Chapter 37, Pugachev Cobra
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"I'm rubbing, why did you fly to Japan all of a sudden!" Yang Yiwei hurriedly turned the plane around and flew back, and the Japanese side saw the other party's interestful departure, and did not make too many moves, after all, it is normal for the plane to fly over the national border in the sky many times, and no one can see the national boundary on the ground from a high altitude, as long as the identity and purpose are notified, they can basically travel from the territorial air.
Yang Yiwei piloted the plane at a speed of up to Mach 30 and quickly flew back to his own airspace, Yang Yiwei was the first time to fly such a fast plane, excitedly making various flight maneuvers in the air, circling, diving, rolling, jumping, sharp rise and turn...... After doing some basic actions, Yang Yiwei wanted to do some complex high-altitude actions, allowing slope circling (large slope circling), half-roll reversal, catty bucket, half-catty bucket flipping, oblique Jin bucket... A set of complex movements to do the next road made Yang Yiwei even more excited, the performance was so excellent, there was no difficulty at all!
Licking his lips, Yang Yiwei wanted to try some legendary moves, these actions are only possible to make after a long period of training at the most famous international air show, several countries with the strongest aviation strength, with the best pilots and best fighters, and these actions have only been made by pilots in the United States, Britain, Russia and France, that is, the 'Pugachev Cobra maneuver', the 'tail rush', the British Harrier's "bookcase" maneuver, and Herbst's "kicking the wall" Mobile.
Pugachev Cobra maneuver: the plane maintains a speed of about 400KM for level flight. THE KEY IS THAT AT SPEEDS ABOVE 420KM, THE FLIGHT TRAJECTORY WILL NOT BE MAINTAINED, AND THE AIRCRAFT WILL CLIMB AFTER THE NOSE IS PULLED UP. If it is too low, it will lead to insufficient upward torque. The pilot turned off the angle of attack limiter and pulled the rod back to the end, because there was a lag in the reaction of the force after the deflection of the Su-27 rudder surface, so it had to be held for a short time. After the nose of the aircraft is raised to 60-70 degrees, the flat tail effect completely disappears and becomes part of the resistance torque formed by the aerodynamic force and center of gravity of the aircraft wing. This moment will continue to increase as the angle of attack increases. In turn, the upward torque of the aircraft gradually decreases. The uplift momentum completely disappears at the maximum elevation angle. The resistive moment becomes the recovery moment. Flattening the plane forward. At this time, the pilot's technique will be very important, and he must accurately grasp the flight trajectory of the throttle control aircraft. So that the Su-27 can continue to maintain a "beautiful" flight line. At this point, the pilot's hand holding the lever is basically useless, whether it is a push rod or a pull rod. The planes will continue to be leveled. Its nature can be characterized as a continuous reaction to rough tie rod operation at smaller speeds. At angles of attack above 45 degrees, the pilot basically has no control over the aircraft. However, when the plane is at a 110-degree angle, the plane is forced to flatten due to the loss of the upward momentum, but it can expand people's thinking. That is, if sufficient upward momentum can continue to be gained at this time. It will be possible for the aircraft to continue to lean back until it completes a full circular motion, a mission that was eventually completed by the Su-37.
In the history of this set of maneuvers, only the Russian special pilot Pugachev flew the Su-37 fighter jet completely, and it is recognized as the Everest maneuver in aviation flight!
Yang Yiwei quietly adjusted his mentality, as soon as his eyes opened, his subordinates quickly manipulated, and the entire fighter turned into a fast-walking cobra, and suddenly found that the target was general, and drew a huge offensive action in the sky, and this action was a huge cobra!
"Yay!" Yang Yiwei couldn't help but call out excitedly after making the move, he didn't expect that he would have the opportunity to complete the Pugachev Cobra maneuver in his life, it was too exciting, if this was to be written into history, he should be the first person in China to make the Pugachev Cobra maneuver!
"Next, Ozhiro!" Yang Yiwei let go of a stimulant, without the slightest sense of fatigue caused by completing the difficult flight maneuvers, and hurriedly adjusted the fighter, and the description of the tail rush in the textbook came to his mind.
Tail rush, as the name suggests, means that the tail of the aircraft rushes ahead. Of course, no one thinks that it is an airplane that can fly with its tail in front. The process is as follows: after the aircraft has accumulated enough speed, it pulls up the nose and enters the jump, but at the same time the engine is artificially slow, so that the thrust-to-weight ratio of the aircraft is less than one. Due to the gravitational pull of the earth, the speed of the aircraft is constantly decreasing, and when the airspeed of the aircraft is zero, the aircraft keeps the nose of the aircraft continuing to go up, the tail facing down, and "rushes" down at the acceleration rate. The dynamic pressure of the aircraft is so small that it almost falls under the action of gravity. It seems that the tail is in the forward rush, so it is called "tail rush". The air intake of the aircraft also becomes autonomous inhalation. The aircraft engine must take some auxiliary measures, such as opening the auxiliary intake valve, continuous ignition of the engine, etc. to prevent flameout. After descending a certain distance, the fuselage leans forward, enters a dive state, and finally changes out in level flight. To prevent tipping, the aircraft must remain in a symmetrical descent without slip. Because the tail of the aircraft is in front, the aerodynamic force of the flat tail will change from negative lift to positive lift. This creates a moment that causes the nose to fall down. Force the aircraft into level flight or dive. The success and beauty of the maneuver depends to a considerable extent on the performance of the aircraft and the skill and courage of the pilot. That is, the aircraft must be sideways in the descent process. And the lower the speed when entering, the lower the high point, and the better the viewing effect on the ground.
Yang Yiwei's Dragon 30 fighter is very fast, in order to prevent accidents caused by too fast speed, he reduced the speed to about Mach 15 for the sake of safety, and then a series of dazzling actions, the fighter suddenly pulled the head straight up to release the rocket launched by the Buddha, and then the tail turned off, turned off the engine, and the plane put the launch rocket played upside down, as if the tail flew downward, looking at the sharp drop in altitude, Yang Yiwei's hands quickly turned into a phantom, and the fighter ignited instantly, The engine turned into a phantom and resumed normal flight.
βyesοΌβ Yang Yiwei clenched his fists tightly, in fact, the most test of the tail rush action is not the level of the pilot, but more of a test of the performance of the fighter, instant shutdown and instant start, "Perfect!" It was perfect! β
If the first two maneuvers are more often used to praise and test the level of fighters and pilots at air shows, the "bookcase" maneuver of the British Harrier and the "wall kicking" maneuver of the British Harrier aircraft are very effective actions in air combat, and they can often achieve very obvious advantages and decisive victories in air combat.
The "bookshelf" maneuver of the British Harrier. Using the steerable thrust of the Pegasus engine, the fuselage can be translated and abruptly raised on the basis that the longitudinal axis of the aircraft basically maintains the original direction, and when viewed from the front, the aircraft is like drawing a "bookshelf" shape in the blue sky. In the Anglo-Argentine battles, the British Navy lured the Argentine Air Force into the air combat mode in which it excelled. Using this special unconventional engine power of the Sea Harrier and the advanced head-on AIM-9L missiles at that time, it successfully dominated the air supremacy over the Falklands. Unlike the famous Russian maneuver of maneuvering in the same plane, the British plane's maneuver range was directly across the vertical or horizontal plane. It is very easy to fall away from the opponent to track or lock onto the opponent, and at the same time, the head pointing can be easily aimed at the opponent when attacking, and the enemy can fire first and grasp the initiative.
Herbst's "kicking the wall" maneuver: after the aircraft enters the high-speed flight, the aircraft is pulled to an angle of attack of about 70 degrees (note: controllable state) and the direction of thrust is changed by vector thrust, and at the same time, the corresponding airfoil surface is used to control the aircraft to half-roll, quickly turn to 180 degrees, and then the push rod reduces the angle of attack and accelerates to the initial high speed. This action overcomes the disadvantages of the previous overload and the need for large hovering distances. The whole action is like a swimmer quickly kicking and flipping on the pool wall, hence the name. Since its maneuvering radius is only 17.5% of the normal hovering radius, it greatly improves the agility of the aircraft. Has a very large role in air combat.
Yang Yiwei silently read in his heart what was written in the textbook, there was no trace of relaxation in his hands, a series of actions continued to be made, the fighter suddenly rose vertically in the high air, and then immediately shifted to the right instantly, and then to the left, after several translations in a row, Yang Yiwei slowly took a breath, calmed down his excitement, and slowly pulled the plane to 70 degrees, and then stepped on the accelerator, accelerated instantly, and then pulled the lever rapidly, the plane was like a swimmer hitting the edge of a high-altitude carp turned over, Then several carps rolled over in quick succession.
"Cool! It's so cool! I've been flying all my life, and I've never been so cool today, and I've never done it before, and I've done it several times in a row, and it's more refreshing every time! Yang Yiwei's whole face became red because of excessive excitement and congestion!
Soon, Yang Yiwei, who had reduced his speed, flew over the airport under the navigation of the ground radar, he reduced the speed to the speed of a normal plane, and did the few actions he had just done a few more times in a very coherent manner, leaving the people waiting below dumbfounded!
"Pugachev Cobra Maneuver ......"
"Tail Rush"
"Hebst" kicks the wall "maneuver"
"The bookshelves of the British Harrier "maneuver"
There are many people below who know the goods, and all the actions are recognized, and many other people have heard these legends from the book, plus the people who know the goods exclaimed loudly, no matter how stupid they are, they know how powerful these actions are!
"Incredible! I was surprised to be able to make these few movements, but I was surprised that I was able to do these movements in quick succession and very coherently in the air, incredible, incredible! "A lieutenant general from the Air Force used three incredibles in a row to express his inner shock.
Soon, the fighter slowly reduced its speed, and finally suspended in the air, slowly reduced its altitude, opened the landing gear, and landed on the ground very smoothly without a trace of slippage.
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