Song Yingxing actually came over to deliver hot air balloons, after Zhu Cijiong proposed the idea of hot air balloons last time, he began to actively develop them, but hot air balloons are such a seemingly simple thing, but there are many difficulties.

For example, the sealing, with ordinary cloth is definitely not good, the oil paper is easy to break after pasting, he experimented many times, and finally came up with a kind of oil cloth similar to oil paper to solve the problem.

Another example is the problem of filling air into it, the Kong Ming lantern is originally supported by a bamboo frame, and it is already filled with air, as long as it is heated; The hot air balloon is a soft cloth bag, and you have to fill it with air to blow it up, which is more troublesome because the hot air balloon is too large and the air to be poured into it is not a little.

This problem made him miserable, he tried for more than ten days but couldn't find a good way, and in the end, he had to consult Zhu Cijiong before he found a way to pour air into it.

Zhu Cijiong thought of a way for him to make a long fan, and then take a bell mouth to blow wind into the hot air balloon.

This is also the reason why he wants to connect the wires, he must use a fan to blow up the hot air balloon, if you let people blow it, blowing a balloon with a basin is the limit, and a hot air balloon as big as a house can't blow it up.

Song Yingxing brought a little too many things this time, just a hot air balloon is not something that a few people can hold, plus fans, horns, large kerosene lamps and other things, he had to pull the whole large flat carriage over.

In the amazed eyes of everyone, he first ordered the six brocade guards to carry a pile of cloth larger than a quilt and slowly spread it out in front of the battle, then ordered the two brocade guards to carry down the fan, horn tube, large kerosene lamp and other things and put them on the ground, and finally, he ordered the two brocade guards to carry a huge iron nail half a person high and knock it into the ground!

His juggling operation attracted the attention of most of the generals, and the tanks rumbling in the distance did not seem to be as magical as what he had made.

Lu Xiangsheng finally couldn't help but ask, "Lord Song, what are you doing here?" “

Song Yingxing was still afraid that people would not understand, so he did not use the name of the hot air balloon, but opened his hands to describe it: "Put a king-sized Kong Ming lantern for you." “

Kong Ming Lantern Lu Xiangsheng knows, the question is what does it mean to put a Kong Ming lantern?

He asked puzzledly, "Why do you put a Kong Ming lantern?" “

Song Yingxing said proudly: "Sit on people, take people to the sky." “

When Lu Xiangsheng heard this, he couldn't help but look up at the sky, and then looked down at the hot air balloon that was spread on the ground and had not yet blown up, such a big one, it is possible to bring people to the sky, the question is why to bring people to the sky, what to do if they blow away, what to do if they can't get down, don't you want human life!

Thinking of this, he couldn't help but worry: "Lord Song, what if you can't come back after taking people to the sky?" “

He was also worried about this problem, and now that he thinks about it, it's really a bit ridiculous, just at this time, the brocade clothes who carried things and nails were completed, and he directly pointed to the hemp rope and bamboo basket on the car and said: "Bring the hemp rope and bamboo basket over." “

Song Yingxing instructed them to tie one end of the hemp rope to the bottom of the bamboo basket, and then pointed to the iron nail on the ground and said, "Marshal Lu, it's okay to tie the frame of the sitting person to the nail." “

Lu Xiangsheng understood at a glance that it was impossible for Kong Ming Lantern to pull out a half-human-long nail from the ground, so it would be okay for a person to fly into the sky, it would be a big deal to climb down the rope, but the question was, what is the use of bringing people to the sky?

He was also confused by Song Yingxing's bunch of new gadgets at this time, and he didn't connect this thing with the war at all.

He was still a little puzzled and asked, "Lord Song, what are you doing sending people to the sky, do you want to do any experiments?" “

He had heard that this Lord Song was a research maniac and loved to do experiments, and at this time he thought that Song Yingxing wanted them to help do some kind of experiment.

Unexpectedly, Song Yingxing shook his head and said: "It's not that I want to do any experiments, it's the emperor who asked me to send this to you, and the emperor said, there is a flag bearer here, and after sending it to the sky, you can use a telescope to see the situation in the fortress, and then you can locate the cannonballs through the flag." “

When Lu Xiangsheng heard this, he immediately realized that it was true that they couldn't see the situation in the fortress clearly now because their current position was lower than the fortress, and they were going to stand higher than the fortress, so they couldn't see the situation clearly!

Good thing, he immediately asked excitedly: "Can the height of this Kong Ming lantern be adjusted?" “

Song Yingxing said confidently: "Of course, Master Lu, how high do you estimate the fortress in front of you?" “

When Lu Xiangsheng heard this, he immediately looked at the fortress with a telescope, he roughly estimated it, and then guessed: "About thirty or forty zhang high." “

Song Yingxing immediately bent down, looked for a while in the pile of thick hemp rope coiled in a circle, and then said to the Jinyi guard next to him: "This is a mark of fifty zhang, tie it directly from here, and the Kong Ming lantern can only rise fifty zhang high." “

When the brocade guard next to him heard this, he immediately took the thick hemp rope over, tied a swirl knot at the marked position, and directly put a set of iron nails, and then took a thin hemp rope to firmly fix the thick hemp rope on the iron nails.

When Lu Xiangsheng saw this operation, he immediately understood, it was really simple, why didn't he think of it.

At this moment, the guards who had begun to run towards the fortress had already pulled over the wires with a few people, two in all, one red and one black.

Song Yingxing took the wire, skillfully poked the red one into a small hole behind the electric fan, and then said to the guard: "Let them be energized." “

Then, he commanded a few brocade guards, put the horn tube in front of the fan, and then pulled the hot air balloon over, and put the mouth of the hot air balloon directly on the bell mouth, and the mouth of the hot air balloon also has an iron hoop, the size is exactly the same as the size in front of the bell mouth, and it is just right to put it on.

At this time, Song Yingxing directly inserted the black wire into another small hole behind the fan, and with a "buzz", the fan spun rapidly.

That's not all, he asked people to hold on to the fans and horns, and he brought the kerosene lamp over, opened the lid, and took out the flint and lit it.

The kerosene lamp was not a glass kerosene lamp, but an iron one, the size of a bucket underneath, and the structure on top was similar to that of a windproof lighter, but the wick was arm-thick.

After lighting the kerosene lamp, he directly moved the kerosene lamp behind the fan, and the huge flame was immediately sucked into the fan, and the flame was also magical, it looked like a candle in the wind, but it was not extinguished!

After doing all this, Song Yingxing stood there quietly, looking at the slowly bulging hot air balloon, his eyes were full of fanaticism.

This is also the first time he has sent people to the sky, and he has done several experiments before, but the hot air balloons are not so big, and the largest one can be hung in a bamboo basket.

What a miraculous thing it is to send people to heaven, and he is about to do it now!