At dinner in the evening, Liu Yifeng ate with Song Yingxing and Zhang Jun. It's not that he enjoys the highest treatment on board, it's that he's the cook. The yusheng eaten at night, the cook on Zhang Jun's boat couldn't do the delicate work of cutting yusheng, so naturally Liu Yifeng did it for him.

"It's sweet and fatty, it's so delicious."

Song Yingxing also nodded, tasted the melt-in-your-mouth sashimi, and sighed: "It's a pity that there is no mustard sauce, and the taste is short." ”

Yusheng, that is, the sashimi of later generations, began to be eaten by people living near the water in China from the Spring and Autumn Period and the Warring States Period. It's just that the traditional Chinese fish eat freshwater fish, and there are too many parasites in freshwater fish, so gradually there is a saying that you can't eat more fish.

The Song Dynasty began to have iron pots, and there were more cooking methods for fish, and yusheng slowly faded out of the mainstream vision. There is also a main reason that there was no cold chain transportation system in ancient times, and it was only by living next to the water in the real sense that there were conditions to eat yusheng.

Liu Yifeng also put a piece of sashimi in the mouth, which is indeed fatty and sweet.

This gathering can also replenish the most salmon on the west coast of North America in the sea, which can be regarded as luck. Most salmon have already swung upstream, spawning in many freshwater rivers off the west coast of North America, and do not return to the ocean until summer.

The dozen or so salmon caught by the crew today are estimated to have gotten lost and failed to find the estuary, so they entered the mouths of the crew members on the Zheng He class.

Well, the joke is too cold.

After Liu Yifeng finished complaining about himself in his heart, he stretched out his chopsticks to clip the last piece of yusheng, but he bumped into Song Yingxing and Zhang Jun's chopsticks. The three of them all looked at each other, Liu Yifeng was the first to take back the chopsticks, Zhang Jun hesitated for half a second and also took back the chopsticks, and Song Yingxing smiled.

"Gone?"

"You asked me to give the rest of the fish to your crew."

Zhang Jun had nothing to say, it was true that he only kept two, and the rest were sacrificed to the brothers. In fact, two salmon that stored a lot of fat for spawning were enough for the three of them to eat, mainly because they were too delicious, and they were a little unsatisfied.

"Yusheng is still not suitable to eat more, Lord Zhang, I read in ancient books that it is said that if you eat too much yusheng, you will become thinner and thinner, but I don't know if it's true?"

In terms of understanding Yusheng, Zhang Jun, who was born in the navy, must be an expert.

"It's true that people who eat too much will do this, but let's eat a few that don't have a big problem."

The two chatted a few more words, and Song Yingxing turned the topic to the frolicking of the two in the afternoon.

"Oh, this kid hid good things and didn't take them out, I taught him a lesson before he obediently handed them over."

Song Yingxing looked at Liu Yifeng, Liu Yifeng was not as casual as he was when he faced Zhang Jun when he faced Song Yingxing, and quickly straightened his body and said: "Lord Song, I just had a sea ship idea when I was observing the ship model at Boss Qiu of the Fleet Chamber of Commerce, if it is feasible, I think it should become a merchant ship faster than Zheng He's class." ”

Hearing this, Song Yingxing looked at Zhang Jun again.

He doesn't understand sea ships, but if there is really a ship that is faster than Zheng He's class, or a merchant ship, then the sailing time between Dongshan Prefecture and the mainland will be reduced, which is beneficial to Dongshan Prefecture and not harmful, so he needs to listen to the opinions of experts in this area.

"He said two improvements that I think make a little sense. So when you get to the city of Yushan, Lord Song, you have run out of this kid, and I want to borrow him to go to the Admiralty. ”

Liu Yifeng felt that his life was really hard, but he endured it for the sake of the future.

He did suddenly remember the relevant details of the clipper when Zhang Jun locked his neck.

There are not many secrets about clippers, which can be achieved with the current level of industry and shipbuilding capabilities.

"Absolutely." Song Yingxing asked: "I don't know what are the two improvements?" ”

"Liu Yifeng, tell it yourself."

Song Yingxing looked at Liu Yifeng, he was very concerned about those two improvements. First, it is really possible to have a ship that is faster than Zheng He's class, which is good for Dongshan Prefecture. Second, in the "Heavenly Creations" he wants to write, there is a description of the Zheng He-class and the Nanyang-class, which are called the most powerful warships in the world, the fastest ships and the largest ships by the navy, of course, the kind of descriptions that will not leak secrets.

If there is another kind of ship, and it is a ship that is faster than Zheng He's class, he feels obliged to write it into "Heavenly Creation".

"Lord Song, in fact, there are more than two points, but Lord Zhang was too anxious at that time, so I just said two points first. However, these two points can indeed speed up the voyage. ”

After speaking, he looked at Zhang Jun and asked, "Lord Zhang, do you have a ship model in your cabin?" ”

Zhang Jun said with a suspicious face: "How do you know that I have a ship model?" ”

Of course, it was Boss Qiu from the Fleet Chamber of Commerce who told me.

However, Liu Yifeng didn't say it, just smiled and waited for Zhang Jun to bring a ship model. If you look closely, it seems to be a Zheng He-class ship model.

"Be careful, this is a limited specialty of the Ministry of War, and you can't afford to pay for it!"

The military department changed to make models, this is a big pill.

After complaining, Liu Yifeng took the ship model and pointed the bow of the ship to the two: "You see, the first change I proposed is that the cabin here at the bow of the ship is set up with an empty cabin. ”

Song Xin was dumbfounded, not understanding the meaning of changing the bottom cabin in the bow to an empty cabin. And Zhang Jun is worthy of being an expert, and immediately explained: "If the cabin is empty, the bow of the ship can be lifted when it encounters waves." ”

Will you run faster when you lift it?

Liu Yifeng gave the answer: "Yes. ”

"Lord Song, have you noticed that the bows of the ships of the Zheng He-class and the Franco-class and the Dutch are much sharper than those of the Nanyang-class and the Fuchuan Guangchuan? The smaller the bow is, the easier it is to split the waves, and the less resistance there is. ”

Song Yingxing had experience in swimming and playing in the water when he was young, and instantly thought of the resistance when swimming, and made a sudden realization.

"Then why doesn't the Nanyang class also use a pointed bow?"

The body of the Nanyang-class is a treasure ship, and the bow of the treasure ship is a plane at an angle of 30-60 degrees to the sea surface, so you can imagine how much resistance there is when breaking the waves.

"I'll answer that question." Zhang Jun took over: "At the beginning of the design of the Nanyang class, it was a cargo ship or merchant ship that transported materials, and it was also a troop carrier of the Annam Metropolitan Protectorate, so it would not pursue speed too much. On the contrary, it is to seek stability, and the bow of the treasure ship is designed like that, and the bumps will be much weaker. ”

Song Yingxing suddenly nodded sympathetically, the Nanyang class is really stable, and the Zheng He class is fast, but when it encounters a larger wave, it is really bumpy.

"And what is the purpose of the empty bow compartment?"

"Lord Song, the bow compartment is empty, and it will be pushed up by the buoyancy of the sea water after encountering the waves, and with the sharp bow, the efficiency of breaking the waves is even higher than that of Zheng He."

Song Yingxing looked at Zhang Jun again for verification, Zhang Jun nodded calmly, but he was shocked in his heart, he didn't know how Liu Yifeng, a landlubber, could say something that the old crew only knew.

After getting Zhang Jun's affirmation, Song Yingxing was a little excited, and felt that his "Heavenly Creation" could be remembered again: "What about the second change?" ”