"There you have it, at the southeast point of Mount Everest...... About 7500 meters!"

Since they came out this time to rescue Dr. Zhang, Yan Bin contacted the camp base of the rescue team early in the morning.

Nima, so high!

The audience couldn't imagine that Xu Ye needed to fly to such a high position for the first time.

And judging from the hesitation of Yan Bin's words, it is so high, and the control of his pilot is also extremely demanding.

After all, flying over Mount Everest and hovering on Mount Everest to save people is not a concept!

Anyone who knows a little about aviation knows that the most difficult point of flying a helicopter is not how far and high it flies, but hovering and controlling!

Especially when hovering, a slight strong wind will have an impact on the stability of the fuselage, and high mountains are most likely to generate strong winds.

"7500 meters...... If only it were that high, it would be great!"

As soon as Chen Xu heard the coordinate point, he immediately breathed a sigh of relief in his heart.

In this regard, the audience expressed their incomprehension, why such a high rescue position, Xu Ye would even say yes?

Could it be that Xu Ye is shaking M?

The task is not difficult and uncomfortable?

Looking at the many puzzled barrages on the screen, he explained with a smile: "This height is indeed a big obstacle for us to rescue the emergency, but it is not necessarily a good thing for the affected people." ”

"Anyone who has ever climbed a mountain or skydived will know that when the altitude exceeds 7,000 meters, it is called a death zone, because the oxygen content there is only about a quarter of that at sea level, and even professionally trained people must wear oxygen cylinders to survive. ”

"Therefore, this Dr. Zhang and his team members should have been wearing oxygen cylinders when the avalanche occurred, you must know that there are two main fatal factors for the outbreak of snow disasters, one is low-temperature frostbite, and the other is hypoxic suffocation. ”

"Since they have oxygen cylinders to feed, there should not be a big danger to their lives in a short period of time, but in an extremely cold and oxygen-deficient area like the Death Zone, it is almost impossible for humans to survive for more than 48 hours, so, Yan Bin, we have to speed up the time!"

"Okay! Team Chen!"

Yan Bin replied very simply.

If it was said that the name "Team Chen" was due to Li Qing's order, then now this "Team Chen" truly recognizes Chen Xu's command identity.

After all, several people don't know much about Chen Xu, and with such a young age, it is normal to feel a little unconvinced.

But along the way, I listened to these analyses from him.

Yan Bin and the three of them began to change their impression of Chen Xu.

Although the fragments of knowledge such as high altitude, oxygen content, oxygen cylinders, and snow disasters are not very difficult to remember, it is not easy to integrate them and connect them to form the conditions for crisis management.

This not only requires a solid memory of the outdoor knowledge of the snow-capped mountains, but also requires a careful and crisis survival concept.

And the audience in the live broadcast room, after listening to Chen Xu's explanation, also learned a lot.

Some people also remember that when Xu Ye was parachuting live on the Matterhorn in the Alps before, he was inhaling oxygen, and the altitude of the plane at that time was about 7,000 meters!

Minutes and seconds passed.

The helicopter rises higher and higher.

And the four of them also began to take out four small oxygen cylinders from the first aid equipment in the back in front of the audience, tied them to their waists with the fixing straps of safety suits, and then inserted transparent breathing tubes into their nostrils.

The scene outside has long since turned into a snowy world.

The glacier of Mount Everest is like a proud sword, reaching straight into the sky.

Occasionally, the audience will see that the bottom of the mountain is already a vast green, and even such a huge mountain still seems a little small in the picture.

Just because, now the altitude is 7200 meters!

While Chen Xu explained to the audience, he still did not forget to turn his head and look at the surrounding environment.

Until he saw the clouds around the peak, his brow frowned slightly.

After thinking for about five or six seconds, he turned his head and said to Yan Bin: "Yan Bin, from now on, add ten percent more points to the fuel you calculated and reserved!"

"This ......"

When Yan Bin heard this, he was suddenly a little confused.

As a professional pilot, especially flying at high altitudes, you have to constantly calculate the altitude, the weight of the vehicle, the weight of the personnel, and the level of fuel consumption.

Only then will he be able to estimate how many people will be able to accommodate and make a safe return.

Yan Bin had already counted these things almost as well.

But who would have thought that now Chen Xu suddenly interjected like this, disrupting his plan, you know, ten percent of the fuel volume is not a decimal, that can almost carry one more disaster victim!

So, Chen Xu pointed to the clouds on the top of Mount Everest outside the window and said, "Do you see those thin clouds floating along the top of the mountain?"

"Qiyun?"

After Yan Bin glanced at it, he immediately let out a surprise in surprise.

"That's right, the flag cloud, one of the markers for judging the wind strength of the upper part of the Everest glacier, is formed by convective cumulus clouds, and the wind strength of the upper section of the glacier can be judged according to the position and height of its fluttering. ”

Chen Xu opened his mouth to explain: "I know that you should calculate the wind power of Qiyun, the upward wind is small, the downward pressure wind is strong, and now it is basically the same as Mount Everest, which means that the wind force is about level 9." ”

"That's right, I'm level 9. ”

Yan Bin nodded while secretly admiring Chen Xu in his heart.

As a pilot, he was already sensitive to high-altitude weather, but he didn't expect Chen Xu to be able to spot Qiyun so quickly and calculate it so accurately.

"But you're ignoring the direction!"

Chen Xu shook his head slightly, "Usually the upper section of Mount Everest blows a strong westerly wind, so the direction of the flag cloud should be east, but the flag cloud in front of me has begun to shift to the northeast, which means that there is a strong unstable airflow interfering with it!"

"If my guess is correct, within an hour, I am afraid that there will be heavy snow or extreme weather, so you should plan ahead and reserve fuel for extreme weather!"

After Yan Bin heard this, his eyes blinked twice, obviously shocked.

And the two first aid soldiers behind him, Liu Yan and Sun Yue, couldn't help but think of what Team Leader Zheng Yuan said to them before leaving: "Listen to Chen Xu more in everything, this kid has a strong sensitivity and insight into the weather changes in the wild, and last time in Shenshi Bay, he was the first to discover the waterspout." ”

Now it seems that the real Nyima is right!

I didn't expect that we really have such an awesome outdoor survival and rescue expert in Huaxia!

Subsequently, Yan Bin kept comparing the dynamics of Qiyun, and compared it with the changes in the high-altitude weather recorded in the book, he calculated for four or five seconds before he reacted, and hurriedly exclaimed: "Team Chen! Thank you! I know!"