Military Review

The project of a promising wheeled self-propelled guns from Rheinmetall

The project of a promising wheeled self-propelled guns from Rheinmetall
SPG layout on HX3 chassis arr. 2021

The command of the Bundeswehr considers it necessary to further increase the firing range of field artillery. In this regard, the Zukünftiges System Indirektes Feuer Mittlerer Reichweite (“Promising medium-range indirect firing system”) program is currently underway, the goal of which is to create a new self-propelled howitzer with improved performance. Rheinmetall has already offered its own version of such an ACS.

Project development

In May 2021, the Rheinmetall MAN Military Vehicles (RMMV) joint venture for the first time introduced the promising family of HX3 military platform trucks. Various variants of such chassis with one or another target load were demonstrated. In particular, the 10x10 chassis became the basis for self-propelled guns with a howitzer in the turret. However, the details of this project were not given at that time.

At the Eurosatory 2022 exhibition, Rheinmetall presented an experimental self-propelled gun, and also revealed some information about it. So, it became known that it is being created to participate in the Bundeswehr ZSIFMR program. The aim of the project is to develop a wheeled self-propelled gun with improved mobility and increased fire performance. At the same time, it is already planned to develop the project in the distant future, aimed at further growth of key parameters.

In December last year, Rheinmetall presented new materials on its project for the so far unnamed self-propelled guns. According to the publication European Defense Review, they named the main participants in the project and revealed the features of the development organization. Some technical details that were previously unknown are also given.

Self-propelled gun with a 60 klb gun, 2022

The new project of the German self-propelled guns is being created by several companies from the two countries. The chassis was presented by the German joint venture RMMV, the artillery unit is being developed by Rheinmetall, and the fighting compartment as a whole is being made with the participation of the Israeli company Elbit Systems. The latter provided its developments on the SIGMA / Roem project and is now helping to adapt them to the requirements of the Bundeswehr.

By joint efforts, the companies have already worked out the issues of using a wheeled chassis and installing a new fighting compartment on it. Now a full-fledged tower is being created with all the necessary devices and functions, as well as the potential for modernization. The current version of the project uses the existing artillery unit and simultaneously studies the possibility of creating new guns. Another way to increase the range should be new shells and propellant charges.

Technical features

Rheinmetall chose the latest five-axle chassis of the HX3 family as the basis for the self-propelled guns. This is a cabover car with a MAN D26 diesel engine and a transmission from ZF. The main chassis systems are controlled by the integrated MAN EE-Architecture system. At the request of the customer, an armored cab can be used and mine protection can be installed.

The HX3 10x10 chassis is capable of carrying various loads; the gross vehicle weight can reach 45-50 tons. This ensures high mobility on the highway and sufficient off-road mobility.

Aft of the chassis, above the three axles, is a payload called the Artillery Truck Interface (ATI). This is a platform with folding jacks and a fully revolving turret with weapons. A similar layout is well known from other projects, and specific units were taken from the Israeli SIGMA self-propelled guns.

The previously shown prototypes of the German self-propelled guns received a 155-mm howitzer, made on the basis of a serial gun from the PzH 2000. This is a rifled gun with a barrel length of 52 klb, a multi-chamber muzzle brake and a 23-liter charging chamber, made according to the requirements of the current NATO Ballistic Memorandum.

Charging is done automatically. Along the sides of the fighting compartment there are mechanized stacking: on the left there are 40 shells, on the right - 192 modular propellant charges. Packings are placed in armored boxes and have external kick-out panels. The supply of ammunition to the gun is carried out using manipulators; manual loading is possible. Declared rate of fire up to 8 rds / min.

The fighting compartment is equipped with a fire control system from Elbit Systems. It includes a computer, communication and navigation facilities, etc. Provides reception of target designation on standard NATO lines, calculation of data for firing and automatic aiming control. A programmer is also being introduced to work with guided projectiles and fuses.

Rheinmetall is already working on new weapon variants. So, a 155-mm 52-caliber howitzer with an enlarged charging chamber was created. Due to this, it is proposed to increase the propellant charge and increase the firing range. A longer gun is also being developed - it will receive a 60 klb barrel and an even larger chamber. Such a howitzer will be able to send a conventional projectile to a distance of at least 45-48 km. Active-reactive ammunition will give a range of 80-82 km.

The layout of the fighting compartment of the SIGMA self-propelled guns and the new vehicle from Rheinmetall

As part of the ZSIFMR program, a number of new ammunition is being developed. Several new 155-mm shells are being created by the Rheinmetall forces at once. In the short and medium term, the company plans to offer the Bundeswehr "blanks" with improved aerodynamics and increased range, active-reactive, programmable and guided munitions, etc. Their exact characteristics will depend on the length of the gun.

Prospects for Directions

The Israeli project Elbit SIGMA has now advanced quite far. Experienced wheeled self-propelled guns with an ATI fighting compartment and a gun with a length of 52 klb were successfully tested and were recommended for adoption by the Israel Defense Forces. The first batch of such equipment is expected this year, and a total of one hundred self-propelled guns will be built.

The unified German project is still at the stage of development work. At the same time, prototypes and prototypes in various configurations already exist, are tested at test sites and are demonstrated at exhibitions. So, in the first materials about the HX3 family of vehicles, an self-propelled gun with a 52-caliber gun appeared, and last year they showed a model of a howitzer with a 60-caliber barrel.

Probably, in the near future, all variants of the self-propelled guns will reach the test site and enter full-fledged sea and fire tests. After that, it will take some time to fine-tune the design. Depending on various factors, Rheinmetall's unnamed wheeled self-propelled guns will take their final form in the second half of the decade. Then the Bundeswehr will decide whether to take it into service.

Corrected projectile М1816А1

The future of this project is still unclear. But the published materials allow us to imagine how the prospects of self-propelled artillery are presented abroad, and how they are going to develop it in the near future. Judging by the project from Rheinmetall and Elbit, in general there are several main tasks. This is a further improvement in mobility, an increase in range and an increase in shooting accuracy.

The increase in mobility due to the wheeled chassis is not surprising. However, Rheinmetall seems to be placing such a combat vehicle on a five-axle vehicle for the first time. Whether such a base will show the required characteristics is unclear. There are no fundamentally new layout solutions, and the ACS has an optimal design.

Of great interest are plans to create new guns with an increased firing range. The length of the barrel is proposed to be increased from 52 to 60 klb, as well as to increase the volume of the propellant charge. The creation of such a weapon is obviously difficult, but the successful solution of this problem will give the army new combat capabilities. The same applies to new types of ammunition. Despite the complexity and technical risks, they will provide significant benefits.

Plans for the future

Thus, the Bundeswehr is already thinking about the further development of self-propelled artillery and has launched a program, the result of which in the indefinite future will be the start of rearmament. In turn, the industry began to develop real projects, taking into account the requirements of the army and with a reserve for the future. So, with foreign assistance, Rheinmetall developed and brought to the stage of the first tests a new wheeled self-propelled guns.

So far, the unnamed project of the German self-propelled howitzer is of some interest from a technical point of view. It offers an interesting combination of already known solutions and new components, and also shows how artillery can develop in the future. How correct are the applied engineering solutions, and what prospects such a project has, time will tell.
Photos used:
Rheinmetall Defense, European Defense Review

Subscribe to our Telegram channel, regularly additional information about the special operation in Ukraine, a large amount of information, videos, something that does not fall on the site:

Dear reader, to leave comments on the publication, you must sign in.
  1. cat-begemot
    cat-begemot 20 January 2023 03: 42
    One question is interesting to me - wheeled artillery is mobile, but where are they going to ride it? And if the potential enemy is Russia, then it seems to me that the wheel systems are clearly inferior to tracked ones. Or is this again a blitzkrieg technique?
    Focusing on high-precision weapons with their mass use will very quickly deplete the economy that produces them, and in any more or less long-term confrontation, it will be very difficult to achieve mass production comparable to towed field artillery.
    1. Monar
      Monar 20 January 2023 05: 09
      Are there no roads in Russia? And do you think that Germany is not able to create such a chassis with a sufficiently high cross-country ability? Let me remind you that the same "Poplars" are dragged on a wheeled chassis. And not on concrete highways. And I have not heard of a tracked chassis for them.
      And high-precision guidance systems are getting cheaper year by year. With increasing mass. Plus a reduction in weight and size indicators. When they do not occupy half of the projectile, but fit into the dimensions of the fuse.
      1. Georgy Sviridov_2
        Georgy Sviridov_2 20 January 2023 11: 27
        It's a little different here ... Colonial wars, this is understandable. But a major conflict, it is possible to mill conventional shells in virtually any manufacturing facility, but if an enemy missile destroyed a factory that produced a high-precision company, it would be impossible to quickly restore production. And if the reception and processing of data from satellites is destroyed, and GPS correction is not possible, then it’s a disaster.
        1. Monar
          Monar 20 January 2023 16: 06
          As far as I know, shells are not milled. And they sharpen. :) Yes, and there are already very few lathes that can be quickly evacuated and put in the open.
      2. bayard
        bayard 21 January 2023 02: 48
        Quote: Monar
        Do you think that Germany is not able to create such a chassis with a sufficiently high cross-country ability?

        The Germans have long created the excellent tracked self-propelled guns "Panzer-2000", which is considered the best in the world. In fact, this is an improved turret for an already wheeled chassis, which is much less dependent on auxiliary means of transportation like a tracked one (on roads only on trailers). Since these are very long-range self-propelled guns, they will not have to move often in the near rear areas in plowing and there will always be a sufficient choice of positions for firing. And I would very much like to see wheeled self-propelled guns with the Coalition turret in the composition of our Armed Forces. And I would also like to see an analogue of the French "Caesar" with a "Coalition" gun as soon as possible - as a replacement for towed artillery.
        Self-propelled guns on a wheelbase are much more mobile and unpretentious, capable of making marches for many hundreds of kilometers under their own power, and have a much longer chassis resource. This is not an alternative to tracked self-propelled guns, but their addition and partly an alternative to towed artillery.
        Quote: Monar
        "Poplars" are dragged on a wheeled chassis. And not on concrete highways. And I have not heard of a tracked chassis for them.

        In general, when choosing a chassis, they also considered a caterpillar-double link based on two tank ones, and even tested such a chassis. But still chose the wheel. And they turned out to be right.
    2. svp67
      svp67 20 January 2023 05: 52
      And if the potential enemy is Russia, then it seems to me that the wheel systems are clearly inferior to the tracked ones.
      Sorry, but modern armies are saturated with wheeled vehicles, so I don’t see where you see the problem here. This is not a tank, this installation does not need to accompany its infantry with "fire and caterpillars." The firing range completely allows her to find areas of firing positions, where it will be possible to advance on wheels.
      But note that the car is fully armored, that is, they are primarily thinking about saving the lives of the crews.
      1. Simple
        Simple 20 January 2023 11: 08
        Quote: svp67
        First of all, they think about saving the lives of the crews.

        Self-propelled guns with such characteristics are piece goods.
        Extra composite armor will eat up a little in price, and with hypothetical counter-battery fire, an armored self-propelled gun will have more chances to "stand on slippers".
    3. Luminman
      Luminman 20 January 2023 06: 05
      Quote: kot-begemot
      wheeled artillery is mobile, but where are they going to ride it?

      Shot - and quickly left. These are the realities of today's war...
    4. Negro
      Negro 20 January 2023 08: 46
      Quote: kot-begemot
      One question is interesting to me - wheeled artillery is mobile, but where are they going to ride it?

      Tracked vehicles are designed to interact with tanks. Wheeled for all other cases. If the infantry is on wheels, then just tracked self-propelled guns will restrain its mobility at different levels.

      Since there are more light infantry, and towed artillery no longer suits anyone, the demand for wheeled self-propelled guns is obvious. Now there is a clear boom in this niche.
    5. deddem
      deddem 20 January 2023 10: 47
      So this is not a self-propelled gun, but the reincarnation of Sfl, a self-propelled gun.
      Because a classic towed gun in a modern environment may stupidly not have time to withdraw from its position - while the truck is being driven up, while it is being fixed on a trailer - it may already arrive.
    6. Georgy Sviridov_2
      Georgy Sviridov_2 20 January 2023 11: 22
      I agree, but it makes no sense to shoot at 60 km with an ordinary projectile ...
      An expensive machine that is hard to produce and doesn't make much sense without precision-guided munitions.
    7. Zaurbek
      Zaurbek 20 January 2023 11: 44
      A gun with a barrel of 60 cal has a corresponding range. In addition to MAN, the Germans also have a caterpillar tractor with a cab, there is also an option on the chassis of the BTR Boxer. (all three options were presented 10 years ago with a similar German uninhabited tower). Chassis for every taste. And with the appropriate art system, we need to itch faster.
      This howitzer will shoot down our Malka self-propelled guns ... while we discuss the usefulness of the 152mm satellite-guided projectile.
    8. IVZ
      IVZ 20 January 2023 12: 24
      And if the potential enemy is Russia, then it seems to me that the wheel systems are clearly inferior to the tracked ones. Or is this again a blitzkrieg technique?
      Focusing on high-precision weapons with their mass use will very quickly deplete the economy that produces them, and in any more or less long-term confrontation, it will be very difficult to achieve mass production comparable to towed field artillery.
      Towed and self-propelled artillery, both tracked and wheeled, by and large, should not replace, but complement each other when solving various tasks on specific theaters. As for unification, the swinging parts, towers and chassis tend, as a rule, to unify with each other or with other types of equipment. There is no looping on high-precision, there is a normal process of improvement and development, and high-precision is also not a replacement, but an addition to mass ammunition.
    9. Canna Steinfeldgrubber
      Canna Steinfeldgrubber 20 January 2023 23: 34
      And why do you think that Germany is going to fight with Russia on the territory of Russia?
    10. TIR
      TIR 20 March 2023 19: 20
      Many will continue to try to prove with foam at the mouth that wheeled self-propelled guns are better. But in reality, the SVO showed that such systems are more susceptible to detection and undermining by kamikaze drones. Even knowing the approximate coordinates, you can find on the road map where she will go. Well, caterpillar self-propelled guns, if used correctly, are more effective. That's right, this is when they make several routes, on which there are caponiers with a through passage and a canopy closed from above from thermal radiation. After a few shots, such a sau will simply disappear from view.
  2. Oleg Ogorod
    Oleg Ogorod 20 January 2023 06: 28
    A high-precision projectile is not cheap, but regular projectiles cost a lot. And if you send 10 times more of them to hit the target with one, and the rest into milk ... you yourself can understand the economics of war.
    As for the wheels / tracks, Germany is not going to conquer Russia. Have tried already. They are more focused on the defense of NATO.
    But in Russia they have now begun to build wheeled self-propelled guns, for example Malva.
    1. Simple
      Simple 20 January 2023 11: 14
      Yes, yes, artillery is a purely defensive weapon. wassat

      It's like reading today in the German press like: "German weapons save lives."
  3. Monar
    Monar 20 January 2023 07: 01
    Question for the experts.
    And why (in the light of guided-unguided shells) does no one mention barrel wear?
    Yes, couch math. 1 managed in efficiency as 5 unmanaged. On the same barrel, it turns out that you can hit 5 times more targets.
    1. Falcon Buster
      Falcon Buster 20 January 2023 09: 42
      Because for the domestic military-industrial complex it is still exotic. Arta RF, like 70 years ago, works in squares. Even recently, a whole article on this came out on VO.
      But there is another case when Arta is accurate, but it is not enough and there are too many targets, as is happening now in Ukraine. And as a result, 15 modern self-propelled guns develop their resource in a month and are sent for repairs. There must be balance everywhere.
      1. Zaurbek
        Zaurbek 20 January 2023 11: 46
        The 60cal barrel itself and the enlarged chamber also give an increase in accuracy and range. And with corr shells, everything has long been calculated. And in some applications (counter-battery combat and the destruction of warehouses and headquarters) they are not achievable and are already comparable to Tochka-U type OTRK
        1. Simple
          Simple 20 January 2023 14: 13
          Barrel 60 cal. and an enlarged chamber means increased wear.
          1. Oleg Ogorod
            Oleg Ogorod 20 January 2023 19: 12
            Such a trunk implies advanced metallurgy.
            Finely welded steel with tricky additives. I'm not talking about chrome, nickel, molybdenum, vanadium. A type of boron and niobium. And others. who can help. Without unnecessary harmful elements such as sulfur and phosphorus.
            Further, deeper forging of trunks, precise boring and filigree heat treatment. With full control of the required quality and properties.
            But here comes reality.
            In Russia, this is done according to old recipes without any new tastes. I would say according to the old, but greatly simplified recipes as an economy.
            The theory and thought of weapons steel have almost been killed in our country. TsNIIM is no longer a cake. Bardin too. As well as practice on the ground.
            In the country of the once again victorious bureaucratic nomenclature.
            Our country for officials is just like a paradise. There was almost always.
            On the other hand, there are always different sides, light and dark, front and back, heads and tails, but at a distance of more than 50 km, it is cheaper and more practical to produce missile weapons and systems.
            It is clear that a projectile at a tremendous speed is difficult to bring down air defense, let's put it mildly, but with missiles it is a little easier in terms of interception. If the rocket flies like a straight blank.
            The problem of our army is that we did not have weapons to defeat 100 km. Point U, liquidated in the army, was also not an option, too large a charge. It is not always necessary to defeat certain equipment. The fact that the point is not always on point, and to compensate for this, and there was such a large charge. And one launcher one rocket, it's not effective. Even two.
            Tornado, so he always worked in the squares, and the precision ammunition for him was like armats on Red Square. museum specimens. Passing by museums.
            I have already said that specialists, doctors of technical sciences and candidates for them from the 46th Central Research Institute of the Ministry of Defense, which is responsible for developing a strategy for modern weapons in the Russian army, should be sent at their choice, either to cut the forest to Nosov in Kolyma, or the NVO zone with privates . Fight with the weapons that they themselves have identified as modern.
    2. Eule
      Eule 22 January 2023 22: 55
      ERFB-BB fully provide one three hundredth in range and one five hundredth in front, that is, all shells in an ellipse of 300x200m from 50 km. It is possible that with some tricks it is possible to double the accuracy.
      Quote: Monar
      no one mentions barrel wear?

      I didn't look for a manual for this gun, but usually changing the barrel requires a battalion workshop with a crane, a new barrel, and about an hour of time for adjustments. The barrel itself, if shells with composite belts, will serve about a thousand shots. An important plus of polymer belts is that they give non-linear wear. Copper abrades the barrel equally with every shot, and caprolon - at first there is almost no wear, and after 90 percent of the resource, rapid wear of the rifling begins.
  4. Mustached Kok
    Mustached Kok 20 January 2023 08: 12
    I want to note the successful layout of this self-propelled guns. If it enters service, it will definitely become a transitional link between wheeled self-propelled guns BEFORE it and after.
    If we recall the wheeled self-propelled guns of the "past" layout, then there was always the problem of the large dimensions of the vehicle (well, they were very long), we recall the same Archer. And here, having chosen as a basis the Chassis with 5 axles, where 3 axles are located under the tower, they have achieved a pleasant reduction in dimensions while maintaining stability. And the emphasis on high-precision projectiles, given the ever-increasing trend towards a decrease in cost, will lead to a reduction in the cost of hitting the enemy and a reduction in the cost of the barrel resource.

    Even if one high-precision projectile costs 50 bucks (the cost is taken from the M000 Excalibur projectile in large-scale production). It can be cheaper to use if it takes 982-1 projectiles to destroy a target, instead of tens or hundreds of regular ones. After all, not only can 2-20 shells cost more than 30 high-precision shell, but these 1 shells and the barrel resource will spend more than 30 shell. This means that from one gun, for one barrel, you can hit more targets. As a result, the massive transition to high-precision munitions reduces the army's costs in the entire chain of production for the needs of the army.
    1. Negro
      Negro 20 January 2023 08: 50
      Quote: Mustachioed Kok
      remember the same Archer

      The Swedes made an export version of Archer on the same platform.
      Quote: Mustachioed Kok
      there has always been a problem with the large dimensions of the machine

      Dana/Suzanna is unexpectedly small in real life.
      1. Bad_gr
        Bad_gr 20 January 2023 11: 55
        Quote: Mustachioed Kok
        I want to note the successful layout of this self-propelled guns. If it enters service, it will definitely become a transitional link between wheeled self-propelled guns BEFORE it and after.
        Our A-222 "Bereg"

        If they had replaced the tower with one from the "Coalition-SV" - it would have turned out to be a good option, in contrast to where the "Coalition-SV" tower on the KAMAZ chassis is being built.
        1. Zaurbek
          Zaurbek 20 January 2023 14: 17
          Now KAMAZ trucks are switching to the K5 bogie, there the chassis is similar to MAN. A new shell was put on him. There diesel 450-750 hp. Quarry workers began to make 10x4 five-axle. I think they will put it on. BAZ also has a 10x10 chassis
          1. Pivot
            Pivot 21 January 2023 23: 29
            The BAZ chassis is full of g ... but, I remember from BATs, I won’t say I don’t know about KAMAZ, but the MZKT is an excellent chassis, it has proven itself for many years of operation, and it can be repaired very easily.
        2. Oleg Ogorod
          Oleg Ogorod 20 January 2023 19: 43
          This is the Minsk chassis on the shore. 152 is also on the BAZ chassis.
          All is not well with the coalition. They looked at art before the NWO as a relic of the past. Although Donbass has been giving signals since 2014 that it needs to be developed.
          Putting a turret on a chassis is not such a problem as creating a powerful gun with an automatic loader for this in the required dimensions.
          And the coast, well, its caliber makes it useless to anyone, except for the mythical protection of the coast. From approaching enemy barges.
          However, the Second World War gave a powerful impetus to the development of military equipment, especially when the enemy was moving towards Moscow.
          And now officials are trying to revive the process. But they are primarily interested in the movement of public funds for this.
    2. Georgy Sviridov_2
      Georgy Sviridov_2 20 January 2023 12: 22
      Yes and no. We need more means of reconnaissance and guidance. For stationary targets, this is GPS, and these are satellites and terrestrial infrastructure (which can be hit). According to the technique, laser illumination from a UAV or spotters behind the front line is needed ... This is also money.
      This does not mean that such shells are not needed, of course they are needed. It's just that sometimes it's easier to screw up with ordinary cast iron and that's it. Not always, but sometimes.
    3. Akhr82
      Akhr82 21 January 2023 02: 09
      While the exact price of shells is unknown, this is fortune-telling on coffee grounds. And the effectiveness of the managed should not be overestimated, everything has limits on accuracy. Try to get into a meter-wide trench with a CVO of 4m. You get tired of counting money. And even if there is a shelling warning system, the effectiveness will still decrease.
      1. Passing
        Passing 21 January 2023 14: 05
        Funnel diameter from 152 mm to 3,5 meters. I would bet that even if the trench does not miraculously fall apart from a high-explosive impact (a stock of half a meter of soil is nothing), people in the trench will still die from increased pressure in the front of the shock wave.
  5. Eug
    Eug 20 January 2023 12: 52
    The orientation towards the ever wider use of high-precision weapons is obvious. Shooting conventional shells from such guns is very wasteful in terms of barrel life. And for some reason I did not see in the article the time of transfer from the transport position to the combat position and back.
  6. Mikhail Maslov
    Mikhail Maslov 20 January 2023 15: 52
    For some reason, I’m sure they will succeed. Pay attention to the cooperation of rather large and strong companies each in their industry. Yes, such self-propelled guns if they adopt quite modern and technologically advanced ones. And it’s important to develop new ammunition for it. We also need to develop faster new ammunition for "Malka"
    1. Adrey
      Adrey 20 January 2023 17: 26
      Quote: Mikhail Maslov
      We also need to quickly develop new ammunition for the "Malka"

      Worst thing imaginable. How many are left? Is it worth fencing a garden because of these units? "Malki" must be completed and scrapped. At one time, the gun was not bad, but its era is gone. "Normal" 152-155s are not inferior, or even superior, in range, but much lighter, more mobile and cheaper to manufacture and operate + more mass-produced. The power of a 150 mm projectile in modern conditions is quite enough to solve the main tasks facing it. Where it is lacking, tactical missile weapons and higher power bombs should be used.
      1. Oleg Ogorod
        Oleg Ogorod 20 January 2023 19: 27
        New peonies do not have to be made in the old version of the chassis.
        This is long-range artillery, which means she does not have to climb into the shit itself to shoot. There is always a piece of road or normal ground for travel. For example, for the wheel version. All the same, get up when firing on the jack-supports.
        The problem is that we don't have that most important piece of art.
        Electronic computer systems for targeting when receiving automated target designations.
        Not exhibition samples, but everywhere in the army.
        A compass and a walkie-talkie (cell phone) are of course good things, as is a pencil with a paper tablet. But not as effective.
  7. bk0010
    bk0010 20 January 2023 18: 32
    Why don’t they make not wheeled self-propelled guns, but towed ones, but not simple ones, but with all the bells and whistles (automatic folding-deployment, automatic feeding of projectiles, their own means of communication, guidance and topographic location)?
    Pros: 1) smaller dimensions and weight - it's easier with all the bells and whistles to fit into a wagon or transporter. Yes, you will need another wagon for a heavy truck, but this is less of a problem than the loss of strategic mobility or a decrease in performance to fit into restrictions. In addition, trucks can be in place in the national economy (and they don’t have to be dragged across the country), but the gun is unlikely actions) the truck can be used in the interests of the part. 2) No need to create a special truck that can withstand the recoil of a heavy gun. 3) If necessary, it is possible to organize towing by caterpillar vehicles. 4) With some normal design, the repair of such weapons will be easier: parts of the machine do not interfere.
    Cons: 1) Need extra. an engine or two for the gun itself. The rest would still have to be done for a wheeled self-propelled gun with the same capabilities. Shooting can be carried out without unhooking, if you need to quickly bring down. 2) Such a weapon is difficult to dig in and disguise, but it is possible that it is still easier than a wheeled self-propelled gun.
    1. Negro
      Negro 20 January 2023 22: 07
      Quote: bk0010
      Why they don’t make not wheeled self-propelled guns, but towed ones, but not simple ones, but with all the bells and whistles

      Because they do, only you don't know.

      Quote: bk0010
      Such a weapon is difficult to dig in and disguise, but it is possible that it is still easier than a wheeled self-propelled gun.

      Not relevant in high intensity warfare. In low-intensity - this is for the Americans, they have a lot of towed guns just for such a case.
      Quote: bk0010
      Shooting can be carried out without unhooking, if you need to quickly bring down.

      Nonsense. Naturally, the gun needs to be deployed so that it correctly transfers recoil to the ground. If the truck will take the recoil, then you need a special truck and a converted weapon. That is, you will come to the self-propelled guns.

      The meaning of wheeled self-propelled guns is simple - a gun costs at least 10 times more than a heavy chassis, and the cost of shells that it fires in a lifetime is hundreds of times higher. So you can not compost your brains, not invent a bicycle and take the opportunities that a normal chassis gives.
  8. Jackson
    Jackson 20 January 2023 22: 16
    In the same Germany, all machine tools, science, chemistry, materials science, instruments, equipment, engines, etc. All of the highest quality and in stock, what is missing - will be bought instantly around the world.
    Now they will shake themselves up and quickly make up for lost time in armament. And what do we have, the remnants of former luxury?
    1. Constantine N
      Constantine N 21 January 2023 08: 20
      if something unique and breakthrough does not appear, it will be bad
      1. agond
        agond 21 January 2023 21: 23
        The self-propelled guns in the pictures leave the impression of an unfinished layout, some kind of thin and long outriggers, the gun barrel is visually raised to a height of somewhere between 2.5-3 m above the ground, and at the same time an enlarged charging chamber. Obviously, there will be a strong rocking of the entire self-propelled guns when firing, therefore the rate of fire is limited to 8 rounds / min, and in general wheeled self-propelled guns have less body rigidity than tracked ones, which affects accuracy. The declared range of 80 km is possible only with active projectiles and most likely with elements for adjusting the trajectory in flight, otherwise there will be a lot of dispersion, and all this against the backdrop of the large dimensions of the self-propelled guns. By the way, what cut can it withstand without tipping over on its side when cornering or on uneven roads the center of gravity seems to be too high.
  9. Bogalex
    Bogalex 1 February 2023 22: 19
    Whether such a base will show the required characteristics is unclear. There are no fundamentally new layout solutions, and the ACS has an optimal design.

    If it is not clear whether such a base will even show the required characteristics, then where does the conclusion come from that its design is optimal?
  10. Oleg Olkha
    Oleg Olkha 9 March 2023 01: 34
    A month and a half has passed... "An excellent example of European-Israeli cooperation in defense industry was demonstrated today in the Israeli desert.
    Rheinmetall and Elbit Systems hosted delegations from Germany, Hungary, the Netherlands and the UK for a live fire demonstration efficiency in terms of maintenance and life cycle costs".
    1. Oleg Olkha
      Oleg Olkha 9 March 2023 02: 31
      The two defense industry leaders have partnered to provide European #NATO allies a superior wheeled SPH that offers unrivaled #range (+80km) and #firepower as well as maximum efficiency in terms of manpower and lifecycle cost.