Chapter 440

If Marcello has the mind to change the topic in the previous sentence, then the following words are really emotional, so that other people in the cockpit can detect the surprise and exclamation in Marcello's words.

I was stunned for a moment, and immediately felt the situation in the cabin carefully. Indeed, as Marcello said, the noise in the cabin is really not very small.

Because of the limitation of structure and materials, the noise control of ordinary aircraft, especially the small tonnage aircraft such as yun-6, is not very good. The huge engine roar runs through the whole flight.

In fact, let alone small aircraft, these days are large civil aviation airliners, and noise control is not very ideal. It's just because of the large volume, some sound insulation materials can be laid, so that the noise will not be too strong. Even so, passengers near the engine will be told by the engine that they will be worried about the roar and vibration caused by the operation.

But in the cabin of yun-6, the sound from the engine is not absent, but it is controlled in a very small range, just like the sound of the neighbor's bear child's fluctuating spring. Although it can be heard, it is not irritating, and it will not hinder communication.

Even the whispers between each other can be easily heard by the other side, instead of shouting out like other similar planes to achieve the same purpose.

If you listen to the contact between the two Chinese pilots in the front row and the ground, you can see that the tone and tone are very peaceful, just like a face-to-face chat, without half deliberate emphasis.

When other people in the cockpit found out the problem, they looked at each other and were all at a loss, especially the staff of the French and German embassies in China.

It's quiet. What's wrong? Isn't that normal? The noise of our airliners between China and Europe is not always like this. What's the fuss.

In fact, not only the two embassy staff in China, but also Merck lane, who is also a brother in need, looks at Marcello with questioning face. I don't know what the meaning of this good friend who shares weal and woe is. How can the noise of the plane be different? Does it mean something? It seems that I am in a private room. The noise is very loud. Marcelo is not

Somehow, young merklein's face full of Germanic masculinity suddenly appeared a blush.

The two staff members of the Embassy in China are at a loss and ignorance, and Marcello doesn't expect them to know anything from outsiders. Anyway, the purpose of changing the topic has arrived. Later, he said that he was tired and wanted to sleep for a while, and the matter turned over.

However, Merck Lane misunderstood. It's not good to know that in the past three weeks, the two of them have already developed a different feeling beyond friendship by supporting each other and helping each other. For this reason, the two of them once vowed to God the same kind of hegemonic oath that heaven and earth are united but dare to be separated from each other.

Marcelo had to explain this, so he patted merklein's rough hand and said with a smile: "you know, my dear merklein, I once studied aviation engineering at the University of Paris, and later I worked as a technical engineer at Dassault and Airbus. Because of my interest, I left my job and became a foreign correspondent at AFP. ”

he said, pointing to the cabin beside him: "so I know something about the plane very well. Although the cabin noise we are sitting in is similar to that of our long-distance large airliner which travels to and from major cities in the world, you should know that it is a large airliner with a take-off weight of more than 100 tons. The huge platform means that there is great potential for modification, and it can increase the amount of sound insulation materials and materials There are more devices.

It is very difficult for small aircraft to achieve this, because their volume is small and the power of the engine is small. If the sound insulation materials and equipment are added, it is bound to increase the total structure of the aircraft, thus affecting the basic performance of the aircraft. "

Marcelo said it very carefully, but merklein was still a little at a loss, but there was a lot of worship in his gray blue eyes. Marcelo laughed manly and patted merklein's hand again: "just like the car you are familiar with, do you think it's better to refit the truck, or is it easier to add equipment to the exquisite Beetle Car?"

"Bigger trucks, of course." Mercklein's unthinking answer.

"It's the same with airplanes." Marcello nodded with a smile, and then looked around the cabin: "so I'm not surprised by the noise, but by the way this plane achieves this effect. You know, we are flying over the Himalayas, with an average altitude of seven kilometers. That is to say, this plane not only controls the noise to a very low level, but also has to be extremely warm and pressurized Property. It's only a large aircraft. But how big is this aircraft? The estimated take-off weight is no more than 6 tons. "

"Maximum takeoff weight 4.8 tons."

As soon as Marcello's voice fell, a sentence of French with nonstandard pronunciation came from his front defecation, which startled Marcello. As soon as he wanted to say something, he saw janandara turn his head and make a silence action towards Marcello and mercklein. Then he motioned to the side: "it's not polite to forgive people's dreams."Marcelo looked at them and found that the two embassy officials who had been asking them questions had fallen asleep in their seats, one of them was snoring and salivating on his clothes.

As a result, Marcelo had not recovered from the scene before him, so he listened to Gyanendra continue to say: "listen to what you just said, you should know a lot about airplanes. In that case, what do you think of this plateau eagle?"

"Plateau eagle? Good name Marcello lowered his voice, praised him, and then nodded sincerely: "if the maximum take-off weight of this aircraft is 4.8 tons as you said, I think it's a very good aircraft, because the materials and production technology used in this aircraft can be subversive. In addition to the noise and heat preservation and other reasons I just mentioned, the seats in the cabin are very important There are 12 pilots in total, and 14 pilots in chief and vice versa. That is to say, the payload of this aircraft is about 2 tons.

You are coming from the capital of the Tibetan region. Without any supplies, you will take us back to the capital of the Tibetan region. The round trip is nearly 2000 kilometers, so the maximum range of this aircraft must be more than 2000 kilometers. "

Speaking of this, Marcello's dark gray eyes were full of incredible, so that he had to stop to take a deep breath and relax his spirit. Only in this way can he speak again: "this means that the whole body structure is made light, strong and subversive, otherwise it can't reach such an index. At least the similar models I've seen for so many years don't have such excellent ones."