Military Review

With an eye on technology. Fighter F-15EX goes into series

79

The first production F-15EX at the assembly stage


US Air Force and Boeing successfully bring serial model to production aviation technicians. An agreement was signed on the construction of promising Boeing F-15EX fighter-bombers. Work on the construction of the first batch of eight aircraft has already begun.

Production contracts


More than a year ago, it became known that the draft military budget for fiscal 2020 Expenses for the construction of the new F-15EX are foreseen. Then it was planned to order the first batch of eight aircraft worth approx. 1,1 billion dollars. In the future, new contracts were planned, for a total of 144 cars. These items of the military budget were approved and accepted for execution. The signing of the relevant contracts was expected in the near future.

On June 30, the Pentagon published information about a new contract with General Electric related to the construction of the F-15EX. The $ 101,3 million contract provides for the supply of an unnamed number of F110-GE-129 turbojet engines, control systems and spare parts, as well as the installation of products on aircraft and subsequent support. Implementation of this contract will continue until November 30, 2022.

On July 13, an official order appeared for the production of new aircraft. The contract value is $ 22,89 billion; the quantity and timing of equipment supplies have not been determined. So far we are talking only about the first batch of eight fighters, and larger batches will be ordered later, according to the results of current work.

Under the terms of the new contract, the first two F-15EXs should be transferred to the customer in the second quarter of FY 2021. - after January 1, 2021, the remaining six vehicles will be built and commissioned no later than the end of December 2023. It is reported that the equipment of the first batch will be sent to the Eglin air base, where it will undergo tests and other procedures necessary for commissioning.


It is curious that the construction of the first production F-15EX has already started. Together with a press release on the order, the Air Ministry published a photograph from the assembly shop. The aircraft with the number "20-0001" is basically formed, but so far does not have a number of systems and devices, and is also not painted. Boeing still has several months to complete the construction. The assembly of the second machine has also begun, but it has not yet been shown.

Solving Problems


The reasons for the appearance of the F-15EX project are quite simple. In recent years, the US Air Force tactical aviation has faced a number of problems, and not all plans have been implemented. Because of this, a “temporary measure” was needed, which becomes the new F-15EX. It is expected that orders for such equipment will allow to close part of the needs of the Air Force in the medium and long term.

Currently, the US Air Force is facing the problem of obsolescence of the F-15C / D fighter fleet. More than 230 of these vehicles remain in service, but in the coming years they will have to be decommissioned. At one time, a 5-generation F-22 Raptor fighter was considered a full replacement for them, but its production volumes were insufficient. In recent years, managed to establish mass production of F-35 Lightning II fighters, but its pace does not meet the needs of the Air Force in the context of replacing old equipment.

The solution to all these problems (temporary and limited) should be the new F-15EX fighter. It belongs to the “4 ++” generation and is inferior to other techniques in a number of characteristics. Moreover, it is based on a well-developed platform and can be produced quickly and in the right quantities.

Pending Deployment


According to the Pentagon's current plans, 76 new-type aircraft will be acquired as part of the five-year Future Years Defense Program. In the second half of the twenties, production will continue, and due to this, the number of aircraft will reach 144.


With the help of the newly built F-15EXs, they will replace the cash F-15Cs that have exhausted their resources. A complete replacement of old equipment in a one-to-one ratio is not planned. Probably the reasons for this are financial or operational. It is argued that the development of new aircraft will be quite simple and will not take much time.

The latest serial production contract does not specify the exact number of F-15EX and the timing of their production. However, the peculiarities of the production of the first batch suggest that the release of 144 fighters will take several years and will continue until the end of the twenties or the beginning of the thirties. Starting from 2022-23 The Air Force will be able to receive at least 10-15 aircraft annually, which will allow for re-equipment within a reasonable time.

However, in the context of terms and combat qualities, there are some difficulties. So, openly talk about reducing the potential of the F-15EX in the distant future. According to current estimates, as early as 2028, such aircraft could not break through modern air defense and solve combat missions over enemy territory. They will be able to work only in areas with or without limited air defense, as well as on their own territory and near bases. More complex tasks will be assigned to another technique.

However, the F-15EX may get some features that are not available for 5th generation fighters. It is considered as a carrier of promising airborne hypersonic weapons. A fighter-bomber will be able to carry large and heavy ammunition that does not fit in the internal compartments of the F-22 or F-35.

Significant benefits


The F-15EX project proposes the construction of a two-seat multipurpose fighter-bomber with a number of characteristic features and noticeable differences from previous aircraft of the family. The existing glider undergoes minor modifications and is saturated with modern equipment that ensures compliance with current customer requirements.


The key difference of the F-15EX is the use of the open OMS architecture (Open Mission Systems), which provides the ability to quickly introduce new technologies of various kinds. Cabin equipment, sighting and navigation system, remote control system, defense complex, etc. were updated.

According to the results of modernization, the aircraft retains its basic flight performance. The payload still reaches 10,4 tons. It is possible to carry bulky and heavy ammunition up to 6,7 m long and weighing more than 3 tons, such as new hypersonic missiles.

Success and failure


The Boeing F-15EX project has reached serial production, and this is considered a new reason for the pride of American aircraft manufacturers. In the near future, the first aircraft of this type will enter the troops, and then mass deliveries will begin with the replacement of obsolete equipment. Recent contracts allow the US Air Force to be optimistic about the future and expect modern aircraft.

However, not everything is so good and joyful. So, the reason for the appearance of the next F-15 modernization project was the problem of other equipment, including last 5 generation. The promising and highly effective F-15EX is just a temporary measure designed to address the unplanned needs of the Air Force. In addition, this aircraft will remain modern and efficient for only a few years - already in the late twenties its role will change.

Thus, a very interesting situation is emerging. Over the next few years, the U.S. Air Force will receive modern fighters with high performance, but with a different set of circumstances and in the absence of problems in other programs, they could do without the F-15EX - and without additional costs for their construction. It turns out that promising projects of the 5th generation again hit the defense budget.
Author:
Photos used:
US Air Force, Boeing Co.
79 comments
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  1. Tugarin
    Tugarin 15 July 2020 06: 18 New
    14
    All the same, I really like the F-15. Our aircraft recalls.
    1. fider
      fider 15 July 2020 13: 23 New
      +3
      Tugarin (Mikhail)

      All the same, I really like the F-15. Our aircraft reminds
      Who reminds whom is a big question.
      1. Kostya Lavinyukov
        Kostya Lavinyukov 15 July 2020 17: 38 New
        0
        They say that its appearance was influenced by the MiG-25 with its rectangular shapes.
    2. Outsider
      Outsider 27 August 2020 00: 43 New
      -1
      - Why does the USA need one hundred and fifty new F-15s?

  2. Avior
    Avior 15 July 2020 06: 38 New
    14
    The author’s conclusion is strange.
    It turns out that the relatively inexpensive F-15s produce part of the expensive F-22s in exchange, which is a blow to the budget.
    And how to learn how to turn the plot? smile
    1. Grazdanin
      Grazdanin 15 July 2020 09: 07 New
      +3
      Yeah, moreover, these F15EX aircraft are of a different class and they were needed even if there was a larger number of F22, or it was necessary to make a separate modification of the raptor for EX tasks, which would be an order of magnitude more expensive.
      1. Tuzik
        Tuzik 15 July 2020 16: 56 New
        +2
        They had the idea of ​​the F-22B. Probably yes, the money did not grow together. And you can’t sell a raptor.
        1. Grazdanin
          Grazdanin 15 July 2020 17: 01 New
          +2
          The main thing is no sense. It is not necessary to launch satellites and hypersonic missiles because of the horizon, they do not need to launch a stealth. For hypersonic missiles, the F15 2,5-3 speed of sound will be a big plus, instead of 2-2,2 for F22.
          1. bayard
            bayard 16 July 2020 08: 06 New
            +2
            Quote: Grazdanin
            will speed F15 2,5-3 speed of sound

            Forget about 3 Machs, God forbid, to give 2,5 in real conditions - with suspensions and full tanks.
            And the point here is not at all the power of the engines (this will have an analogue of the AL-31F in afterburner maximum power), but in the thermal limitations of the glider. For 3M you need a completely different glider and intensive cooling of the leading edges and the flashlight.
    2. georgje
      georgje 19 July 2020 16: 04 New
      0
      Duc, they release junk conditionally, and billions of investments in new ones are stuck
  3. Eug
    Eug 15 July 2020 07: 26 New
    +4
    And Boeing - at the same time helping to get out of the problems in the civilian sector. Mirroring the situation with the Su-27 - Su-35.
    1. voyaka uh
      voyaka uh 15 July 2020 10: 12 New
      11
      The contract was promoted by the Minister of Defense (already former), who had previously worked at Boeing. Helped former colleagues. But, objectively speaking, the United States faced a shortage of heavy fighters due to the hasty termination of production of the F-22
      1. MMX
        MMX 15 July 2020 17: 13 New
        +7
        Quote: voyaka uh
        The contract was promoted by the Minister of Defense (already former), who had previously worked at Boeing. Helped former colleagues. But, objectively speaking, the United States faced a shortage of heavy fighters due to the hasty termination of production of the F-22


        Further evidence that the current 5th generation cannot fully perform combat missions without the 4th can not.
        1. Outsider
          Outsider 18 July 2020 15: 01 New
          -1
          - They have significantly different tasks, the 5th generation and the 4th work at different stages of the war. Therefore, both are needed. Which continues to be implemented.
      2. Sanichsan
        Sanichsan 16 July 2020 21: 43 New
        0
        Quote: voyaka uh
        The US faced a shortage of heavy fighters due to the hasty termination of production of the F-22

        that is, if the F-22 continued production, then there would be no problem? What is it like? F-22 is not suitable for tasks that are assigned to the F-15EX. you want to say that if you release a lot of F-22, then they can? what
        1. Phoenix
          Phoenix 18 July 2020 10: 24 New
          0
          F-22 was planned to teach to bomb. So yes, the F-22 with some updates would take on all the tasks of the F-15.
          1. Sanichsan
            Sanichsan 18 July 2020 13: 59 New
            0
            Quote: Phoenix
            So yes, the F-22 with some upgrades would take over all the tasks of the F-15.

            if only with the rejection of stealth. and even so, its use is much more expensive than the use of F-15. but for the USA a great option! I agree yes
          2. Outsider
            Outsider 18 July 2020 23: 02 New
            0
            - He knew how from the very beginning. He also has weapons bays adapted for this:
            https://en.wikipedia.org/wiki/Lockheed_Martin_F-22_Raptor#Specifications_(F-22A)
            Air-to-ground mission loadout:
            2× 1,000 lb (450 kg) JDAM or 8× 250 lb (110 kg) GBU-39 Small Diameter Bombs
            1. Sanichsan
              Sanichsan 21 July 2020 13: 09 New
              0
              Quote: Outsider
              He knew how from the very beginning. He also has weapons bays adapted for this.

              what could that? not meet the demands of the military? bully
              Quote: Outsider
              2 × 1,000 lb (450 kg) JDAM or 8 × 250 lb (110 kg) GBU-39 Small Diameter Bombs

              now let's load F-15EX wink perhaps then it will become clear what the military needs and why the F-22 does not pull. request
              1. Outsider
                Outsider 23 July 2020 00: 07 New
                0
                - Load F-15EX - 10.5 tons, F-22 - only two bombs of 454 kg. But the F-22 can take its bombs almost to the very top of the enemies, and the F-15EX can be shot down 300 km to the target ... How much can you spread this? Is the difference still incomprehensible ?!

                1. Sanichsan
                  Sanichsan 23 July 2020 01: 26 New
                  0
                  not ashamed to post such primitive nonsense? lol Do you understand that by appealing to such cheap advertising brochures you put an end to your arguments? request
                  F-22s do not even fly (!!!) over Iran, not to mention Russia with the S-400. he can carry his pitiful less than a ton of load "to the very top of the enemies" only in dreams completely divorced from reality, but in reality the F-22 is kept as far as possible from modern air defense.
                  Russia was not afraid to supply the S-400 to the Turks who were supposed to receive the F-35, which means they are confident that the S-400 can see and hit the F-35 at a distance higher than the F-35's weapons range. The United States was afraid to transfer the F-35 to Turkey under the contract. these are facts. and you have a funny picture laughing
                  and so ... 10 tons on a carrier that knocks down air defense and less than 1 ton on a carrier that also knocks down ... what to choose? what laughing
                  1. Outsider
                    Outsider 23 July 2020 02: 18 New
                    0
                    not ashamed to post such primitive nonsense?

                    - Someday (or maybe never) you will find out that this is not nonsense and will be very surprised! laughing
                    Do you understand that by appealing to such cheap advertising brochures you put an end to your arguments? request

                    - These are not "cheap advertising brochures", these are technologies that are still completely inaccessible to Rosaviaprom. But, alas, already available to the Chinese.
                    F-22 do not even fly (!!!) over Iran

                    - But WHY F-22 now "fly over Iran" ?? There will be a war - it will fly. And not one, but dozens. And hundreds of F-35s.
                    not to mention Russia with the S-400.

                    - But WHY F-22 now "fly over Russia" ?? There will be a war - it will fly.
                    he can take his pathetic less than a ton of load "to the very top of the enemies" only in dreams completely divorced from reality

                    - Each F-22 already takes 8 small diameter bombs GBU-39:


                    And one more thing: it can carry two of these hydrogen bombs:
                    https://en.wikipedia.org/wiki/B61_nuclear_bomb
                    ... but in reality the F-22 is kept as far from modern air defense as possible.

                    - And why ?! laughing lol
                    Russia was not afraid to supply S-400 to Turks

                    - Russia did not bother to supply the Turks with their most advanced air defense system - a NATO member country! Why not deliver (for the same money) this air defense system immediately to the USA? To not arrange an extra gimmick? lol Imagine that the United States began to supply its most advanced weapons to Kazakhstan or Belarus ?! You would say that their "roof has gone"!
                    which should have received the F-35

                    - And who will now receive "ears from a dead donkey."
                    , which means they are confident that the S-400 can see and hit the F-35 at a distance higher than the range of the F-35 weapons. The United States was afraid to transfer the F-35 to Turkey under the contract.

                    - After this "deal" I realized that the Turks are really lumps! Give up hundreds of F-35s and get a S-400 that no one needs ...
                    these are facts. and you have a funny picture laughing

                    - The picture is funny - only for the very ignorant, for the laymen.
                    and so ... 10 tons on a carrier that knocks down air defense and less than 1 ton on a carrier that also knocks down ... what to choose?

                    - 10 tons on the carrier, which the same S-400 knocks down for 300-350 km - and 900 kg on the carrier, which can approach the S-400 at 22 kilometers! The black humor is that the planning range of the eight GBU-39 bombs that each F-22 can carry is 110 km from an altitude of 11 km when dropped at subsonic... For bоhigher altitudes and speeds - the drop range can be increased. When dumping at supersonic and pitching up - increase even more - up to 200+ km! And the S-400 air defense system can only see it from 20 km. That is: the F-22 is guaranteed to destroy the S-400 battery without exposing itself to the slightest danger!
                    Clear?
                    1. Sanichsan
                      Sanichsan 23 July 2020 13: 52 New
                      0
                      no need to continue. you have vividly demonstrated the depth of your beliefs in advertising stories laughing
                      believe further hi
                      1. Outsider
                        Outsider 23 July 2020 14: 37 New
                        0
                        - Generally speaking, these are not "beliefs", this is the usual knowledge of the materiel. What I wish you with all my heart! yes
        2. Outsider
          Outsider 18 July 2020 15: 03 New
          -1
          Of course they can. But hammering nails with a microscope (F-22) is unprofitable, irrational. To do this, it is better to take a large hammer (F-15EX).
  4. smaug78
    smaug78 15 July 2020 08: 33 New
    +6
    Strange article, a little crazy ...
    1. Romario_Argo
      Romario_Argo 15 July 2020 13: 17 New
      -3
      yeah
      complete crap - not sickly so Americans are sawing the budget laughing
      originally planned 12 cars for $ 1,2 billion i.e. 100 million for 1 unit
      and here it’s already 8 for $ 1,1 billion i.e. 137 million for 1
      The USA is economically more profitable and more stable militarily to buy S-400 air defense systems
      $ 1 billion
      We can sell through China, bully - well, not directly wassat
      * Su-35S cost $ 28 million
    2. Outsider
      Outsider 18 July 2020 15: 03 New
      -1
      A normal article is for those who understand.
  5. silberwolf88
    silberwolf88 15 July 2020 08: 49 New
    +2
    A return to the proven solutions was expected for the United States ... the promoted 5th generation is not yet able to fight as it should (I mean the whole cycle, including preparation for departure in different climatic conditions and at different airfields ... the composition of the weapons used) .. Many problems have not been resolved and various improvements have not yet been completed ...
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  6. Grazdanin
    Grazdanin 15 July 2020 09: 03 New
    +8
    however, under a different set of circumstances and in the absence of problems in other programs, they could do without the F-15EX - and without additional costs for their construction


    Could. Because:
    A fighter-bomber will be able to carry large and heavy ammunition that does not fit in the internal compartments of the F-22 or F-35.
    1. 5-9
      5-9 16 July 2020 16: 16 New
      +2
      Ohh .. But in fact there are no external suspensions on 22 and 35, in principle, right? Aki kangaroo, everyone in the bag is dragged, right?
      Fy35 obosratushki, this is obvious in the Pentagon, but denied by Russian-speaking idolaters
      1. Grazdanin
        Grazdanin 16 July 2020 17: 19 New
        -1
        F22 with weapons on suspensions reaches a speed of Mach 2?))
        1. 5-9
          5-9 17 July 2020 08: 54 New
          0
          You might think that these 2 Machs and without external suspensions can reach without consequences for himself.
          And the F-15 is also not at all a fact that it will reach Mach 2 with a hypersonic (nonexistent) fool, or even two ...
        2. Outsider
          Outsider 18 July 2020 22: 56 New
          0
          - If you suspend two GBU-28s on it (they’re suitable for weight on inner pylons),
          http://airwar.ru/weapon/ab/gbu28.html
          then he must develop 2M. The maximum speed mentioned by his former chief test pilot is 2.424M = 2574 km / h.
          These bombs have little resistance.
          1. 5-9
            5-9 19 July 2020 16: 02 New
            0
            He has a magical stealth skin that peels off from this ...
            1. Outsider
              Outsider 20 July 2020 10: 49 New
              0
              - The condition of the casing is constantly monitored.
              1. 5-9
                5-9 20 July 2020 16: 06 New
                0
                Well, it is underway ... Therefore, 2M is released only on July 4, the DR of the general's wife and under cameras for records ...
      2. Outsider
        Outsider 18 July 2020 15: 15 New
        -1
        There are external suspensions on both the F-22 and F-35. But - as an option, "this is not a royal affair" ...


        1. Grazdanin
          Grazdanin 19 July 2020 12: 32 New
          -1
          The question is not whether there are pylons or not, the question is whether the F22 will be able to reach maximum performance with weapons on them. An F15 with Mach 2,5 outboard rockets will come out for sure. This is essential for hypersonic and anti-satellite weapons.
          1. Outsider
            Outsider 20 July 2020 10: 54 New
            0
            - With suspensions, NOBODY EXITS FOR MAXIMUM LTH. Neither the F-22 nor the F-15EX. But on 2M - both will come out - it all depends on the nature of the suspensions, on their resistance. The F-15EX sportcoin can throw a hypersonic missile at a speed of 1.8M-2M and from a height of 15 km - this is quite enough to launch its scrumjet, and if it also has a solid fuel accelerator, then there are no problems at all.
            No 2.5M will be required from him, maximum performance characteristics - measured only with a smooth wing.
  7. Forest
    Forest 15 July 2020 10: 32 New
    -6
    Let them not produce much, museums will not buy much.
  8. A1845
    A1845 15 July 2020 12: 13 New
    +4
    The key difference of the F-15EX is the use of the open OMS architecture (Open Mission Systems), which provides the ability to quickly introduce new technologies of various kinds.
    how annoying is such news about anything
  9. Angelo Provolone
    Angelo Provolone 15 July 2020 13: 53 New
    +1
    many modifications are a sign of a successful car.
    generally interesting aircraft, at least the fact that there are no slats. Always surprised this joke
    1. mmaxx
      mmaxx 15 July 2020 17: 07 New
      +2
      It seems to me that modern fighter jets have long used a deflected toe. But there are no slats for a long time. These things are put on subsonic cars.
    2. Outsider
      Outsider 18 July 2020 22: 58 New
      0
      “It doesn't have a tiltable toe - a legacy of a prototype made almost 50 years ago. But even without this, he somehow managed to become the absolute world record holder in air battles over these decades: 104: 0. laughing
      1. mmaxx
        mmaxx 25 July 2020 19: 44 New
        0
        Interesting. The videos show that the plane has a deflecting air intake. The whole turns up and down. What is buried here? aerodynamics or engine operating conditions? Both?
        1. Outsider
          Outsider 26 July 2020 00: 57 New
          0
          - Both. An identical function is performed by the PCHN (moving part of the influx) in the Su-57:
          1. At low speeds and during maneuvers with high G-forces and high angles of attack, it prevents flow stall in the air intakes by straightening the flow in the inlet devices.
          2. At supersonic, the upper edge is the first cascade for the formation of a shock wave - several shocks and air enters the engine, slowing down to subsonic speed and increasing the pressure after a series of shock waves.
          3. During takeoff / landing, they perform the function of vortex generators, delaying the stall from the root edges of the half-wings => increasing the critical angle of attack => reducing the stall speed.
  10. Afotin
    Afotin 15 July 2020 22: 18 New
    +3
    To this, everything has been going on lately. Programs F-22 and F-35 turned out to be an epic failure, and something to fight. Plus, support for Boeing, which is going to say frankly regrettably.
    1. Outsider
      Outsider 18 July 2020 15: 22 New
      -1
      - "Programs F-22 and F-35 turned into an epic failure" - only in the brains of the most typical imbeciles, brainwashed by state propaganda.
      The program PAK FA / T-50 / Su-57 turned into an epic failure.
      1. CBR600
        CBR600 21 August 2020 11: 09 New
        0
        Where is the failure?
        ... Now tests of this aircraft are ongoing, during which the functioning of its systems, as well as the engine operating modes, are checked second stage.
        Those. there is a second stage engine. And no Indians. It won't take long to check the modes. Dviglo paddy is collected in bundles for testing. Everything is in progress.
        1. Outsider
          Outsider 21 August 2020 13: 41 New
          -1
          - And what about the engines ?? Is there happiness in engines ?! Replace the F22-PW-119 with the F100-PW-100 engines - will it get much worse? NOT. Because with it, its main advantage will remain - an extremely small EPR. And he and with engines from the F-229 will tear everyone "in the tail and in the mane" with astronomical accounts. The main happiness today is not in engines, but in stealth - firstly, and in superior avionics - secondly.
          The Su-57 has neither one nor the other. You have to take it to the museum and start making a new, correct, normal one. Without this pornography, over which the whole world is rolling:


          https://qph.fs.quoracdn.net/main-qimg-9a4666731a84a5e4c5f8db7db09949b4-c
          1. CBR600
            CBR600 24 August 2020 10: 32 New
            0
            https://www.aex.ru/docs/4/2010/9/23/1162/
            This is SU27, as you can see. And the article is not about 57th. And by the way, yes, the photo was replicated.
            1. Outsider
              Outsider 24 August 2020 23: 34 New
              0
              - And you couldn't see the moving part of the influx? lol fool
              And here are the air intakes of the Su-27 family, feel the difference:

  11. Herman 4223
    Herman 4223 16 July 2020 06: 35 New
    0
    As I heard before, the plane is replacing f15 in the national guard. Nobody seemed to be going to break through the air defense on this plane, it is for conducting air combat and replaces the machines intended for this. The series of these machines will probably be larger in the end, in the thirties the question will arise of replacing the f15e.
  12. Narak-zempo
    Narak-zempo 16 July 2020 08: 49 New
    +1
    Hmm. In F-22 they can’t, in F-35 they still can’t (or just can’t, without "yet).
    But they screwed the next whistles with the ancient F-15 and announced that they could laughing
    1. Selevc
      Selevc 16 July 2020 15: 52 New
      +2
      However, not everything is so good and joyful. So, the reason for the appearance of the next F-15 modernization project was the problem of other equipment, including last 5 generation
      What are you saying ??? On the Internet everywhere and here, including almost every day, there are brave reports about the great and powerful F-35 !!! What problems ??? Why upgrade the design 50 years ago ??? All bubble F-35 burst and deflates ???
      1. Sanichsan
        Sanichsan 16 July 2020 21: 55 New
        +1
        Quote: Selevc
        All bubble F-35 burst and deflates ???

        of course not! This item is selling great! well ok .. not very good ... what
        but why shout about it. let them do it! better let the F-35 sculpt than something practical wink
      2. Outsider
        Outsider 26 July 2020 01: 06 New
        0
        - The F-15C / D and the F-15E have a resource, it remains a lot. Fighter planes are in short supply in the US Air Force.
        1. It will cost $ 22 billion to restart the F-50 production line just to resume production of the F-22, and the F-15EX production line is in full swing and does not require any additional investment.
        2. F-22 - an aircraft intended for the Third World War, which does not exist and is not particularly foreseen. Its latest cost (net) is $ 153 million per unit. The F-15EX costs almost half, $ 87 million.
        3. F-15EX is much cheaper to operate, it does not need to constantly monitor and correct the RPM condition.
        4. The F-15EX takes up to 10.5 tons of weapons, and its high-altitude and speed characteristics are not inferior to the flight characteristics of the F-22.
        5. Of course, the F-15EX is not an analogue of the Su-35, it is much better - avionics, first of all.
        6. Having a fleet of F-22 + F-35, the sweetest thing to do is to use the F-15EX as a "third wave" aircraft (the first - the CD and BR, the second - stealth), for a massive cleanup of the theater, after the first two have worked there ... Moreover, with any enemy - even with a third world country, even in local clashes with Russia.
        With China, everything is more complicated here - China also has stealth, production has begun 500 J-20, here the American stealth will have to work much more.
  13. Outsider
    Outsider 20 July 2020 10: 57 New
    0
    Quote: A1845
    The key difference of the F-15EX is the use of the open OMS architecture (Open Mission Systems), which provides the ability to quickly introduce new technologies of various kinds.

    how annoying is such news about anything

    - Actually, open architecture on American aircraft has been practically obligatory for many years - they always leave a reserve so that they can then cram a few more blocks of avionics, which may appear in 5 years, 10 years, 20 years!
    This is not news at all, it is commonplace.
    1. Gust
      Gust 26 August 2020 11: 02 New
      0
      As for advertising pictures, as a "knowledgeable materiel", a huge request to you to enlighten how exactly such a line of attack of the S-400 F-35 is implemented ???
      1. Outsider
        Outsider 26 August 2020 14: 16 New
        0
        - "Elementary Watson!" There is a formula for the detection range of a specific target by a specific radar.

        Knowing this data, it is possible to determine at what range such and such a radar will detect a target with such and such an RCS.
        There is a simplified way: knowing at what range a given radar detects a standard target (for example, with RCS = 1 m²) and knowing the RCS of the target under this angle, you can also determine the detection range of this target by this radar.
        Let's take the data of the most sophisticated complex:
        http://pvo.guns.ru/s300v/s300v.htm
        http://pvo.guns.ru/s300v/s300v_2.htm
        The fighter [RCS = 3 m²] was detected with a probability of 0,5 at a distance of 240 km.
        This means that the F-35 with RCS = 0.0001 m240 will be detected at a range: XNUMX /√√(3: 0.0001) = 18.23 km
        http://pvo.guns.ru/s300v/s300v_3.htm

        The 9S19M2 "Ginger" program review radar was a three-coordinate coherent-pulse centimeter-range radar with a high energy potential, electronically controlled beam in two planes and high throughput.
        One of the modes provided for the detection and tracking of the "Pershing" type ballistic missile warhead. In this mode, the field of view was +/- 45 degrees. in azimuth, 26 degrees - 75 degrees. in elevation and 75-175 km in range.
        The multichannel missile guidance station, when operating in the CU mode, provided the detection of fighters at altitudes of more than 5 km at ranges of 150 km, Scud-type ballistic missiles - 90 km, Lance - 60 km, the head of the Pershing missile - 140 km
        ............................
        Let us assume that the head of the Pershing ballistic missile has an RCS of 0.05 m².
        This means that the detection range of this radar of the F-35 aircraft will be 140 /√√(0.05: 0.0001) =29.6 km.
        But the fact is that neither the F-22 nor the F-35 will approach the S-300/400 air defense system at such distances. Small-diameter bombs GBU-39 (guidance only by GPS) are planned for 110 km when dropped at subsonic from an altitude of 11 km, bombs GBU-53B, which have a four-mode seeker, are planned for a distance of 70 km, when dropped from 11 km. The F-35 does not need to be approached either at a range of 18 km or at a range of 30 km; it is necessary to approach a range of 70-110 km.
        By the way: Israeli winged bombs Spice-250 (113 kg) and Spice-1000 (454 kg) are also planned for 110 km, and Spice-2000 (907 kg) - 60 km. Dropped at a higher altitude and higher speed - they fly further ...

        1. Outsider
          Outsider 26 August 2020 14: 46 New
          0
          - Another gift:

        2. Gust
          Gust 26 August 2020 16: 20 New
          0
          For a spherical horse in a vacuum. And now, point by point:
          1. Dmax (as well as EPR) should still depend on the radar range, shouldn't it? If in the centimeter range, the coating and the internal structure of the airframe still allow for stealth (strictly in front), then at the slightest deviation from the normal this is already strongly NOT so. In the decimeter range, it is no longer possible to effectively implement stealth for reasons of a fundamental nature.
          2. It is necessary to distinguish between actual target detection and tracking - these are fundamentally different tasks. The detection of low-signature aircraft with powerful decimeter and especially meter-wide radars has long been worked out, there the low-signature of an aircraft is unrealizable from the word "completely", and the question is rather in signal processing. The whole point of stealth is that the short-wave SSTS will not be able to capture such a target from afar and aim the missile defense system. At the same time, longer-wave radars are not suitable for guidance due to the low spatial resolution. Sane officers overseas also understand this and say bluntly that "it is enough to break the chain of operation of the air defense missile system in one link so that the interception does not take place." This link is the difficulty in capturing the STS.
          3. Based on the foregoing, the tactics of detecting low-signature aircraft are being built - either by spaced radars (with a significant target parameter), or by long-wave radars, or attached to passive radars (if we talk about the duel situation "S-400 regiment versus F-35 squadron"). Further, having received the primary tie, measures are taken to defeat it. This can be, for example, firing an anti-aircraft guided missile with an ARGSN with a target lock on the trajectory, it can be firing at a target by another battalion, whose radars were silent, etc.
          Well, for sweetness, how does the F-35 detect targets (ground, air)? Or does it have subtle radio waves too?;)))
          1. Outsider
            Outsider 26 August 2020 17: 57 New
            0
            And now the points:
            1. Dmax (as well as EPR) should still depend on the radar range, shouldn't it?

            - Absolutely right! For stealth, all basic data are given in the centimeter range. In the small decimeter range, in which, in particular, American AWACS (7.5-15 cm) and Russian AWACS aircraft (15-30 cm) operate, the RCS will be 2, maximum 3 times more. In the meter range, where radars like the ancient P-14 and relatively new ones - the "Sky" family (wavelength up to 1.7 meters) operate, the RCS of stealth aircraft will be 10 times more. But not at 50 or at 100.
            If in the centimeter range, the coating and the internal structure of the airframe still allow for stealth (strictly in front), then at the slightest deviation from the normal this is already strongly NOT so. In the decimeter range, it is no longer possible to effectively implement stealth for reasons of a fundamental nature.

            - There is no need to tell fables about "reasons of a fundamental nature" - you do not even have a vague idea of ​​them. Record: There are three types of radio scattering:
            1. Optical - the wavelength is more than 4 times the overall dimensions of the target.
            2. Resonant - the wavelength is approximately commensurate with the overall dimensions of the target.
            3. Rayleigh - the wavelength is much larger than the target.
            Neither the centimeter-range radar nor the decimeter-range radar are even close for stealth aircraft beyond point 1.
            Over-the-horizon radars operating at wavelengths of 28 meters or more - clause 2 is valid for them. and item 3, they see stealths almost the same as ordinary airplanes, but there are a number of features - a multi-hundred-kilometer "dead zone", low azimuth accuracy, stationary, huge stations.
            2. It is necessary to distinguish between actual target detection and tracking, these are fundamentally different tasks.

            - These are not fundamentally different tasks, the second plan follows from the first and, probably, you simply did not hear the term "tracking on the passage" - track while scan (TWS).
            Detection of subtle aircraft with powerful decimeter and especially meter radars has long been worked out

            - Yes, not a damn thing, it has not been worked out anywhere, not even in the US Air Force.
            ... there the aircraft's stealth is unrealizable from the word "absolutely",

            “Don't talk stupid nonsense.
            and the question is rather in signal processing.

            - And snava you with a clever look carry something that you do not understand at all. Naturally, signal processing occurs in any radar / radar station, but the basic radar formula cannot be fooled, I will probably have to cite it here in each topic two times ... laughing
            The whole point of stealth is that the short-wave SSTS will not be able to capture such a target from afar and aim the missile defense system.

            - Do you naively think that a VHF radar, for example, like this:
            http://militaryrussia.ru/blog/topic-690.html
            Will be able to see the F-22 for 150 kilometers? It's a delusion. Kilometers for 70-80, at best, - from the front hemisphere.
            At the same time, longer-wave radars are not suitable for guidance due to low spatial resolution. Sane officers overseas also understand this and say bluntly that "it is enough to break the chain of operation of the air defense missile system in one link so that the interception does not take place." This link is the difficulty in capturing the STS.

            - There are really very powerful radars, such as Voronezh. They are really able to see both the F-22 and the F-35 kilometers in 200-300. They will be eliminated by stealth-KR at extremely low altitudes. And the washing radars, even the most powerful ones (which I have cited), are not yet able to withstand a real attack from stealth aircraft.
            3. Based on the foregoing, tactics of detecting low-signature aircraft or spaced radars (with a significant target parameter) are being built

            - We'll have to wait - until the alternate reality becomes true. This has not yet been worked out on a mass scale.
            ... or long-wave radar

            - see above.
            ... or attached passive radars (if we talk about the duel situation "S-400 regiment versus F-35 squadron").

            - We have agreed - DO NOT LOOK BREEDING ?!
            Further, having received the primary tie

            - The purpose of stealth is that it is extremely difficult to find and capture such an aircraft, using all the capabilities available in the army's arsenal. No matter how sofa hamsters dream about it.
            ... measures are being taken to defeat her. This can be, for example, firing SAM with ARGSN with target acquisition on the trajectory

            And at what distance do you think ARGSN will see a stealth plane if it sees a Su-30 for 16 kilometers? D = 16 / √√ (20: 0.0002) = 0.9 km.
            ... it can be firing at the target by another battalion, whose radar stations were silent, etc.

            - Yes, yes: they were disguised as a stack of hay. And suddenly - again! And - point blank! laughing
            Well, for sweetness, how does the F-35 detect targets (ground, air)? Or does it have subtle radio waves too?;)))

            - Do I have to talk about LPI mode again and again on each page five times a day?
            The Low Probability of Intercept (LPI) capability of the radar defeats conventional RWR / ESM systems. The AN / APG-77 radar is capable of performing an active radar search on RWR / ESM equipped fighter aircraft without the target knowing he is being illuminated. Unlike conventional radars which emit high energy pulses in a narrow frequency band, the AN / APG-77 emits low energy pulses over a wide frequency band using a technique called spread spectrum transmission. When multiple echoes are returned, the radar's signal processor combines the signals. The amount of energy reflected back to the target is about the same as a conventional radar, but because each LPI pulse has considerably less amount of energy and may not fit normal modulation patterns, the target would have a difficult time detecting the F-22.
  14. The comment was deleted.
  15. Gust
    Gust 26 August 2020 22: 27 New
    0
    Quote: Rafale
    EPR stealth aircraft will be more than 10 times. But not 50 and not 100.

    Hard case. Okay, I'll try it on my fingers.
    For interaction with a wave, the structure must have a size comparable to the wavelength. The special stealth coating of considerable thickness is not just because there is a special filler responsible for the centimeter range, working in conjunction with honeycomb structures.

    The foreground picture shows such a structure. This is how almost all-aspect stealth is achieved in the centimeter range.
    There is nothing to absorb the decimeter range. Its engine and wiring, metal elements of the fuselage, metal weapons reflect it. Therefore, interference suppression becomes more effective when reflecting specially selected structural elements with a characteristic quarter-wave size. It turns out lot worse and only in the anterior hemisphere.
    Meter range - no options. Materials that absorb well in the centimeter range have relatively high conductivity, enhancing the effect.
    Quote: Outsider
    - These are not fundamentally different tasks, the second plan follows from the first and, probably, you simply did not hear the term "tracking on the passage" - track while scan (TWS).

    Not applicable for meters. The accuracy of the tie-up of a decimeter radar is tens of meters, a meter-300-500 m. Everything is real, the main thing is to want.

    Quote: Outsider
    - Do I have to talk about LPI mode again and again on each page five times a day?

    Watch Hollywood less, you don't have to talk nonsense. You open your own formula and see that apart from EPR everything is under the root of the fourth degree. The signal strength must be sufficient in any mode for the receiver to receive and process it, and it depends to the fourth power on the distance. In this case, for a powerful ground-based passive radar, the problem of radiation detection is on orders easier than for the small radar Adir'a. As soon as he turns on the radar for radiation, it will glow like a Christmas tree.

    And in general, I recommend the Technion after school, there is a very serious approach to learning and a good mathematical school, you will not have to repeat other people's delusions.
    1. Operator
      Operator 26 August 2020 22: 55 New
      +1
      The polymer coating with a ferromagnetic powder filler F-22 / F-35 / Su-35 absorbs radio waves of all ranges - with varying degrees of success, of course.

      The honeycomb structure of the F-117 airframe also absorbs radio waves, together with the honeycomb, the faceted shape of the airframe surface is used, reflecting part of the probe radiation to the sides of its source.

      Polymer coating and honeycomb are not used together, since the coating shields the honeycomb from radiation.
    2. Outsider
      Outsider 27 August 2020 01: 15 New
      -1
      For interaction with a wave, the structure must have a size comparable to the wavelength. The special stealth coating of considerable thickness is not just because there is a special filler responsible for the centimeter range, working in conjunction with honeycomb structures.

      - It's in the past. The F-117 and B-2 really had such a structure. Therefore, they had to be kept in hangars, where a certain temperature and humidity were maintained, which is too expensive... The F-22 / F-35 plating and radar absorbing materials are much thinner, but work just as efficiently as the F-117 and B-2 multi-layer plating. But they are not afraid of rain or snow.
      Quote: Outsider
      - These are not fundamentally different tasks, the second plan follows from the first and, probably, you simply did not hear the term "tracking on the passage" - track while scan (TWS).

      Not applicable for meters. The accuracy of the tie-up of a decimeter radar is tens of meters, a meter-300-500 m. Everything is real, the main thing is to want.

      - So want it! wink Who interferes?
      Quote: Outsider
      - Do I have to talk about LPI mode again and again on each page five times a day?

      Watch Hollywood less, you don't have to talk nonsense.

      - He burst out laughing, student. In addition, he is a poor student.
      You open your own formula and see that apart from EPR everything is under the root of the fourth degree.

      - Are you also visually impaired ?? There, the EPR is under the root of the 4th degree! laughing lol It is denoted in this formula by the Greek side "sigma small" - σ... Did not recognize?! wink laughing

      The signal strength must be sufficient in any mode for the receiver to receive and process it, and it depends to the fourth power on the distance.

      - It is sufficient. I gave a link, do you need a translation? Say so.
      Moreover, for a powerful ground passive radar

      - There are no "passive" radars !! am This is an absurd expression that borders on shiza. There are passive phased antenna arrays!
      ... the task of detecting radiation is orders of magnitude easier than for the small Adir radar.

      - Uh, no, sir: a huge ground-based radar needs to find a stealth plane in the sky with a vanishingly small RCS. But the airborne radar station does not need to find stealth objects on the ground! Their EPR is huge!


      And in general, I recommend the Technion after school, there is a very serious approach to learning and a good mathematical school, you will not have to repeat other people's delusions.

      - I would love to study at the Technion, but since I graduated from the 10-year school in 1967, I'm afraid they won't take me there. All hope is for his grandson, he is now 12 years old, so he will have to study there ... smile
  16. Gust
    Gust 27 August 2020 11: 10 New
    0
    Quote: Outsider
    - Are you also visually impaired ?? There, the EPR is under the root of the 4th degree!

    Then not on your fingers. Let us set the initial conditions - the distance from the aircraft to the "passive radar" (correctly in this case, indeed, the "RTR station") is 100 km. The power of the reflected signal received by the aircraft radar is proportional to fourth degree of distance, the power of the same signal received by the RTR station- second, that is, the RTR station receives a signal 10000 times stronger than the sender's radar. The antenna of the RTR station has a larger area and a higher gain, approximately every 6-7. This is already up to 70000 times, with a comparable quality factor of the receiving path of the radar and RTR, the intrinsic noise of the amplifiers. Further, the coefficient of reflection from the object is also different from unity, averaging 0,6-0,7. In total, the RTR station receives, at a distance of 100 km from the aircraft, 100 * 100 * 7 / 0,7 = 100 times more powerful radar signal than its own, but reflected from it. This is physics, a school course. With increasing distance, the picture only gets worse for stealth.
    Quote: Outsider
    Uh, no, sir: a huge ground-based radar needs to find a stealth plane in the sky with a vanishingly small RCS. But the airborne radar station does not need to find stealth objects on the ground! Their EPR is huge!

    The RTR station does not emit anything, it does not care for the EPR of stealth in 0,000000001 sq. m. And there is no need to look for him, he will declare himself by turning on the radar.

    Those who actually operate these complexes are well aware of this and do not rely on LPI. Therefore, the tactics of their use assumes autonomous use for previously reconnoitered stationary targets. If reconnaissance is needed, then AWACS is involved, or one of the F35s is in active mode from behind, the rest receive a control center from him, etc.
    Belief in "no analogues" LPI and stealth is certainly good, but knowing the real state of affairs is also useful.
    https://riafan.ru/1137335-izrail-kupil-u-ukrainy-razvedkompleks-kolchuga-m-defence-blog
    The latter is apparently for working out tactics against such complexes - there are no dreamers in Hel Ha'Avir;))
    1. Outsider
      Outsider 27 August 2020 13: 24 New
      -1
      Let us set the initial conditions - the distance from the aircraft to the "passive radar" (correctly in this case, indeed, the "RTR station") is 100 km. The power of the reflected signal received by the aircraft radar is proportional to the fourth power of the distance, the power of the same signal received by the RTR station is the second, that is, the RTR station receives a signal 10000 times more powerful than the sender's radar.

      - To this point - everything is absolutely correct.
      The antenna of the RTR station has a larger area and a higher gain, approximately every 6-7. This is already up to 70000 times, with a comparable quality factor of the receiving path of the radar and RTR, the intrinsic noise of the amplifiers.

      - But with the sharp directivity of the antennas of the same Kolchuga, everything is more than modest: they receive signals in a wide angle - otherwise they will not catch anyone.


      Further, the coefficient of reflection from the object is also different from unity, averaging 0,6-0,7. In total, the RTR station receives, at a distance of 100 km from the aircraft, 100 * 100 * 7 / 0,7 = 100 times more powerful radar signal than its own, but reflected from it. This is physics, a school course. With increasing distance, the picture only gets worse for stealth.

      And this is where the "nuances" begin:
      1. "Kolchuga" (made more than 40 years ago and its analogues) is designed to detect and search for the location of radiation sources, either all-aspect (radio communication stations), or, if it is a radar, with huge radiation patterns with very high side lobes.
      2. The main directional diagram of both the F-22 and the F-35 is needle-shaped, with a diameter of ~ 2 °, and the level of their side lobes is extremely low, of the order of -60 dB on average. Therefore, to catch the radiation of such radars with these antediluvian RTR stations and to determine the place of aircraft with them is a highly hopeless task. There is no triangulation.
      Those who actually operate these complexes are well aware of this and do not rely on LPI.

      - Of course they do, but they forgot to tell you about it ...
      Therefore, the tactics of their use assumes autonomous use for previously reconnoitered stationary targets.

      - By stationary - of course, but not only. The GBU-53B bombs also perfectly catch mobile ground targets, provided that the speed is no more than 70 km / h.
      If reconnaissance is needed, then AWACS is involved, or one of the F35s is in active mode from behind, the rest receive a control center from him, etc.

      - If there is no preliminary target designation or you need to conduct additional reconnaissance - the F-35 searches for targets itself (see video above). Who will provide additional target designation for him hundreds of kilometers away somewhere in the depths of Syria ?? The AWACS aircraft will not get there - it is too visible, too dangerous.
      Belief in "no analogues" LPI and stealth is certainly good, but knowing the real state of affairs is also useful.

      - This is your blind faith complexes 40 years ago, in fact, they are not at all as good as you think. Yes, they weren't even good then, they did not show themselves in any of the local conflicts.
      https://riafan.ru/1137335-izrail-kupil-u-ukrainy-razvedkompleks-kolchuga-m-defence-blog
      The latter is apparently for working out tactics against such complexes - there are no dreamers in Hel Ha'Avir;))

      - Since the same stations are in service with Russia, and therefore the air defense of Assad, it is a sacred thing to study their capabilities. Even in order to then, with a smile of relief, continue to hammer at the targets of the IRGC in Syria. And if necessary, the Syrian ...
  17. Gust
    Gust 27 August 2020 15: 13 New
    0
    Quote: Outsider
    If there is no preliminary target designation or additional reconnaissance is needed, the F-35 searches for targets itself (see video above) Who will provide additional target designation for him hundreds of kilometers away somewhere in the depths of Syria ?? The AWACS aircraft will not get there - it is too visible, too dangerous.

    He seeks targets himself where there is no serious opponent. MANPADS, MiG-21, Su-24, S-200, etc. naphthalene. This is where LPI comes in handy. Against an equal enemy, there will be AWACS at a distance of 400 km from the line of contact with the air enemy and 250-300 with the ground one. There is nothing to get it from the ground (the Syrians and Iranians - exactly), they will cover their F35s from the fighters, what is the danger ??
    Quote: Outsider
    - This is your blind faith complexes 40 years ago, in fact, they are not at all as good as you think. Yes, even then they were not good at all, they did not show themselves in any of the local conflicts.

    Chain mail was for example (if someone did not understand). I will not list modern Russian ones, besides, many people there plow the cornfield. "The Czech company ERA manufactures and supplies the ground forces with the Vera-E (VERA-E) electronic reconnaissance complex.

    The complex provides reconnaissance of air targets at a distance of up to 1 km, and ground targets up to 000 km in the frequency range 18-000 MHz. It allows you to search, detect and recognize IRI in the sector up to 450 ° in azimuth (expandable to 40 ° is possible), simultaneously track up to 120 targets with displaying the current situation on the display and determine the coordinates of IRI with an accuracy of 360-120 m. The information update frequency is 10-100 s. "
    Quote: Outsider

    Even in order to then, with a smile of relief, continue to hammer at the targets of the IRGC in Syria. And if necessary, the Syrian ...

    It is not an equal or technologically comparable adversary. There you can not strain at all.
    1. Outsider
      Outsider 28 August 2020 12: 08 New
      -1
      He seeks targets himself where there is no serious opponent. MANPADS, MiG-21, Su-24, S-200, etc. naphthalene. This is where LPI comes in handy.

      - He looks for targets himself where he was not previously given and not set in his bombs the exact coordinates of targets. If issued and installed - flies and drops bombs, and then comes back).
      Against an equal enemy, there will be AWACS at a distance of 400 km from the line of contact with the air enemy and 250-300 with the ground one. There is nothing to get it from the ground (the Syrians and Iranians - exactly), they will cover their F35s from the fighters, what is the danger ??

      - It's even hard to imagine who you took here as two "equal opponents" ?? Let's say USA and China... American AWACS after all the upgrades - a wonderful thing, as we recently found out - detects a target with RCS = 1 m² for 420 km. But let's imagine that the Chinese have modest achievements, J-20 EPR = 0.01 m², only. But AWACS will then see J-20 only for 420 / √√ (1: 0.01) =133 kilometers. You placed AWACS at a distance of 400 km from the line of contact with the enemy - so if the J-20 is still on the other side - what is the use of this AWACS for their fighters ?! WHO WILL HE SEE ?? Information from him - ZERO!
      Don't you "cut through" such elementary things? Make at least a pencil drawing on a piece of paper before writing this garbage, "laughing chickens" ...
      I will not list modern Russian ones, besides, many people there plow the cornfield. "The Czech company ERA manufactures and supplies the ground forces with the Vera-E (VERA-E) electronic reconnaissance complex.

      - Czech Republic is a NATO member. With what hangover will it start supplying its newest RTR stations to Russia? belay
      Quote: Outsider
      Even in order to then, with a smile of relief, continue to hammer at the targets of the IRGC in Syria. And if necessary, the Syrian ...

      It is not an equal or technologically comparable adversary. There you can not strain at all.

      - I repeat: there are a lot of Russian S-300s, with all their radars. Who knows what will come to mind Shoigu, who (they say) is a candidate to succeed the President of the Russian Federation, will give (without asking Putin) the command: "Trying to shoot down all Israeli planes over Syria!" And they will try! wink
  18. Gust
    Gust 27 August 2020 15: 24 New
    0
    Quote: Rafale
    2. The main directional diagram of both the F-22 and the F-35 is needle-shaped, with a diameter of ~ 2 °, and the level of their side lobes is extremely low, of the order of -60 dB on average. Therefore, to catch the radiation of such radars with these antediluvian RTR stations and to determine the place of aircraft with them is a highly hopeless task. There is no triangulation.

    The Israeli mobile complex RTR GES-2I0, manufactured by Elisra Electronic Systems, has been in service with the country's ground forces since 1997. It operates in the frequency range of 500-18 MHz (there is a possibility of expanding the upper frequency limit to 000 MHz), providing reconnaissance of air targets at ranges of up to 40 km, and ground (surface) targets up to 000 km. The complex allows you to search, technical analysis and recognition of IRI in the sector up to 450 ° in azimuth (with an extension to 40 °), simultaneously track up to 180 targets with the display of the current situation and determine their coordinates with an accuracy of 360-200 m.

    The GES-210 implements a goniometric method for determining the coordinates of the IRI. The complex consists of three reception areas and one central station. To improve the measurement accuracy, they use amplitude and interferometric methods of direction finding.
    As you can see, everything works out great.
    1. Outsider
      Outsider 28 August 2020 12: 11 New
      -1
      - So thank God! And praise be to Allah! Since I live in Israel ... smile
      1. Leha667
        Leha667 22 September 2020 09: 28 New
        0
        And I kept waiting for the ins and outs to emerge)))
        And here she is!))
        1. stone
          stone 24 September 2020 12: 15 New
          0
          So it was seen before! They, the Israelis, are usually given away adequacy and common sense wink
  19. Gust
    Gust 27 August 2020 15: 39 New
    0
    Quote: Outsider
    The main radiation pattern of both the F-22 and the F-35 is needle-shaped, with a diameter of ~ 2 °

    at a distance of 200 km, this is a spot 7 km in diameter along the normal to the source, and the illumination ellipse on the surface is much larger (depending on the height).
    Maybe the Technion has any courses on radar theory ...?
    1. Outsider
      Outsider 28 August 2020 12: 15 New
      -1
      Quote: Outsider
      The main radiation pattern of both the F-22 and the F-35 is needle-shaped, with a diameter of ~ 2 °

      at a distance of 200 km, this is a spot 7 km in diameter along the normal to the source, and the illumination ellipse on the surface is much larger (depending on the height).
      Maybe the Technion has any courses on radar theory ...?

      - Since you do not know that the standard distance of three Kolchuga stations is 30 km from each other, even a course in Technion would not help you ... No stain from one DN does not fall on two receiving antennas of the RTR station! No triangulation conditions ... laughing tongue
      By the way: this ellipse is elongated along the projection of the BP beam onto the earth's sphere. Not across! lol
    2. The comment was deleted.
    3. Leha667
      Leha667 22 September 2020 09: 30 New
      0
      No need to feed the troll)
      1. Outsider
        Outsider 22 September 2020 12: 27 New
        0
        - This is another question: who is the troll and smacks nonsense, and who gives out valuable and useful information.