The dock is not too much to look at, after all, all kinds of equipment have not yet begun to be installed, and many of the equipment of the battleship parked on the sea have not been dismantled, and a huge gantry crane is needed to hang some large parts inside. Pen ~ fun ~ pavilion www.biquge.info

Liu Yijiu didn't go up to see the dismantled Iowa-class battleship, but only looked at the two steel giants that made the world tremble from a distance on the embankment at the end of the dock, and then led everyone back to the technical conference room of the Northern Shipyard.

Because the battleship was too large, whether it was the structure or other layouts, the Chinese side was not familiar with it, and now the renovation design team has placed the office directly in the northern shipyard, and the mapping work has already been completed, and even the preliminary plan for the transformation has been determined.

In the huge technical conference room, there is a more than two meters long, according to the 100 to one model placed on the middle of the table, many places have even been cut, the conference room is surrounded by blackboards, some of which list the key parts of the technical list, some of the blackboard is the assembly diagram of some places, so that people can understand the details of the renovation project at a glance.

"At present, the biggest problem in the transformation design is that the front and rear main guns are canceled, nuclear power is adopted, and the front and rear chimneys and other parts also need to be canceled, so that the center of the entire battleship has been offset, and if the bridge part is not moved, it is difficult to achieve a balance of gravity, which is the biggest difficulty we have encountered in the overall design." Seeing Liu Yijiu stop in front of the model, Wu Tianhai introduced the situation to Liu Yijiu.

I had dealt with this young director several times, and they knew that Liu Yijiu did not like to listen to their reports, but wanted to hear about the difficulties encountered and the solutions to them.

When the Americans supplied the battleship to China's Iowa, they canceled the main guns, and also removed all eight heavy oil boilers inside, leaving only four steam boilers.

It has to be transformed.

Liu Yijiu looked at the model in front of him and frowned deeply.

There have been a lot of plans for the Magic Transformation Iowa class in later generations, but they have not considered the problem of the shift of the center of gravity at all, after all, those who come up with the Magic Transformation Plan are not professional ship designers, and they don't even think about balance at all.

"Now, if you tear down the chimney and other superstructures, the center of gravity is higher, right?" Liu Yijiu looked at the model in front of him and asked Wu Tianhai.

The latter nodded, "The position of the bridge was originally relatively forward, originally because there were two triple guns in front, as soon as they were dismantled, the center of gravity began to move back, and if the chimney and other superstructures next to the bridge were removed, the center of gravity would move forward again." Even, there is a possibility that the battleship will roll over when maneuvering and turning at high speed......"

Wu Tianhai introduced the situation, especially using the supercomputer provided by the Ninth Academy with several screens in the technology room to show the results of their many demonstrations, Liu Yijiu also became a headache.

"At present, if a long-range early warning radar is installed on the bridge, although the weight will not increase too much, the change in the center of gravity will be more obvious." Wang Kai also said on the side.

There have been obstacles in the structural design, Liu Yijiu originally provided the transformation plan after the technical machine simulation, the center of gravity changes very obviously, if it is a straight line sailing there is no problem, once there is a turn in the process of high-speed maneuvering, this will have a disastrous impact on the entire warship.

"What if we equip this with more massive missiles? For example, each missile weighing forty tons. On the position of the original main gun...... "The matter of equipping the battleship with Dongfeng-31 missiles was not in the initial plan."

"Not really. The main thing is these designs, which take into account the balance problem at the beginning, as long as the bridge is not moved and the superstructure is removed, the center of stability will be raised by about three meters compared to the original, which is a very dangerous design! ”

Wu Tianhai shook his head.

It doesn't really matter what missiles the battleship is equipped with.

Because you have to strike a balance before you can install these missiles, otherwise it will become even more dangerous when you put them on.

At that time, such a long time of hard work and a huge amount of money will be buried in the sea.

"In this case, the only way to do this is to tear down the bridge?" If the bridge part is demolished, the whole amount of work will be too large.

Almost all the designers nodded.

Deng Jianjun has also been studying the structural design and internal space layout of the Iowa-class battleship here, in preparation for the design of the 10,000-ton 055 large missile destroyer that they are starting.

Not Iowa-class battleships, almost all the huge battleships in the world have appeared, through countless technological accumulation, which is lacking in the equipment designers of the Chinese Navy. "Director Liu, otherwise, let's tear it down and adopt the first-floor type of the Soviet Kirov-class missile cruiser, with a two-story first-floor design, with the main firepower concentrated on the front deck, and the personnel living in the center......"

A lot of information about Kirov in the Soviet Union, the 701 Institute obtained, all of which Liu Yijiu got back through Heiwei for the design reference of the 701 Institute.

After all, the Kirov is the most powerful missile cruiser in the world.

With just four, it can compete with 20 Ticonderoga-class missile destroyers of the United States.

"If so, all the buildings will change except for the shell of the battleship, how long will it take? We didn't have much time to validate this aspect of the design! Wu Tianhai shook his head, they had considered such a plan at the beginning.

Through computer simulation, it is still impossible to solve the current problems.

Moreover, the warship, which is close to 300 meters long, is much wider than Kirov, and in order to maintain stability and the center of the entire battleship, the bridge was originally in front, and a large number of detection equipment and auxiliary guns were installed next to it, and the chimney behind was even more against the bridge.

The new retrofit project with nuclear power and the advancement of electronic technology will reduce the weight of many equipment by a lot, and the standard displacement of the entire warship will be reduced to less than 35,000 tons. This is nearly 10,000 tons lower than the original design!

Such a challenge is even more difficult than the difficulty of the Chinese side to design a new one on its own.

"Not to mention the rest, according to the overall situation of the battleship, our missile arrangement, it needs to be both front and rear. The main missile, which is also the largest deterrent missile in the future, will be about 13 to 14 meters long, about two meters in diameter, and will weigh more than 40 tons...... There are various other types of anti-ship missiles, anti-aircraft missiles, anti-submarine missiles, torpedoes and other weapons...... These are the questions you should take into account when designing. "Liu Yijiu can't help it.

He is not an expert in ship design.

"Not even a missile of more than forty tons. Before this, the weight of a main gun just by rotating part reached 1730 tons, and we needed about 43 of these missiles to balance the original weight, even if some launch equipment was added, at least 30 of them would be needed to balance the weight of a main gun......" Wu Tianhai's words made the corners of Liu Yijiu's mouth twitch.

Let's not talk about whether so many DF-31s can be installed on it, even if it can be installed, a battleship can be loaded with 100 DF-31s, and the Ninth Court will not be allowed to go bankrupt?

Therefore, this situation is simply impossible.

These issues were not taken into account in the first place.

"What's your plan?" After so many years, it is impossible for the 801 Institute not to even come up with a solution.

Liu Yijiu needs to know the solution.

"Demolish all the superstructures, determine the power compartment and internal structure inside, and then arrange the superstructure!" The solution proposed by Wu Tianhai can be said to be the most feasible.

The problem is that this is too much work.

It seems that there is no such precedent for this in the field of warship manufacturing in the world.

It's all about building the hull first, and then installing weapon systems.

Power or something, this is normal, but the bridge is originally part of the hull.

"If we follow this plan, how many years will it take to complete the transformation?" Liu Yijiu thought for a long time before asking them.

"The transformation of the hull part of the ship can be completed within three years."

"What about weapon systems? This is a bit different from the previous plan. "Three years, it's still acceptable.

Weapons outfitting, especially various systems, are basically carried out in the process of hull modification.

"I think that the 20 secondary guns on both sides can be completely dismantled, and the secondary guns with a range of more than ten kilometers will not be of much use in future wars, and we should change these 127 mm secondary guns into smaller-caliber and faster high-level dual-purpose guns to defend against threats from the air."

"The secondary cannon still has to be left, and sometimes it is still good to use it to deal with some small fish and shrimp or something. However, it is best to change the caliber to the same model as the domestic one. Liu Yijiu did not agree to remove the secondary artillery, "If all the missiles are used to attack, the cost is too high, and the cost of artillery shells is far lower than that of missiles." Moreover, in order to strengthen the density of fire, it was necessary to increase the number somewhat, and this was mainly considered for small-caliber rapid-fire guns......"

Liu Yijiu pointed to some parts on the model of the warship.

Although this battleship is thick and durable, and it is not easy to sink, it can defend against incoming missiles, which is much better than being hit and repaired.

And, he's going to make this a hedgehog!

Whether it is offensive or defensive, it must make the whole world tremble.

Otherwise, sorry for such a title as a missile battleship.

(To be continued.) )