Bai Tangfei smiled.

Wang Zhuyu on the side had a calm face, and his eyes fell on the No. 109 L-15C Falcon that was driving smoothly in the taxiway.

Now, the special training trainees who stay on the ground are studying things about the code name and the comprehensive assessment of the stand-alone machine, while paying attention to Zhou Hai, who was the first to be assessed.

In order to hone the tactical awareness of the trainees to the greatest extent, there is no official pilot to accompany them, and everything needs to be completed alone.

The assessment sequence is arranged by the grades, and the first assessment is also an affirmation, as well as a performance of strength.

In other words, it's not like you can be given the first assessment if you want to.

The L-15C Falcon, mounted with a Thunderbolt-8B close-range combat missile, slowly moved forward, carrying the main and auxiliary landing gear aviation tires of the semi-empty airframe, rolling on the concrete surface of the cold and dry taxiway, slightly deformed, and a stream of high-temperature air like a torrent swept out of the tail nozzle, releasing a rolling heat wave.

"Call the tower, Trainee 1 asks to take off."

Holding the metal joystick, Zhou Hai looked at the entrance of the main runway that was getting closer and closer, stared at the straight and slender main runway on the right, turned on the radio equipment, and sent a take-off application to the Quzhou base tower.

Everything seems to be in control.

"Cadet No. 1, southeast wind on the ground, wind speed level 3, level 4 gusts, no crosswind, the target airspace has cleared, and takeoff is permitted." The control officer of the tower at the Quzhou base immediately responded in accordance with the procedure, gave permission to take off, and reported a series of ground wind direction data: "I wish you a safe journey and a smooth flight." ”

"Cadet No. 1 received it and is ready to take off."

Zhou Hai, who had obtained permission for the tower to take off and stayed in the cockpit, could feel the eyes from all over the base and the attention of Commander Lin Jian, his eyes were fixed, his heart was serious, and he took a deep breath to operate.

Right hand, press the bar forward.

Step on the rudder to the right and turn the direction.

The core content of today's single-aircraft comprehensive assessment is to launch live ammunition to attack target aircraft, which is still the first experience of Zhou Hai since his service career, and it needs to be handled cautiously.

Under the gaze of many personnel, the silver-gray L-15C Falcon slowly turned to the entrance and aimed at the straight and slender main runway, the sound of the turbofan engine gradually became louder and louder, and the output of thrust became higher and higher, pushing the fuselage to coast at high speed.

Galloping for more than 200 meters, with the arrival of the critical speed of take-off, the left and right wings provide high lift, Zhou Hai instinctively pulled the rod to raise his head, choose a normal and accurate angle of attack, and raise his head to the sky.

Fly.

"Call the tower, Cadet No. 1 requests to perform the air combat maneuver assessment subject." Zhou Hai held the control stick to keep circling and flying, observing the airframe data and flight parameters given by the left and right screens on the plane, and then sent an application to the base tower.

The altitude is 3,000 meters, and the speed is 400.

"Trainee No. 1, permission to execute."

The tower controller sitting on a chair, holding an optical high-powered telescope in his hand, stared at the L-15C Falcon flying smoothly in the sky, and gave instructions.

Next to him, stood an invigilator officer subordinate to the base's special training headquarters, holding a tactical tablet in his right hand, with a serious face, ready to record the results of Zhou Hai's stand-alone comprehensive assessment at any time.

A series of equipment such as optical observation equipment and military high-definition cameras at the base, while locking on the L-15C Falcon in the sky.

After receiving the controller's order, Zhou Hai pushed the throttle valve with his left hand, stepped on the rudder with his right hand, changed the hovering state, and then accelerated the accumulation of energy, and suddenly pulled the rod to raise his head into the maximum elevation angle.

The L-15C Falcon has a sudden change in attitude, with the aerodynamic effect provided by the large pointed arch side strips and the aerodynamic rudder surface of the flaperons, the nose of the aircraft is quickly tilted back, and the tail is pressed forward by inertia, like a cobra raised high into an attack stance.

This is the most classic cobra maneuver in the history of aviation, officially known as Pugachev Cobra maneuver, by the original Soviet test pilot Viktor Pugachev, at the Paris Air Show, piloted the Su-27 "Flanker" heavy air supremacy fighter to carry out the whole maneuver, shocking the audience, sensational the whole world.

In those days, the Su-27 'Flanker' family became a unique benchmark among the three generations of aircraft precisely because of the Cobra maneuver, climbed to the pinnacle and became world-renowned.

Entering a new era, the L-15C Falcon embodies a variety of cutting-edge aviation technology, adopts three-axis and four-degree fly-by-wire control and advanced airborne avionics, and implements the once known ultra-difficult Cobra maneuver without difficulty.

"Buzz!"

With the roar of the engine, the L-15C Falcon, which was in an extreme state of high angle of attack like a cobra, dropped sharply from 430 kilometers per hour, and then, as the two S-17 'Minshan' engines output high thrust, the nose of the aircraft quickly pressed down forward, no longer continued to lean back, and smoothly changed the Cobra maneuver to maintain level flight.

After doing this classic maneuver, the L-15C Falcon changed to level flight did not pause and sluggish, re-accelerated to 500 kilometers per hour, the nose was raised again, the fuselage changed its flight attitude, and when it entered the state of high angle of attack, Zhou Hai suddenly pulled down the throttle valve to slow down the thrust and keep the two engines in a slow idle state.

The L-15C Falcon, which maintained a climbing attitude, lost thrust and gradually slowed down, and the lift provided by the left and right wings fell sharply in a cliff-like manner, and after rising to a height of more than 200 meters, its own energy was exhausted and the climb was terminated.

On the left side of the screen in the cabin, the speed display is 0, and the altitude is 3280 meters.

At this time, the entire Warhawk flight attitude is tilted forward, in a high angle of attack, with the nose facing up and the tail facing down, constituting one of the advanced air combat maneuvers in the aviation field - tail rush maneuver.

At the rear of the engine, facing the vast expanse of land below.

Brilliant and colorful.

Time, as if frozen in this moment.

Immediately afterwards, the L-15C Falcon, which maintained a high angle of attack forward attitude, entered a state of free fall under the action of gravity, and smashed vertically to the ground like a stone.

"Boom!"

After descending to an altitude of about 100 meters, the two S-17 turbofan engines that were idle at a slow speed let out an angry roar, bursting out with a maximum thrust of up to 9,500 kilograms.

The whole process seems long, but it is actually short, and it takes less than ten seconds before and after.

In fact, if the Air Force were willing to dig out the money in its trouser pocket and equip the L-15C Falcon with a vector turbofan engine, the implementation time of the tail rush maneuver would be more than doubled, and it would have super-maneuverability comparable to that of a fourth-generation fighter.

Of course, it was obviously not a good deal to spend a lot of money to replace the L-15C Falcon with a vector turbofan engine.

The higher education machine is honestly a higher education machine, don't think about wrestling with the third-generation machine all day long, and grab the work of the fourth-generation machine.

After carrying out two high-level air combat maneuvers in a row, Zhou Hai did not hesitate and marched towards the Herbst maneuver, which has the highest difficulty and technical requirements in the field of stall maneuvers.