Although Li Jiang complained about the model he was driving, if others said so, this guy would be able to spray you in the face with a turn of face, and the typical goods that only allowed the state officials to set fires and did not allow the people to light the lights.

This is also the inquiry of the ground air traffic control, if it were someone else, Li Jiang estimated that he would have scolded his mother a long time ago, and he had never even driven this helicopter, so he dared to say that there was something wrong with this thing, and he simply played the piano randomly.

But even so, Li Jiang's tone to the ground air traffic control just now was not polite, but it didn't matter, since he dared to fly this alternative helicopter to appear over Sin Continent, he naturally made all the preparations, otherwise, even if he agreed, the domestic aircraft management department would not allow it.

After all, if a flying machine falls from the sky, it is easy to cause secondary accidents, especially in cities, in case of killing and injuring other people, the nature of the matter is great.

Because of this, after receiving the request of Tengfei Group, the Civil Aviation Association and the relevant departments of the Air Force formed a joint expert group to come to the general aviation company under Tengfei Group, and made a comprehensive technical assessment and safety evaluation of several types of aircraft equipped with it, so it was prudently agreed that Tengfei general aviation models can fly in Sin Chew City.

In other words, the helicopter piloted by Li Jiang did not break in rashly, and there was an approval document on the person.

......

"You said that the Civil Aviation Administration and the relevant departments of the Air Force have made an assessment, and there is no problem?"

Just when Li Jiang was constantly looking for the shooting angle according to Ju Tao's request, in the compound of the family members of the cadres in Sin Chew, the leader who asked the staff to inquire about how the helicopter in the sky that made people were shocked to look at it also received a reply, and his brows couldn't help frowning, saying in his heart why he didn't know about this.

At this time, the reporting staff replied: "Last week, there were indeed several evaluation reports forwarded by the Civil Aviation Administration to you for review. ”

"Really?"

Hearing this, the local leader of Xingzhou frowned, obviously not remembering.

"It is true that there is such a thing, I have some impressions, at that time we also mentioned it at the team meeting, but first, we mainly focused on the Yonghong factory, and secondly, the aviation matter was weighed by the experts of the Civil Aviation Administration, so we didn't have to worry about it, so we hurriedly revealed it. ”

At this time, another leader of Xingzhou finally thought about it, and after hearing this, the leader who asked people to inquire just now recalled it in a daze.

It's not the same as what the comrades in front of me said, not to mention last week, that is, in the past half a year, their local leadership team in Xingzhou has not done anything, and they have been busy working around the affairs of Yonghong Factory, so that other things are listed as secondary, as long as there are no major problems, they will all be over.

The same is true of the technical and safety assessment report submitted by the Civil Aviation Administration of China on the flight of various models of general aviation over the urban area of Sin Chew, because there are aviation technical experts and their local leaders have not looked too closely, of course, even if they look closely, they can't understand it, because this report has more than 2,000 pages, and more than 80% of them are dizzying technical terms and sophisticated icons.

Because of this, even if there is no Yonghong Factory involved, these management cadres who are engaged in local governance will not make any stumbling blocks in this regard.

Merely......

"We approved it, but who knew that Tengfei Aviation flew over this kind of thing, you see, the two propellers rotate side by side, and they are not afraid of really twisting together?"

Although the leader who asked knew that the plane in the sky was approved, he was still dissatisfied with the question, and the leader next to him who reminded him didn't know when to say it, and looked at the helicopter in the sky that was circling left and right in the air, not knowing what it was doing, also frowned, and was just about to say something innocuous to express the unity of their leadership team.

But before he could speak, he saw Yodel, who was staring at the sky in front of him, suddenly slapped his head with a slap, and then shouted excitedly: "I know, Gu, it's Kaman, Kaman of the United States, the twin rotors are horizontally crossed, the two sets of propellers are arranged in a V-shape, and the gears in the transmission structure are optimized, so that the two propellers can be parallel, and the K-600 general helicopter equipped in the United States in the 50s is this structure, God, I didn't expect you to introduce American technology." ”

Coming to this conclusion, Yodel had nothing on his face, but he was very shocked in his heart, this kind of dual-rotor transverse cross arrangement helicopter is the only one in the world that the American Kaman Space Company is persevering in research.

The reason for this is simple: this type of layout can greatly simplify the complex transmission mechanism of the helicopter, reduce the weight of the fuselage, and thus increase the carrying capacity of the helicopter.

Regardless of the rest, take the K-600 general-purpose helicopter equipped by the US military in the 50s, for example, it is only 1.8 tons in the air, but the maximum take-off weight is 3 tons.

Its carrying capacity reaches 1.2 tons, which is not a small number, but this weight is close to 70% of the weight of the aircraft itself.

It can carry 70% of its own weight of the item, just in terms of this data, even the current aircraft are difficult to achieve, but the use of twin-rotor transverse cross arrangement of the K-600 general helicopter has been done in the 50s, you must know that there were no composite materials at that time, there was no CNC machine tool and no other advanced manufacturing technology, why?

It's not as weird as it seems, but it's actually a clever layout that makes the impossible possible.

Because the reverse rotation of the twin propellers in this layout counteracts the reverse unbalanced force, so that the tail rotor and complex transmission can be removed, so that the entire speed reducer can be made lighter and smaller, and the internal mechanism is also greatly simplified, coupled with other optimizations, the whole helicopter can be made compact and lightweight, so as to create a large proportion of the carrying capacity of this type of aircraft.

It's just that what Yodel didn't expect was that this kind of technology that has unique features in helicopter weight reduction was actually transferred to China by the Americans, which made Yodel both envious and jealous, and kept wailing in his heart, why don't you transfer it to our German Leipzig company!

Also shocked was the local leader of Sin Continent, who was constantly questioning, one moment he said that the plane above would not fall down with two sets of propellers, and the next second he sent the interpreter to know what Yodel said.

All of a sudden, the entire local leadership team of Xingzhou was stunned.

What's going on?

Let's just say that this plane is so different, it turns out to be American technology, then there is no problem, the United States dares to say that it is the first in the world, who dares to say that it is the second?

If it weren't for this, the two sets of propellers would have fought a long time ago, since it is American technology, then rest assured, it seems that it is still very good to take off and navigate, and it is great to be able to bring American technology over.

As a result, a discourse about how advanced the United States is and how it is bull~~ spread among several leaders.

Gu Jingyou looked at the somewhat sad Yodel next to him, and then turned his head to look at the leaders of Xingzhou who praised American technology, raised his eyebrows, and finally fixed his eyes on Yodel, and said with a strange expression: "American technology? Mr. Yodle, is your conclusion too superficial? The ZB-MAX helicopter in the sky is all self-developed products of our Tengfei Group, and if there is one of the core accessories other than avionics, if there is an American one, I Gu Jingyou's head will be taken off and let you kick it as a ball." ”