A moment ago, when the Yingmaimann spiral was performed, Ning Lei raised the height of the landline to more than 4,000 meters. After completing somersault spiral, the f14 fighter that entered the dive state began to accelerate continuously.

When the tip of the fighter's wings passes through the air at a high speed, the pressure difference between the upper and lower parts of the wings is too large. Under the huge negative pressure, the water molecules in the air are reduced from gas to liquid, and layers of white mist are generated at the top of the wings. From a distance, two unusually obvious white lines are formed on the route where the F14 fighter flies.

Could Uncle Ning want to fly supersonics?

Seeing that the f14 fighter had already closed its wings and the entire plane dived to the ground in a delta-wing flight attitude, questions involuntarily emerged from Liang Yuan's heart.

But in just a moment, Liang Yuan rejected this idea. This was a regular air show. The crowd below was not the Japanese Maritime Self-Defense Force. Even if the transsonic flight was performed, the altitude was definitely above 3,000 meters. Generally speaking, when the height of a fighter was above 3,000 meters, the real sonic boom felt on the ground was basically comparable to the sound of an ordinary pistol.

In terms of the volume and mass of heavy fighters like F14, once the flight altitude is less than 150 meters, the sonic boom begins to cause physical damage to ground objects. When the altitude of the fighter is close to 60 meters, the energy carried by the sonic boom can already crush ordinary glass. As the distance is further reduced, the destructiveness of the sonic boom will increase geometrically rather than linearly.

Not long ago, when Ning Lei drove the plane to shatter the porthole of the Japanese Maritime Self-Defense Force, the height from the ground would not exceed 15 meters. Of course, the high Mach speed of the Ning Lei fighter at that time was also an important reason for its huge destructive power.

If it weren't for transonic speed, then looking at the current flight movements can only be the prelude to the low-altitude large-meter speed movement, Liang Yuan remembered another possibility.

Generally speaking, the high-speed metering field of low altitude will put the greatest test on the structural strength of the fighter. After all, the air density at low altitude is much greater than that at high altitudes, and the "cutting" force of the oncoming high-speed airflow is stronger. Once the aircraft has a slight defect in the structure, it will be an irreversible flight tragedy such as disintegration in the air.

For the aerobatics at this time, Ning Leifei's low-altitude and high-speed speed clearance also clearly told the Americans that I have already figured out the ultimate performance of the F14a fighter.

Liang Yuan had various thoughts in his mind, but the f14 fighter that was whizzing down in the air was getting closer and closer. When he was nearly kilometer away from the airport runway, the golden f14 fighter ended the dive at a larger angle and began to make fine adjustments before the field. At this time, the f14 fighter was only a maximum height of more than 100 meters from the ground.

Liang Yuan and two girls half-punched their bodies and tilted their necks to watch Ning Lei's landline roaring from the west. As they were about to enter the airport runway, the golden and red f14 fighter fell down again, looking only 2 or 30 meters away from the ground.

After discovering that the F14 fighter has lowered its altitude again, the noise of the people visiting the ground has become even more noisy.

The loud roar of the aircraft engine was getting closer and closer, and the two girls half hanging on Liang Yuan were also getting more and more excited. Two very similar screams of Qingyue were lingering in Liang Yuan's ears.

On the way was the cold steel whistling, and the tender and tender flowers in the arms were graceful and soft. This sharp contrast of extreme movement, quietness, steel and softness. For a moment, someone was so sour that he was so happy that he almost forgot to watch the air show.

The gray-black airport runway in front of me hit the face. In the F14 fighter jet that was shaken violently due to the change of airflow, Ning Lei's forearm and wrist seemed to be made of alloy of some special material, maintaining a tranquil stability in a mess of resonance and tremor, just like the wind eye of a tropical storm, no matter how sinister the huge waves around it are, the middle of the wind eye will always be filled with water and sunshine.

The moment the landline approached the starting point of the runway, Ning Lei's forearm fell to the right at a steady and constant speed. Almost instantly, the gray-black runway and the blue skyline in front of him began to rotate and roll quickly.

The f14 fighter that crossed the top of the runway flashed past the nearby tower in a blink of an eye. From Liang Yuan’s position, the two tall vertical tails of the f14 fighter looked down below the third floor of the tower. From this, it can be judged that the height of the Ning Lei landline will not exceed twenty meters from the ground at this time.

Of course, this is the 20th century when the conditions for exhibition are relatively relaxed. After entering the new century, due to the fact that the Russians created several tragic air show accidents, the global air show began to undergo a large-scale rectification. Not only was the ultra-low aerial aerobatics below 60 meters completely banned. Even the distance between the audience from the plane's take-off runway was changed to more than 3,000 meters. Similar to Liang Yuan's situation at this time, it was only 20 meters away from the runway, and there was no possibility after entering the new century.

In the eyes of the people who visited the exhibition, the golden and red F14 fighter suddenly began to roll right from the moment he crossed the terminal. The F14 fighter passed through the field with a huge engine roar at an extremely stable rolling rate. After arriving at the other end of the runway, the f14 happened to complete two rolls and return to a horizontal straight flight state.

Without any dragging or hesitation, almost the moment the plane corrected its posture, the engine's afterburner system began to work. The tail of the fighter jet was breathing orange flames several meters long, and the f14 raised its head and re-entered into the sky in a posture that had just taken off.

Generally speaking, there are many aerobatics in the ultra-low altitude field, and it is not uncommon to make the cockpit fly downwards once, but the entire process is much less likely to roll.

When rolling at ultra-low altitude, the chaos and suffocation in space caused by the extremely fast transition from far to near is not something that every pilot can adapt physically and psychologically. It can be said that without the nerves of steel and the calmness of liquid helium, it is impossible to do this level of aerobatics.

Of course, for the exhibitors, the set of special movements of the F14 fighter that rolls in the low altitude and looks thrilling, and there is a hint of ease and gracefulness, but what the US Navy military professionals on the scene saw were other things.

Since Ning Lei's plane competed with the US Navy's carrier-based aircraft pilot in Japanese airspace, the US Navy has updated Ning Lei's personal profile. To use the new evaluation of the US Navy: China's Ning's flight is as accurate as a clock, and each flight action is completely controllable, that is, there are no more or less, just right.

The rolling speed of the f14 fighter is often between 40-50 degrees per second, and the runway length of the Lemore Naval Base is close to 4 kilometers. Ning Lei's plane just arrived at the end of the runway after completing two laps of rolling, which further reflects Ning Lei's biggest flight characteristics when flying - precision.

When the Republic of China World War II was used up in Nansha, after all the Aim54 ultra-long-range air-to-air missiles were fired, Ning Lei's choice of timing to break into the Vietnamese core air defense circle at supersonic speed also strongly verified this point.

"Wow, dad is so awesome."

Watching the two girls of the f14 fighter who were climbing quickly and screaming.

Beside Liang Yuan, the noise that passed by with the loud roar of the engine gradually became much smaller. In the speaker not far from Liang Yuan, the tone of the US Navy commentator was extremely calm, no longer as intense and sensational as before the opening.

“A small change.”

It is obvious that the US Navy commentator is very stingy and does not even give the word "small surprise".

"The combination of ultra-low altitude pass and rolling backward flights is not considered the limit. Fortunately, the runway at the Lemore base is long enough, otherwise Ning's f14 would have to fly out of the performance area with his belly facing the sky..."

The on-site commentator meant that Ning Lei was right at the end of the runway after rolling twice, he was probably confused.

"Can this be so dark? It seems that when you fly backwards and go out, you don't have your belly facing the sky." Ning Wanfei pouted in dissatisfaction.

The two girls and Liang Yuan have been engrossed in recent years and their language style has been greatly influenced by Liang Yuan. For example, two girls who are brainless and have never been dismantled, have already learned and applied it.

"Xiaoyuan, did the plane fly out of the performance area when flying backwards and running through the field?" Ning Wanjia asked curiously.

"Uh..." This question really caught Liang Yuan's mind.

In my previous life, Liang Yuan watched a lot of aerobatics performances that flew backwards through the field, and generally speaking, he would definitely climb up after the game. However, Liang Yuan, who turned the plane over and set his flight posture, had never cared about it.

"Ah, I just remembered a detail." Liang Yuan said, looking at the climbing f14 fighter jets in the sky.

"I remember Uncle Ning's landline seems to complete the entire field movement with a straight wing. Generally speaking, when the aircraft is in a low altitude, the throttle must be increased to avoid accidental airflow shear and stall. For the flight computer of the f14 fighter, increasing the throttle is acceleration. The relative wing control should be inclined toward the deltas state with reduced flight resistance..."

As soon as Liang Yuan finished speaking, Ning Wanfei said, "Dad changed the plane to manual control."

Liang Yuan nodded and said with a smile: "It seems that way, but the flight control of the f14 at low altitude may be different from that at high altitude. As well as the question of flying backwards on the field, you must ask Uncle Ning after going back."

With his head raised, Liang Yuan watched the golden and red f14 fighter just changed from the spiral backward flight of Yingmaiman at an altitude of about 1,000 meters. However, the modified f14 did not fly flat, but pulled out a somersault-like action at an inclined angle and flew towards the landing end of the airport runway.

It seems that the flight performance of this public open day has ended. Liang Yuan secretly guessed that after Uncle Ning passed through the airport, he then made a small radius and re-entered the landing route of the airport safely landed, the performance would be completely over. (To be continued...)

Chapter 72: A coward or a hero (Medium:
Chapter completed!