M61A2 Aircraft Gun: Lightweight Vulcan Version


Work with the gun M61A1 aircraft F / A-18C / D


In 1959, the U.S. Air Force received the latest automatic gun M61 Vulcan. Soon, her improved version of the M61A1 appeared, so far becoming the main example of its class. After several decades, another modernization took place, the result of which was the product M61A2, again noticeably different from its predecessors.

New requirements


The M61A1 automatic gun was installed on all 4-generation American fighters. It is carried by F-15, F-16 and F-18 aircraft of various modifications. However, the prospects for such weapons in the context of the further development of tactical aviation turned out to be foggy. The ATF program, during which the future 5th generation F-22A Raptor fighter was developed in the nineties, presented new requirements.

In terms of combat qualities, the M61A1 met the requirements of the ATF program, but its other features did not fit into them. First of all, there were claims to the mass. The artillery system "Volcano" assembly weighed approx. 250 pounds (112 kg), which exceeded the limits of the new project. There were also some other complaints.

It was decided to develop a new gun under the designation M61A2. Weight should be reduced by 25% - to 200 pounds (approx. 90 kg). The fighting qualities needed to be maintained at the same level. In its design, the M61A2 should not be different from the M61A1, which made it possible to ensure compatibility with existing and promising aircraft.


Light gun M61A2

Product development was commissioned by General Dynamics Ordnance and Tactical Systems. Subsequently, she received several orders for mass production. Development work was carried out in the mid-nineties, and production soon began. In 2001, the first aircraft with M61A2 guns reached the initial operational readiness stage.

Lightweight design


The M61A2 project provided for the preservation of the existing architecture, operating principles and other design features of the existing M61A1 gun. It was proposed to reduce the weight by reworking individual components and assemblies, replacing materials, etc. Such changes affected both the gun itself and the drum-based ammunition system.

The mass of the gun itself was reduced due to a significant alteration of the barrel unit. The regular shafts were replaced with products from another alloy and with a smaller wall thickness. The length of the trunks remained the same - 1827 mm, the cutting has not changed. Due to new materials, the resource of the barrel unit has grown to 250 thousand shots. Other characteristics have also changed.

Significant changes were made to the storage and supply system for shells. The mass of metal parts was replaced with plastic counterparts, with the exception of only elements experiencing heavy loads. Some of these parts were made of lighter alloys. Drives and some other units have not been finalized. Drum capacity - from 412 shells 20x102 mm, depending on the type of carrier aircraft.

According to the results of such processing, the mass of the artillery system in the assembly was reduced to 202 pounds - approx. 92 kg The body of the gun is approx. 32 kg, for ammunition - less than 60 kg.


In the process of dismantling the M61A2 gun from the F / A-18E / F fighter

Reducing the mass of the barrel unit allowed to increase the speed of rotation when firing. Thanks to this, the technical rate of fire increased to 6600 rds / min. The standard control system, as in the previous version, allows you to set the rate of fire from 4000 rds / min. to maximum values.

First carrier


The production of lightweight guns M61A2 started in the late nineties, and soon the US armed forces received the first aircraft with such weapons. The first carrier of the gun was supposed to be the Lockheed Martin F-22A Raptor fighter, developed for the Air Force. Later it was decided to integrate it into the armament complex of the new Boeing F / A-18E / F Super Hornet aircraft for Navy carrier-based aircraft.

It was the F / A-18E / F that became the first aircraft with the M61A2 on board to begin service. This was facilitated by the complexity of developing a 5th generation fighter, which caused a delay in the work. The promising Super Hornet completed testing in 2000, and in September 2001 the first squadron on such aircraft reached its initial operational readiness. Together with the aircraft, a modernized cannon entered this stage.

To date, more than 600 F / A-18E / F fighters with M61A2 automatic guns have been built. Serial guns were manufactured by GD Ordnance and Tactical Systems through several consecutive orders. The Navy ordered from dozens to hundreds of new products at a time. Most of the guns and their carriers remained in the United States. A number of fighters were sold to Australia and Kuwait.


Ammunition loading

The contractor is currently manufacturing cannons under a contract from August 2019. The U.S. Department of Defense has ordered 66 M61A2s worth more than $ 20 million. 34 guns are intended for US Navy aircraft. The rest is planned to be transferred to Kuwait for installation on its F / A-18E / F. Work and delivery will last until 2023 inclusive.

Fifth generation cannon


In the first half of the two thousandth, the tests of the F-22A fighter were completed and mass production began. The new aircraft, as originally planned, were equipped with M61A2 guns. The first squadron equipped with such equipment reached its initial operational readiness in December 2005.

Serial production of the F-22A continued until 2011. A total of 8 prototypes and 187 combat vehicles were built. To equip such fleet less than 200 M61A2 guns were required, and a certain supply of guns and separate units for them was also needed.

Gun perspective


At its core, the M61A2 cannon is a modified version of the previous M61A1, corresponding to the special requirements of some aircraft projects. In this case, it was a question of only two promising aircraft, which affected the further progress of work and the observed results.

To date, according to various sources, no more than 1000-1200 M61A2 guns have been manufactured - this amount was enough to equip two models of fighters and create a stock of stocks. Production continues, but orders remain small, and new shipments include only dozens of guns.


F-22A fires. To reduce visibility, the gun port is equipped with a movable cover (white element on the center section surface)

The future of the M61A2 in the context of production is directly related to the construction of F / A-18E / F carrier-based fighter aircraft. As long as such aircraft go off the assembly line, GD Ordnance and Tactical Systems can count on new orders. The production of F-22A fighters has long been curtailed, and the next F-35 received a gun of a different model.

However, in the context of operation, everything looks much more optimistic. In the United States and other countries, several thousand aircraft with cannons of the Vulcan family serve. Basically, these are the older "heavy" M61A1; the number of active "lungs" M61A2 barely exceeds 800 units. However, the equipment is in operation and will remain in service for a long time. It is unlikely that during this period the command will consider rearmament and replacement of artillery.

What will happen in the future is unknown. The Pentagon discusses the creation of new tactical aircraft, and from time to time various data are published on this light. The problem of airborne guns remains unsolved. However, it cannot be ruled out that in the future, the M61A2 will find a new carrier.

In general, the M20A61 2 mm automatic gun is an original solution to the urgent problem associated with the development of aviation technology. In connection with the advent of a new generation of fighters, requirements for airborne guns increased, and the industry responded by processing the existing design. However, there was no need for the mass introduction of such weapons, which led to the curious results now being observed.
Author:
Photos used:
US Air Force, US Navy, Wikimedia Commons
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  1. Sergey Averchenkov 26 March 2020 18: 12 New
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    Excuse me, is GS 30-2 worse?
    1. Maki Avellevich 26 March 2020 18: 57 New
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      Quote: Sergey Averchenkov
      Excuse me, is GS 30-2 worse?

      at GSh, the rate of fire is two times lower.
      1. Sergey Averchenkov 26 March 2020 19: 08 New
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        If you understand me ... a simple example ... When I go hunting, I can’t take a lot of rounds of ammunition, usually 22-24 (I have 22), and the fact that I shoot a little and do not spend rounds ... I only happy. The faster you shoot, the more quickly the ammunition will end.
        1. Maki Avellevich 26 March 2020 19: 10 New
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          Quote: Sergey Averchenkov
          If you understand me ... a simple example ... When I go hunting, I can’t take a lot of rounds of ammunition, usually 22-24 (I have 22), and the fact that I shoot a little and do not spend rounds ... I only happy. The faster you shoot, the more quickly the ammunition will end.

          I agree in general. but
          rate of fire is very important for an airplane (which also gives accuracy). when the target is captured there is a very narrow firing window (temporary)
          1. Sergey Averchenkov 26 March 2020 19: 17 New
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            Okay, let the rate of fire, I agree in something. But one turn and I'm in the ass, but otherwise the GS is not inferior. Even superior.
            1. Undecim 26 March 2020 19: 52 New
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              There will be no ass. Electronics constantly monitors the amount of remaining ammunition and a queue of more than 50 shots will not miss. You can set the length of the queue fixed - from 2 to 50 shots.
              1. Sergey Averchenkov 26 March 2020 20: 15 New
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                I did not know. You see what’s the matter, I served much earlier than electronics appeared. If this is really possible, well, but only glad
              2. voyaka uh 27 March 2020 01: 42 New
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                Usually shoot fixed bursts of cut-offs of 10 shells.
            2. alexmach 26 March 2020 20: 21 New
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              Does your target move at supersonic speeds and actively maneuver? And you yourself when shooting?
              but otherwise GS is not inferior. Even superior.

              She is also 30 kg heavier
              1. Sergey Averchenkov 26 March 2020 20: 31 New
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                That is, this horseradish volcano is better, are you trying to prove it to me? Well, fight the volcano. And I will be with GSH.
                1. alexmach 26 March 2020 20: 40 New
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                  I bring the facts and you are emotions. Your emotions are not an argument from the word at all, well, except for inappropriate tantrums.
                  I’m not trying to prove anything to you. In fact, both guns are good. And neither you nor I will have to fight them, judging by the photo at the flight school, neither you nor they will take me.
                  1. Sergey Averchenkov 26 March 2020 23: 36 New
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                    You're right. But I am right. Is not it?
                2. Korax71 26 March 2020 22: 47 New
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                  The survivability of the barrel block at the volcano is 4 times higher. And finally it’s not correct to compare the gun with a caliber of 20x102 and 30x165. They decided to compare 30mm, so compare with GAU-8A.
                  1. 3danimal 30 March 2020 15: 22 New
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                    More than 100 times.
                    1. Korax71 30 March 2020 15: 50 New
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                      I won’t argue here request I met different info. It seems like the survivability of the block of barrels for a volcano from 40k shots was stated, for a hundred people a hundred, but it seems like up to 10k shots. I did not go very deep into the search for truth, so anything is possible hi
                3. Chaldon48 26 March 2020 22: 49 New
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                  Emotions for the Russian military are also very important, remember there is such an old Russian song: "Messrs. Officers, I ask you to consider who saved his nerves, did not save his honor"
              2. Bad_gr 26 March 2020 21: 49 New
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                Quote: alexmach
                She is also 30 kg heavier

                Gun mass
                112 kg (M61A1),
                92 kg (M61A2)

                105 kg GSh-2-30
                126kg GSH-2-30K

                GSh-2-30K (helicopter version) has both barrels almost a meter longer, hence the extra weight. The airplane version is 102 kg, which is 10 kg heavier than the lightweight M61A2, but this is with a projectile weight of 390 grams (the M61A2 has a projectile weight of 101 g)

                We add here that the M61A2 firing mechanism was powered by an external 26 kW drive. Ours does not need additional sources for automation.
                1. voyaka uh 27 March 2020 01: 53 New
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                  "Ours does not need additional sources for automation." ///
                  ----
                  This is a plus. But there are also disadvantages.
                  The drive from powder gases is clogged with soot. More soot, the passage narrows -
                  rate of fire falls. It is necessary to clean constantly.
                  And the electric motor gives a reliable rate of fire regulated by its rotation.
                2. Undecim 27 March 2020 09: 29 New
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                  Ours does not need additional sources for automation.
                  "Theirs" in the GAU-4 variant also does not need.
                  1. Bad_gr 27 March 2020 13: 39 New
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                    Quote: Undecim
                    "Theirs" in the GAU-4 variant also does not need.

                    Where does this information come from?
                    From what I came across on GAU-4:
                    "Principle of operation: Gatling scheme with a rotating block of trunks and external drive for automation. "
                    An electric drive is installed on a small caliber (for example, M134 Minigun), on those that are more powerful than a hydraulic one, but about the operation of automation from powder gases, if there is one, it is not very common.
                    1. Undecim 27 March 2020 13: 58 New
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                      Where does this information come from?
                      Book "Instruments of War: Weapons and Technologies That Have Changed History ..."
                      See also SUU-16 / A. There, the issue was originally resolved.
                      1. Bad_gr 27 March 2020 14: 06 New
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                        Quote: Undecim
                        Book "Instruments of War: Weapons and Technologies That Have Changed History ..."
                        See also SUU-16 / A. There, the issue was originally resolved.

                        It’s strange. If everything is clear on the SUU-16 / A gun: ".... The new installation, which received the designation SUU-16 / A, placed a standard M61A1 gun with a mechanical drive and an ammunition load of 1200 20 mm M50 shells. As a gun drive an air turbine was used, acting from the flow of incoming air ..... "That is - an external drive (as is usual with the Americans), then:
                        ".... According to the test results, the second version of the outboard installation was created, which received the designation SUU-23 / A, which was equipped with a GAU-4 Vulcan gun driven by an electric motor ...." (http://www.airwar.ru/weapon/guns/suu-23.html) it turns out that the GAU-4 external drive, although you dispute this.
                      2. Undecim 27 March 2020 14: 13 New
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                        Well, I brought you a source that describes the version of the GAU-4 with a gas drive. Even in the English-language Wikipedia, this option is mentioned. And you to me, "Corner ..." in response.
                        "Corner" is an excellent site, but not without flaws and mistakes. About American weapons it is better to look at American sites and in American books.
                      3. Bad_gr 27 March 2020 15: 40 New
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                        Quote: Undecim
                        About American weapons it is better to look at American sites and in American books.

                        I agree, but not strong in English sad
      2. neri73-r 26 March 2020 19: 42 New
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        Quote: Maki Avellevich
        (which also gives accuracy)

        It depends on what is meant by accuracy! Shooting from anti-aircraft artillery systems and aircraft guns, if I’m not mistaken, don’t need accuracy in sniper understanding (lay bullets nearby), they shoot with a “cloud” or “swarm” to get guaranteed, speed will do its job, the plane will fall apart.
        1. Obi-Wan Kenobi 27 March 2020 07: 04 New
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          It depends on what is meant by accuracy! Shooting from anti-aircraft artillery systems and aircraft guns, if I’m not mistaken, don’t need accuracy in sniper understanding (lay bullets nearby), they shoot with a “cloud” or “swarm” to get guaranteed, speed will do its job, the plane will fall apart.

          There is such a thing - The mass of a second volley.
          A very important characteristic for aircraft guns, due to the transience of air combat or attack by ground targets.
          The mass of a second volley is the numerical characteristic of weapons, equal to the total mass of all shells fired by guns of a combat unit per second of time.
          The mass of a second volley is the simplest and most understandable characteristic. However, this indicator does not take into account the external ballistics of the projectile. A weapon that has a high rate of fire, but a low initial speed will have a large mass of a second volley, but low combat effectiveness due to insufficient kinetic energy of the ammunition.
          To assess the destructive effect of the kinetic (without taking into account the action of an explosive charge) energy of projectiles on the target, a characteristic such as muzzle energy is also used.
  2. Amateur 26 March 2020 19: 20 New
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    at GSh, the rate of fire is two times lower.

    Which GS? Maybe at GSh 6-23 9000 rpm, and at GSh6-30 -4500 rpm, and the weight of a volley is several times more. well and
    Due to new materials, the resource of the barrel unit has grown to 250 thousand. shots.
    big question. AK-74 25000, GSh-23 -10000.
    1. Maki Avellevich 26 March 2020 20: 21 New
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      Quote: Amateur
      Which GS? Maybe at GSh 6-23 9000 rpm, and at GSh6-30 -4500 rpm

      Comrade Sergei spoke of:
      Excuse me, is GS 30-2 worse?
      1. 3danimal 30 March 2020 15: 26 New
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        GSH-30-6 had an extremely excessive return, which negatively affected the design of the Mig-23.
        23mm variants have worse ballistics than 20mm American and 30mm ours.
    2. 3danimal 30 March 2020 15: 25 New
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      On most 4,4+ generation fighters of the Air Force of the Russian Federation are GSh-30-1. 1500 rds / min, weight 44kg, barrel resource 2200 rounds.
  3. vkl.47 27 March 2020 17: 26 New
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    Quote: Maki Avellevich
    Quote: Sergey Averchenkov
    Excuse me, is GS 30-2 worse?

    at GSh, the rate of fire is two times lower.

    I do not think that GSH 23-6 has a lower rate of fire.
  • neri73-r 26 March 2020 19: 03 New
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    Quote: Sergey Averchenkov
    Excuse me, is GS 30-2 worse?

    Why do you think so? Fundamentally different products, there is an electric motor, we have recoil, etc.
    1. Maki Avellevich 26 March 2020 19: 07 New
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      Quote: neri73-r
      Why do you think so? Fundamentally different products there electric motor, we have returns, etc ..

      Hydraulic drive
    2. Sergey Averchenkov 26 March 2020 19: 20 New
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      Well, the return, in principle? Yes, with what fig fundamentally? They perform the same functions. What is the principle?
      1. neri73-r 26 March 2020 19: 44 New
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        Quote: Sergey Averchenkov
        Well, the return, in principle? Yes, with what fig fundamentally? They perform the same functions. What is the principle?

        Less reliable, depending on many factors, our more reliable system.
  • Undecim 26 March 2020 19: 39 New
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    The M61A2 project provided for the preservation of the existing architecture, operating principles and other design features of the existing M61A1 gun. It was proposed to reduce the weight by reworking individual components and assemblies, replacing materials, etc. Such changes affected both the gun itself and the drum-based ammunition system.
    The feed system is an independent system, it is manufactured separately for each model of the aircraft and its weight has nothing to do with the weight of the gun. Depending on the model of the aircraft, it has different capacities and different weights (140-180 kg in running order)
    Therefore, the reduction in gun weight was achieved due to the barrel block, which in the M61A2 model has two modifications - light and heavy. With a block of light barrels, the gun carries 91,6 kg, with a block of heavy barrels - 103,4 kg.
  • Zaurbek 26 March 2020 19: 40 New
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    We must compare the weight of the gun and the weight of the second volley .... and we have different tasks ... historically, they have escort of bombers and fighter shooting and large ammunition, and we have shot down bombs ... hence the calibers are different and the rate of fire.
  • Taoist 26 March 2020 20: 46 New
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    If we talk about analogues, then these are GSh6-23 and GSh6-30. GSh 6-23 weighed 73 kg. at one and a half times higher rate of fire. (and it’s more compact) Again, we have a fundamental difference - the gun does not require external power supply. Promotion of the barrel block from the powder engine. those. always shoots.
    To be honest, I am confused by the weight of the new gun’s ammunition ... - almost half a thousand shells with a tape and a magazine weigh less than 100 kg? ShVAK cartridge which only the lazy did not scold for "low power" weighed nearly 200 grams ... i.e. even without taking into account the weight of the drum, this is all the weight ...
    We have six-barrels used limitedly because of their excess power. The same GSh 23 did not have a much lower rate of fire but it was both easier and easier ...
    1. Zaurbek 26 March 2020 22: 42 New
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      23mm 1,5 times more powerful than 20mm. An analogue of the 25mm NATO shell
      1. Korax71 27 March 2020 14: 33 New
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        You compare 23х152, but in aviation it was used only on WW-23u gh 6-23 23h115 in WWII, but this projectile is just inferior to 20x102: speed-720 versus 1035, muzzle energy 45kJ versus 53 kJ hi
        1. Zaurbek 27 March 2020 16: 37 New
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          And in GS 2-23, what is used?
          1. Korax71 27 March 2020 18: 03 New
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            In gsh 23 all the same 23x115. hi and 23x152 is 2a14 and 2a7 (Shilka). he really has 980 capes and 90kJ.
        2. 3danimal 30 March 2020 10: 02 New
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          The advantage is also in a more flat projectile trajectory (20mm), a longer direct shot range.
          Interestingly, the new / old 25mm cannon on the F-35 has similar ballistics.
  • John22 26 March 2020 21: 21 New
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    We must not forget about the direct firing range of aircraft guns. 30 mm shell, it is clearly more than 20 mm.
    1. Zaurbek 26 March 2020 22: 39 New
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      The question is still aiming range ....
    2. 3danimal 29 March 2020 21: 36 New
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      At a lower initial speed?
      Analogy: is the range of a direct shot longer with the AK-74 or AKM?
  • 5-9
    5-9 27 March 2020 10: 39 New
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    It seems that no one, except the Merikans, has such a semi-machine gun with a small caliber ... why so?
    1. Couchexpert 27 March 2020 13: 03 New
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      I would venture to suggest that this is because this gun was initially considered exclusively an auxiliary weapon of the air-to-air type, if I may say so. Therefore, such a set of parameters: high rate of fire (targets without armor, short air contact), small caliber (the need for light ammunition to increase ammunition, the need to reduce returns with such a powerful rate of fire both to increase accuracy and to reduce the destructive effect on the glider) . Disadvantages in the form of a relatively small high-explosive action and firing range of shells, the need for an external drive for barrels and the total complexity of the installation (compared to the Gast scheme, for example, for the GSh-30-2) are completely justified from the point of view of the designers. In other words, the gun is very highly specialized.
      In our country, a caliber of 30 mm was chosen as universal for all aviation: fighter-bomber, attack aircraft, helicopters ... anti-aircraft guns, infantry fighting vehicles, etc. etc. Currently, such universalization is starting to turn into a problem: for air combat, the caliber does not allow to increase the rate of fire (too high returns - proved by GSh-6-30), which is very important in terms of increasing the probability of destruction, and attack aircraft / helicopters to attack point targets on the ground even in more vulnerable overhead projections with 30-mm shells, power is becoming increasingly small (typical angles of impact, range and velocity of shells are very small for penetrating armor by modern standards, and a small volume of explosive society inside the land mines does not allow much damage to armored vehicles, but this is more likely to the question of the general prospects of aircraft as artillery platforms).
  • Vladimir Badaev 27 March 2020 10: 51 New
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    GSH-6-23 is on the MIG-31 and Su-24, GSH-23-2 on the MiG-23 and many other Soviet aircraft, plus China. On the entire line of Su and MiG-29 single-barrel GSh-301. GSH-6-30 on the MIG-27. In Europe, on Mirages, Jaguars, Hunters, Hariers, there were 2 cannons of Def 30mm (France) or the same Aden (England). In China, 30mm on planes and helicopters is not. Draw conclusions and see which guns in air battles most shot down aircraft and which were actually massively set. So far, Israeli Mirages have shot down most of all. Now most of all they fight with missiles.
    1. Zaurbek 27 March 2020 16: 40 New
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      In Korea, on Sabers there were 6x12,7 Browning .... and on the MiG-15 2x20mm and 1x37mm .... and they shot down + or - it is equal .... but in the fight against Super Fortresses the Soviet arsenal was much more preferable.
      1. Sergey Zhikharev 27 March 2020 17: 00 New
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        Saber was built as a fighter against a fighter, and 6 12,7 mm by the standards of WWII was enough for it (in the jet era it was already missing), and the MiG-15 is just more than bombers. Saber - rate of fire of guns (important in a battle against a fighter), MiG-15 power of guns (more important against a bomber)
        1. Zaurbek 27 March 2020 17: 17 New
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          I mean that in the battle against each other they were equal ....
          1. Sergey Zhikharev 27 March 2020 17: 26 New
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            Fighter or gun systems?
            Although - yes, both options are generally equal.
            1. Zaurbek 27 March 2020 17: 27 New
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              Therefore, the caliber of guns must be considered together with the task for fighters in general.
      2. Amateur 30 March 2020 15: 36 New
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        On the Mig-15 2x20mm and 1x37mm ....

        On the MiG-15 there were 2x23mm NS23 and 1x37NS37.
        1. Zaurbek 30 March 2020 18: 33 New
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          On Sabers after Korea they put 4x20mm
  • The comment was deleted.
  • mark1 27 March 2020 17: 39 New
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    In modern aerial combat, the enemy is in the scope for a split second, and this is why the maximum rate of fire of the guns and the time of reaching the maximum rate of fire come out in the first place. Here our GS-301 is the best.
    It is not entirely clear why the Americans have such a solid ammunition for Vulcan - although ... the supply does not pull in a pocket.
    1. 3danimal 30 March 2020 09: 59 New
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      But what prevents to untwist the block of trunks of "Volcano" in advance?
      1. mark1 30 March 2020 10: 08 New
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        Yes, even before take-off. Another feed should work.
        1. 3danimal 30 March 2020 13: 02 New
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          You are biased. Feed should earn on any gun.
          I mean that the mode of promotion of trunks can automatically turn on when the gun is activated: when the sighting "funnel" is switched on to the ILS, or when the appropriate distance is reached in the BVB mode (when the point of meeting the route with the target is already calculated).
          And here - the higher the density of the queue, the better. And even one or two missed 20mm shells will drastically reduce combat efficiency (violation of aerodynamics, damage to the engine, cockpit) or withdraw from battle.
          It's just their vision of an aircraft gun: 20-25mm, quick-firing, with high ballistics.
          The French, Germans, Russians (conditionally) have a slightly different approach.
          1. mark1 30 March 2020 17: 21 New
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            Quote: 3danimal
            Feed should earn on any gun.

            Only on different guns, the time to reach the maximum mode is different, until the kinematics of the “volcano” goes into the production of the first shot with the GS-301, 3-7 shells fly, in the future you can seed the sky as much as you like with lead - the target has already left the sight ...
            1. 3danimal 30 March 2020 18: 23 New
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              You have not heard: no one shoots from the gun at an arbitrary point in time, first the corresponding button / toggle switch is turned on and the fuse is removed. At this moment, there is a promotion of trunks. (In a split second) When it is not needed, the fuse is put back and rotation stops.
              On the F-22, this is even more relevant, because there opens (also, at the time of removal of the fuse) a special sash that completely hides the gun.
              In addition, shooting is not performed by eye (in a moving position on a moving target - try at a distance of 500+ meters), when the gun is activated, a special sight (funnel) is displayed on the HUD, and in the BVB mode - a floating sight mark and lead point.
              1. mark1 30 March 2020 18: 43 New
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                I didn’t hear it, you didn’t understand it. But it’s probably better for me not to explain, I hid the source somewhere, I won’t find it. Googling ...
                1. 3danimal 31 March 2020 01: 19 New
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                  Then explain what I did not understand? By the moment you press the trigger, the gatling having an EXTERNAL drive is already spinning. With a gas engine, everything is different, it really will begin to spin up from the first shot. This is the difference between M61 and GSH-23-6.
  • 3danimal 30 March 2020 15: 17 New
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    For GS-30-1, the barrel resource is 2200 rounds, with a mass of the gun 44 kg. For M61A2 - 250000 rounds. And it becomes clear, due to which (in many ways) we achieved weight characteristics: the use of a thinner and lighter barrel.
    1. agond 22 May 2020 09: 00 New
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      Quote: 3danimal
      For M61A2 - 250000 shots

      This is a resource for the entire block of trunks, and there are 6 of them. that is, the resource of one should be 80000 shots, and this is a lot, they probably use low-temperature gunpowder.
      1. 3danimal 22 May 2020 23: 31 New
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        The quality of gunpowder, the quality of manufacture of the barrel and its massiveness. As well as the lack of a gas engine, soot from gases in it yes