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    RS-24 'Yars' (SS-29)

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    franco

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    Re: RS-24 'Yars' (SS-29)

    Post  franco on Fri Dec 16, 2016 10:15 pm

    George1 wrote:
    In 2016 the Strategic Missile Forces put on combat duty 23 launchers missile system "Υars".

    Comment bmpd. Thus, by the end of 2016, armed with Russian Strategic Missile Forces must be presumed, 96 launchers for the missile complex RS-24 "yars" (presumably, 78 silo and 18 mobile).

    http://bmpd.livejournal.com/2327410.html

    Plus the 60 silo and 18 mobile Topol-M. Getting close to 200 modern ICBM's.
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    Benya

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    Re: RS-24 'Yars' (SS-29)

    Post  Benya on Thu Dec 22, 2016 9:23 pm

    Four new Russian Missile Forces with Yars ICBM sytems on combat duty

    Russian Defense Minister Sergei Shoigu stated that four new regiments of the Russian Strategic Missile Forces, were put on combat duty in 2016 said Thursday.


    The Yars ICBM during a military parade (Photo Wikipédia)

    Four new regiments of the Russian Strategic Missile Forces, armed with Yars intercontinental ballistic missile (ICBM) systems, were put on combat duty in 2016, Russian Defense Minister Sergei Shoigu said Thursday. "Four new regiments, armed with mobile Yars missile systems, were put on combat readiness," Shoigu said.

    "Four new regiments, armed with mobile Yars missile systems, were put on combat readiness," Shoigu said.

    The RS-24 Yars also known as RT-24 Yars, NATO reporting name: SS-29) is a Russian MIRV-equipped, thermonuclear weapon intercontinental ballistic missile first tested on May 29, 2007, after a secret military R&D project, to replace the older R-36 and UR-100N that have been in use for nearly 50 years. RS-24 is a missile that is heavier than the current Topol-M, and which some reports say can carry up to 10 independently targetable warheads.

    Source Sputnik

    Source: Arrow http://www.armyrecognition.com/december_2016_global_defense_security_news_industry/four_new_russian_missile_forces_with_yars_icbm_sytems_on_combat_duty.html

    Arrow

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    Re: RS-24 'Yars' (SS-29)

    Post  Arrow on Fri Dec 23, 2016 4:21 pm

    RS-24 is a missile that is heavier than the current Topol-M, and which some reports say can carry up to 10 independently targetable warheads. wrote:

    This is old reports. RS-24 weighs the same as Topol M and carry only 4 warhead.
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    kvs

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    Re: RS-24 'Yars' (SS-29)

    Post  kvs on Fri Dec 23, 2016 11:45 pm

    Arrow wrote:

    This is old reports. RS-24 weighs the same as Topol M and carry only 4 warhead.

    The assumption that it has the same solid fuel as the Topol M is not backed up by anything. It
    has been a long time since the Topol M was introduced. Chemical engineering moves on. You
    can see this evolution by comparing Soviet and relatively recent solid rocket fuel characteristics.
    For the same weight the newer Russian variants are twice as energetic.

    Russia is not going to be giving out the fuel specifications for general consumption. It is a high
    level military secret and Wikipedia level analysis is worth squat.

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    Re: RS-24 'Yars' (SS-29)

    Post  Arrow on Sat Dec 24, 2016 12:35 am

    According to the START declaration RS-24 has that same throw weight, missile weight and range as the Topol M. This is MIRV version Topol-M. So propably RS-24 use very similar solid fuel.
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    franco

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    Novosibirsk Strategic Rocket division to be completely rearmed with the new Yars ICBM by years end;

    Post  franco on Tue Mar 21, 2017 10:17 pm

    Novosibirsk Strategic Rocket division to be completely rearmed with the new Yars ICBM by years end;

    https://ria.ru/defense_safety/20170321/1490473770.html
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    George1

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    Re: RS-24 'Yars' (SS-29)

    Post  George1 on Thu May 25, 2017 10:29 am

    MOSCOW, May 24. /TASS/. Nine missile regiments of the Russian Armed Forces have been rearmed with modern Yars intercontinental ballistic missile (ICBM) systems, Defense Minister Army General Sergei Shoigu said on Wednesday.

    More:
    http://tass.com/defense/947377


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    Big_Gazza

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    Re: RS-24 'Yars' (SS-29)

    Post  Big_Gazza on Tue Sep 12, 2017 4:19 pm

    Russia fires Yars ICBM at test target 6,000 km away

    Russia has successfully completed a test launch of a new-generation RS-24 Yars intercontinental ballistic missile from a silo at the Plesetsk Cosmodrome in northern Russia.
    “The main purpose of the launch is to confirm the reliability of rockets of the same class. The warheads successfully reached their target – the Kura testing range in Kamchatka. All aims of the test were achieved,” said a statement from Russia’s Defense Ministry.

    https://www.rt.com/news/403058-yars-icbm-test-fired-russia/
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    George1

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    Re: RS-24 'Yars' (SS-29)

    Post  George1 on Wed Oct 04, 2017 1:28 pm

    Yars launch in September tested parallel deployment of warheads



    It appears that we have an answer to the question of what kind of "experimental warheads" were tested in the September 12 Yars launch. And a confirmation of a guess made on Twitter by @artjomh shortly after the test. The image above is from that post - it's from a textbook they use at the Bauman University. According to The Diplomat's Ankit Panda, Russia tested "an independent post-boost vehicle (IPBV) configuration for a three-warhead version [of the Yars ICBM]." The Bauman textbook calls it "an RV with independent (parallel) deployment." As can be seen from the image, each RV is sitting on top of its own mini-bus, which is different from a more common configuration, when one bus deploys RVs one after another.

    There is no doubt that this project was justified as a response to missile defense and it indeed could be an effective countermeasure, especially if an RV is attached to its mini-bus through most of the midcourse phase (which may or may not be the case). Even small maneuvers would make it difficult for an interceptor to catch the RV. But probably not impossible - a lot would depend on the divert capability of the mini-bus and the interceptor.

    There is no free lunch, of course. Small mini-buses are probably heavier than one big one, so a missile would carry fewer warheads - three in this case instead of four that Yars is believed to normally carry. And these three warheads are probably smaller (although it hardly matters unless you try to hit missile silos, which is not Yars' mission). On the balance, I think this could be a useful anti-missile defense capability, but it's not a game changer. As far as effectiveness is concerned, it's hard to beat an old proven countermeasure - more warheads and decoys. But it is also a good illustration to the futility of the entire missile defense enterprise - it is much easier for "rocket men" to come up with new ideas than for missile defense to find a way to respond.

    http://russianforces.org/blog/2017/10/yars_launch_in_september_teste.shtml


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    Austin

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    Re: RS-24 'Yars' (SS-29)

    Post  Austin on Wed Oct 04, 2017 2:01 pm

    I wonder in parrell seperation system the Independent BUS with Warhead can re-enter the atmosphere at any phase of flight by that I mean mid-course or just post 1st or Second stage.

    That would be an amazing achievement because you would not know what the target is and in which part of flight might one of the warhead seperate and re-enter the atmosphere manouvering its way in space

    Austin

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    Re: RS-24 'Yars' (SS-29)

    Post  Austin on Thu Oct 05, 2017 8:46 am

    I wrote my opinion on Russian Forces on why its a game changer hope they post it

    Yars launch in September tested parallel deployment of warheads

    http://russianforces.org/blog/2017/10/yars_launch_in_september_teste.shtml

    It would be a game changer to the extent that it would allow the RV to detach in mid-course of flight or post 3rd stage or for that matter even after boost phase ends and 2nd stage starts.

    It depends on the target one chooses and in which phase of flight , An independent guidance/propulsion/warhead means you can let the RV fly all the way to target with greater accuracy , maneuverability and during any stage of BM trajectory

    The Decoys/Jammers would still be part of the flight should they choose to burn all the 3 stages for longest range and let the 3 RV separate post 3rd stage burn out , it gets rid of heavy PBV and afford more space to carry larger RV but in less numbers
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    GarryB

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    Re: RS-24 'Yars' (SS-29)

    Post  GarryB on Thu Oct 05, 2017 11:09 am

    Separate buses would allow gliders to enter the atmosphere at different points in the trajectory which means the defence problem becomes harder... in fact you could deceive the enemy and release a glider short but at a shallow angle and high speed so it skips off the atmosphere and back up into space... any interceptors launched before it skipped would have not chance of interception as the difference in trajectory would be enormous...


    Separate buses for each warhead should allow very high precision reducing the need for very powerful warheads too.


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    flamming_python

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    Re: RS-24 'Yars' (SS-29)

    Post  flamming_python on Thu Oct 05, 2017 12:03 pm

    Can someone fill me in on what a bus actually entails?

    Is it just a bridge/interface that can seperate from the main platform and thus together with its warhead come back down from orbit and towards a target?

    Does it have its own thrusters or deployable wings?
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    GarryB

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    Re: RS-24 'Yars' (SS-29)

    Post  GarryB on Sat Oct 07, 2017 10:45 pm

    The bus has changed over the years from different models.

    The first missiles just had one warhead so there was no need for a bus.

    The MRV option where multiple warheads were fitted to one missile but no separate guidance was used was deployed simply because in terms of hitting hard targets like a tank armour the biggest heaviest penetrator is best, but when the target is soft like a city then one big warhead is not efficient... all the energy is concentrated in one area so you don't cover a wide area as efficiently. A cluster munition design where several warheads spread out just before impact spreads the destruction far more efficiently.

    The idea is to have a bus, or a simple platform that all your warheads sit on in the nose of the missile so that a minute or two before impact the warheads are released to fall separately to spread the impact points fairly evenly around the point of aim of the missile to spread the destruction.

    4 100Kt warheads spread around the target area can do rather more damage to soft targets like cities than a single very powerful warhead... just like 200 x 2.5kg HE Frag munitions will kill people out in the open more efficiently than a single 1,00kg bomb even though the HE weight is double for the single bomb it overkills in the centre and lacks fragmentation range to get the the spread out targets the mine-lets can kill or injure.

    In that case the bus does not manouver, it just holds the warheads together in a package until it is a fixed distance from impact and then releases the warheads.

    In the case of the MIRV bus the bus actively manouvers between releasing warheads like a bomber manouvers to release a bomb to each target it is attacking.

    Obviously each target must be on its flight path or near to it, but the bus needs to know where it is in space and where its targets are and to be able to manouver to release the warheads on optimal flight paths to hit the targets.... the warheads generally just fall and have no propulsion or guidance of their own.

    MaRV warheads have guidance and manouver capability for the warheads which achieves much better terminal precision and the ability to make themselves a difficult target for ABM system as they don't fly a predictable flight path (ie not ballistic).


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