【SU57】五代戰機蘇-57：出戰烏克蘭，推遲批量生產，隱身性能引爭議|戰鬥民族創造的蘇-57，真的能成爲俄羅斯的主力戰鬥機嗎？

Russia's military development has always attracted international attention , and the country's military achievements are obvious to all. Since the former Soviet Union , many incredible miracles have been created in the military field. After the disintegration of the Soviet Union, Russia is not as good as that. It was brilliant at the time, but it also bears the name of a military power. This time, what we are going to mention is Russia's fifth -generation fighter - Su-57. According to a report by the Russian defense industry on August 11, the Russian Defense Corporation will be in Lu Jun . At the 2022 arms show , the Su-57 fifth-generation fighter will be displayed. As Russia's own "blade" , among the five-generation fighters in the world, Russia 's stealth fighter, the Su-57, is very attractive to the public. A fighter created by the fighting nation Su- The 57's rough expansion has a touch of violent aesthetics . It can destroy all types of targets in the air, on the water, and on the ground in combat at various distances. It can also attack air defense systems, long- range command systems , and air traffic control systems . The functional fighter Su- 57 combines the functions of a fighter and an attack aircraft, and has a high level of control automation and intelligent avionics . Let’s see what’s special about it. The Su- 57 fighter jet was developed from the Russian “PAK FA” plan . On the 11th, it was officially named Su-57 and began mass production four years later . As the existing fifth-generation fighter jet of the Russian Air Force, it has many unique features. Most of the previous fighter jets can only be supercharged in a short period of time. The Su-57 flies at the speed of sound , while the Su-57 can maintain high-speed flight without the use of an afterburner. At the same time, it also has strong maneuverability and an efficient weapon system to achieve supersonic combat. In the shape design, the Su- The 57 adopted a conventional layout with modifications to the aircraft 's flanks to meet new requirements for radar stealth, supersonic cruise , and maneuverability. The original vertical tail of the aircraft was improved to an integral tail with wing-body fusion, and a multi- angled airfoil was installed on the fuselage to limit the echo of the radar incident wave. The main wing was added with a canard and a horizontal airfoil to form The uniform aerodynamic airfoil can better adapt to a wide range of flight envelopes. Of course, there is another design innovation of the Su-57 that is particularly important . In terms of aerodynamic design, the extension of the leading edge of the wing is equipped with a movable edge . The role of the controllable vortex lift The main wing of the Su-57 is triangular, and its sweep angle is 48° , and the sweep angle of the trailing edge of the wing is 10° . The dual vertical tail is also an integral design, with small size and other characteristics, making the Su-57 even in the It can also take off quickly on a short runway, so what about the combat capability of the Su-57 as a fighter? First of all, the Su-57 fighter can carry 10 tons of various weapons , and there are more than ten kinds of the latest weapons specially developed for the Su-57. It includes various types of missiles and aviation-guided bombs , which reflects the number of weapon styles it can use. Secondly, the Su-57 has at least two built-in bomb bays , and the entire weapon bay accounts for 1/3 of the aircraft 's capacity. It is mainly used for loading. Long- range and medium-range air-to-air missiles can also attach smart bombs and missiles without the need for stealth, and the Su-57 is equipped with medium-range air-to-air missiles with a range of 120-130 kilometers. The long -range air-to-air missiles and the ultra- long-range air-to-air missiles with a range of 420 kilometers In addition, the Su- 57 is specially equipped with a 30mm GSh-30-1 aviation cannon. It can be seen that whether it is a weapon Equipment or combat capability, Su- 57 is not generally strong. In Russian-made fighter jets, avionics have always been Russia's "soft underbelly", but the avionics of Su-57 fighter jets have been qualitatively improved compared to before. It is equipped with Jihe The N036 radar designed by the Milov Institute has five electronically scanned array antenna systems combined with two onboard computers to detect targets at a distance of 400 kilometers and simultaneously track 30 airborne targets to 8 of them. In addition , the fuselage of the Su-57 fighter also integrates active and passive radars and optical positioning systems to achieve the "smart skin" function. Not only that, the Su-57 also uses the SH121 radar system , which includes three X-band radars In order to deal with the low detectable targets with low RCS in the X-band, and the Su-57 is also equipped with a new radio reconnaissance and countermeasure system, it can detect the enemy and perform interference without turning on the radar and exposing itself. However, Russia is in the Su-57 aircraft. In the exploration of the vector thrust technology of the body engine, it did not imitate the technical model of the United States, but instead adopted the nozzle steering technology. Due to the directionality of the nozzle steering, the control strength and accuracy of the vector thrust, the effect of the vector thrust generated by the nozzle steering is more effective than the jet flow. The rudder surface is much higher, which has obvious advantages , but the nozzle steering technology is also very complicated. Because the control efficiency of the engine vector thrust is too strong , it is not conducive to software design in the cross-linking with the flight control system. The most prominent problem is that the stability control is difficult. The engine The steering torque formed by the nozzle steering is too large to be balanced by the rudder surface. If the angular velocity divergence is not controlled properly, the angular velocity divergence is fatal. The moment and inertial coupling it generates are enough to cause an aircraft to disintegrate . The biggest point of the Su-57 fighter is that Its stealth performance is often compared with the F-22. Some people dislike the rough workmanship of the Su-57. At first glance , the top and bottom of the fuselage are full of bright screws. Does it really have stealth function? Because the craft of stealth fighters is originally It is the most complicated, and it is best not to leave any gaps. In fact, the stealth of the Su-57 fighter is not as bad as imagined. The detection weapon bay is also built-in to enhance the stealth effect, and the Su-57 adopts a conservative but practical wing traditional layout , which is the best choice for balancing stealth, maneuvering, range, etc., and in order to achieve stealth at the same time It can also maintain supersonic cruise . The horizontal and vertical control surfaces of the Su-57 are smaller. Even though many people criticize the Su-57 , they can still see the shadow of the third-generation Su-27 on its body, but this is not always inherited and coexisted with innovation. In any case , the design of the Su-57 fighter jet further highlights the ability of high-altitude, high-speed and super-maneuverable operations, and still maintains the Russian military's "sixth generation war" idea, highlighting the future mode of warfare for non-contact operations, focusing on the development of long- range precision The application of strike weapons Once the Su-57 is put into use , its "extreme agility" will make the hit rate of some other medium -range air-to-air missiles greatly reduced. In addition , the Su-57 is compared with other fifth-generation aircraft. Another major advantage is its relatively low price. To sum up, the Su- 57 has a supersonic cruise, a comprehensive detection system , and a relatively "decent" stealth performance , "extreme agility" and continuous characteristics . The Western countries will have a major impact on tactics, campaigns, strategies and other levels, but Russia has been sluggish in the actual procurement of Su-57, and the progress is slow. As of June this year, the Russian Aerospace Force has equipped no more than 5 Su- 58s. It can be seen that the Su-57 has not yet entered formal mass production . During the recent Russian-Ukrainian conflict, the Russian army directly sent the Su-57 to the front line and launched two missiles in Ukraine, both of which successfully hit the target accurately. In addition , Russia The Junsu-57 also formed a formation to hunt and kill the Ukrainian air defense system. It proved its worth with actual actions on the battlefield, and it also refreshed the views of the global countries on the Su-57. In any case, the Su- 57 fighter jet was the first time to participate in the war. This is also the first time that a human-made fifth -generation stealth fighter has participated in a high-intensity and large-scale war . The latest news says that the new air-to-air missile developed by the Russian Lightning Design Bureau for the Su-57 is being tested in Russia and is expected to be tested by the end of this year . 57 will be able to carry this new type of missile known as the "stealth record killer". By then, the performance of the Su-57 will also completely surpass the F-22 and F-35 fighters . The fighting ability will be greatly improved again, and it will even have the ability to hunt and kill the fifth-generation fighters of the US military . The hunting operation of the Ukrainian air defense system is just the beginning . The next target is the fifth-generation aircraft of the US military. In the face of such a confident statement from the Russian side, everyone can wait and see. 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