A moment ago, during the Inmaiman maneuver, Ning Lei raised the height of the landline to more than 4,000 meters, and after completing the somersault, the F14 fighter that entered the dive state began to accelerate non-stop.

Because when the tip of the wing of the fighter plane crosses the air at high speed, the pressure difference between the upper and lower parts of the wing is too large, and the water molecules in the air are reduced from the gaseous state to the liquid state under the huge negative pressure, and layers of white fog are generated at the top of the wing, and two unusually obvious white lines are formed on the path of the F14 fighter from a distance.

Could it be that Uncle Ning wants to fly supersonic?

Seeing that the F14 fighter had already folded its wings, and the whole plane dived to the ground in a delta wing flight attitude, questions involuntarily rose from the bottom of Liang Yuan's heart.

But just for a moment, Liang Yuan rejected this idea, this is a regular air show, the crowd below is not the Japan Maritime Self-Defense Force, even if the performance of transonic flight projects, the altitude must be above 3000 meters, generally speaking, when the altitude of the fighter is above 3000 meters, the real sonic boom felt on the ground is basically comparable to the sound of ordinary pistol fire.

In terms of the size and mass of heavy fighters such as the F14, once the flight altitude is below 150 meters, the sonic boom begins to cause physical damage to ground objects, and when the fighter is close to 60 meters, the energy carried by the sonic boom can already shatter ordinary glass, and as the distance is further reduced, the destructiveness of the sonic boom will rise in a geometric range rather than a linear rise.

Not long ago, when Ning Lei's plane smashed the porthole of a ship of the Japanese Maritime Self-Defense Force, the height above the ground would not exceed 15 meters.

If it weren't for the transonic speed, then looking at the current flight action could only be a prelude to the low-altitude large-scale speed pass, Liang Yuan thought of another possibility.

Generally speaking, the low-altitude large-scale speed pass field will put forward the greatest test of the structural strength of the fighter, after all, the air density at low altitude is much greater than that at high altitude, and the oncoming high-speed air flow "cutting" force is stronger for the aircraft. Once the aircraft structure is slightly defective, it is an irreparable flight tragedy such as mid-air disintegration.

For aerobatics at this time, Ning Leifei's low-altitude and large-scale speed pass field is also clearly telling the Americans that I have already touched the extreme performance of the F14A fighter.

Liang Yuan's head was full of all kinds of thoughts, but the F14 fighter roaring down in mid-air was getting closer and closer, and when it was nearly a kilometer away from the airport runway, the golden-red F14 fighter ended its dive at a large angle and began to make fine-tuning before passing through the field. At this time, the height of the F14 fighter from the ground was only more than 100 meters at most.

Liang Yuan and the two girls half-leaned their bodies and tilted their necks to watch Ning Lei's landline roar from the west, and when they were about to enter the airway above the airport runway, the golden-red F14 fighter dropped in altitude again, and it looked like it was only twenty or thirty meters above the ground.

After discovering that the F14 fighter lowered its altitude again, the noise of the people on the ground became even louder.

The huge roar of the aero engine was getting closer and closer, and the two girls who were half-hung on Liang Yuan's body were also getting more and more excited, and the two very similar Qingyue screams lingered in Liang Yuan's ears.

The cold steel whistling in front of him, and the delicate and delicate flowers in the crook of the arm, this sharp contrast between extreme movement and stillness to steel and softness. For a while, it was so sour that someone went straight into the clouds, and almost forgot to watch the air show.

In the F14 fighter plane that shook violently due to the change of air flow, Ning Lei's forearms and wrists seemed to be cast from an alloy of a special material, maintaining a kind of serene stability in a chaotic resonance tremor, like the eye of a tropical storm, no matter how sinister and monstrous the huge waves around it, the middle of the eye of the storm is always water and sunshine, light and light.

At the moment when the landline approached the www.biquge.info of the Runway Biqu Pavilion, Ning Lei's forearm fell steadily and evenly to the right. Almost instantly, the gray-black runway and blue skyline began to spin and roll rapidly.

F14 fighters that crossed the top of the runway swept past the nearby tower in the blink of an eye. From Liang Yuan's position, the two tall vertical tails of the F14 fighter look like they are still below the third floor of the tower, so it can be judged that the height of Ning Lei's landline from the ground at this time will not exceed 20 meters.

Of course, this is also the 20th century, when the conditions for viewing the exhibition were relatively relaxed, after entering the new century, due to Lao Maozi caused several tragic air show accidents, the result of the global air show began to carry out a large-scale rectification, not only ultra-low altitude aerobatics under 60 meters was completely banned. Even the distance between the spectators and the runway of the plane has been changed to more than 3,000 meters, similar to the situation that Liang Yuan was only 20 meters away from the runway at this time, and there was no longer any possibility after entering the new century.

In the eyes of the public, the golden red F14 fighter suddenly began to roll right from the moment it crossed the terminal, and the F14 fighter passed over the airport runway with a huge engine roar at an extremely stable rolling rate, after arriving at the other end of the runway. F14 just completed two rolls to return to a horizontal forward flying state.

Without half a minute of procrastination or hesitation, almost at the moment when the plane corrected its attitude, the afterburner system of the engine began to work, the tail of the fighter aircraft was swallowed with orange flames several meters long, and the F14 re-entered the sky with the nose held high in a posture that had just taken off.

Generally speaking, aerobatics below 10 meters in the ultra-low-altitude field abound, and it is not uncommon for the cockpit to fly downwards once it rolls, but it is much rarer to roll the whole process.

When rolling at ultra-low altitude, between the land that is close at hand and the sky is high and vast, the chaotic suffocation of space caused by the incomparably fast transition between distance and near is not something that every pilot can physically and psychologically adapt to, and it can be said that it is impossible to do this level of aerobatics without steely nerves and liquid helium-like calm.

Of course, for the exhibitors, the low-altitude rolling F14 fighter jet looks thrilling at the same time, but there is also a touch of elegant chic, but the US Navy military professionals on the scene saw other things.

Since the training between Ning Lei and the pilots of the US Navy's carrier-based aircraft in Japanese airspace, the US Navy has updated Ning Lei's personal file, and in the words of the US Navy's new evaluation: China's Ning Lei's flight is as accurate as a clock, and every flight action is completely controllable, that is, no more and no less, just right.

The roll rate of the F14 fighter is often between 40 and 50 degrees per second, and the runway length of the Lemore naval base is close to four thousand meters.

When the Republic of China used up the AIM54 ultra-long-range air-to-air missile in Nansha during World War II, the timing of Ning Lei's plane to break through the core air defense circle of the Vietnamese at supersonic speed is also a powerful verification of this.

"Wow, Daddy is amazing. ”

Looking at the F14 fighter jet that was climbing quickly and far away, the two girls jumped and screamed.

Liang Yuan's side, followed by the loud roar of the engine, the noisy noise gradually became much quieter, and in the loudspeaker not far from Liang Yuan's side, the tone of the US Navy commentators was unusually calm, no longer the fierce sensationalism in front of the scene.

"A small change. ”

Obviously, the US Navy commentators were very stingy and did not even give the word "little surprise".

"The combination of ultra-low-altitude passage and rolling and inverted flight, which is not the limit, is fortunately long enough at the Lemore base, otherwise Ning's F14 will have to fly out of the performance area with its belly upright....... ”

The meaning of the on-site commentator's words was that Ning Lei happened to be at the end of the runway after rolling around twice, and his flight attitude should be blind.

"Can this be dark, as if you didn't have your belly up when you flew upside down. Ning Wanfei pouted dissatisfiedly.

The two girls and Liang Yuan have been fooling around in the past few years, and their language style has been influenced by Liang Yuan a lot, such as the two girls who are brain-dead and difficult to dismantle.

"Xiaoyuan, did the plane fly out of the performance area with its belly up when it flew upside down?" Ning Wanjia asked curiously.

"Uh......" This question really stopped Liang Yuan.

In his previous life, whether it was a video or an air show scene, Liang Yuan had seen a lot of aerobatics performances flying upside down, and generally speaking, after the end of the field, it must have been pulled up and climbed, but when the performance plane turned over and put Liang Yuan in a correct flight posture really didn't care.

"Ah, I just remembered a detail. Liang Yuan looked at the F14 fighter that was climbing in the sky and said.

"I remember Uncle Ning's landline seems to complete the entire all-field action with a straight wing attitude, generally speaking, the aircraft must increase the throttle when passing through the field at low altitude, so as not to encounter unexpected airflow shear guide stalls, for the F14 fighter jet's flight computer, increasing the throttle is acceleration, and the relative wing control should tend to the delta wing state with reduced flight resistance......"

As soon as Liang Yuan's voice fell, Ning Wanfei said, "Dad changed the plane to a hand-controlled one." ”

Liang Yuan nodded and said with a smile: "It seems that it should be like this, but the flight control of the F14 at low altitude may also be different from that at high altitude, and I must ask Uncle Ning when I go back with the problem of flying through the field upside down." ”

Tilting his head sideways, Liang Yuan watched the golden-red F14 fighter just change from the inverted flight of the Inmaiman gyration at an altitude of about 1,000 meters, but the changed F14 was not a level flight, but a somersault-like action at an oblique angle and flew towards the landing end of the airport runway.

It seems that the air show on this public open day has ended, and Liang Yuan secretly guessed that after Uncle Ning drove the plane through the airport and then circled in a small radius to re-enter the landing route of the airport and land safely, the performance would be completely over. (To be continued......)