Military Review

Experimental aircraft Su-47 "Berkut"

At the end of the nineties and the beginning of the two thousand years, the C-37 Berkut, which later received a new Su-47 index, became the highlight of the program of Russian air shows. The unusual appearance of the aircraft associated with the use of the backward-swept wing (KOS) attracted the attention of all people associated with aviation or just interested in her. The excitement surrounding the S-37 project, often called the main reliable domestic combat aircraft, was in no way inferior to the later disputes and discussions of the current PAK FA program. Experts and aviation enthusiasts predicted the development of the Sukhoi firm a great future and tried to predict how effective it would be in the army. However, more than 47 years have passed since the first flight of the Su-15 aircraft, and the Russian Air Force has not received serial fighters based on this project. Only after several years of heated discussions in the mass consciousness did the understanding of the fact that the S-37 aircraft was purely experimental and from the very beginning not be considered as the basis for the military equipment of the near future was confirmed. Nevertheless, a number of nuances of the Berkut project remain secret until now, which sometimes leads to the resumption of disputes.

Privacy mode

The first prototype of the C-37 took off the 25 of September 1997 of the year. However, the existence of a secret project became known earlier. Back in 1994-95, the foreign aviation press wrote about the development of a promising Russian fighter. Western journalists cited the alleged name of the development - C-32. In addition, in some publications, suggestions were made about the interesting technical features of the project. According to the cited information, the new C-32 should have a reverse sweep wing.

As it turned out, foreign aviation journalists were partially right. Confirmations of their assumptions appeared in early 1996. Then the publication "Herald of the air fleet"Published a photograph from a meeting of the Air Force Military Council. In addition to representatives of the aviation industry and the air force, it was attended by two small aircraft models. In one of them, the well-known Su-27M fighter was quickly identified, and the second caused a lot of questions. The black model with white “32” on board had a front horizontal tail and, most importantly, a characteristic wing of the reverse sweep. A few months after this publication, diagrams and drawings made on the basis of the existing photograph appeared in the foreign press.

It should be noted the official reaction of the company "Sukhoi". Representatives of the design bureau answered the same about all questions about the fighter project with CBS: no work in this direction is underway. As it turned out later, such answers, more like excuses, were due to the secrecy regime. As for the classified works themselves, they started in the early eighties.

On the way to "Berkut"

In the late seventies and early eighties, the leadership of the Air Force, together with the State Committee on Aviation Engineering at the USSR Council of Ministers (GKAT), reflected on the state of the aircraft fleet in the following decades. In 1981, the I-90 program was launched, the purpose of which was to determine the appearance and development of the “Fighter of the nineties”. The head office in the I-90 project was the design bureau for them. Mikoyan. Sukhoi Design Bureau was able to convince the industry leadership that the existing Su-27 aircraft has great modernization prospects and therefore the organization may be engaged in other projects.

New General Designer KB them. Sukhoi M.P. Simonov, appointed at the beginning of the eighties, suggested, nevertheless, to launch a new fighter project, but to lead it on his own initiative. The last nuance of the project was probably due to the desire of designers to engage in a promising, but ambiguous topic, which could not give any practically applicable results. In an airplane with the symbol C-22, it was proposed to use a forward swept wing. In comparison with traditional designs, it had several significant advantages:
- greater aerodynamic quality when maneuvering. This is particularly pronounced at low speeds;
- a large lifting force in comparison with the wing straight sweep of the same area;
- the best working conditions of mechanization, which leads to improved landing characteristics and controllability;
- Slower stall speed compared with straight sweep wing and better counter-stub characteristics;
- the displacement of the power elements of the wing closer to the tail of the fuselage, which allows you to free up volumes for cargo compartments near the center of gravity of the aircraft.

Experimental aircraft Su-47 "Berkut"

These and other advantages of KOS made it possible to create a new fighter, the characteristics of which would be significantly higher than those of the traditional aircraft. But, as always, the advantages were accompanied by serious drawbacks and problems that were to be resolved in the near future. The backward swept wing posed the following questions to the designers:
- elastic wing divergence. KOS at certain speeds begins to curl, which can lead to its destruction. The solution was to increase the stiffness of the wing;
- weight of the structure. A sufficiently rigid wing made of materials available at that time was too heavy;
- frontal resistance. With a further increase in speed, the rather rigid wing of negative sweep faces new problems. The specific nature of the flow around the wing leads to a noticeable increase in drag in comparison with the characteristics of the wing with straight sweep;
- offset aerodynamic focus. At high speeds, the aircraft with the CRP is forced to more actively carry out longitudinal balancing.

Only the solution of all these problems directly connected with the reverse sweep of the wing could have a positive effect in the form of the advantages described above. Designers under the leadership of M.P. Simonova engaged in finding solutions.

Already in the early stages of the C-22 project, the main technological solutions were determined, which were later applied to the C-37. A wing of sufficient rigidity was proposed to be made with the widespread use of carbon-reinforced plastics. The number of metal parts reduced to a minimum. In addition, the wing was equipped with advanced mechanization with deflectable toes, designed to optimize the flow at high angles of attack. The shape of the C-22 aircraft was determined by the mid-eighties. It was a single-engine fighter with an aerodynamic "duck" scheme. Perhaps by the end of the decade, the C-22 could have made its first flight, but there was no suitable engine in the Soviet Union. All available aircraft engines did not give the required thrust-to-weight ratio.

Studies have been conducted for a possible change in the project for a new engine from among the existing ones. These works ended without much success: the plane still remained too heavy for the available engines. In this regard, based on the C-22 began to design a new aircraft C-32. The aerodynamic features of the C-32 almost completely corresponded to the previous project, but a new power plant was used. Two TRDDF RD-79М with 18500 kgf could provide sufficient weight for the heavy weight machine. Moreover, the calculations showed that these engines were able to provide the C-32 with a long flight at supersonic speeds without the use of an afterburner.

In the 1988 year, due to the deteriorating economic situation in the country, the C-32 project was almost closed, but the command of the Navy stood up for it. The admirals familiarized themselves with the design characteristics of the prospective aircraft and demanded the creation of a carrier-based fighter at its base. Within a few months KB them. Sukhoi created the project Su-27KM. In fact, it was a significantly modified C-32 glider equipped with Su-33 equipment and armament. According to the project, the car had a maximum take-off weight at the level of 40 tons, which, using RD-79M engines, did not allow aircraft-carrying cruisers to take off from a springboard like the Su-33 did. To solve this problem was proposed so-called. ballistic takeoff. The essence of this technique was that the lack of speed at separation from the springboard was compensated for by the height and characteristics of the backward swept wing. Thanks to KOS, losing several meters in height, the plane could pick up the required speed and go into horizontal flight. Aircraft with a straight swept wing could not use a ballistic take-off, since insufficient lift and horizontal speed would surely lead to a fall into the water.

The Su-27KM multipurpose carrier-based fighter (later C-32), designed by the OKB Design Bureau. P.O. Sukhoi to equip the Soviet aircraft carrier projects 1143.5 ("Kuznetsov"), 1143.6 ("Varyag") and nuclear 1143.7 (head - "Ulyanovsk"). After the collapse of the USSR, the Su-27KM project in the form of creating a combat fighter was discontinued due to the collapse of the construction of aircraft carriers and financial problems that had arisen, and the topic was transformed into a research paper on the study of the backward swept wing (CBS), during which the copy for static strength tests was completed to the experimental aircraft S.37 "Berkut", now known as Su-47 (photo

Project C-37

The deteriorating economic situation in the country did not allow the Navy to get a promising carrier-based fighter. In plans for them. Sukhoi included the construction of several prototypes of the Su-27KM, but the termination of funding did not allow it. In the early nineties, aircraft manufacturers decided to continue research on the theme of the forward-swept wing, using existing developments. The next project was designed to combine all the achievements and technical solutions, adjusted for financial problems and the state of the aviation industry. The project was named C-37.

First of all, it should be noted that the reduction in funding and the return of initiative status to the project affected the number of planned prototypes. It was decided to build only one prototype. According to some sources, the built glider was first sent to static tests, where, using the most modern techniques, its actual strength was evaluated. In this case, no destructive loads were attached, and all impacts corresponded to the calculated operational ones. This has significantly reduced the cost of the project through the construction of additional gliders. After static tests, the first glider was upgraded to the state of a full-fledged aircraft.

Ready experimental aircraft C-37 "Berkut" is interesting both for specialists and for the general public. The attention of the first is attracted by the applied technologies, the second - by the unusual appearance and the declared possibilities. From the aerodynamic point of view, the C-37 is an integral longitudinal triplane with a high-flying backward-swept wing. The front and tail horizontal tail are made all-turning and have a relatively small area. According to some data, the aerodynamic characteristics of the C-37 allow it to reach the angles of attack up to 120 ° and perform the so-called. dynamic braking (“Pugachev's cobra”), however, on testing and in the course of demonstration performances, this opportunity was almost not used due to limitations on flight modes.

One of the main achievements of KB them. The creation of a technology for the production of long composite parts can be considered a dry, Irkutsk Aviation Plant and related enterprises. During the production of large flat parts are formed, which can then be given a complex configuration. Finished parts fit together with the highest precision. The outer surface of the airframe of the C-37 aircraft consists of a large number of similar composite panels, the largest of which have a length of about 8 meters. This minimizes the number of joints and various protruding parts, including fasteners. Ultimately, the use of large composite panels has a beneficial effect on both the rigidity of the wing structure and the aerodynamics of the entire aircraft.

The mass of the empty C-37 plane was 19500 kg, with about 13% being parts of composite materials. Due to the experimental nature of the project, in the design of the aircraft, not only elements specially created using new technologies were used, but also elements already mastered in production and borrowed from other aircraft. For example, the chassis, flashlight and some onboard systems were almost unchanged from the Su-27 aircraft.

The forward swept wing of the C-37 has a cantilever with a sweep along the leading edge -20 ° and -37 ° along the rear. In the root part, the leading edge forms an influx of straight sweep. Pairing the influx and the console with forward and reverse sweeps improved the flow in this part of the airframe. The front edge of the wing is equipped with a deflectable toe, and the rear edge is equipped with a single-section flap and aileron. Mechanization almost completely occupies the edge of the wing. Due to stiffness requirements, the 90% wing structure consists of composite parts. The remaining elements are made of metal and are used in the power kit.

Close to the central part of the fuselage, on the sides of the air intakes, the Su-37 aircraft has a full-circle, horizontal, forward tail of a trapezoidal shape. The tail horizontal plumage is also made of full turn and has a characteristic elongated shape with a large sweep of the leading edge. The vertical tail is similar to the keels of the Su-27 fighter, but has a smaller area. Due to some nuances of the design, it was possible to significantly increase the efficiency of its work, which made it possible to reduce the area.

The C-37 fuselage has smooth lines, and its section is mostly close to the oval. The design of the nose is close to the design of the corresponding airframe units of the Su-27. On the sides of the back of the cockpit are unregulated air intakes. Their shape is formed by a sector of a circle truncated by the side surfaces of the fuselage and the root inrush of the center section from above. On the upper surface of the middle part of the fuselage, next to the root of the wing, there are additional air intakes used during takeoff and landing, or during intensive maneuvering. As can be seen from the shape of the fuselage, the air intakes on the way to the engines are bent, which, among other things, covers the blades of the compressors and thereby reduces the visibility of the aircraft in the frontal projection. On the sides of the engine nozzles on the C-37, there are relatively small fairings, inside which the necessary electronic equipment of appropriate sizes can be placed.

Due to the lack of other suitable engines ready for production, the D-37F30 TRDDF were selected for installation on the C-11 aircraft. These engines are a further development of the D-30F6 used on MiG-31 interceptors. It was assumed that in the future C-37 will be able to get new, more sophisticated engines with more thrust, lower fuel consumption and thrust vector control system. 15600 turbojet engines with afterburner were given an aircraft with a normal take-off weight of about 25,6 tons of fairly high performance. The stated maximum flight speed is 2200 km / h at high altitude and 1400 km / h on the ground. The practical ceiling was determined at the level of 18000 meters, the practical range - 3300 kilometers.

The composition of the onboard equipment of the C-37 aircraft is still not very much known. According to reports, the aircraft is equipped with an electric remote control system, created on the basis of the EDSU of the Su-27. There is also an inertial navigation system with the ability to use the signal of navigation satellites, as well as modern communication systems. To facilitate the work of the pilot, the C-37DM ejection seat, which differs from the serial products of this model, was installed on the C-36 aircraft. The back of the chair on the "Berkut" is located at an angle 30 ° to the horizontal. This helps the pilot to more easily carry overloads that occur during intensive maneuvering. According to some sources, C-37 used controls that were unusual for domestic combat aircraft: instead of the standard central control knob of the aircraft, a small knob was used, located on the right dashboard. The motor control knobs and pedals remained the same, similar to those used on the Su-27.

Being an experimental aircraft, the prototype C-37 did not carry any weapons. However, in the left wing, there was a place for an automatic cannon GSH-301 with ammunition (according to some sources, the test aircraft still got a gun), and in the middle part of the fuselage there was a cargo compartment for armament. As far as is known, during the first tests, the C-37 did not carry any weapons, since the purpose of the flights was to test the flight qualities of the vehicle.

Tests and fame

The first flight of the C-37 (the first prototype, taking into account the possible construction of several cars was called C-37-1) took place on 25 September 1997 of the year. Under the control of test pilot I. Votintsev, the new aircraft spent about half an hour in the air and did not cause any serious complaints. The first series of test flights lasted until the spring of 1998, after which a break was made. For some time, the designers of the firm "Sukhoi" analyzed the collected information, made the necessary adjustments to the project, modified the car and drafted the program for the next test phase.

For the first time, the C-37 Berkut was shown to the general public only in 1999 at the MAKS international aerospace show. The demonstration could have taken place earlier, at the MAKS-1997 exhibition. In the summer of 97, the experimental machine was already in Zhukovsky and was preparing for tests. There were proposals to show an experimental aircraft in a static parking lot, but the Air Force Command did not approve them. It is worth noting that after two years, the “Berkut” also did not get into static parking. The level of secrecy of the project was such that the only aircraft taxed on the runway of the airfield just before its demonstration flight. After landing, he was towed to one of the hangars, away from the spectator's eyes.

Despite the almost two-year delay in demonstrating the plane to the public, the first information about it appeared in the media a few days after the first flight. The official confirmation of the existence of a new Russian aircraft with KOS produced the expected result - worldwide debates about the features and prospects of the C-37 erupted. An interesting feature of the media coverage of the project was the fact that the “Berkut” was almost immediately declared a promising fifth-generation fighter, which in the very near future will go into series and begin to enter the troops. Statements by the firm "Sukhoi" about the experimental nature of the project hardly made their way through other information noise.

Against the background of a mass of discussions and heated debates, the employees of the Sukhoi company, LII and related enterprises conducted tests of the new aircraft, collecting a lot of important data. The C-37-1 prototype helped to establish the correctness of some technical solutions and showed the fallacy of others. At the beginning of the two thousand years, the talks about the creation of a combat aircraft based on the C-37 were resumed. It was proposed to equip it with a modern complex of onboard radio-electronic equipment, including a forward-looking radar station with a phased antenna array and additional radar to monitor the rear hemisphere. It was proposed to include guided and unguided rockets and bombs, which he could carry on the internal and external suspension, as part of the armament of the promising fighter.

Naturally, all attempts to create a combat aircraft based on the experimental "Berkut" did not lead to any result. Sukhoi continued to use a single prototype for purely research purposes, occasionally showing it at trade shows. So, for example, at the MAKS-2001 cabin, the C-37-1 aircraft was first shown under the new name - Su-47. The reasons for this change were dictated, first of all, by drawing attention to the project. The letter “C” in the practice of the firm “Sukhoi” was always assigned to prototype machines, and the finished aircraft received the index “Su”. The name change did not affect the test program.

Tests of the C-37-1 or Su-47 aircraft continued for several years. The aircraft was tested at different speeds and flight modes. According to some reports, the active testing of the Berkut’s capabilities has led to some problems with various design aggregates. For this reason, at the end of the first stages of the test, restrictions were imposed on the maximum flight speed, angle of attack, etc.

The C-37 / Su-47 “Berkut” project allowed Russian aircraft manufacturers to test several important ideas and collect a wealth of information about airplanes with a backward-swept wing. The obtained information about the nature of the flow and the behavior of the aircraft with the WWTP on different flight modes allowed the domestic aviation science to close several white spots in the theories. By the middle of the last decade, the only prototype of the “Berkut” carried out all the planned flight programs and got into the parking lot.

It should be noted that after the end of the main test program, the Su-47 had a chance to participate in another research work. Since it was the only domestic aircraft that had the dimensions of a fighter, but was equipped with an internal freight gate, it was chosen as a platform for testing some elements of the future T-50 fighter (PAK FA program). In the 2006-2007, the Berkut received a new cargo compartment, designed by the T-50 project. The purpose of this refinement was to check the valves and internal equipment of the compartment for performance in real flight conditions. Su-47 with such a cargo hold made about 70 flights with open doors. Interestingly, the flaps of the first test compartment were opened and fixed still on the ground. In 2008-2009, the Su-47 received an updated volume for payload with sash opening mechanisms. In 2009, 25 flights were performed with flaps opening.

As far as we know, Su-47 was used as a stand not only for the shutters of the cargo compartment. During the new tests under the PAK FA program, he carried weight imitators of promising guided missiles. The information obtained during the new test flights of the Su-47 aircraft was actively used in the final stages of creating cargo compartments of the promising T-50 fighter.

Unequivocal result

The first prototype of the C-37-1 aircraft began to be built two decades ago, took off in the 1997 year and was actively tested until the first half of the two thousandth. The project of the aircraft with the wing sweep closed a few years ago. The experimental aircraft showed everything that it was capable of and allowed it to collect the maximum necessary information. Moreover, the Su-47, which was only mistakenly considered a fifth-generation fighter, became a flying laboratory for developing new technologies related to the armament of promising aircraft.

The participation of the aircraft in important experiments and trials partly adversely affected the possible shows of the general public. Su-47 regularly participated in air shows in Zhukovsky until the middle of the last decade, but never got to static parking. All demonstrations consisted of demonstration flights. Experts and the interested public have not been able to look closely at an interesting, but almost no practical perspective plane.

Despite the long-term completion of the project, disputes about the pros and cons or prospects of both the Su-47 aircraft and the entire class of aviation technology with a backward-swept wing still remain. Over and over again, the pros and cons of the WWTP, projects of airplanes with it, etc. are discussed. There is still no consensus about the prospects of aircraft like the Su-47. As for the Berkut project itself, it should be considered successful. Although the Su-47 and did not become the basis for promising fighters, surpassing all the modern technology in its characteristics, he did everything that was intended for. C-37 / Su-47 was created as an experimental aircraft for testing new technologies. He coped brilliantly with this task, and the role of the newest combat aircraft with unique characteristics must be taken on by other designs.

Based on:
Ilyin V.E. Combat aircraft of Russia of the XXI century. - M .: Astrel / AST, 2000
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  1. Nova
    Nova 16 September 2013 07: 57 New
    I saw him at the AviaMAX. Handsome man!
    1. Vashestambid3
      Vashestambid3 16 September 2013 08: 32 New
      Exotic article about an exotic fighter !! At one time he was a mystery and even a king !! LOL AUTHOR Cross Air Force !! smile
    2. xetai9977
      xetai9977 16 September 2013 08: 36 New
      I read about this plane back in 1999 in the "Technology of Youth" magazine. But even then it was called a "flying laboratory", an aircraft with an "unclear perspective"
    3. Civil
      Civil 17 September 2013 07: 03 New
      You can say soo 47 is the father of PAK FA
  2. Nukem999
    Nukem999 16 September 2013 08: 13 New
    1. FireFly
      FireFly 16 September 2013 11: 14 New
      Clearly. It turns out that the Su-47 is yet another "catching up and overstretching". In this case, the American X-29.
      1. Nukem999
        Nukem999 16 September 2013 12: 47 New
        x-29 First Flight 1984
        Su-47 "Golden Eagle First Flight September 25, 1997
      2. mr.Man
        mr.Man 16 September 2013 18: 37 New
        Why immediately catch up and overtake Yusovsky's Grumman, maybe the German transporter HFB-320 wanted to catch up? laughing
        Moreover, there was a bunker Junkers Ju 287 (the first flight of the aircraft took place on August 16, 1944) and which was captured at the time by Soviet troops.
        I think the Su-47 worked out as a finished experimental product and will still return to aircraft with CBS in Russia over time, but for now, the results are being analyzed ...
      3. The comment was deleted.
      4. Amapok
        Amapok 16 September 2013 18: 53 New

        "... this is another" catching up and overloading "(c)

        Yeah ..! wink
      5. Truth-lover
        Truth-lover 16 September 2013 21: 31 New
        What really is there! The Wright brothers tried to get ahead.
  3. ReifA
    ReifA 16 September 2013 08: 21 New
    IMHO, more beautiful than the T-50. As I saw for the first time, pride for Russia was bursting smile
  4. Enjoy
    Enjoy 16 September 2013 08: 24 New
    Unique car. I read somewhere that the entire wing of the composites is not able to hold any damage in flight and if, for example, it is shot through, it will immediately crumble from crazy loads.

    Although, why not try a drone on its basis now - the mass will be saved due to the cockpit and the pilot's life support systems.
  5. avt
    avt 16 September 2013 08: 53 New
    In flight, it looks absolutely fantastic!
    1. Apollo
      Apollo 16 September 2013 09: 12 New
      more related footage

      plus infographics
  6. Nitarius
    Nitarius 16 September 2013 09: 08 New
    The plane was created for testing! but why was it yelling at the whole WORLD! oh, these journalists.
    It’s not clear what they earn on bread!
    If only with FLIES to blow out the whole ELEPHANT and Schaub the poor fellow would not burst
    1. loft79
      loft79 16 September 2013 21: 11 New
      Why be surprised smile
      If recently there is only one line on the zomboyaschik: "Life has become better, comrades, life has become more fun" and "Armor is strong and our tanks are fast." Therefore, I do not watch the year 2 (only at a party).
      1. loft79
        loft79 17 September 2013 21: 28 New
        Cool minus, if only someone reasonably answered laughing
  7. Sirs
    Sirs 16 September 2013 09: 22 New
    there wasn’t him, there wouldn’t have been a T-50
  8. Hort
    Hort 16 September 2013 09: 25 New
    but still the S-32 (Su-27MK) was prettier.

    One of the main problems of the reverse sweep wing, as I recall, is the shaking of an airplane in flight, which designers have not yet been able to get rid of
  9. V. Tarasyan
    V. Tarasyan 16 September 2013 09: 55 New
    There is something futuristic about him. Who knows, maybe someday they will return to such a scheme at a qualitatively different level.
  10. novik-rif
    novik-rif 16 September 2013 10: 53 New
    I once had to deal with a radio-controlled model of this aircraft (length 2.72m) for one foreign customer. I didn’t dare to do it directly in the forehead. First, a foam model was made for working out the geometry, technology, and for carrying out test purges (due to the lack of aerodynamic pipes, we agreed to use a ventilation dryer on a grain elevator). After completing all the work, the model was finalized and transferred to one Moscow club.
    The plane is unusual and not so simple.
  11. Serg 122
    Serg 122 16 September 2013 12: 50 New
    The Amers themselves wrote in their magazines as they leaked to Russia the "autumn-secret" data on these aircraft. Issued them as your perspective and merged them. It was revenge for the merger by the Russians of data on the development of "invisible aircraft" carried out in the USSR. And ours have been "experimenting" for almost 20 years ...
    1. Hariva
      Hariva 16 September 2013 21: 27 New
      Yes, they wrote it out of impotent rage. Still would! According to the "leaked" inoperative infe, the Russians managed to build the most beautiful plane of all times and peoples))).
      (and I'm not talking about the appropriateness or effectiveness of the project now) It is simply monstrously beautiful!
  12. Andreitas
    Andreitas 16 September 2013 13: 39 New
    I saw his demonstration flight at MAKS-2001. Impressed.
  13. Yankuz
    Yankuz 16 September 2013 14: 24 New
    Cool plane !!! For how many years I will not stop wondering! Everything about him is perfect! It is necessary to develop this scheme in promising projects. Super article !!! Thank!
  14. Hort
    Hort 16 September 2013 14: 39 New
    in general, we had a lot of super-projects of beautiful airplanes: Il-52, Su-100 (like the American Valkyrie), Myasishchev’s airplanes — these generally looked like spaceships ...
    1. 0255
      0255 16 September 2013 22: 07 New
      in general, we had a lot of super-projects of beautiful airplanes: Il-52, Su-100 (like the American Valkyrie), Myasishchev’s airplanes — these generally looked like spaceships ...

      At least the Su-47 flew for research purposes, he was still lucky. And the T-4 made 8 flights, as if they did not even have time to reach the design speed M = 3. Myasishchev's planes, except for 3M, M-50 and Geophysics, remained on paper or in the form of models. A competitor of "Berkut" in the I-90 competition is in Zhukovsky, nafig nobody wants.
      1. Hort
        Hort 17 September 2013 07: 48 New
        moreover, those that are embodied in metal are exceptionally excellent aircraft. The same "Geophysics", for example.

        And in the photo MiG 1-42, if I am not mistaken? It’s also a cool plane ... But what for nobody needed because of the Sukhoi lobby and the UAC Pogosyanovskaya, presumably
        1. sergey123
          sergey123 26 September 2013 02: 54 New
          when you consider that the best fighter 4th generation in the world is a su-27, then everything is fair
  15. Alexey M
    Alexey M 16 September 2013 15: 04 New
    Dad PAX?
  16. Taoist
    Taoist 16 September 2013 15: 20 New
    At the school I wrote a term paper on aerodynamics, I saw an example of a flying wing scheme with sweptback consoles there. It is nice to see that the thought was correct (we did not hear about the "golden eagle" then). True, in my version, a particular aerodynamic problem was solved - to reduce the flow overflow due to the formation of an artificial vortex and thereby increase the overall stability in transient and supersonic modes ...
  17. King
    King 16 September 2013 15: 34 New
    Unique device. it is a pity that he was not allowed into the series. Another brilliant idea of ​​domestic developers who was ahead of his time.
    1. Internal combustion engine
      Internal combustion engine 16 September 2013 17: 52 New
      The Chinese will launch
  18. Uncle lee
    Uncle lee 16 September 2013 15: 46 New
    Original idea and design. Well done boys !
  19. xomaNN
    xomaNN 16 September 2013 16: 24 New
    Looks like an alien plane wink
  20. Cristall
    Cristall 16 September 2013 16: 48 New
    handsome. It affects the mind like an ugly duckling against the background of white swans.
    He is not like everyone else and like it.
    What about his future, who will tell?
  21. novik-rif
    novik-rif 16 September 2013 17: 51 New
    And I would not bet on either the Su-47 or the T-50. If you want to defeat the enemy - get ahead of your head, and don't catch up with or be equal to him!
    The Americans are very serious guys, and we have a lot of wise men wrecked in our pocket. So, if you invest, then invest in something that will vomit victory for sure.
    1. Cristall
      Cristall 16 September 2013 23: 21 New
      To do this, you need to make light heads be bright and offer them conditions.
      Ehh. reminded me of 1913..also there were a lot of inventions of attempts ... the bureaucracy crushed everything, rarely someone was able to smuggle.
      And in our information age - a bright head will think that it does not belong here and it will be better there!
      Geniuses are piece goods! Eye and eye behind them .. and what can Europeans even keep their geniuses to say ...
      the plane is beautiful - managed to light up in many games, its name is known to many abroad. But he is one and a laboratory.
  22. Rainman_1
    Rainman_1 16 September 2013 18: 14 New
    I hope this car will not be forgotten! and in the future our developers will come up with hope how to change the sweep of the wing at high speeds during the flight !!! just a pity to lose such a plane !!! He is very beautiful))))
    1. 0255
      0255 16 September 2013 22: 12 New
      I hope this car will not be forgotten! and in the future our developers will come up with hope how to change the sweep of the wing at high speeds during the flight !!! just a pity to lose such a plane !!! He is very beautiful))))

      in the late 80s and early 90s there was such a project to replace the MiG-31. If the USSR lived, it could have flown, and not the fact that PAK FA would have been needed then.
  23. silver_roman
    silver_roman 16 September 2013 18: 32 New
    S-37 was purely experimental and from the very beginning was not considered as the basis for military equipment in the near future

    maybe the su-47 project was an attempt to impose an arms race on amers? how they imposed their "SOI" on us!
    interesting of course ....
  24. Azaat
    Azaat 16 September 2013 21: 36 New
    The design of the subsonic "duck" is not new, but it takes some work to translate it into sound. Honor and praise to our designers, the airplane turned out to be beautiful and, judging by the tests, with a good perspective.
  25. studentmati
    studentmati 17 September 2013 01: 33 New
    Experimental aircraft Su-47 "Berkut"

    Swan song of the Soviet school of fighter aircraft ... sad

    At the same time, a good reserve for Russian aviation! good

    The main thing is that politicians would allow to use all the best practices. what
  26. Agent 008
    Agent 008 17 September 2013 04: 31 New
    Guys, why invent something that does not exist in nature: not a single living bird that flies in the sky WILL LOOK BACKWARD ... But nature is not stupid, everything is harmonious! So, when birds fly and see this plane, they probably think: "What kind of" mutant "is flying next to us ...
    1. studentmati
      studentmati 17 September 2013 04: 38 New
      Quote: Agent 008
      Guys, why invent something that does not exist in nature: not a single living bird that flies in the sky WILL LOOK BACKWARD ... But nature is not stupid, everything is harmonious! So, when birds fly and see this plane, they probably think: "What kind of" mutant "is flying next to us ...

      Before the functionality of the bird’s wing, we still have to dance and dance.

      Please note that in certain flight modes, the bird still uses the reverse sweep of the wing to perform "super maneuver" ...
    2. Alex 241
      Alex 241 17 September 2013 04: 51 New
      Guys, why invent something that is not in nature: not a single living bird that flies in the sky has wings to the BACK SIDE [/ quote] Here you are wrong.
      1. studentmati
        studentmati 17 September 2013 04: 53 New
        Quote: Alex 241
        You are wrong here.

        As usual, Sash, a vivid example of the highest quality! good drinks
        1. Alex 241
          Alex 241 17 September 2013 04: 59 New
          My friend, everything is "peeped" from nature drinks
          1. studentmati
            studentmati 17 September 2013 05: 03 New
            Quote: Alex 241
            My friend, everything is in nature "spied" drinks

            Ordinary experimenter! And where to go to him, who will feed the family?
            1. Alex 241
              Alex 241 17 September 2013 05: 07 New
              Mustache is insured by Sash. Well, it’s just for the mood, my friend. "First on the Moon" laughing
              1. studentmati
                studentmati 17 September 2013 05: 11 New
                Quote: Alex 241
                Mustache is insured by Sash. Well, it’s just for the mood, my friend. "First on the Moon" laughing

                About insurance - who knows? But my own goat with milk, as I understand from the "wine bottle" is much more important.
                1. Alex 241
                  Alex 241 17 September 2013 05: 13 New
                  Reinforced concrete laughing ...........
                  1. studentmati
                    studentmati 17 September 2013 05: 18 New
                    Our Motherland protects us! And why and why, it’s worthless for officials to know.
                    1. Alex 241
                      Alex 241 17 September 2013 05: 22 New
                      Homeland is the Flag, family, and friends, not the Kremlin wall. And we will stand for the Homeland!
                      1. studentmati
                        studentmati 17 September 2013 05: 24 New
                        Quote: Alex 241
                        Homeland is the Flag, family, and friends, not the Kremlin wall. And we will stand for the Homeland!

                        Absolutely correct comment! drinks
    3. Hoist
      Hoist 17 September 2013 05: 48 New
      I wonder what bird picks up speed in the air with, say, paws or a tail? The mechanics of movement in the air between birds and aircraft are different, so it makes no sense to compare the wing of a bird and the wing of an airplane.
      1. studentmati
        studentmati 17 September 2013 06: 01 New
        Quote: Izar
        The mechanics of movement in the air between birds and aircraft are different, so it makes no sense to compare the wing of a bird and the wing of an airplane.

        The mechanics are different due to technology imperfections.
    4. postman
      postman 17 September 2013 19: 17 New
      Quote: Agent 008
      what is not in nature:

      - wheel
      - propeller (screw, turbine)
      - nuclear reactor
      - ICE
      / probably you need all this poher..b, maybe in nature there isn’t she
      Quote: Agent 008
      nature is not stupid, everything is harmonious in her!

      1. FlyEngine
        FlyEngine 25 December 2016 05: 43 New
        "Since there is no such thing in nature, then there is no need to try" - nonsense of stone people.
  27. 006 Feliks
    006 Feliks 17 September 2013 04: 44 New
    Our specialists are not so stupid as they used to think about them! All the data obtained during the test is very valuable material not only for the creation of the PAK FA, but this data (in my opinion) will be useful for creating the airplanes of the future! And for the Su-47, special thanks, a truly amazing plane, there are probably not many indifferent to this !!
  28. Agent 008
    Agent 008 17 September 2013 05: 32 New
    Dear alex 241, judging by the photo, the birds unfold their wings in the opposite direction in a certain mode, that is, in the photo they slow down and grab prey, apparently it is more convenient for them ... But in normal flight mode, it seems to me that they have wings, say so the "fold" in the middle, but then they take the correct shape back ... Sorry for such a tricky answer ...
    1. studentmati
      studentmati 17 September 2013 05: 38 New
      I apologize for wedging in, but the first photo shows braking, and the second one takes off at "critical" angles. This is exactly the case for a short takeoff with a forward swept wing. Although, in fact, we have not yet achieved such aerodynamics, to put it mildly.
  29. Ruslan
    Ruslan 17 September 2013 07: 42 New
    beautiful car. I wonder what would be a full fighter for this project? and he has invisibility at some angles. I heard several times that at the air show he disappeared from radar during flights.
  30. Cormorants
    Cormorants 18 September 2013 11: 53 New
    Beautiful plane!
  31. R100
    R100 20 September 2013 04: 56 New
    Beautiful bird. It is a pity that this circuit does not work. Huge front fenders indicate that it is difficult to balance this design.
  32. iConst
    iConst 25 September 2013 10: 25 New
    Quote: Taoist
    ... increase overall stability in transient and supersonic modes ...

    In fact, CBS was one of the main goals of instability. The concept of an unstable fighter for maneuverable combat was tested.

    The fact is that earlier (before the sufficient development of automation systems) aircraft (and combat) were designed according to "stable" schemes for manual control. The flip side was a decrease in the maneuverability of the device - it was necessary to overcome the "resistance" of the scheme to return to a stable flight.

    Now automation takes care of the stability of an unstable fighter (we are talking about maneuverability) - i.e. compensates for this instability. Only the maneuver depends on the pilot.

    Profit of unstable scheme - higher maneuverability of the aircraft. Another question is how much it is needed in the light of modern trends in warfare.
  33. Alex666
    Alex666 26 September 2013 16: 56 New
    What is the use of creating something new in a single copy?
  34. Alex666
    Alex666 26 September 2013 16: 56 New
    What is the use of creating something new in a single copy?
  35. Chrysolite
    Chrysolite 10 October 2014 12: 44 New
    Unity with nature: Nugget SU 47
  36. Metlik
    Metlik 29 December 2014 21: 47 New
    If you remake it into a vertical take-off and landing airplane, there will be an almost perfect marine fighter.