxun proposed.

"Okay, then you can continue." Xu Jie nodded.

"The layout of the four twin-mounted main guns is a full central axis layout, the hull is a long bow structure, and the No. 2 turret is raised to form a carrying situation. The bow tower extends to turret No. 3, which lowers the deck one level. ”

"There are two layouts of the 5 turrets, one of which is the addition of a twin turret to the hull amidships on the basis of the 4-twin turret layout. In this case, the side-chord fire could reach 10 12-inch guns, but this was somewhat difficult for the layout of the crew, squeezed a lot of space, and the protective belt would be long. ”

"The second layout is more bizarre, in which the two turrets are arranged in the hull countermeasures, which will not affect the layout of the power compartment, and will also shorten the length of the armor belt, and the main gun of the side-chord layout has a certain firing range within a certain angle range on the opposite side, about 60 degrees, (similar to the layout of the Caesar-class battleships of the German High Seas Fleet during World War 1)" Yan Boxun submitted the three final selected layout plans.

"Don't have a 3-seater, 3-pack design?" Xu Jie frowned and said.

"Yes, there are not only 3 3-seat 3-pack design schemes, but also 4-seat triple design schemes, Count Vittorio has a great appetite and intends to build the world's strongest top warship." Yan Boxun said with a smile.

"In addition, the twin turret has one of the biggest advantages over the triple turret, that is, the underwater mine protection will be better, and the width of the watertight compartment is sufficient, because the diameter of the ammunition magazine and gun ring under the turret is relatively small, and in the case of the same width, the lightning protection performance of the battleship will be better." Yan Boxun's words can be described as hugely lethal. In fact, whether it is 10 guns or 9 guns, the gap is not very big when the shooting skills are reasonable. Because of the problem of walking, 8 guns may be more effective than 9 guns.

What is the biggest advantage of the 3-gang turret? The biggest point is that the length of the armor belt is reduced, which saves weight, and the distance between the turrets can be widened, preventing the two turrets from getting too close together and causing the possibility of being destroyed by one cannon and two turrets. For example, the German battleship Bismarck was knocked out by a single shell for this reason, with two turrets destroyed. Therefore, in World War II, the new battleships of various countries abandoned the layout of 4 twins, (except for the conservative Bismarck) reduced the length of the armor belt, and used the limited weight in more important places.

But what about now? To be honest, in the absence of ultra-long-range heavy bombs and bombshell strikes, battleships did not use excessive horizontal armor, and relative to vertical protection, horizontal armor accounted for the bulk of the weight of the battleship, so the German battleships of World War I could install vertical armor of sufficient thickness on a longer armor belt. THERE WAS ENOUGH WEIGHT TO PLACE ANOTHER 200+ MM OF UPPER ARMOR ON THE MAIN ARMOR BELT. (Of course, the low height of the main belt is also an aspect, the king's 350MM main armor belt is only 3.8 meters high, and by the 2nd World War, the Richelieu 330 main armor height reached 5.96 meters.) Therefore, the requirement to save the length of the armor belt is not urgent, so the consequences of lengthening the armor belt are not serious, and a longer armor belt represents a better protective area. Faced with this situation, Xu Jie was a little shaken.

Sometimes, overly advanced design concepts and layouts are not necessarily the best choice, because different eras have their own characteristics, and it is not wise to take precautions too early when a threat has not yet appeared, but a foolish copy. In this case, Xu Jie prefers to brainstorm ideas, rather than being beaten to death by himself with a stick, and the world is arbitrary! After all, if a person is not a saint or a sage, who can be without fault?

"I need to take a good look at your design drawings, and distribute these drawings to the top of the fleet, so that they can see and give advice, after all, they will use warships in the future instead of those of us who do not go to battle." Xu Jie decided to put this matter aside first, building a battleship is not in a hurry, and 5 years will definitely be enough.

"Also, I want to know about the earnings of my shares in the design bureau and factory in Italy, Vittorio mentioned in the telegram that you will hand over the relevant documents to me, I don't want the money that should have belonged to me to be lost in vain!" Before leaving, Xu Jie said to Yan Boxun with a smile.

"Definitely not, you have a lot of money, except for the part I borrowed, if you can help me reimburse some expenses, I will definitely pay you back." Yan Boxun said.

"Pay back the money first, and I'll reimburse you for your expenses!" Xu Jie said with a calm face.

The chapter of the flow of techniques that I haven't seen for a long time, let's support it a lot. (To be continued.) )