After entering a short stall tailspin, it quickly dropped high with the nose tailspin, and after two and a half revolutions, the left ailerons and flaps had recovered some of their aerodynamic effects in the dive state.

At this time, the situation of No. 121 improved, but No. 109, driven by Zhou Hai, fell into a deadly vicious circle.

Due to the influence of the central area of the jet airflow, the L-15C Falcon enters the stall tail spin, which not only rotates itself in an accelerated state, but also suffers from the dual effects of strong vertical wind shear and horizontal wind shear, and the fuselage changes from the tail spin attitude of the nose down to the horizontal tail spin like falling and rotating leaves.

In aviation, a simple vertical wind shear is enough to have a fatal effect on an aircraft during the take-off and landing phases.

Now, Zhou Hai is affected by two different types of wind shear, both of which are of strong level, with wind speeds of more than 20 meters per second.

"I'm in the center of the airflow, I can't change out, repeat, I can't change out."

Zhou Hai clenched the joystick with his right hand, his eyebrows were furrowed, his face did not change, and while sending a message to Yang Xiaolong, he operated and forcibly turned off the stall tailspin warning prompt.

The situation seems to be somewhat dangerous.

In an instant, the cramped cockpit that rotates at high speed returns to silence, and the screen on the left side shows the current flight parameters.

The true airspeed is 19 kilometers per hour, the altimeter is reduced at 89 meters per second, the body is completely out of control, and the spin frequency has reached three revolutions per second, and it is still increasing.

The average flight overload has reached 7G, leaving only 2.5G away from the maximum limit overload of the L-15C Falcon.

"No. 109, change out! Change it out now! You're spinning too fast! In the radio channel, Yang Xiaolong's anxious roar sounded.

The nose of the L-15A Falcon with 121 white numbers painted on the nose of the aircraft, after falling to an altitude of about 1,300 meters, the six aerodynamic rudder surfaces of the fuselage and the left and right main wings have regained their effect under the dive, providing lift, and the turbofan engine has steadily output power, and it has been flattened and flew out of a stable circle, avoiding the airspace range encountered before.

Yang Xiaolong stared at the L-15C falling at high speed in the distance, like an ant on a hot pot, his eyes were full of anxiety.

Revolve!

In addition to strict requirements for height, there are also requirements for rotation frequency, and the limit change condition is 5 rotation frequency per second.

If this limit is exceeded, it means that it cannot be changed.

"I'm trying!"

Zhou Hai's voice was calm and powerful, his eyes were attentive, his right hand was forward to maintain the pressure bar state, and the right hand was full of rudders, trying his best to control the war eagle under him.

However, the L-15C Falcon High Education, which has completely lost control, has completely failed the six aerodynamic rudder surfaces and the left and right main wings of the fuselage, and the two S-17 Minshan engines are in an idle state and have not output a single bit of power.

In the state of stall tailspin, adding oil is a big taboo, not only can it not work, but it will help.

Revolve!

Fall!

As precious time passed by second, under the influence of two windshear and the center of the high-speed jet airflow, the condition of the L-15C Falcon did not improve in any way, the rotation speed still increased, and the flight altitude decreased wildly.

8 thousand meters,

7 thousand meters,

Dropping about 100 meters per second, the state of stall tailspin has not improved, and below is the vast northern land, surrounded by endless urban agglomerations.

"109, change it quickly!" Yang Xiaolong's eyes were fixed on No. 109, which was spinning off at high speed, and his anxiety was even worse.

The flying L-15A falcon, with its head lowered, accompanied by it, greeted the vast land.

"Number 109, I'm at the academy airport tower, what's going on?"

At this time, the female controller of the airport tower connected to the encrypted communication channel, and her voice was fast, revealing solemnity and seriousness.

"Report Tower, 121, I'm going to try to change it at medium and low altitudes, avoiding the influence of two windshear, and it is now out of the range of high-altitude jet airflow." Zhou Hai had a series of information about the high-altitude jet air flow in his mind, his eyes were as deep as the starry sky, and his words were understated, without the slightest hint of panic, which was in strong contrast with Yang Xiaolong, who was anxious in his heart.

Calm down

stable

We must not mess with ourselves.

"No. 109, your rotation speed is too fast, and it is too risky to change it at medium and low altitudes," Hearing Zhou Hai's answer, Yang Xiaolong was short of breath, and his heart was even more anxious.

Zhou Hai kept the pressure bar in a state, and his eyes were glued to the altimeter data: "No. 121, there is no choice now, please answer the tower." ”

Medium and low altitudes are the only way to save fighters.

Zhou Hai will never watch No. 109 fall to the earth, and he will never give up until the last moment.

Because, this is his No. 109, and today is the first day of solo flight.

At a height of 6,230 meters, the fall rate has increased to 110 meters per second under gravitational acceleration, and there are only 56 seconds left before touching the ground.

After deducting the buffer time of about three seconds, it is only 53 seconds.

"No. 109, permission to change out at medium and low altitudes." The female controller obtained the permission of the superior commander next to her, spoke quickly and quickly, and immediately agreed to the plan given by Zhou Hai.

"Received on the 109th."

Zhou Hai responded.

Six thousand meters.

5 thousand meters.

As the altitude of its flight decreased rapidly, the density of the air gradually increased, and after passing the dividing line at an altitude of 5,000 meters, the heavy and sluggish body suddenly lightened, and the nose of the aircraft pressed down slightly, as if it was freed from the invisible and powerful shackles.

Now, the entire Warhawk has been detached from the main area of influence of strong vertical and horizontal windshear, and has completely said goodbye to the terrifying high-altitude jet jet belt.

However, the main crisis has not been resolved.

The fuselage is still in a state of stall tail spin and falling, Zhou Hai's eyes are solemn, keeping the pressure lever and the right rudder full, the L-15C adjusts the angle, and the nose gradually descends.

At a height of 4,000 meters, the nose of the aircraft is facing the ground below, and a straight and narrow highway comes into view, with rolling traffic and all kinds of vehicles.

At an altitude of 3,000 meters, the L-15C Falcon has increased its dive speed to 60 kilometers per hour, and the tip of the right wing of the fuselage and the ailerons have recovered a certain degree of aerodynamic effect, slowing down their rotational tendency and speed.

This is a good start, but as we get closer to the ground, the frequency of rotation of the aircraft is still uncontrollable.

At an altitude of 2,000 meters and a dive speed of 120 kilometers per hour, in just a few seconds, the aerodynamic rudder surfaces of the left and right main wings and flapers of the fuselage have successively recovered a certain effect, and the rudder, which is stiff as death, has gradually regained its vitality, so that the generated lift resists the rotational moment.

Rotation frequency, reduced from three revolutions per second to two revolutions per second.

There are signs that the stall tailspin state has changed, and the altitude has been reduced to 1,500 meters.

"Number 109, ejection! Catapult! ”

Yang Xiaolong, who was sweating profusely, saw that Zhou Hai still couldn't change out, and couldn't wait any longer, so he was hoarse and gave the order to forcibly eject and escape.

Words, anxious.

Although an L-15C Falcon high-education plane worth tens of millions of dollars is expensive, it can never take the life of Zhou Hai again.