Hearing the basic data of the Yuanhang described by Han Chun, Li Yuanjing couldn't help frowning.

Listening to this data alone may not seem like a problem, but a careful conversion brings the problem.

Datang adopts a two-step calculation system, that is, one step on the left and right feet is counted as one step, and one step is about one meter and a half.

In other words, the length of this voyage is about 150 meters, and the width is about 45 meters......

Temeow's can be compared to two-thirds of the width of an aircraft carrier, and Li Yuanjing can even think of what these people want to do with such a wide ship even with his eyes closed.

To put it bluntly, this width is enough to put two steam engines side by side.

The advantage of this is that a lot of space can be saved in front and back for carrying goods.

But the disadvantage......

The large transverse surface means that the resistance encountered after launching will be greater, and the ability to resist wind and waves will increase to a certain extent in comparison, but it depends on the specific design, if there is a problem with the design, the resistance to wind and waves is even inferior to that of ordinary boats.

As for the 5,000 stones, in the conversion, one stone in the Tang Dynasty is about 53 kilograms, that is, the carrying weight is about 265 tons.

But with such a large hull and two bulky steam engines, the weight of the ship itself is not low, and there are always 500 tons, right?

That is, they used a 10,000-ton data to build a ship with a full load of less than a thousand tons?

Thinking of this, Li Yuanjing was embarrassed.

Although there are many differences between the two, for example, although this ship is partially made of steel, it is more wood, while later ships are navy armor steel plates, and the weight of each individual is different.

Li Yuanjing stopped and listened to the content of the class for a while, and found that this is a mode of learning and designing and discussing at the same time.

Anyway, no one has surpassed anyone by a large margin, except for a few masters who have some experience and speak more, the others are almost discussed.

Of course, Li Yuanjing is no stranger to this way of groping, although it feels very painful, but there is no way, this is the only way for human development.

When their generation has thoroughly understood this technology, the next generation will not have to explore a little bit like them, and they can stand on the shoulders of the previous generation to explore new areas.

The development of any country and any industry is inseparable from the experience of our predecessors step by step.

And Li Yuanjing also saw the future of this class, if it can succeed, this class will come out of a few real ship designers, which is the most important thing.

Designers don't need to know the technical principles of each part, but they do need to know how to lay out the ship to get the most out of it.

In other words, I draw a circle, and then in this circle into a number of small circles, a number of small circles to form a large circle, what I want is that after these small circles are combined, the big circle can be perfect, as for the small circles below, that is the matter of the specific person in charge, the scope is so large, you have to find a way to solve it.

"Let's go see the Voyage!" After listening to it for a while, Li Yuanjing felt a little bored, not that he looked down on people, but as a person who knew some three-legged cat kung fu, he really couldn't listen to these people's nonsense.

Of course, the reason for this is not these people, but they don't know anything, but they have to find the right answer on the premise of not knowing anything, and it is inevitable to take detours.

The development of the world's ships has taken hundreds of years to accumulate before it gradually has the appearance of later generations, and now, their accumulation is only equivalent to the level of one or two decades, and it is still far from maturity.

From afar, I saw a huge ship quietly docked at the shipyard.

Han Chun hurriedly and excitedly introduced: "Your Highness, that is the Yuanhang, the first water injection test was carried out a month ago, and the effect is not bad so far, the next step will be drainage, and then enter the next section of work, about three months later, the second water injection test will be carried out, if there is no problem, the dock test will be completed after the New Year." ”

Looking at the huge voyage, the expectations in Li Yuanjing's heart gradually decreased.

Sure enough, it is two huge chimneys in a double row side by side, this design has not been tried in history, but without exception all of them failed, and it cannot be said that they failed, but the effect was not as good as that of the in-line.

"Why is it designed like that?" Li Yuanjing asked, pointing to the two chimneys.

"Your Highness, this is also a helpless thing, we have tried the in-line mode before, but in this case, the output power of the two steam engines seems to be a little different, so yaw often occurs, and the control is not smooth, so it was changed to this layout, although yaw will also occur, but it is a lot easier to control." Han Chun said.

"......" Li Yuanjing instantly understood the reason.

Together, they are one steam engine controlling one propeller, and the two propellers are controlled by two steam engines alone.

The advantage of this is that if a steam engine fails, the boat can still maintain some power.

But is there an egg?

This ship directly put a question mark in Li Yuanjing's heart, and immediately boarded the unfinished ship to take a look, mainly to go inside to take a look at the design of the bottom of the cabin.

Then, Li Yuanjing completely abandoned the ship.

Although it cannot be denied the efforts of these craftsmen over the past year or so, we have to admit that their efforts are really not of much use.

The keel is made of steel, but perhaps it is not easy to worry about the welding technology, so a wooden structure is added to the side as a guarantee.

Li Yuanjing has nothing to say about this, let alone them, even Li Yuanjing is not very relieved.

There is no sealed cabin, many of the things that should be there are none, and the only advantage of this ship is that it is estimated to be large, steam-powered, and then there is no then.

This time, the dock water filling test is to test the floating attitude of the ship and whether it is leaking, and then the problems found will be dealt with, and then some internal construction will be carried out, and then the second water injection will test the same problem, and if there is no problem twice, it will enter the sea for the final test.

There is nothing wrong with the program, but the mode is very painful, and it is easy to fill the water, but the pumping is ......

Forget it, the picture is simply miserable.

Looking at the sea and looking at the east, Li Yuanjing felt that his trip to the sea might be delayed.

But there was no way, he would never take a ship like the Voyage out.

Looking at Han Chun, he sighed a little speechlessly and said, "Dispatch capable craftsmen, this king will personally preside over the construction of a ship!" ”

"No!" Han Chun's face was a little unpleasant, but in the end he nodded, the shipyard was Li Yuanjing's, even if he was dissatisfied, what could he do?