Chapter 2125

"Don't you say it can lose weight? Why am I so heavy in my hand? "

"Air magic stone only input energy can produce upward lift, you just hold a magic stone, of course, no response."

"I see." I nodded and asked, "does this stuff consume a lot of energy?"

"It should be said that it is very low. In any case, it saves energy than the flight mode we used before, and the most important thing is that the flying props made of magic stone are very safe, because even if the energy input is stopped, it will not lose its buoyancy immediately, but will slowly reduce its buoyancy. Before, we once made a single reconnaissance flying suit flying in the sky. Suddenly, the magic crystal burst. After that, the flying props that lost power didn't fall down directly, but glided slowly to the ground. There was nothing wrong with the test pilots. "

It's good to listen to this muscle man, but I'm not a layman, so it's not easy to fool. "You say that this thing will slowly lose its buoyancy when it loses its energy supply, which means that there are signs of incomplete energy circulation inside this thing. Can I understand that this thing starts very slowly

As soon as the muscle man listened to me, he immediately admitted, "yes. The biggest drawback of this air magic stone is that the starting time is a little long. Generally, it needs to start charging seven or eight minutes in advance before it can fly. Moreover, the lift will not reach the maximum value in an instant, but will increase slowly

"This thing is quite smooth."

"Unfortunately, it's too stable, so it's not very military."

"Who said that?" I took the air magic stone and shook it in front of him and said, "you have made a mistake in the use of the air magic stone from the beginning."

The old man, who had never talked much before, immediately retorted after hearing my accusation that they were not using the right way: "who said our method was not right? Can rely on the buoyancy of the air magic stone to make the props fly is not the way to use it? Can you do anything else? "

"No, since the air magic stone can generate buoyancy, it is natural to use this buoyancy. But you know it's too slow to charge or release energy, so the flexibility in the air must be terrible. Such a thing can't be used for military purposes, otherwise it will only become a live target flying in the air. But why don't you think about using other power to provide power? Adjust the weight of the aircraft and the buoyancy of the air magic stone to the same size, so that the whole aircraft will enter a pseudo weightlessness state. At this time, if you can adjust the forward direction and flight height by relying on the propeller, don't you need to control the air magic stone? "

"Why? This is also a way! Why didn't we think of it? " The old man was stunned by me. The muscle man next to him also thought about it. Obviously, they are also considering the feasibility of this method. Of course, the method itself is very feasible, so they quickly figured it out. If the air magic stone is used to resist gravity, the rest of it depends on other propulsion methods to provide power. In that case, the technical difficulty is not very high. Moreover, the most important point is that such an aircraft will obtain the maneuverability unmatched by pure air magic stone powered aircraft, which is the biggest disadvantage of air magic stone powered aircraft.

The old man who got the new method was so excited that he almost ran to do the experiment on the spot. Fortunately, he was pulled by the muscle man. Later, he was persuaded by his assistant, muscle man and the fat man to cancel the plan to do the experiment first.

After watching the air magic stone, I looked at the other equipment in the equipment warehouse with muscle man. It was found that the equipment of the iron Empire seemed to rely on the magic stone. Just as modern war cannot do without all kinds of explosives and gasoline, the weapons of the iron empire are a pile of scrap iron without the magic stone.

After visiting the equipment depot, we went on to visit the living facilities in the city and the legendary imperial library. However, we felt that the construction of the city was not bad, but the imperial library was a bit disappointing. Although it sounds like the imperial library is quite magnificent, after being shocked by Eisinger's library, the library here is just the size of the township library in my opinion, which is not comparable to the large library of Eisinger.

"How about it? Is the library of our iron Empire great? " As the head of the technology department, the old man was very proud of the library in front of him, but he didn't notice my expression, which was obviously not shocked.

Perhaps seeing that I despised the library, the fat man, who had been keeping a low profile before, suddenly said, "just have a look at the library. If you look through all the books and take ziri, you won't have to leave for years. I don't think we should go to the port to see the ships of our iron empire? You can also have lunch on the boat

Because the proposal looked at the military department in charge of the muscle man, the muscle man immediately began to support the fat man's proposal. The old intellectual looked rather depressed and obviously not very happy. However, two of the three guides on the scene supported it, so he had to agree.

I was excited when I heard that I was going to visit the spaceship. In fact, the technology of the iron and steel empire is not very special. I just compared the technology of the guild and determined that the technical level of the iron and steel empire was not much higher than that of us. The only technologies that I valued were energy conversion. Besides energy conversion technology, the only thing I was interested in was empty The use of gas magic stone technology. Although muscle man briefly introduced the mining and utilization of this kind of air magic stone, such an important technology can't be finished by just listening to it. It doesn't count if you don't actually look at it or even experience it yourself.Because of the distance between the airport and the airport, we didn't walk there. Of course, the other party didn't let me take a flat car this time. Instead, they gave me a very good automatic car. The shape of this kind of car is very similar to that of European style carriage, but it is driven by its own power without horse traction. In addition, the operation technology of this thing inherits the consistent style of steel Empire, just like the flat car before, it can be controlled by only one control lever.

When I arrived outside the airport in this automatic car, I found the port very interesting. In fact, this is not a simple airport in my imagination, but a multi-functional mixed port. Although it is underground, the space at the port is quite huge. At the entrance of the port is a large combination of stairs, through which you can enter the upper waiting area and the lower floor area of the port ground.

Muscle man first took me to the lower level, which is much lower than the city floor, but the space is also huge. Only one-third of the ports in the lower zone are land, and the other two-thirds are water. There are a lot of ships on it. However, these ships are obviously different from ordinary ships, because their decks are very narrow and small, and the volume of these ships is not very large. What's more strange is that these ships do not have masts, so they are much lower than ordinary ships.

"Are these submarines?" Just a glance at the ships in front of me reveals their common features. Sealed cabins, no masts, high-level propellers, roof impact angle, if these things are not submarines, I really can't imagine why they have these settings.

Sure enough, the muscle man said with appreciation: "ziri president is really a man of understanding. This is a submarine warship, which can directly attack the enemy under the water, and can also surface to fight."

I nodded to make sense, and then asked, "but why do you want to build a submarine out of wood?"

"Why? Can we use other materials without wood? " Asked the old man, who had been unhappy about being pulled out of the library.

"Isn't it possible to use metal? In terms of ductility and compressive strength, how about the properties of metals

"With metal? Are you kidding me The old man said with disdain: "the structure of the ship on the sea is simple. It can barely make do with metal. The structure of the submarine itself is very complex. If you use metal, the weight will increase by at least one third. Can the submarine float?"

"But our guild submarines are all made of metal. I feel buoyant."

"What? Do you really build submarines out of metal? " At first, the old man thought that I was talking nonsense because I didn't understand. But when I said that there were metal submarines in our guild, he was not calm at once. "Do you really have metal submarines?"

I nodded, "of course, and more than one. One of them is a submarine carrier. It's almost as big as your port. Isn't it floating and sinking freely? "

"But how did you build such a large hull?"

"Casting? Isn't that how it was cast? "

Knowing that I didn't understand, the old man quickly explained, "I asked you how to shape the hull. How can such a large hull be cast at one time? Do you have a furnace bigger than the port? Besides, even if the casting is finished, how do you forge it? "

"Why a molding?" I am surprised to ask a way: "separate casting is not on the line."

"Separate casting? So your submarines are stitched together? "

"Yes, what's wrong with this?"

"Is your ship watertight?"

"Leakage? Why is it leaking? "

"But the metal is not as soft as wood, and the structure in the casting process is not very accurate. There must be gaps between the casting parts. How do you deal with these gaps?"

"Gap? Just weld it up

"Welding..." The old man looked at me in surprise and asked, "what is welding?"

"Don't you know welding technology?"

"Welding technology?" The old man shook his head and asked, "what is this welding technology for? Is it special for plugging? "

"It's not specially designed for plugging, but it can be used for plugging. To put it simply, welding technology is a technology to connect two pieces of metal into a whole piece. If your welding technology is good enough, the strength of the welding position can even exceed that of one-time casting parts. However, the technical requirements in that case are too high. Generally, we can only ensure that the strength of the welded joint is slightly lower than that of the casting part, which does not affect the use

"It's unbelievable that there is such a technology!" When the old man heard about my introduction of welding technology, he was full of exclamations. However, I didn't think it was anything. First, the welding technology itself was not a particularly exaggerated thing. Secondly, we had been using it for a long time in the guild and had been used to it for a long time.

After observing the appearance of several submarines from a long distance, I proposed to go inside. Muscle men all know that the purpose of this tour is to cooperate with us, so they readily agreed to my request.

After boarding the ship, I found that these submarines were not as big as I thought. Although it seems that the hull is not small in appearance, the hardness of wood can not be compared with that of metal. Therefore, in order to ensure the strength, the steel Empire adopted the method of thickening the shell to meet the needs, and the direct effect of this method is to occupy a large part of the internal space of the hull. It looks like a big boat outside, but when you go in, you will find that the inside is actually very narrow.After entering the boat by the suspended ladder, we first arrived at the cockpit, which was similar to that of a general submarine. However, apart from this cab, there was little room left for people to move inside the submarine. From the cockpit to the stern is the huge propulsion cabin, where there is only a narrow passage that can barely be pushed through except for the huge mechanical body. People like the iron empire are thin and small, but it's nothing. I can only stretch my head outside to have a look at it like this, and I think I have to take off the armor when I want to remove it.

The bow direction is slightly better than the stern, but it is also crowded. 90% of the space in the bow is occupied by a pile of giant compressors. Their main job is to control the submarine's floating and diving. The space left in the bow is the weapon cabin, but it's not fish. It's a weapon that amazes me.

"Isn't this a sonic gun?" Although I didn't see the outer structure of the ship, I recognized at a glance what principle the weapons on board worked on.

Seeing that I had guessed that this thing was a sonic gun, the muscle man immediately wanted to give me a detailed introduction, but he was interrupted by me before he came and opened his mouth, because I didn't want to know the specific properties of this thing, and the reason was that all the boats in our guild were made of metal.

There are two sides to everything. The warships in our guild are basically metal hulls. In terms of firmness, they are definitely much better than those of the iron empire. However, metal has the advantages of metal, but wood also has the advantages of wood. It's OK to install this sonic weapon on the ship of the iron Empire, but if it's loaded on our ship, as soon as the gun is fired, I don't know if there's anything wrong with the enemy. Our own ship will definitely disperse first. Metal is hard enough, but its ability to absorb vibration is so weak that wood is much better. The directional shock wave generated by the acoustic gun will cause high frequency vibration of the ship itself. The wooden ship itself is a soft connection, so the vibration will be consumed in the transmission process, but not the iron ship. This vibration will cause the hull to disintegrate due to resonance. Therefore, if we install acoustic gun on a metal ship, we must first study how to remove the shock, but at least to the purpose So far, we are still in a semi blank state in this aspect of technology, so I have no interest in this sonic gun. Besides, the sound wave attenuates rapidly, so the range is certainly not far away. For example, in the current naval battle, we are always bombarding each other across seven or eight kilometers. For example, the sonic gun, which does not even have a range of 100 meters, is basically a decoration.

After interrupting the muscle man's introduction, I asked to go to the power cabin for a turn. After taking off the armor, I squeezed into the mechanical room under the guidance of the maintenance man on board, and then listened to the other party's introduction. According to the repairman's introduction, I can conclude that the thrusters of the iron Empire use a totally different way of propulsion than ours.

The underwater thruster of our guild uses magic array technology. It sucks in the current by water magic, then pressurizes and ejects at high speed from the stern of the ship to generate propulsion force. In this process, there is no propeller or impeller running in the water. Therefore, compared with the general thruster, it is much quieter and has high efficiency, especially when it is at high speed The speed of the flow itself results in the loss of power. But because the propeller we use from Atlantis doesn't have a propeller mechanism, it can't be converted to a land engine because it doesn't have any rotating parts. In contrast, the thrusters of the iron empire are far behind. This kind of propeller is driven by propeller, which is noisy and has complex structure. Moreover, the rotating shaft has to bear huge torque when working, so the failure rate is quite high. However, the magic conversion furnace used by their thrusters is much more advanced than ours. This is obviously a specialty project of the iron empire. It seems that their technology will have obvious advantages as long as they touch the magic energy conversion.

After visiting the internal structure of the submarine, we went back to the shore to see the submarine going out and returning. This port is actually much lower than the sea level, so it can't connect directly to the sea water outside, otherwise the sea water will pour back and flood the port. The iron Empire used the same principle here as the torpedo tube on a submarine. They built several thick pipes between the harbor and the sea water outside, and these pipes had sealing caps at both ends. When a ship wants to go out, the water level in the pipeline should be adjusted to be equal to the water level in the port, and then the submarine will be driven into the pipeline, and then the sealing cover will be closed. After that, the German air in the pipeline will be drawn out and water will be injected into the pipeline. When the pipeline is completely filled with water, the sealing cover on the other side will be opened, and the submarine can directly drive into the sea. When a submarine wants to return, reverse this procedure so that the submarine can enter and leave the port without allowing the sea water to pour back.

After leaving the submarine port, we returned to the city's ground level, and then visited the water port here. The height of the port is at the same level as the sea level outside, so there is no need for a lock, so ships can enter and leave directly. Compared with the wooden shell submarines in the submarine port, there are more ships in the surface port. Metal ships are the mainstream ships here. Because there is no water pressure problem, the sealing of surface ships is much simpler than that of submarines. Even if the steel Empire has no welding technology, it can be done with some indigenous methods. However, after the visit, I still felt that the ship technology of the iron empire was very poor. However, considering that their main activities are on land, and there are reefs outside the islands, it is difficult to get out even if there are ships. Therefore, it is understandable that they do not attach importance to shipbuilding technology.After visiting the water port, we went back to the entrance and entered the airport area on the upper layer of the port from the beginning of the spiral staircase. This is the area where I want to see the spaceships most. I don't know what the spaceships of the iron Empire look like. I hope their ships are not just seagoing ships. (to be continued. If you like this work, you are welcome to start（ qidian.com ）Your support is my biggest motivation to vote for recommendation and monthly tickets. )

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