Adding water, adding coal, and a series of preparations. After half an hour, the silent and immovable giant finally moved. Slightly steam floated out of the exhaust pipe above. From a distance, it looked like an ancient beast waking up from a sleep.

"It's almost done?" With the experience of later generations, Li Chengqian felt that the time was almost done, so he looked at the old Gongshu beside him and asked with a smile.

"The steam is dissipated and you can start!" The old man Gongshu murmured, staring at the huge front of the car intently, and the nervous look on his face was beyond words.

After all, trains are new things in the Tang Dynasty. No matter how high the skills and good the skills of the old man Gongshu are, he is not 100% sure to ensure that this giant steel beast can move. It is understandable that he is nervous.

"Woo..." The thunderous whistle suddenly exploded in the factory, shocking everyone to cover their ears involuntarily. Li Chengqian even cursed angrily.

However, his voice was completely covered up in the loud whistle, and no one knew what he was scolding.

In fact, Gongshulun, who is controlling the front of the vehicle, has no choice. The current steam engine is not a problem. When the steam pressure is too high, it must discharge the steam through the deflation valve, otherwise the front of the vehicle may explode by itself before it moves.

Li Chengqian also understood the truth, but the sudden sound was too loud, making it difficult for him to control his emotions. The saying "Your uncle" is more about expressing emotion, rather than really wanting to curse people.

The steam engines of the Tang Dynasty were still too backward than later generations, and they were much worse in terms of sealing and material. Therefore, if you want to move the front of the car, the process is much more complicated than you imagined.

First of all, the water in the water tank in the steam engine must be boiled, because if the water does not boil, there will be no enough steam and there will be no enough power.

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

If the steam engine is put into use at this time, it is likely that it will suddenly move, and the vehicle will stop due to the sudden discharge of steam and insufficient succession force, which will cause the vehicle to stop, which will even damage the steam engine in serious cases.

Therefore, all the water must be boiled to allow the steam to overflow the entire cylinder. At this time, part of the steam is discharged to keep the pressure in the cylinder in a moderate state. In this state, slowly start the steam engine and use medium pressure to push the cylinder block to slowly move the front of the vehicle. Then, wait until the gas concentration in the cylinder increases again to slowly accelerate the front of the vehicle.

This process must be carried out and must not be careless. Moreover, this is also an experience summarized through some previous accidents.

When the steam engine first appeared, someone tried to start the steam engine immediately after it was filled with steam, but the final result was that the steam pressure was too high, which directly burst the cylinder head, causing a steam engine to be transported back to the Research Office for re-repair.

It is precisely because of this that the Research Department has summarized a lot of experience in the continuous repair of the steam engines sold by the Research Department and applied all of these experiences to this train development.

After a while, the whistle finally stopped, but everyone did not let go of their hands covering their ears. God knows whether the bastard on the train will come again, so it is better to prevent it first.

"Knock, knock... huh..." A series of very familiar voices of Li Chengqian sounded.

"Move, move, move, move, it moves..." As the huge steel wheels moved little by little, everyone in the factory rushed forward two steps, and countless people muttered to themselves with their lips trembling.

Songtsen Gampo stood beside Li Chengqian, watching the huge steel beast slowly moving forward, with an indescribable look, both a little excited and a little sad, in short, it was an indescribable look.

However, Li Chengqian no longer had the intention to care about what he was thinking. From the moment the front of the car started to move, his heart began to be violent and beating, and people could not feel that they began to walk towards the moving front of the car.

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

After all, it was the first trial run of the steamer. No one knew that the steamer would not explode suddenly. For safety reasons, Li Chengqian and the others were actually far away from the front of the car.

But now Li Chengqian has to lean in front in person, which means that the risk will be great, and Yang Yuxin will naturally not let him be like the original one.

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

And in these few conversations, someone has already taken Li Chengqian one step ahead and surpassed him.

The person who walked over was Gongshuhan, the old man of Gongshu. This old guy seemed to be crazy, with his eyes fixed on the front of the car moving slowly forward, muttering about the blessing of his ancestors.

In the huge factory, almost everyone was in a state of silence, and they didn't seem to believe that the slowly moving giant was from their hands.

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 were reality.

It's like buying a lottery. In fact, everyone has fantasized about what would happen if they won the first prize, and what would they do when they were. But in fact, what if they really won the first prize? Our performance was not as expected.

The same is true for these people participating in the locomotive manufacturing of trains. Although they are working hard here, in their subconscious, they do not think that this behemoth can really drag hundreds of thousands of kilograms of goods around, and they are even skeptical whether they can move.

However, now, the facts are in front of you. The steel giant beast is really moving, and its speed is slowly increasing, from the beginning to a level similar to the normal walking speed of a person.
Chapter completed!