The successful operational test was followed by a number of tests. For example, the variable speed test. After the steam gate is cut off, another set of gears is manually switched to change the speed at which the shaft rotates. This is the plan proposed by Fang Zi'an before. In addition to the application of such means, Su Heng also proposed to control the opening and closing of the steam valve, and to control the reciprocating speed of the cylinder piston through the size of the steam flow to achieve the effect of controlling the speed. The combination of these two creates exactly four gears. In the case of a half-open valve with a full valve for steam supply, the two gear systems are manually switched to create four operating speeds. Although the process of switching was manual, it was far beyond Fang Zi'an's expectations. The tests were also successful.

And then there is the most important load test. This is what Fang Zi'an cares about the most. But the means of testing are a bit cumbersome. Fang Zi'an can only use the roughest method of traction and lifting. With 1,000 catties of heavy objects as the base, 2,500 catties of heavy objects were eventually drawn. This test method is very crude, but even so, Fang Zi'an basically estimated that the power of this steam engine is about 200 horsepower. The error is large, but this does not affect the final result. Because the merchant ships of the Great Song Dynasty are basically ships of about three or four hundred materials, and the power of two hundred horsepower is enough to propel Rufei, which is conclusive. As for the speed under different loads and other factors, Fang Zi'an has no way to calculate, which needs to be tested in practice. Fang Zi'an only needed to know whether the power of this behemoth could propel the existing sea vessels to sail.

It wasn't until noon that it was all over. Fang Zi'an couldn't wait to see what kind of effect this steam engine would have when it was installed on a big ship. So he asked Qian Kang to disassemble the parts of the steam engine in the fastest possible time, and transport all the parts to Wantou Village for installation. It's one thing to make something, it's another thing to really put it into practice, Fang Zi'an knows that there must be all kinds of problems in the installation process, and there are still many difficulties to overcome ahead, but everything is already unstoppable from coming out of this new machine.

Before leaving, Fang Zi'an left Su Heng a drawing of the propeller, which was another component needed for this steam engine after it was put on board. Su Heng was also very concerned about the practicality of the steam engine, and he also agreed to take all the people to the site for assembly and testing during the installation. And before that, they need to rest for a few days. Su Heng himself also has to digest the cognition of the steam engine, and he has a lot of ideas and inspirations that have been generated in this manufacturing. It's like a new sprout about to break the ground, and it's as unstoppable as it gets, waiting for him to sort it out one by one.

From falling asleep in the evening until the next morning, Fang Zi slept enough for six hours. I got up early in the morning, and after a punch and kick, I was comfortable and full of energy. After taking a shower and having breakfast, Fang Zi'an went to the yamen.

Yesterday morning, Fang Zi'an asked Shen Ling'er to go to the yamen to report his illness for himself, and Shen Ling'er told himself that Xia Liangdong also diligently asked him what his illness was, and said that he would come to visit. Fang Zi'an knew that he had to take Xia Liangdong seriously, and he couldn't take him too seriously. This kind of person is not enough to succeed and more than to lose, and if he can't do it himself, he will suffer in his hands, so it's better not to teach him what tricks he can catch. Therefore, I must go to the yamen early today.

When he arrived at the yamen, Xia Liangdong really came to ask questions, and Fang Zi'an naturally dealt with them one by one. On this day, Fang Zi'an didn't go anywhere, only stayed in his public house. In the evening, Fang Zi'an was just about to leave the public house and go home, but Xia Liangdong seemed to be waiting for Fang Zi'an, standing at the gate of the yamen and waiting for Fang Zi'an.

"Lord Fang, is your body better? Look at your complexion, in fact, you don't have to bring illness to the yamen, it's nothing to rest for a few days, I'll give you a top. Xia Liangdong seemed to have nothing to say.

Fang Zi'an was in a hurry to go home, and said perfunctorily: "Thank you, Lord Xia, no need, I just occasionally felt the cold, and today I am much better." ”

Xia Liangdong coughed and stood there looking at Fang Zian and smiling. Fang Zi'an was surprised: "Is there anything else that Lord Xia has to do?" If it's all right, it's time for me to go home. ”

Xia Liangdong hurriedly said: "What? Lord Fang forgot to promise this official? ”

Fang Zi'an was stunned and puzzled: "What's the matter?" I'm a little confused, what did I promise Lord Xia? ”

Xia Liangdong's face sank, and he smacked his lips and said, "Lord Fang, are you deliberately pretending to be confused?" Or perfunctory to me? Today is the third day. What I told you that day, you said you would give you three days to think about it, but I don't know how you thought about it? ”

Fang Zi scolded in peace of mind, of course he knew that today was the third day, but he was just pretending to be confused. I didn't expect this guy to remember it so clearly, blocking the door and asking himself for an answer.

"This Lord Xia, my body has not been very good in the past two days, I had a cold wind yesterday, I slept all day, and I didn't think much about it because I had a headache and brain fever. In this way, give me three more days, and in three days I will give an answer to Lord Xia. Fang Zi'an smiled.

Xia Liangdong smacked his lips and groaned, "Lord Fang." You don't have to be like this, could it be that Xia Liangdong is a fool? Three days later, and then three days, you obviously refused to answer. Lord Fang, this official is very kind, and I hope to become friends with you. Everyone has wealth together, and they live a nourishing life. It's disappointing that you don't give face so much. ”

Fang Zi'an smiled: "Where did Lord Xia say, I really didn't think about it. Let's put it this way, I'm a timid person, and I really don't dare to act too rashly about some things. After all, if those things are poked out, they will be killed. The population here is not strict, and I don't know if the people under your Lord Xia are reliable or not, so naturally I have to think about it more. You Lord Xia are bold, and my son Encore is not as bold as you. ”

Xia Liangdong scolded in his heart, this guy actually had the face to say that he was timid, this was simply talking nonsense to his face. Xia Liangdong actually understood in his heart, Fang Zi'an was not a coward, he just didn't want to agree. What he said was a refusal. Even if I wait for another three days, I'm afraid there will be no results after that. Xia Liangdong lost his patience, and his intention was not really as he said, to take Fang Zi'an to make a fortune together and become a pair of partners on the road to wealth. Who would want to find someone to divide this kind of thing equally? Isn't it good for him to go into his pocket like a white flower of silver every year? Even if you have to win over some people to block their mouths, then this person can't be Fang Zi'an. Is there less humiliation this guy has brought to himself?

The reason why Xia Liangdong pretended to win over Fang Zi'an was actually because he wanted to attack Fang Zi'an. On that day, after the fifth prince of Qin suddenly sacrificed himself in the restaurant and asked Xia Liangdong to get rid of Fang Zi and protect himself, Xia Liangdong thought hard for a long time, trying to find a good way to get rid of Fang Zi'an. He finally came up with a solution, that is, to trick Fang Zi'an into joining him, using money as bait, and deceiving Fang Zi'an to falsely report to the soldiers to defraud him of salary. Once Fang Zi'an did that, he immediately reported it and turned his face and didn't recognize anyone. Fang Zi'an committed such a crime, does he still have a way to live? As long as Fang Zi'an fell into the trap, Qin Tan and the others would guarantee that Fang Zi'an would not survive.

But obviously, Fang Zi'an is too shrewd. He pushed back, obviously unwilling to cooperate with him. There is a high probability that this plan will be ruined. In this case, I have to use another method. Qin Tan only gave himself a month, and now more than twenty days have passed.

"Hahaha, it's okay, it's okay, it's okay for you to be afraid and worry, it's human nature. It doesn't matter, Lord Fang thinks about it again, this official will naturally not be difficult. However, if Lord Fang refuses to cooperate with me, wouldn't all the secrets of this official be known to you, isn't this a matter of giving the handle to Lord Fang's hands? The official was a little flustered. Xia Liangdong laughed in a low voice.

Fang Zi'an said: "Don't worry, Lord Xia, I don't know anything. Besides, some of what you said was just verbal, and if I wanted to do anything, I had to have proof. If there is no evidence, is it not a false accusation? Lord Xia, don't you say? I'm not going to trouble Lord Xia for no reason. In fact, as long as Lord Xia doesn't trouble me, I'm already thankful. ”

Xia Liangdong smiled and nodded, "Just kidding." Lord Fang, please go home and rest. ”

Fang Zi'an nodded and smiled: "Thank you for your concern, I took my leave." ”

Fang Zi'an walked towards the yamen, Xia Liangdong also let go of his body, and when he passed by, Xia Liangdong suddenly said: "Oh yes, there is something to tell Lord Fang, tomorrow night I invited our Yamen's boss, Lord Zheng, the fire officer, to drink, and Lord Zheng asked you to go with him, after all, we are his officials, I will tell you about this matter." Don't lose face, Lord Zheng is not easy to mess with, we still have a lot of things for him to help take care of in the future. ”

Fang Zi'an said: "Oh? Lord Zheng wants me to go by name? I don't know him well. ”

"Once born, second mature, it turns out that I am not familiar with him. You are the commander of the defense army, and he naturally wants to get to know you. That's it, tomorrow night at Zhangjia Restaurant on the west bank of West Lake, you don't have to be late. Xia Liangdong said in a deep voice.

Fang Zi'an was still waiting to ask again, but Xia Liangdong had already strode away. Fang Zi'an pondered for a moment, went out and got on the horse and galloped away with Shen Ling'er.

The Great Minister of the Southern Song Dynasty

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