The fire outlet of the roaster is inside, and this one is directly exposed to the outside. There is an open fuel inlet at the bottom. As long as coal is added, huge heat can be generated.
After the blacksmith left, Su Chen was not idle and walked quickly to the warehouse.
After ordering people to search for a while, the king finally found two large rolls of Huohuan cloth and ordered a dozen people to carry them to the backyard!
Everything is ready, and Su Chen's first step of the plan is now complete.
Although the purpose is to outwit the Japanese country, it must first be deterred by force. Only in this way can the progress be fast enough!
However, the objective conditions of the "six hundred elites" were limited, and they obviously did not have the power of the Tang Dynasty's cavalry.
But this is not a problem for Su Chen.
If the combat effectiveness is not enough, then use technology to make up for it!
Fire-proof cloth is the earliest fire-proof cloth in Chinese history.
As early as the pre-Qin period, this material has been officially recorded.
If the clothes made of fire cloth are stained, they only need to be burned in the fire to make them white as new.
To the ancients, this was something quite magical.
In fact, this thing is the ancient name of asbestos cloth, a cloth woven from asbestos fibers.
By the time of the Tang Dynasty, it had already appeared on a large scale.
Many granaries use it to protect grain, so it's not difficult to get.
Huohuan cloth is very malleable and can be made into clothing like ordinary cloth...
Su Chen took this thing and paired it with a high-temperature stove. The purpose was obvious. He was going to build a new gadget!
That is, a hot air balloon!
Of course, what he wants to build is the most basic one. He cannot freely control the lifting and lowering, but can only simply control the direction.
Through high temperature, the ball made of fire cloth is inflated. After heating on the ground, it can slowly rise into the air.
When you want to land, turn off the fire and wait for the temperature to drop and it will slowly fall.
Although this method is a bit crude, it is low cost, easy to manufacture, and highly safe.
Su Chen can produce hydrogen and petroleum fuels, but the price-performance ratio is not as good as burning fire.
Due to time constraints, Su Chen didn't have time to do more research, as long as it worked.
According to Su Chen's calculations, the hot air balloon produced in this way should be able to lift up to about two hundred feet, which translates to more than five hundred meters. It is not high, but it is enough!
Because the bows and arrows of the Japanese country during this period did not even have a distance of 200 meters...
Su Chen planned to improve the red cannon's shells, extend the fuse, and then use fifty hot air balloons to form an air force square to arrange a set of indiscriminate bombings for the Japanese country!
Defeat them first, and then implement the follow-up plan.
This is the new plan Su Chen made overnight!
If it weren't for the fact that there was a sea between them and the Japanese country, he even wanted to transport a dozen cannons there and bombard them.
But when I think about the weight of the red cannon, I can only give up with regret.
But with a hot air balloon, it can almost have the same effect.
Four or five people were placed on each balloon, one was responsible for looking after the fire, and the others were responsible for lighting the cannonballs and throwing them down.
Su Chen didn't believe it. The Japanese country's level of national power could withstand the bombing of his balloon soldiers!
With their fighting mode of slashing back and forth with wooden knives, how could they be scared out of their wits when encountering such a terrifying weapon?
After ten days of busy work, the parts of the hot air balloon have been manufactured.
A total of fifty-one hot air balloons have been placed on the flat ground behind the mountain.
Su Chen is directing the villagers to carry out the final assembly.
The people watching wanted to know what this strange thing was for.
Although Su Chen often came up with some new gadgets before, this was the first time they had seen something with such a weird shape.
Su Chen turned around and asked the "Six Hundred Elites" who were standing neatly in several rows: "Are any of you afraid of heights?"
To be precise, it should be called "Five Hundred Elites" now.
Because those who were too old and had too many bodies had been sent back by Su Chen, and now only the five hundred people in front of him were left.
Seeing that no one spoke, Su Chen continued: "In that case, you, you, and you, you three come here."
Su Chen randomly ordered three people and let them enter the basket of the hot air balloon.
"Let me tell you in advance, this thing will take you to the sky in a while."
"Don't panic. After you lift off, you can keep filling the furnace with charcoal and let me see how high it can fly."
How high can it fly?!
After he finished speaking, the three people were so frightened that they almost fell ill!
Want to get them to the sky?
The three of them turned pale and horrified!
Seeing this, Su Chen said warmly: "Don't panic, just think of this thing as a large Kongming Lantern."
"After you get to the sky, you don't have to do anything. When you can no longer rise, just turn off the stove, and you will slowly fall down."
"Don't worry, nothing will happen."
After some persuasion, the three of them gritted their teeth, walked to the basket, and started operating according to Su Chen's instructions.
After igniting the fire, the fire cloth was quickly filled into a ball shape by the hot air.
Su Chen went to take a closer look and nodded silently in his heart.
At present, it seems that there should be no problem.
After a while, several exclamations were heard.
The hot air balloon rose swayingly in everyone's shocked eyes!
At first, the three people were scared to death, but they calmed down after a while.
The hot air balloon didn't rise very fast, and it only took the time to cover the tea to reach about a hundred feet above the ground.
Although the crowd below has become much smaller, you can still see it clearly.
After a while, the hot air balloon stopped about 180 feet above the ground.
Even if the flames in the furnace continued to emit high temperatures, the hot air balloon could not continue to rise.
Seeing this scene, Su Chen nodded with satisfaction.
As expected, the height is similar to what he predicted, and the stability is pretty good. Overall, I am very satisfied.
Half an hour later, the hot air balloon landed smoothly.
It was slightly different from before going up. The expressions on the faces of the three selected people had changed from fear to excitement!
This is flying around in the sky!
Looking at the entire Tang Dynasty, they can be regarded as the first people!
For a moment, their eyes looked at Su Chen with special respect.
Now they finally knew why His Majesty valued this young man so highly.
This is simply a god!
At this time, the people in Sujiazhuang also gathered around and started shouting.
"Master, can you let me try too?"
"Master, I also want to fly around!"
"Master, do you want to test these other things?"
…
Everyone wants to experience what it feels like to be in heaven.
"Go for it!"
Su Chen waved his hand, and everyone happily entered the hot air balloon.
