The perspective relationship of the sketch of the wooden paddle steamer made Lu Chen's old face blush, but these guys were stunned, and they were shocked, which made Lu Chen blush even more, and he suddenly remembered that ancient Chinese paintings didn't seem to pay much attention to perspective.

However, this is not important, the important thing is that a behemoth jumped on the paper, making Sun Quan and Lu Su shout, such a big ship needs a lot of oarsmen to start, it is okay at sea, and the wind is not enough to push it on the inland river. Then they saw the two wooden oars that Lu Chen had drawn on both sides of the boat, and two steam engines were installed in the inner cabin, so they hesitated, could it be that this steam engine was really greater than the power of the wind? How big does that have to be?

After calculating the proportions, Lu Su said that this steam engine must be as high as a two-story building, Sun Quan nodded and said, it will be built with a lot of iron! Blame it for being wasteful.

Seeing that Lu Su and Sun Quan seemed to be a little suspicious, Lu Chen was a little anxious, this was something he spent three full hours decribing! Although it's a little ugly, it's a waste of hard work! Naturally, Lu Chen had his own plans from the beginning, in order to sell his ship design, or give it away, in order to get benefits from Soochow, which was an exchange. For Soochow, the new warship is much stronger than the old warship power system, and it can be rowed. As for Lu Chen, he just drew a few pictures, and it was not real money, not a loss, as long as he could get what he wanted from Dongwu, it would be a big profit.

"Iron is not the most important thing, Zhongmou also saw the hydraulic punching car of my Yanmen Iron Smelting Plant, and must have a new understanding of iron smelting. Not bad. This labor-free press is several times more efficient than manual ironmaking, and more importantly, it can temper even more refined iron! Lu Chen said with a smile, "Moreover, the production of the same amount of refined iron requires more than half of the labor and time to produce the same amount of iron with the old process before." In this way, if Soochow also has such an iron-smelting process, will you still think that iron is not enough? Do you still think that making this ship is a waste of iron? ”

"This ......" A hint of surprise flashed on Sun Quan's immature face. Then it was quickly hidden. looked at Lu Su thoughtfully.

"Iron is not the key." Lu Su obviously came to serve as a staff officer for Sun Quan, and after thinking about it carefully, he said, "The key is. This steam engine consumes so much iron. That must have been a lot of weight. It is not known if the ship can carry it. Even if it can be carried, then it will definitely affect the carrying capacity of the vessel. And more importantly, it affects the speed of the vessel, as well as the steering flexibility. The steam engine built by Xiao Wenhou is indeed strange, but it may not be mature enough to be used on warships. At the very least, it needs to be verified in the real world to know the real effect. ”

Sun Quan nodded slightly.

"Haha, haha......" Lu Chen laughed dryly, and said in his heart, this fat man is really a fucking chicken thief! Lao Tzu is just brainy, just like that, it was originally for the empty glove white wolf, who the hell cares if the boat you build can work? Even if you make it and put it in the water, it will sink directly, and it's none of my business. However, now he naturally does not show this kind of thought.

"Xiao Wenhou, is there a precedent for this steam engine shipbuilding? Has Yanmen ever built a steam volume, a steamship? Lu Su asked suspiciously, this little Lu Bu said that the ranking was too awkward, and Lu Su said that he couldn't understand.

After Lu Chen imagined the picture of kicking Lu Su down Xuanwu Avenue in his head, he finally calmed down a little, and patiently kept his hands from fanning his chubby old face. Then, Lu Chen smiled and said: "The one hundred and twenty-step long keel is all made of fine iron, and the skeleton of each cabin is also poured from fine iron, and finally, a huge piece of iron sheet is covered with the ship!" You can build a huge ironclad ship that is 120 paces long and 30 paces high. Powered by eight steam engines, it is as fast as the wind. In the middle of the river, hehe! Hehe! Hehe...... You don't even use weapons, you don't need soldiers, you just have to drive your ships on a rampage, and as long as you sink all the enemy ships, you're hard, oh no, you've won. Ahem, do you like it? ”

"Is there really such a ship?" Lu Su was a little excited.

Sun Quan pretended not to care, and secretly glanced at Lu Chen with small eyes, as if he couldn't wait to listen to what was going on.

"Ahh I would have built such a ship. Lu Chen regretted it.

"Why didn't it be made?" Sun Quan wondered.

"Because the river in Yanmen is no more than a hundred steps wide and no more than a dozen steps deep, hey, I can't put it down." Lu Chen joked. Two second goods, Lao Tzu gave you drawings, is he worthy of you, and he is still fucking picky? Why am I in Yanmen, where can I go to build a big ship? Make it and open it in your own bath?

"This ......" Sun Quan was young after all, and his face was quite thin, he was a little embarrassed and glanced at Lu Su.

"Oh. I see, there is no precedent. "Lu Su is thick-skinned because he is a businessman.

"It's a pity!" Lu Chen was even thicker-skinned, because he was a down-and-out petty trader in later generations, "If only I could drive a boat on the grassland, with such a big ship, I can destroy Xianbei." ”

Lu Su rolled his eyes and didn't speak again.

"Won't a ship made entirely of iron sink?" Sun Quan suddenly laughed, "I have to say that the iron ship will indeed be very strong. Some of our warships in Soochow were also loaded with iron plates in front. However, it is all made of iron, and this will definitely sink. ”

Lu Chen was stunned, what kind of technology level is this? Wood can float on the water, so a boat made of wood will not sink. Iron can't float on the water, so ironclad ships have to sink? Mentally retarded.

"Figured out the point, okay? Two, you need to pay attention to coal! It's the energy source of the steam engine! It's coal! Lu Chen covered his face, and finally couldn't help but say his purpose, the two of them talked about the topic farther and farther, and if they didn't pull it back, they were afraid that they would have to study the Euclidean principle.

"Oh!" Sun Quan's face was slightly red, and then, stubbornly, "But, with coal, the iron ship still has to sink!" Then we can only build wooden steamboats, which can walk without wind, but the speed and carrying capacity are ......."

"Stop! Let me tell you about it. I don't know what your purpose is for coming to Yanmen, except for congratulating me. I don't care about that now. My purpose is very simple, I will provide you with technology and ideas, provide steam engines, and help you build ships. What I want is very simple, I just need the coal mining rights of Soochow! How is it? You can also tax coal mines. Lu Chen said.

"But the ironclad ship is going to sink ......" Sun Quan hesitated, Lu Chen was too straightforward, he didn't have any technical content at all, he was so uncomfortable.

"Shen your sister!"

"Shang Xiang? What's the matter with her? (To be continued......)