In fact, there is only such a thing between husband and wife, and when the two of them make it clear, the rest becomes simpler.

Although Pei Yingying was unwilling, she couldn't say more at this time, and the rest could only wait.

In the following days, Li Yuanjing also devoted himself to the construction of steam ships.

Although I don't know much about the structure, I still know a little bit about the basic layout, and at least I can point them in the next general direction compared to the craftsmen who have a blind eye.

In fact, many things are like this, as long as the general direction is not wrong, through frequent experimental observation, the most suitable method can always be found.

Of course, failure is inevitable!

Even with Li Yuanjing, a pioneer, they still experienced many failures.

For example, the first 500 stone ship that was directly transformed, although it was only a transformation, and almost all the difficulties were eliminated, but the moment it was put into the water experiment, it still proved one thing to everyone.

"......" looked at the slow-moving transformed steam ship, Li Yuanjing's face couldn't help but show a wry smile, he seemed to be looking at this steam engine a little too highly.

"No one is fast yet, is it?" Cheng Chumo looked at the new ship slowly moving on the sea, and couldn't help but complain.

"Tear it down, change it to a 100-stone ship and continue to try!" Li Yuanjing decided directly.

The horsepower of this steam engine is too small to drive a 500-stone sea ship, and it still adopts the mode layout of the paddle wheel, so it does not have any advantage in terms of speed.

However, I have to admit that the ancients naturally had the wisdom of the ancients, and this experience also made Li Yuanjing understand a truth.

The rich have the ways of the rich, and the poor naturally have the thoughts of the poor, and no one should look down on anyone.

Although the steamship is not as high-end as those of later generations, it still needs a lot of precision parts to cooperate with each other to achieve the most perfect state.

However, in this era, it is impossible to make so many parts that can be called precision, and if it is forcibly arranged, there will inevitably be reverse results.

And these craftsmen came up with a reliable and practical way, since there was no way to make the layout go through so many detours with so many parts, so why pursue these? Wouldn't it be better to be simple and straightforward?

As a result, the layout of this paddle steamer is so simple that it is maddening, except for some waste of internal space, Li Yuanjing can hardly find any fault.

It is to fix the steam engine in the middle of the cabin, which is just right, and then run a thick enough bearing rod through the cabin, the bearing rod is required to be round and straight enough, which is not a problem for the craftsman, but it takes a little time.

In the middle, a circle of cogging is created, the cogging is also made at both ends, and then the paddle wheel with the same cogging is fixed to prevent slippage, so that the external structure is completed.

In addition, several bearings are installed on both sides of the ship, although the effect is not as good as in later generations, but it can also be used, and if it is paired with black oil, the effect is not bad.

And the most critical place, in fact, there is nothing critical or uncritical, the outside of the export part of the steam engine made a movable rod, which can ensure that the inside of the steam engine will not shake when it is operating, and the movable rod is connected to a large gear, the steam engine operates, the large gear naturally follows the operation, and the large gear operates, and the bearing rod connected to it will also operate, and then the paddle wheel moves.

The structure is simple, everything looks so perfect, but the power is too small.

Although this experiment ended in failure, it also gave them a lot of inspiration, because except for the fact that the motivation was too small, it was basically a success.

Although before that, they were busy for almost two months.

However, there were new problems with the next 100 stone boats, first of all, the problem of the boat, the 100 stone boats were difficult to find at first, and finally they found a river boat, and at the same time, this river boat was relatively simple, no different from the open air.

However, since it was used for experiments, these naturally didn't matter, but Li Yuanjing directly abandoned his original experience and chose to change the paddle wheel to a dark oar, which was really difficult for these craftsmen.

"Your Highness, this difficulty ......" Listening to Li Yuanjing's request, several experienced old shipwrights kept scratching their heads.

"The ship sinks ......," said another craftsman who was not very good at words.

"Just open your mouth!" Li Yuanjing naturally wouldn't take their advice, how could the propeller boat not speak? As for the water leakage, of course he has a way to solve it, as for whether it works, try it?

Next, several old shipwrights made a not-so-large opening in the stern of the ship according to Li Yuanjing's request, and then installed a hollow round pipe, and then the boatsmith needed to ensure that the part where the round pipe and the hull connected would not leak, and the rest had little to do with them.

Li Yuanjing made three sets of precautionary measures for waterproofing, the first and last set, the closest to the inside, is a cylinder, which is filled with black oil, this black oil is more viscous black oil after mediation, can not be dissolved with water, even if the seawater breaks through the first two lines of defense, it may not be able to pass here, and at the upper end of this, there is a remedy, similar to the principle of an infusion bottle, as long as it is found that there is less black oil, more black oil will be injected into it through artificial pressure.

And this is the last line of defense, but also the precautionary measures after the ship is stopped, the second set is similar to the pyramid structure, the closer to the tail, the less space, and between the two sets, there is the third set, through a pipe drawn out of the steam engine, so that the steam can always maintain a certain pressure here.

When the propeller is in operation, the water entering the interior is gradually pushed out by the pressure generated by the steam, similar to the principle of a needle.

As for the materials or something, the test doesn't matter, just the materials you can get at hand.

At the same time, however, another team is constantly searching for materials that can prevent the erosion of seawater.

And after three months of busyness, this modified 100-stone ship went to sea for the first time, and the speed was acceptable, of course, this is just for Li Yuanjing, for others, this is already a big surprise, and although the waterproof aspect is a little less ideal, but the overall is still good, and then adjust some details are almost the same.

However, the only regret is that a steam engine is almost fully loaded with the ship, that is, the ship has no other purpose except to run fast and keep running......