Following.

In the early morning, the morning sun rises, and a soft and faint wisp of early sun emerges, reflecting the whole world.

The training base, Venue 3, is full of various training facilities and equipment.

"Unity is strength, unity is strength, this strength is iron, this strength is steel, harder than iron, stronger than steel, towards the ...... of the law"

In the distance, there was a faint sound of singing from the No. 2 field, and the third-year flight cadets were going out to exercise, singing loudly while running.

The song is the most classic "Unity is Strength", and the number of times it has been sung is incalculable.

"Poof!"

At the top of the poplar tree at the edge of the field, a sparrow standing on a slender branch seemed to be disturbed, flapping its wings and flying away quickly.

"Zhou Hai, first of all, you have to understand the meaning and concept of skydiving, parachuting refers to the act of using a parachute to slow down the descent with the help of resistance after jumping from a high altitude, and finally landing safely. This is one of the important skills that every student pilot must master, and parachute diving is at its core. ”

Wearing a short blue shirt, Tan Gang had a serious face, and explained the knowledge and skills of skydiving to Zhou Hai in front of him: "The parachute is an aviation tool that uses the principle of air resistance and wind power, and you should understand the principle of air resistance and wind power......

"Understood." Zhou Hai was wearing training clothes, and after listening to Tan Gang's detailed explanation, his inner cognition of skydiving became more thorough.

Tan Gang nodded, and continued to explain each step and detail of skydiving, what actions to make before landing, to avoid injury, folding and opening the parachute, and so on.

Time passed slowly, and Tan Gang taught one important knowledge after another about skydiving.

"Do you remember everything I said?" After about thirty minutes of theoretical lectures, Tan Gang sweated slightly on his forehead, and said with a straight face.

Zhou Hai nodded: "Remember, do you need me to repeat it?" ”

"You memorize the key points about the tumbling landing." Tan Gang's face was calm, his sharp gaze stared at Zhou Hai, and said.

"Tumbling skydiving is a landing position after a set of standard skydiving maneuvers." Zhou Hai, who was doing a straddle movement, held his chest and slowly recited the key points of knowledge:

"When skydiving lands at high speed, parachutists must coordinate their own posture, through the flexion and rolling of body joints, the impact energy with the ground, as far as possible to disperse enough parts of the body and parts that are not sensitive to impact, and at the same time prolong the impact time, avoid excessive force in the body part, so as to reduce the probability of injury, which is briefly summarized - landing and rolling, unloading to reduce damage."

"That's a good summary, come here, I'll show you the parachute."

Tan Gang nodded with satisfaction, turned around and motioned for Zhou Hai to come over, squatted down, and opened the yellow-green military umbrella bag on the ground: "This is a new generation of parachutes in our army, round umbrella type, using ultra-high-strength polyethylene fibers and composite materials, and equipped with a three-ring release device. Generally speaking, parachutes are divided into a main parachute and a secondary parachute, the main parachute is opened first, and if the main parachute fails, the auxiliary parachute is opened. ”

The yellow-green military umbrella bag is open, and the interior is intricately deconstructed, containing a white soft and tough round main and secondary umbrella.

"What if the parachute also fails?" Zhou Hai stared at the yellow-green painted umbrella bag, thought for a while, and muttered.

"There are two choices, first, keep calm before landing, manually repair the faulty main or auxiliary umbrella, and reward third-class merit when landing."

Tan Gang smiled lightly, his face revealed a sense of ease, and his words were relaxed and indifferent: "Second, fall vertically, break your bones, and posthumously award your personal second-class merit and martyrdom title." Of course, personally, I would like this to happen and you will be able to attain third-class merit, not second-class merit. ”

“……”

Zhou Hai fell silent.

"There are many kinds of failures of the main parachute, the main parachute fails to pull out of the finishing bag, the main parachute does not expand, the parachute line is knotted, when the parachute is opened, part of the parachute line breaks and fails, the parachute is torn and torn, the main wing part is inflated, and so on."

Tan Gang's face did not change, and he continued to explain: "Under the three-ring release device of the umbrella bag, the failure of the main umbrella allows you to cut the parachute rope and abandon the main parachute, but you have to hope that the secondary parachute opens normally. ”

Every failure is a lesson learned with life and blood.

Every year, all kinds of accidents and tragic accidents occur in the airborne troops and civilian parachute jumping circles, and it is not uncommon for the main and auxiliary parachutes to fail at the same time.

Skydiving is a sport that follows the same rules as aviation.

Rigorous, harsh, and absolutely not allowed to mix in a little sand.

Skydiving, the only thing you can rely on is the bag behind you.

The umbrella bag that you carry must be folded and packed by yourself, and it is strictly forbidden for others to interfere, and finally it can be inspected and audited by experienced instructors before it can be passed.

If there is an accident during parachuting, there is a 99% chance that you will be crushed, a 0.9% chance of leaving a whole corpse, and a 0.1% chance of surviving.

"Understood."

Zhou Hai's face was serious, his eyes were fixed on the yellow-green umbrella bag, and he wrote down everything Tan Gang said.

"I'll tell you how to deal with the failure of the main and auxiliary parachutes, first, in the case of throwing away the failure of the main and auxiliary parachutes, first of all, you need to determine what the cause of the failure is as soon as possible, for example, if the auxiliary parachute fails to expand and fail, you can directly use a paratrooper knife to cut the interlayer of the backpack and open the parachute."

Tan Gang looked at Zhou Hai, who was studying seriously, nodded, and explained in detail word by word: "Although, it is possible that the resistance of the auxiliary parachute is too small, which will cause you to fall faster, and increase the chance of fracture after landing, but it is better than breaking bones, the second ......"

Tan Gang will list each failure situation in detail, give the reasons and details of each failure, and inform the solution.

Generally speaking, the failure of the main parachute is a very common problem, and the failure of the main and auxiliary parachutes at the same time is rare.

The former has a high chance of surviving at the ordinary level of difficulty, and only needs to open the normal auxiliary parachute to survive.

However, the latter deals with the hellish level of difficulty, encountering a situation where the main and auxiliary parachutes fail at the same time, remain calm and pray that the cause of the failure is the easiest, and then successfully repair the parachute.

If you encounter an irreversible failure - congratulations, you have obtained a ticket to reincarnation, and the death is miserable, heaven and hell depend on the individual,

Military personnel enjoy the title of martyrs and are posthumously awarded meritorious services based on their merits and performance during their lifetime.

Private skydivers can receive high insurance company compensation.

Of course, the premise is that you have to buy a high amount of insurance.

Quietly listening to Tan Gang's detailed list of various faults and treatment plans, Zhou Haiwei spoke, like a dry sea, absorbing recorded knowledge.

The sun is shining, and the sun is gradually hot and dazzling.