Chapter 277 Skydiving
"Line up, don't be in a hurry, get on one by one, the first row gets on plane number one, the second row gets on plane number two," Li Xingyun said loudly as he stood in the middle of several Y-5 transport planes.

Fang Kai stood beside him.

Take the roster.

Put a '√' on each one.

When it was Jiang Chen's turn, the first three planes were already full.

He was the first to board Unit 4.

And Chen Xuanxuan is the last one.

Inside the cabin.

A skydiving instructor stood hunched over at the hatch.

Every time a trainee boarded the plane, he would lend a hand.

Wait until Chen Xuanxuan got on the plane.

He turned around when he saw that there was no one behind Chen Xuanxuan.

He shouted to the dozen or so students who were already sitting in the cabin, "Everyone, please sit down, no loud noises, and follow instructions."

The instructions are over.

Then he pulled up the intercom and said to the crew in the cockpit, "The trainees have boarded the plane. Should we close the cabin door?"

"Zizi. You can close the hatch."

When the instructor heard the voice on the intercom, he reached out and pulled the cabin door.

Pull it in hard.

Click!

The hatch was closed.

The cabin suddenly became much darker.

Another few minutes passed.

The roar of the plane's propellers was heard outside the cabin.

This is an aircraft that has started its engine.

Then the second, the third, the fourth
These four Y-5 transport aircraft are like four soldiers who strictly abide by discipline.

Four people form a row.

Slowly drove onto the runway from the apron.

Several planes stayed on the runway for another minute or two.

After receiving instructions from the tower.

The first Y-5 transport plane began to taxi and moved slowly.

The speed is getting faster and faster.

After gliding for a few hundred meters, it raised its head and flew into the sky like an eagle spreading its wings.

The second plane followed closely behind.

Then came the third one.

After the third Y-5 transport plane had successfully taken off, the fourth Y-5 transport plane began to taxi slowly.

Inside the cabin.

There was no other sound except the sound of the engine.

As the plane slowly glided, the fuselage began to tremble.

Sitting on a plane is like sitting in the bed of a tractor.

The aircraft's high-performance fuel is continuously supplied.

The turboprop engine at the nose of the plane was running at high speed.

Boom boom boom~~~Boom boom boom

The three-blade propeller rotates from slow to fast.

A huge roar echoed all around, filling the entire cabin.

Inside the cockpit.

A flight academy instructor sat in the captain's seat and flew the plane himself.

The other two senior students sat in the co-pilot seat and the back seat, frantically completing various instructions issued by the "captain".

The captain was seen holding the operating lever with one hand and gently pushing the throttle valve lever with the other hand to continuously supply fuel to the aircraft.

When the airspeed indicator needle points to v1.
The senior student in the passenger seat quickly said, "V1."

"Lift, lift the wheel."

The captain heard this.

Immediately pull the lever upward and back gently.

The nose of the Y-5 transport aircraft was immediately pulled up, and it climbed at a small angle.

Not a moment later.

The Y-5 transport plane had already climbed to the designated airspace and then flew towards the parachute base more than kilometers away.

There are safety altitude restrictions when skydiving.

Neither too high nor too low is good.

There are two absolute limits for skydiving safety altitude: minimum and maximum.

They are called the maximum safe altitude and the minimum safe altitude. Generally speaking, the maximum safe altitude is based on the limit of the atmospheric pressure that the human body can withstand.

Because the higher the altitude, the thinner the air, the lower the air pressure, and the lower the temperature, which the human body cannot tolerate.

So in general, the industry believes that the highest safe altitude is around five thousand meters.

However, this only refers to the safe height without protective gear.

If you wear oxygen equipment, cold-proof clothing, and use more professional skydiving equipment, you can challenge higher altitudes.

For example, extreme skydiving usually takes off at an altitude of 7500 meters.

The minimum safe altitude is limited by the design of the parachute.

Considering the size of the parachute, the speed of opening, and other factors, if the parachuting altitude is too low, the parachute may not fully open, thus affecting the safety of the skydiver.

So generally.

The minimum safe altitude for ordinary skydiving is above 500 meters.

If it is a paratrooper, because the minimum safety altitude of a military parachute may be designed to reach 300 meters, the minimum safety altitude of the paratrooper will be reduced to above 300 meters.

Well known.

Modern fighter jets all have catapults.

The so-called "ejection seat" is a "parachute" installed on the fighter seat.

If a pilot has a flight accident or is hit.

You can also use the ejection seat to eject from the cabin and escape.

However, the minimum safe altitude for a fighter jet's ejection seat is above 100 meters.

Below 100 meters, pilots will also be at great risk.

Of course.

Both the minimum safe altitude and the maximum safe altitude are limited to ordinary skydiving.

Because ordinary skydiving and extreme skydiving are two completely different concepts.

For example, the current world record for low-altitude extreme skydiving is 50 meters. That is, the lowest parachute opening record for low-altitude skydiving is 50 meters, which is only a dozen stories high.

This is how most people play.

He has already gone to see the King of Hell.

Not a moment later.

This Y-5 transport plane has already arrived at the parachute base more than kilometers away.

It is said to be a skydiving base.

In fact, it is a farmland where the crops have been harvested.

Xinyang is located at the junction of the North China Plain and the middle and lower reaches of the Yangtze River Plain, and its terrain is relatively complex.

There are mountains, hills, plains, lakes and swamps.

The core area of ​​the 'parachute' base is a flat farmland, but there are also low hills and hills in the distance.

The hills and hills are lush and covered with trees.

But this 'plain' is very empty.

There were no other obstacles except the haystacks made of straw.

Just right for skydiving.

Uh!
Unless you are extremely unlucky and encounter an air current, you will be blown to the swamps and lakes in the northwest corner.

The Y-5 transport plane kept circling in the air and waiting.

below.

At this time, the more than ten trainees in the first Y-5 transport plane had all been thrown out of the plane by the instructors and returned safely.

The second Y-5 transport aircraft has also opened its hatch.

The students filed out one after another.

By the time all the trainees in the second transport plane were "thrown" out of the plane.

The third transport plane followed immediately.

When the third transport plane began to "throw" students out, the fourth transport plane also began to circle and lower its altitude.

The four transport planes cooperated very well.

As time passed, the atmosphere in the cabin became more and more tense.

Yes.

Although everyone has had two skydiving experiences.

But now that I’m approaching my third skydive, I can’t help but feel nervous.

Maybe only by jumping a few more times can I eliminate the fear in my heart.

Di~~~di~~~di~~~
at this time.

A shrill alarm suddenly rang in the cabin.

Accompanied by the sound of alarm bells.

The cabin door was also slowly opened.

Seeing the cabin door already opened, everyone's breathing became more rapid.

(End of this chapter)