Stall spin, a complex situation encountered by an aircraft, will often lead to flight accidents if it cannot be dealt with correctly.

As a test pilot, you have to test the stall spin, find the boundary of the stall spin, and correct it at the same time, so that you can compile flight teaching materials.

Chen Rui has done the subject of stalling and spinning many times, but those are fighters. If Chen Rui can't recover, he can at least choose to parachute.

Even when Chen Rui was doing this subject, he took Kaili to do it with him.

But it's different now, it's a passenger plane now.

Fighters can skydive, but airliners cannot.

Why? Because the passenger plane transports guests, these people do not parachute, even if they are carrying the parachute and the parachute is opened correctly, the chance of surviving is small.

Paratroopers train for parachuting. They don’t know how to practice thousands of times with just one movement on the ground. It has long become a normal physical instinct. But for ordinary passengers, who has received parachuting training?

In this way, even if they come down, when they touch the ground, either their legs or lumbar vertebrae are broken, the chance of being rescued is still low.

Therefore, the passenger plane does not have a parachute. If the passenger plane encounters a malfunction, it must rely on the pilot's ability to strive for a successful emergency landing.

Even if the pilot can skydive, is he allowed to jump? What should the passengers do if he jumps?

Therefore, if a passenger plane is to be certified by the General Administration of Civil Aviation, it must test all the subjects, including the most dangerous stall and spin subjects, find the way to enter, and then change it out. In this way, it can fly. It is set inside the control to prevent it from entering this state, and at the same time, it also provides a basis for the pilot to recover.

Since the passenger plane cannot parachute, the test flight of the stall spin is quite dangerous.

Historically, on October 22, 1963, Niuguo Aircraft Company flew its 100-seat jet airliner BAC-111. In the fifth test flight that day, the aircraft entered a stall spin. After losing control, the aircraft fell and rotated horizontally around the tail, like a falling leaf. The test pilot did not let the plane get out of this state in any way and eventually crashed. All 7 people on board were killed.

From that time on, the stall and spin of passenger planes has been a subject that scared all test pilots.

Our own transportation project is progressing steadily. If you want to be recognized, you must conduct a test flight in this area, but everyone is cautious.

Although the test pilot has the courage and will never be afraid of this subject, he has asked for instructions several times, but Mr. Ma, as the chief instructor, must be cautious.

After all, up to now, only this one can fly, if this one falls, the whole project will suffer a big blow.

In this way, he waited until Qin Guan and others arrived, and when he saw Chen Rui, Ma Lao finally couldn't help but came to look for Chen Rui.

Although Chen Rui flies fighter jets, these are inherently connected. After leaving the army, many fighter pilots will fly transport planes and passenger planes.

They are even the focus of the headhunters of major airlines. As long as those fighter pilots get out of the army, they will be hired with high salaries.

Fighter pilots have the most superb technology.

But on the other hand, pilots who fly passenger planes will definitely not fly fighters. Therefore, there is a saying in later generations that civil aviation can reserve pilots for the army. This can only be a layman. If a civil aviation pilot goes to the army, he can fly at most. It's just a transport plane.

Hearing this voice, not only Chen Rui stopped, but Qin Guan and the others also stopped. Qin Guan turned his head and saw Old Ma.

Old Ma's hair is gray, his mental state is very good, and his eyes are full of bloodshot eyes. It seems that he hasn't rested well these days.

If Yunshi wants to test the tail spin, he definitely can't be in Huating. Therefore, Yunshi, a large plane, has recently flown to the flight test institute. At this time, it was in a corner of the airport.

Qin Guan thought of a lot of things in his mind. Now, the tests of the two fighters are in progress, so Qin watched the situation inside the tower, walked out, and said to Mr. Ma: "Go, let's see. See Yunshi."

With excitement on Ma's face, he led Qin Guan and others to the apron.

"We have completed dozens of flight test missions, and the Huating City Government also attaches great importance to our transportation and provided it with a part of scientific research funding to allow this aircraft to continue its test flight. However, the Civil Aviation Administration of China has proposed to it. There are many requirements, so if we do not meet these requirements, it still cannot enter the civil aviation." Ma Lao said.

Ma Lao is a technician. He doesn't understand other things, but Qin Guan's heart is getting deeper and deeper.

The transportation of the tenth project must not be lost. If this project is lost, the domestic large aircraft project will be delayed for decades.

Therefore, under the impetus of Qin Guan, the Air Force has begun research, such as developing airborne early warning aircraft and air tankers on the basis of Yunshi. However, if Yunshi cannot enter civil aviation, it is destined to be a minority.

"Lao Ma, if you have problems in the future, you can ask our North Industries Corporation for help." Qin Guan said: "For example, if the test flight is short of funds, our North Industries Corporation has money in its accounts and can support it to continue."

Ma Lao's eyes are full of gratitude. Without Mr. Qin, the future of the Yunshi project would be dim.

"Yes, thank you Mr. Qin. We have built two aircraft now. The first is undergoing static testing, and the second is used for test flight. If you want to complete the test flight as soon as possible, it is best to have one or two more prototypes. The materials for our third plane have been prepared, and we are short of funds to build it." Ma Lao said.

The material of this third frame was trained in the McDonnell Douglas 80 project in later generations. Thinking of these, Qin Guan felt heartache: "Okay, this third frame can be built. We will invest in the North Industries Corporation. As for it We can also think of other ways."

Qin Guan inexplicably remembered that he had been attacked by an island ninja on a passenger plane. In order to avoid the plane's destruction and death, he had no choice but to exchange a Presidential 1 passenger plane.

After that, the plane was protected and could no longer be put into operation. If there are not enough backup engines, the engine on that plane can be removed.

As for the funds, even if you don't exchange currency, you can rely on the income of the North Industries Corporation.

In short, I have eaten the weight of the weight, and I must let this project go on and continue to succeed!