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    2S35 Koalitsiya-SV 152mm

    GunshipDemocracy
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    Post  GunshipDemocracy on Sat May 30, 2020 3:17 am

    marcellogo wrote:
    Yes, I didn't say that it's impossible, only much more difficult to achieve such kind of performance in a wheeled vehicle.

    Fact itself that they need stabilized legs is a proof of it as many tracked ones didn't have them anymore.


    I quess that's the trade off between cost/mobility - on desert or urbanized areas wheeled howitzers have better mobility and dont need lorries to move.



    Now, if they are needed  just to achieve 360° coverage it would be an excellent news.


    I didnt frankly tracked howitzers firing 360 pics. But I guess support legs are just to absorb recoil and not pass it to truck suspension + stabilize center of gravity.
    GunshipDemocracy
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    Post  GunshipDemocracy on Sat May 30, 2020 3:29 am

    dino00 wrote:

    Thanks thumbsup  very useful.


    my pleasure Smile
    GarryB
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    Post  GarryB on Sat May 30, 2020 12:26 pm

    Firing Jacks are to direct recoil force into the ground rather than the trucks suspension.

    For tracked heavy artillery the suspension would be locked first to prevent damage from recoil.
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    Post  Hole on Thu Jun 11, 2020 5:57 pm

    2S35 Koalitsiya-SV 152mm - Page 19 Parad_15
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    Post  Hole on Sun Jun 21, 2020 1:21 pm

    2S35 Koalitsiya-SV 152mm - Page 19 Parade22
    dino00
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    Post  dino00 on Fri Jul 03, 2020 3:57 pm

    Interviews/ Article from TASS

    Fire raid with one gun." The Coalition-SV complex has surpassed world analogues


    https://tass.ru/armiya-i-opk/8785241 (in Russian)

    Russia’s latest Koalitsiya-SV artillery system to get new munitions

    The latest Koalitsiya-SV self-propelled artillery system outperforms the world’s best versions by key parameters, according to the developer


    https://tass.com/defense/1174457 (small piece English)


    Land Howitzer "Coalition-SV" will arm Russian warships

    https://tass.ru/armiya-i-opk/8876415 (Small piece English)




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    GarryB
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    Post  GarryB on Sat Jul 04, 2020 2:19 pm

    Nice.

    Have read reports from the past about adapting the naval 130mm gun used on the Bereg Coastal gun battery vehicle to the new 152mm ammo, but had not really seen any mention of actually using 152mm guns on ships again.

    A while back they did return the Sverdlov class cruiser to service so they could use its triple barrel 152mm guns for naval gun support roles... much like the US returned a few Iowa class WWII battleships with their 406mm guns for the same purpose, but honestly have not seen any mention of using bigger guns than the existing 130mm guns on naval vessels since.

    Ironically 10 rounds a minute is actually slow for a big naval gun but the naval gun turret is much bigger and much better automated to allow the much higher rate of fire to be not only achieved but also maintained for long periods.

    It seems they have eliminated the 76.2mm gun calibre but have introduced a 57mm gun due to improve ammo being developed for land based applications for the purposes of air defence.

    Such improved ammo would make the 57mm gun more useful as its range is much better than 30mm cannon rounds and it carries a substantial payload, but similar improved technology could also be applied to other calibres in use too... a nice airburst semi guided 152mm round would be interesting for use at extended range against low flying anti ship missiles or even small boats...
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    Post  Isos on Wed Jul 15, 2020 4:23 pm

    Found on twitter. The two on thee left are Koalitsiya SV but the first has a bigger or maybe just longer gun when the second has radar to calculate trajectory.

    2S35 Koalitsiya-SV 152mm - Page 19 Ec6bcz10

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    Post  LMFS on Wed Jul 15, 2020 7:25 pm

    Both on the left are the same, but from different years, there is some optical distortion on them.

    https://twitter.com/aviakurs/status/1283318531958898690
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    Post  GarryB on Wed Jul 15, 2020 7:41 pm

    That is an interesting picture.

    The two guns in the centre look thinner and shorter than the gun on the left.

    Optical lenses can distort image but as far as I am aware would not increase length and thickness like that...

    Perhaps new propellants mean the middle gun can be shorter and also lighter with the same performance or perhaps better than the one on the left...

    Propellent is a funny thing... burn rates can mean better velocity can be achieved in a shorter barrel because of the burn rate and pressure generated by a propellant type... the radar suggests a newer testing vehicle that is working on exterior ballistics rather than interior ballistics...

    (note interior ballistics refers to what happens inside the gun, exterior ballistics refers to how the projectile moves through the air to the target and terminal ballistics means effect on target...)

    Both on the left are the same, but from different years, there is some optical distortion on them.

    So it is a collage...?
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    Post  The-thing-next-door on Wed Jul 15, 2020 7:52 pm

    Look closely at the one on the left, the shadow of the gun is about the same length as the shadow of the others gun and if you look carefully at the proportions the one on the left seems to have be taken at a much closer distance to the vehicle than the other hence the gun and some other components look thicker and longer.
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    Post  LMFS on Wed Jul 15, 2020 8:39 pm

    GarryB wrote:So it is a collage...?

    Yes, all these pictures are collages. But I supposed at least they were taken the same year from the same position, which they are not. So no real value to accurately measure those vehicles angry
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    Post  Isos on Wed Jul 15, 2020 8:57 pm

    Yeah it seems it was badly photoshoped.

    You can also compare the head of the driver which is much bigger on the left. But what is confusing is that the hull has the same dimensions.
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    Post  LMFS on Wed Jul 15, 2020 9:41 pm

    Isos wrote:Yeah it seems it was badly photoshoped.

    You can also compare the head of the driver which is much bigger on the left. But what is confusing is that the hull has the same dimensions.

    They may have taken from different height and even different horizontal positions and then been adjusted based on the hull, size of the road marks etc., this would cause cannon and other details to be distorted.
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    Post  GarryB on Thu Jul 16, 2020 5:35 am

    Look closely at the one on the left, the shadow of the gun is about the same length as the shadow of the others gun and if you look carefully at the proportions the one on the left seems to have be taken at a much closer distance to the vehicle than the other hence the gun and some other components look thicker and longer.

    Gun elevation would effect the shape of the shadow and a different angle of sunlight at a different time of the day could make a short barrel look longer and thicker than a longer and thicker barrel.

    When you combine two images into the same image there are all sorts of distortion tools in photoshop to make it look like it is really there, but the fact that it wasn't there means no conclusions can be drawn at all... it renders it totally useless... not even a passing interest.

    And that reminds me of similar images produced of the other vehicles which now come in to question... bugger...

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