Sometimes Tang Ming always had such an impulse, he wanted to tell Zheng He that if he still wanted to go on a long voyage, it would be better to use a hot air balloon. Pen Fun Pavilion www.biquge.info if today's test of this super-large spacecraft hot air balloon is successful, he thinks it will be much more practical and safer than sailing out to sea!

According to the cost of this hot air balloon and treasure ship, a treasure ship can build fifty such hot air balloons, although the cargo transported may not be as large as the treasure ship, but it is fast and convenient. Moreover, Zheng He's voyage was not originally focused on trade, which could only be said to be carried, and cultural exchange was his primary purpose.

If possible, Tang Ming felt that it was not impossible to get five hundred large hot air balloons and let Zheng He travel around the world, if not enough, then a thousand. Just want to supply so many hot air balloons for continuous sailing, then this fierce fire oil is the biggest problem.

Without enough fuel, this hot air balloon will not be able to fly, and in Daming or where there are humans, fierce fire oil may be able to replenish it. However, once you arrive in a deserted place, if you are not well prepared, you are likely to run out of fuel and stagnate.

Shaking his head, Tang Ming shook off these strange thoughts in his mind and focused on the things in front of him, Xiao Shu had already led people to start installing the hot air balloon, and it was almost finished. As he expected, the test flight could be carried out before dinner.

Some of the students who had been idle began to gather in front of the hot air balloon that looked like the spaceship, talking in a low voice. They really didn't see the use of this thing, because the large wooden box in the shape of a ship was almost completely enclosed, so it was not suitable for combat, and there was no iron sheet on it, and the defense was even worse.

As if to reduce the weight of the boat-shaped wooden box, the plank was only a finger thick, and it was estimated that at an altitude of five hundred meters, it could easily be pierced by an ordinary flintlock pistol.

Xiao Shu seriously did a final comprehensive inspection, and only after making sure that everything was normal did he come to Tang Ming: "Sir, everything is ready, do you want to start the test flight now?" ”

Tang Ming was eating with a big bowl, and when he heard that he threw the bowl away, he walked towards the spaceship, and said: "Test flight immediately, let all the people on the ship wear warm coats, this time you have to rise to at least a thousand meters in the air, and those who are afraid of heights should not participate." ”

"A thousand meters high?"

Xiao Shu was taken aback, and immediately took two steps forward to stop Tang Ming, who was about to get on the boat, and said urgently: "Don't sir, this hot air balloon is difficult to control at an altitude of five hundred meters, if it reaches an altitude of one thousand meters, something unexpected may happen, no matter what, you can't get into danger again." ”

When an ordinary hot air balloon is at an altitude of 500 meters, the influence of the air flow is very great, and sometimes it is really hard to drive against the wind. Moreover, the current hot air balloon has only reached the highest record of 800 meters, and if you go up, it will completely lose control, and it will easily explode in addition to drifting with the wind.

After all, due to the limitations of materials, the cloth used to sew the balloons cannot withstand too much heat, and if the flamethrower is turned on too much, it is easy to have accidents.

Although Tang Ming's new huge hot air balloon is equivalent to three ordinary balloons merging together, its lift should also be three times that of a single one. In addition, only two flamethrowers are now used, which greatly reduces the risk of excessive heat, and there should be no danger of explosion.

But he hasn't really tried it, who knows what will happen later, before the situation is clear, Tang Ming will personally take risks, saying that Xiao vulgar will not allow such a thing to happen.

Tang Ming hesitated for a moment, then looked at Xiao Shu's serious face, and finally could only compromise. He watched from the ground, and Xiao Shu personally led people to try.

The two large furnaces quickly ignited flames, and the oversized spaceship slowly rose into the air under the gaze of Tang Ming and many students.

100 meters, 200 meters, 300 meters...... Until the 600 meters, the balloon was still very stable. And it didn't start to be a little difficult to control like a normal first-generation hot air balloon. But the ship stopped ascending at this point, and stayed for a long time before continuing upward.

At eight hundred meters, the naked eye could no longer see very clearly, and Tang Ming immediately used a telescope to look at it. Xiao Shu seemed to be out of the way, desperate to quickly increase the altitude, and when the spacecraft stopped rising again, Tang Ming didn't know what altitude it was.

Judging from the visual size ratio, it is estimated that it is only a lot more. After a short pause, the balloon soon began to spin with two huge propellers used as thrusters. The spaceship also began to move forward slowly, so far Tang Ming had not found anything wrong, and the performance of the spaceship was perfect.

Seeing this, Tang Ming's face gradually showed a smug look, there was no doubt that the test flight of the spacecraft had been successful. As long as he perfects the details tomorrow, he can use this spaceship to take the three old guys and go to see the Ming Dynasty's capital relocation ceremony and military parade in the open.

Xiao Shu didn't fly in the sky for too long, but just circled around Tianna Mountain and returned to the ground. Tang Ming couldn't wait to get on the spaceship, and rushed directly to the upper level to see the effect.

Xiao Shi's face was full of excitement, and when he saw Tang Ming coming, he laughed and said, "Sir, this spaceship is many times better than an ordinary hot air balloon!" It was still easy to climb with fifty people like this, and it was still stable when it had just risen to 1,200 meters. The only drawback is that it is too difficult to move forward in the air, and it seems that this transmission needs to be changed again. ”

As Xiao said in the past, Tang Ming also saw the twelve big men who were responsible for stepping on the propellers, and they were still panting for breath at the moment. Nodding Tang Ming said with a smile: "Well, this problem is not big, and if you add two or three stepping devices, it is currently four people stepping on it at the same time, and it will be almost the same if you add eight people." ”

After inspecting it around, Tang Ming also asked Xiao Shu if there were any other problems, and Xiao Shu's answer was very simple, they were just some small problems, and they could be improved slightly. If you want to go on a long voyage, you still need to test it more, after all, this thing has just been made.

Tang Ming didn't say anything, he believed that Xiao Shu could solve everything well, and leave the matter to him with confidence, Tang Ming went back to the Tang Mansion directly in a hot air balloon.

Zheng He and the two elders were at the foot of the mountain of the academy, and the three of them were chatting in the pavilion, when they saw Tang Ming hurrying over with a happy face. Fang Xiaoru glanced at him, opened his mouth and said: "I said that why is the moonlight so good tonight, the autumn is very pleasant, it turns out that the old man's son-in-law has something good?" (To be continued.) )