Chapter 37: Pugachev Cobra

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"I wipe, why did you fly to Japan all of a sudden!" Yang Yiwei quickly turned the plane and flew back. The Japanese side saw that the other party left with interest, and there was no excessive movement. After all, many times the plane flew across the border in the sky They are all normal. No one can see the national borders on the ground at high altitude. As long as the identity and purpose are notified, they can basically travel from the air.
Yang Yiwei flew back to his own airspace at a speed of up to Mach 30. Yang Yiwei was the first time to fly such a fast aircraft and excitedly made various flying actions in the air, hovering, diving, rolling, and jumping. 、 Rapid ascent turns ... all kinds of actions are operated without pressure, without the power of ordinary fighters. After doing some basic movements, Yang Yiwei wants to do some complicated high-altitude movements, and allows the gradient to circle (large gradient circle) ), Half-rolling upside down, pounding bucket, half-pounding bucket flipping, oblique pounding bucket ... a set of complicated moves to make the next road makes Yang Yiwei more excited, the performance is too good, there is no difficulty at all!
After licking his lips, Yang Yiwei wanted to try some legendary moves. These moves were only on the most famous international air shows, in some of the most powerful countries in aviation, with the best pilots and the best fighters. Actions that are possible after long training are only possible in the United States, the United Kingdom, Russia, and France. These actions have been performed by pilots in four countries, namely, "Pugachev Cobra Maneuver" and "Tailback" 2. The "Book Shelf" maneuver of the British Falcon and the Herbst Pedal Maneuver.
Pugachev Cobra maneuver: The plane maintains a speed of about 400km for level flight. The key is that if the speed exceeds 420km, the flight trajectory will not be maintained. After the nose is pulled up, the aircraft will climb. Too low will result in insufficient upward moment. The pilot closed the angle-of-attack limiter and pulled the lever back to the end. Because the Su-27 rudder surface deflected, the force response was delayed, so it had to be held for a short time. After the nose is lifted up to 60-70 degrees, the flat tail effect completely disappears, and it becomes a part of the drag torque formed by the aerodynamic force and the center of gravity of the aircraft wing. This torque will continue to increase as the angle of attack increases. As a result, the upward moment of the aircraft is gradually reduced. The upward momentum moment disappears completely at the maximum elevation angle. The stalling torque becomes the restoring torque. Level the plane forward. At this time, the pilot's technology will be very important. He must accurately grasp the flight path of the throttle control aircraft. So that Su-27 can continue to maintain the "beautiful" flight line. At this time, the pilot's hand holding the lever was basically useless, whether it was a putter or a drawbar. The aircraft will continue to resume leveling. For its properties, it can be regarded as a continuous response to rough rod operation at lower speeds. Above 45 degrees, the pilot basically has no control over the aircraft. However, when the aircraft is at an angle of 110 degrees, the plane is forced to flatten due to the disappearance of the upward momentum moment, but it can expand people's thinking. That is, if sufficient upward momentum can be obtained at this time. The aircraft will likely continue to tilt back until complete circular motion is completed, and this mission is finally completed by the Su 37.
In the history of this set of actions, only Russian super pilot Pugachev completed the Su 37 fighter jet completely, and it is recognized as an Everest action in aviation flight!
Yang Yiwei quietly adjusted his mentality. As soon as his eyes opened and his maneuvering swiftly, the entire fighter jet turned into a fast-moving cobra. Suddenly he found that the target was ordinary and made a huge offensive action in the air. This action is like a giant cobra!
"Yeah!" Yang Yiwei couldn't help crying out after he finished the action. I didn't expect that I could have the opportunity to complete the Pugachev Cobra maneuver in my life. It was too exciting if it was to be written into history. , I should be the first person in China to make Pugachev Cobra maneuver!
"Next, tail punch!" Yang Yiwei put the stimulant on the Buddha. Without any trace of the fatigue caused by the difficult flight, he quickly adjusted the fighter plane, and a tail punch description on the textbook emerged in his mind.
Tail rush, as the name implies, means that the tail of the aircraft rushes forward. Of course, no one thinks that it is an airplane that can also fly in the front. The process is: after the aircraft has accumulated sufficient speed, the nose is pulled up to jump, but at the same time the engine is artificially in a slow state, so that the aircraft's thrust-to-weight ratio is less than one. Due to the gravitational force of the earth, the speed of the aircraft continues to drop. When the airspeed of the aircraft is zero, the aircraft keeps its nose up, its tail down, and "rushes" at an acceleration rate. The aircraft's dynamic pressure is very small, and it almost falls under gravity. Seems like the tail is rushing forward, so it is called "tail rushing". The aircraft's air intake also became autonomous. The aircraft engine must take some auxiliary measures, such as opening the auxiliary intake valve, continuous engine ignition and so on. To prevent flameout. After the plane descended a certain distance, the fuselage leaned forward, entered a dive state, and finally recovered by level flight. To prevent overturning, the aircraft must maintain a symmetrical fall without sideslip. Because the tail of the aircraft is ahead, the aerodynamics of the flat tail will change from negative lift to positive lift. This produces a moment that tilts the nose down. Force the aircraft into level flight or dive. The success and beauty of the action depends to a large extent on the performance of the aircraft and the skill and guts of the pilot. That is, the aircraft must be free from sway during the descent. The more you dare to enter the speed, the lower the high point, the better the viewing effect on the ground.
The dragon 30 fighter driven by Yang Yiwei was very fast. In order to prevent accidents caused by too fast speed, he reduced the speed to about Mach 15 for safety reasons, followed by a series of dazzling movements. The fighter jet suddenly pulled his head straight up to release the rocket launched by the Buddha. Generally, after the tail is turned off, the engine is turned off, and the plane launches the launching rocket upside down, as if the tail is flying downwards, watching the height drop sharply. Normal flight resumed.
"Yes!" Yang Yiwei clenched his fists. In fact, the most important test of the tail thrust was not the level of the pilot. It was more of a test of the performance of the fighter. Instant flameout and instant start. "Perfect! Perfect!"
If the first two actions are more often used for air show flight recognition and test of the level of fighters and pilots, the "Book Shelf" maneuver and the Herbst "Pedal" maneuver of the British 飞机 aircraft are very common in air combat. Actions with actual combat effects can often achieve very obvious advantages and decisive victory in air combat.
"Bookcase" maneuver for British 鹞 aircraft. Utilizing the steerable thrust of Pegasus engine, the fuselage can be panned and suddenly raised on the basis of the aircraft's longitudinal axis basically maintaining the original direction. Looking from the front, the aircraft is like drawing a "book shelf" on a blue sky. shape. During the British and Ama battles, the British Navy seduced the Afghan Air Force into its special air combat mode. Utilizing this special unconventional aircraft power of the sea slug type and the advanced attacking AIM-9L missile at that time successfully dominated the airpower over Ma Island. Unlike the famous Russian maneuvering in the same plane, the maneuvering range of British aircraft directly spans vertical or horizontal planes. It is very easy to fall off the opponent to track or lock the opponent. At the same time, when attacking, the nose can be easily pointed at the opponent, and the enemy can fire and master the initiative.
Herbst's "Pedal" maneuver: After entering the high-speed flight, the aircraft is pulled to an angle of attack of about 70 degrees (Note: Controllable state). The thrust is transformed by vector thrust, and the aircraft is controlled by the corresponding airfoil Half-rolled, quickly turned 180 degrees, and then the putter reduced the angle of attack to accelerate to the initial high speed. This action overcomes the disadvantages of increasing the overload and requiring a large circle distance in the past. The whole action is like a swimmer who quickly flips on the wall of a swimming pool, hence the name. Because its maneuvering radius is only 175 of the normal circle radius, the aircraft's alertness is greatly improved. Has a very large role in air combat.
Yang Yiwei silently read the textbook. There was no trace of relaxation in his hands. A series of movements were continuously made. The fighter suddenly rose vertically in the air and then immediately moved to the right and then instantly to the right, then to the left and continued. After several translations, Yang Yiwei slowly took a breath, calmed down his excitement, slowly pulled the plane up to 70 degrees, then stepped on the throttle, accelerated instantly, and then pulled the lever quickly, the plane seemed like a swimmer touching At the edge came a high-altitude carp turning over, and then several carps turned over in succession.
"Cool! It's so cool! I have been flying for a lifetime, and I have never been so happy today. I have never done anything before, and I have done it several times in a row, refreshing every time!" Yang Yiwei's entire face became red and red because of excessive excitement and congestion!
Soon after, the speed-reducing Yang Yiwei flew over the airport under the guidance of the ground radar. He reduced the speed to the speed of the normal aircraft, made several moves that were just done very coherently a few times, and put the people waiting below. He was staring blankly!
"Pugachev cobra maneuver ..."
"Backlash"
"Hebst Maneuver"
"The" Bookcase "Maneuver of a British Wing Aircraft"
Among the people below, there are many people who know the goods. Every one of them has been recognized by everyone. Others have heard these legends from the books, and the people who know the goods have exclaimed loudly. These moves are amazing!
"Inconceivable! It wasn't really surprising to me to be able to make these actions. I was surprised that I was able to do these actions quickly and very consistently in the air. It's incredible, it's incredible!" An Air Force lieutenant general used three incredible to express his inner shock.
Soon, the fighter slowly reduced its speed, finally suspended in the air, slowly reduced its altitude, opened the landing gear, and landed on the ground very smoothly without any trace of sliding.
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