Great Tang princess

Chapter 548 Flight Test Experiment
The airship experiment started, the canvas roof was pulled open, the sunlight gradually shone on the airship, gradually dispelling the shadows covering it.

Seeing this scene, Li Yuechen couldn't help but screamed that there seemed to be similar scenes in many sci-fi movies. The roof was slowly opened, revealing the aircraft inside.

It's a pity that in this era, canvas can only be used as a ceiling, and it will be the same in the future.

The airship is too big. In this era, if you want to build a building like an airplane hangar, it is not worth the candle, and the cost is too high.

Let's wait until someone develops an airplane in the future before considering that stuff.

The sunlight shone on the airship, making it look much brighter, and at the same time, the shock it brought to the surrounding people was much more obvious.

Such a behemoth looks like it has entered the steampunk world, and it seems to add a sense of fantasy.

Just as Li Yuechen was thinking wildly, the flight test officially started. Geng Yunqiang asked a group of soldiers to be in charge of driving, and then selected a group of captives to go up and take turns pedaling.

Among them are the soldiers who are responsible for playing the semaphore, and they must convey the meaning of the craftsmen below at any time.

As the hydrogen filled the airbags, the airship began to slowly leave the ground.

Compared to the first time I saw a hot air balloon take off, everyone present was much calmer and didn't shout, but they were all slightly relieved.

But the airship is not a hot air balloon after all, and being able to fly is only a foundation, the key is whether it can meet the requirements.

The airship's take-off speed was not too fast, and it slowly left the ground and began to rise gradually.

Li Yuechen was sitting next to the test site watching, and a group of children from the royal family surrounded her, discussing the difference between this thing and a hot air balloon.

When the height of the airship reached tens of meters, there was already a commotion outside the barracks.

You don't need to think about it, you know, the nearby villagers must have seen it, and they came over and shouted that the gods would go down to earth, and then they were going to kneel down to pay homage.

But as long as they don't rush into the barracks, they can worship whatever they want. With the popularization of education in the future, this situation will naturally change.

……

After slowly rising to a position of a few hundred meters, while the airship continued to rise, the propellers on both sides also began to rotate, pushing the huge body to move in mid-air.

Although the human pedal is used, the rotation speed of the propeller is actually not too slow because of the structure of a large wheel with a small wheel.

It may not be as fast as the electric speed, but at least it can generate a certain amount of propulsion.

The way to test the distance is also very simple. Fly forward for half an hour, then let the soldiers who have been arranged in advance parachute down, record the straight-line distance between the parachuting site and the take-off site, and then the actual speed can be measured.

Seeing the airship start to move, Geng Yunqiang who stood aside said: "Your Highness, it seems that it was successful, congratulations..."

"Stop milking, wait a while!" Li Yuechen waved his hand to stop what he hadn't finished speaking.

Although he didn't know what she meant when she said don't breastfeed first, Geng Yunqiang still kept his mouth shut obediently, waiting for the follow-up results.

Indeed, if the airship can take off, the experiment is already half successful, but what Li Yuechen wants is the actual speed. If the actual speed measured by then is not as fast as that of Malay, then the experiment is not considered a success in her opinion.

"Auntie, what's the difference between this airship and a hot air balloon?" Li Chengyi was the first to ask.

"Hot air balloons are the same as Kongming lanterns, they use heated air to rise up. This airship uses hydrogen, which is lighter than the air we breathe, so..." Li Yuechen explained to him with his half-baked science knowledge.

In fact, she may still know how to do a lot of things, but explaining them in detail has become a rather troublesome thing.

While looking at the airship that started to move in the sky, he explained the principle to the children. The airship quickly turned into a small black spot in the sky, and then disappeared.

In fact, it is difficult to judge the speed of a flying target with the naked eye. Specifically, we still have to wait for the test results to come out.

……

Half an hour didn't pass too slowly. While chatting and drinking tea, after a few cups of tea, the time almost passed.

When the sun was about to set, the airship reappeared in sight, gradually getting bigger in the air, and then slowly landed in the test field.

Unlike a hot air balloon, an airship can land at a fixed point, just like a helicopter.

Speaking of helicopters, Li Yuechen actually has a little understanding. After all, Red Bull used to hold events and often took helicopters to go skiing in major snow mountains all over the world.

But it is completely impossible to make a helicopter in this era. Not to mention anything else, the level of craftsmanship of the propeller alone cannot be achieved.

The setting sun stretched out the shadows of the playthings on the ground, and the airship also carried a huge shadow slowly descending in the orange light.

The soldiers led a group of prisoners out of the cabin, came to Li Yuechen, and reported the situation to her.

"Your Highness, the experiment was successful, and the skydiving test was carried out just now. It is estimated that the flight will be in the early 94s in half an hour, and the subordinate is estimated to be around [-]..." The soldier reported the data recorded along the way.

Li Yuechen calculated in his head while listening, and it was about fifty kilometers per hour.

If this kind of data can be achieved, it is indeed quite possible.

You know, the airship can carry a large amount of cargo, and if it can reach this level, it will be able to reach a fairly efficient level in the future, whether it is transporting weapons or food to the northeast.

"How about the safety performance, can there be accidents?" Geng Yunqiang asked.

"There have been no accidents, and the flight is very stable. Compared with the hang glider, although it is somewhat difficult to control, overall, it is much better in all aspects..." The soldier replied.

Li Yuechen nodded, then stood up: "Okay, then I will go up and try tomorrow."

Now that the test flight has been successful, Geng Yunqiang didn't stop him, but just said: "Your Highness, please let your subordinates accompany the experiment."

"Okay, got it!"

Geng Yunqiang did this, firstly, for the safety of His Highness, and secondly, as a soldier, he always has a feeling of wanting to try new equipment for himself.

He can't play hang gliding, because after Li Yuechen's test, he found that his eyesight is not good enough, so he was not allowed to participate in flight training, but this airship should be fine.

……

On the second day, Li Yuechen still got up early. After practicing in the morning, he ate lunch and came to the test site, planning to board the airship to see for himself.

Who knew that as soon as she came here, she saw Wang Gangdan and other craftsmen gathered together, looking at her eagerly, as if they had something to say.

"Just say something, don't stare at me like this!" Li Yuechen waved his hand.

"Your Highness, forgive me!" Wang Gang patted his head embarrassingly, "I just ask Your Highness, let me go up and have a look later, so that I can make some improvements in the future..."

Flying has been the dream of human beings since ancient times, and now a group of craftsmen have personally made a behemoth, so naturally they want to experience it in person.

"Isn't this nonsense? If you don't test it yourself, how will you make better ones in the future?" Li Yuechen asked back with a smile.

Of course they wanted to go up, even if they didn't mention it themselves, Li Yuechen would take the initiative to bring it up.

After getting the answer, the craftsmen also burst into cheers, and then stood behind Li Yuechen and waited to enter the cabin with peace of mind.

After making preparations, Li Yuechen, Geng Yunqiang and others entered first, followed by the craftsmen.

Li Yuechen turned his head: "This thing was made by you and others. The overall structure must be more familiar to you. You can move freely anywhere and observe the changes during its flight... At that time, you must pay attention to the records, and also for your own sake." There will be some basics for improvement in the future.”

Wang Gangdan was a little puzzled: "But Your Highness, this has already flown, what improvement should be made?"

Li Yuechen also had a good temper and didn't usually put on airs, so these craftsmen dared to ask a few questions when faced with puzzled orders.

"Satisfied with flying?"

Li Yuechen asked with a smile: "Can't it be made to fly higher and faster? Since you are all top craftsmen in the country, I still need to teach these things?"

"Ah... the subordinates misunderstood..."

As craftsmen, of course they also have enough thirst for knowledge, and hope that their works can be infinitely closer to perfection, but after all, this is an unprecedented work. Although it has been made, many craftsmen are still a little confused.

"Perhaps your generation has been unable to make it significantly upgraded, but you have apprentices and children, and they inherit your knowledge and skills. If you can excel on this basis in the future, it will make it even more powerful... "

Li Yuechen doesn't believe that there are inherently perfect technologies in this world, and all new knowledge is derived from the original knowledge.

Naturally, the same is true in terms of technology. Take painting as an example. The first person in the world who can paint may not even be as good as a child of a few years old.

I have seen some primitive people on TV before, even murals of ancient human beings who can not even be called human beings. They are really stick figures.

Later generations absorbed this level of painting, and then continued to innovate on this basis, in order to do better.

A great man in every industry actually stands on the shoulders of the former in order to raise himself to a higher level.

Li Yuechen asked them to teach their apprentices and children to inherit their skills. If a talented person can be born among them, maybe the overall technical level of the Engineering Academy can be raised to a higher level.

The craftsmen agreed together: "Remember Your Highness's instruction..."

……

The soldiers in the cab and the soldiers outside exchanged flags, and then announced: "Ready to take off!"

The airship slowly left the ground. Li Yuechen took Geng Yunqiang and Wang Wuqiong to stand in front of the window. When the scenery outside began to slowly fall, they turned their heads and looked at each other.

"Your Highness, this airship is very stable. You don't need to rush down from a high place to take off, and you can hardly feel any bumps." Geng Yunqiang praised.

"En." Li Yuechen nodded, and then asked: "What does Wu Qiong think?"

"With this cabin, you don't need to blow the wind. If you want to fly to a high place, you won't feel cold, right?" Wang Wuqiong thought for a while, "It's just that it's too big, and you need a large enough space when you land..."

Li Yuechen nodded slightly: "Indeed, but this thing has great strategic significance. Whether it is carrying people or transporting goods, it can directly increase the military level of our country by a dimension..."

In this regard, Geng Yunqiang, who inherited his father's career and has been a soldier since he was a teenager, is deeply touched.

If we had this kind of equipment in the past, no matter whether it was a breakthrough or a Turkic attack, we could almost completely wipe them out without bloodshed.

……

The various facilities on the airship are also much better than hot air balloons. After a while, Xiao He came over with a cup of tea: "Your Highness, drink some tea and sit down to rest."

While talking, he called Wang Wuqiong to move a chair from the side and put it in front of the window, and then put the teacup on the window sill.

There are tables, chairs and benches here, and even beds will be placed in the cabins to accommodate long-distance flights. It can be said that this airship is completely an ancient version of a mobile castle in the air.

After flying for a short time, Wang Wuqiong suddenly pointed down and said, "Look quickly, Your Highness, you can see Qingzhou City."

Everyone looked down in the direction of her finger, and indeed they could see the square Qingzhou City. Li Yuechen took out the binoculars, and could vaguely see many people in the city kneeling down on the street, facing the sky. kowtow.

After smiling helplessly, Li Yuechen asked about the time, and the answer he got was similar to yesterday's. The speed was about [-] to [-] kilometers per hour, which was considered a very powerful means of transportation.

"Okay, let's go back." Li Yuechen waved his hand, and then said to Wang Gangdan and other craftsmen: "In the next three days, you can experiment and give me a detailed report. I want to know the airship Can you fly to the Eastern Capital, and then go to the northern border..."

"Yes!" The craftsmen immediately agreed.

……

After the airship landed, Li Yuechen walked out of the cabin. In order to feel the sense of accomplishment of making an airship in this era, a group of children rushed over and surrounded her.

"Why didn't my aunt take me up there to have a look?" Li Chongrun asked with an aggrieved expression.

"That's right, my aunt is biased!" Li Xianhui also looked unhappy, and the other children had almost the same attitude.

After all, they are only six or seven years old, and they put all the thoughts in their hearts on their faces, and they almost didn't cry.

Li Yuechen coaxed a few words helplessly, and then said: "Well, summer vacation is coming soon, how about the palace taking you to the northern border in a few days?"

As soon as the children heard that they could go to other places to play, they all forgot the grievances of today, and began to ask what fun things to do in the north.

That place is full of grasslands and primeval forests, so there is nothing interesting about it. This is just Li Yuechen's way of coaxing them. Letting them see the mountains and rivers of their homeland and feel the different customs and customs can be regarded as gaining some experience.

And the course for the second half of the year will be held there, let them have a good experience of what winter in the Northeast is like...

Be sure to bring warm clothes...

　It's past twelve o'clock, this chapter is yesterday's, and there will be another chapter in a while.

　　
　
(End of this chapter)