The thick body of the MiG-21MF made the shortest circle in the sky, and then it went around the underside of the airliner and swooped fiercely towards the back of the Tomcat fighter.

"Oh God, I bet his turn is less than a kilometer in radius!"

When talking about the performance of fighters, the turning radius is a frequently used indicator, this indicator is not constant, the altitude, speed is different, the turning radius is also different, however, the US Air Force has been in contact with the MiG-21 since the sixties, and has studied many defected MiG-21 fighters, in their flight, the MiG-21 has never made such agile movements, it is almost comparable to the Tomcat fighter.

No way, how did he do it?

The greater the speed, the larger the turning radius, this is a basic common sense, just now Qin Feng's fighter plane, the speed is the same as the passenger plane, in order to bite the other party's tail in an instant, so he has to slow down, just lift the speed brake!

Now, in the maneuver of the big overload, Qin Feng felt that all the blood was surging towards the lower half of his body, and he was about to have black vision in front of his eyes, and at this moment, the anti-load suit in his legs began to work, and he felt that his legs began to be squeezed, accelerating the blood backflow.

This kind of anti-load clothing has a good effect! Qin Feng thought secretly in his heart.

The performance of fighter jets is constantly improving, but there is a limit to the overload that the human body can bear, so there have long been anti-load suits, through artificial squeezing, so that the blood returns at an accelerated rate to prevent the generation of black vision.

In the 40s, the earliest anti-load clothing appeared, which was actually a capsule anti-load clothing. This anti-load takes 5 air sacs that cover the abdomen, thighs, and calves on the surface of the lower limbs of the body. When the positive overload is large, the airbag inflation puts pressure on the abdomen and lower limbs. Prevents blood from flowing down the body, thus ensuring the circulation of blood to the head.

Although it is helpful for pilots, this anti-load suit covers a large surface area of the body, making it difficult to dissipate heat. And the inflation is slow, the pressure is uneven, and the pilot is very uncomfortable.

Later, in order to solve the shortcomings of the capsule anti-load suit, Lambert of the United States designed the tubular anti-load suit. When pressurizing the legs, it is indirectly achieved by inflating and expanding the side tube to drive the frenulum to tighten the surface of the garment. When compressing the abdomen, the abdominal sac that communicates with the two legs and the lateral canals is used to directly compress the abdomen, that is, the pressure in the abdominal sac is the same as the pressure in the canals on both sides. The side tube type has obvious advantages over the capsule anti-load suit: that is, the inflation speed is fast, the pressure is uniform, and the heat load is significantly smaller.

In the 70s, experiments and studies by Burton and Schaeverstove in the United States further confirmed that the side-tube anti-load suit had the potential to provide better protection for pilots in continuous high overload flights. Therefore, the side-tube anti-load suit can provide the pilot with better anti-overload service.

Therefore, the full set of American equipment worn by Qin Feng now has a good ability to resist overload, and if the only drawback is that the stomach will be a little uncomfortable.

The legs are indirectly pressurized, and the pressure transmission loss is large. Therefore, a working pressure of more than 133kPa is required to resist the overload. The intra-abdominal pressure in the abdominal capsule is consistent with the intra-tube pressure on both sides during abdominal compression, which is similar to direct compression.

However, my legs were hard and my abdomen was soft, so my stomach was crushed.

Of course, the United States is also developing, and in 1988, Burton of the United States set up an optimized tubular anti-load suit to calculate the pneumatic equalizing tube anti-load suit, that is, the CSU-17/P combined high-tech enhanced design anti-load suit, commonly known as combat anti-load suit. Compared with the simple five-capsule load, it can provide more physiological protection, which is used by the US military F16 and F15 pilots.

And what about domestic? From the 60s, the capsule anti-load clothing was adopted, and in the 70s, the focus was on the development of side tube anti-load clothing. Naturally, it has also encountered an obstacle - the problem of abdominal tenderness, which has not been solved, although in order to optimize the side tube type anti-load suit, the study of the use of air spring abdominal sac has achieved certain results in reducing abdominal tenderness. However, its structure is complex and bloated, and it is not popular with pilots and cannot be installed.

The test pilots wore the latest KH-3 anti-load suit, which was also an airbag type, and it was not until the 90s that a pressure-equalizing anti-load suit based on the side tube was developed, and in 1995, the third-generation aircraft was installed.

Now, this anti-load suit can provide better anti-overload service, and Qin Feng achieved the first action of going around behind the opponent with a perfect turn.

However, with his turning, he also opened the airbrake, and his speed also dropped very much, in air combat, deliberately opening the airbrake is self-defeating, and the energy air combat theory tells everyone that when your fighter has no energy, it is a dead end!

What to do?

There's also a height difference!

Turn off the airbrake, turn on afterburner, and dive! Qin Feng's movements were coherent, and the MiG-21MF fighter was in his hand, it was like a part of his body!

The J-7 fighter approached the Tomcat fighter from behind!

According to the rules of the confrontation exercise, now, he needs to lock on to the target with radar.

And what about the powerful AWG-9 radar? Lao Tzu still slipped under your nose, and now, it's time for Lao Tzu to explode your chrysanthemum!

Qin Feng's heart had already begun to fantasize, if it was in a real battle, his current self happened to go around the back of the other party, and if the No. 8 bomb was already loaded, he would be able to explode his chrysanthemum now.

While he began to fantasize, he flipped the switches one by one and turned on the rudimentary PP21-M radar in front of him, hoping that this radar would not drop the chain and lock on to the target, quickly!

When Edwards saw the five trails above his head, he already knew there was a problem. He turned his gaze slightly and saw the mirrors on either side of the cockpit.

The simpler the device, the more effective, just like the rearview mirror of the car, on the partition frame of the cockpit glass in front of the Tomcat fighter, there are two slender rearview mirrors on both sides, and this rearview mirror is also the same as the role of the car rearview mirror, which is used to supplement the blind spot for the pilot.

Just like driving a heavy truck, the back is almost all blind spots, not to mention anything else, the ejection seat will block the back of the pilot's head tightly, and he will not be able to see the rear when he turns his head back, which is the biggest blind spot.

And for grappling, you must see the enemy plane at all times, if there is nothing in your front hemisphere, then the enemy plane must be behind your ass!

From the beginning of the fighter and the beginning of the air battle, tail chase is the most common way, and the rearview mirror can provide a little comfort to the pilot.

The reason for this is a little comfort, because the rearview mirror also has blind spots, it is impossible to see all the airspace, it is just a means of supplementation.

When Edwards looked in the rearview mirror, he didn't see Qin Feng's MiG-21 fighter, but he saw that white wake!