After half an hour of adding water, coal, and a series of preparations, the immobile behemoth finally moved, and a trace of steam wafted out from the exhaust pipe above, and from a distance it looked like an ancient beast waking up from its slumber.

"Almost, huh?" With the experience of later generations, Li Chengqian felt that the time was almost up, and looked at the old man beside him and asked with a smile.

"The steam has escaped, and it's ready to go!" The old man muttered, staring intently at the huge front of the car, and the nervousness on his face was palpable.

After all, trains are a new thing in Datang, and no matter how high the technology and craftsmanship of the old man are, he is not 100% sure that this steel giant will be able to move, and it is understandable to be nervous.

The thunderous whistle of "Woo ......" suddenly exploded in the factory, shaking everyone involuntarily covering their ears, and Li Chengqian even scolded angrily.

However, his voice was completely muffled by the loud whistle, and no one knew what he was scolding.

In fact, there is no way to control the front of the car, the current steam engine is not without any problems, when the steam pressure is too large, he must discharge the steam through the air release valve, otherwise the front of the car is likely to blow up before it moves.

Li Chengqian also understood the truth, but the sudden voice was too loud, making it difficult for him to control his emotions, and the sentence 'your uncle' was more of an expression of emotion, rather than really wanting to scold.

Datang's steam engine is still too backward compared to later generations, both the sealing and the material are much worse, so if you want to make the front of the car move, the process is far more complicated than imagined.

First of all, the water in the tank of the steam engine must be boiled, because if the water does not boil, there will not be enough steam, and there will not be enough power.

Secondly, even if the water is boiled, the steam engine cannot be put into use immediately, because there is still some cold air in the cylinder at this time, and the concentration of steam is not enough.

If the steam engine is put into use at this time, it is likely to start suddenly, and then because of the sudden discharge of steam, the follow-up force is insufficient, which will cause the vehicle to stop, and even damage the steam engine in serious cases.

Therefore, all the water must be boiled, so that the steam overflows the entire cylinder, and then a part of the steam is discharged at this time, so that the pressure in the cylinder is kept in a moderate state, in this state, slowly start the steam engine, use the medium level of pressure to push the cylinder to work, so that the head of the car slowly moves, and then wait until the gas concentration in the cylinder rises again, you can slowly accelerate the front of the car.

This process must be carried out and must not be sloppy, and this is also the experience summed up through some past accidents.

When the steam engine first appeared, some people tried to start the steam engine immediately after the steam was full, but the end result was that the steam pressure was too high, which directly burst the cylinder top, resulting in a steam engine having to be transported back to the research department for repair.

It is precisely because of this that the research agency has summed up a lot of experience in the process of continuous repair of the steam engines sold, and applied all this experience to the development of this train.

After a while, the whistle finally stopped, but everyone didn't let go of their hands covering their ears, and God knows if the bastard on the train would come again, so it was better to take precautions.

"Boom, boom...... ...... "A series of voices that Li Chengqian was very familiar with sounded out.

"Move, move, move, move......" As the huge steel wheels moved little by little, the people in the entire factory hula all rushed forward two steps, and countless people muttered with trembling lips.

Songtsen Gampo stood beside Li Chengqian, watching the huge steel beast slowly move forward, his expression was indescribably strange, both a little excited, and a little sad, in short, an indescribable look.

However, Li Chengqian no longer had the heart to care about what he was thinking, from the moment the front of the car moved, his heart began to be fierce and beating, and people did not feel that they began to walk towards the moving front of the car.

"Your Highness, what are you doing? Dangerous! Yang Yuxin, who was always paying attention to Li Chengqian's movements, first noticed his abnormality and stepped forward to stop him.

After all, the steam locomotive was in trial operation for the first time, and no one knew that the steam engine would not explode suddenly, and for safety reasons, Li Chengqian's position from the front of the locomotive was actually very far away.

But now that Li Chengqian has to lean in front in person, this means that the risk will be very great, and Yang Yuxin will naturally not let him be as he was.

Li Chengqian knew very well why Yang Yuxin stopped him, and raised his hand to pull her aside: "Don't worry, as long as the car moves, there will be no problem, if there is danger, you can see it from the reaction of the front of the car, and it will be too late to leave when the time comes." ”

And in the middle of these few conversations, someone was already one step ahead of Li Chengqian and surpassed him.

The person who walked over was Gong Yihan, that is, the old man of the Gong Loser, this old guy seemed to be stunned, looking at the front of the car slowly moving forward with fixed eyes, and muttering the blessing of the ancestors.

Almost everyone in the huge factory was in a state of stupidity, as if they didn't believe that the slow-moving behemoth was their work.

Although they had the confidence and determination to make it move at the beginning, there was still a gap between what they imagined and what they actually did.

It's like buying a lottery ticket, in fact, everyone has fantasized about what would happen if they won the jackpot, and what kind of performance they would have at that time. But what about actually winning the jackpot? We didn't perform at all as we had envisioned.

At present, these people who participated in the manufacture of the locomotive of the train are the same, don't look at them working hard here, but in their subconscious, they don't think that this behemoth can really drag hundreds of thousands of catties of goods around, and they are even skeptical about whether they can move.

Now, however, the fact is that the steel behemoth is really moving, and its speed is slowly increasing, from the beginning of the slow movement to a level similar to the normal walking speed of a human being.

"His Royal Highness the Prince, Grandpa, it moved, it really moved, we succeeded, succeeded!" Just when everyone was muttering and not knowing how to react, Gong Yilun leaned out of the window at the front of the car and roared like crazy, as if he was venting and swearing! nt

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