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Thread: Russia claims new tank invisible to radar/IR

  1. #481
    Resident Curmudgeon Military Professional Gun Grape's Avatar
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    Quote Originally Posted by jlvfr View Post

    On a similar note, how was it done on the M60A2, since the 152 had only 1 loader? I know the breech had some kind of screw mechanism that seemed to come out of a XIXth century naval gun, but that's it...
    The weapon that you/Steve are envisioning can fire 155mm howitzer ammo. A complete round for the 152mm low velocity gun weighed around 50lbs. The M-795 HE projectile alone weights 102lbs. Excalibur weights 106

    Quote Originally Posted by SteveDaPirate
    Like jlvfr, I was looking at the M60-A2 as a reference point. 152 mm cannon with a relatively stubby barrel that would avoid having a ton of mass hanging out where it's unsupported. I figure a 155 mm wouldn't be too much of a stretch from there.
    The short barrel, and low velocity charge left the M-60A2 with a range of 1.5km. Lots more pressure getting a standard 155 round out the tube. More propellant/pressure means longer and thicker tube.

    Put a 120mm mortar on a vehicle equipped with a javelin/Tow and you already have a system that performs better than a Starship. Without lots of R&D
    Its called Tourist Season. So why can't we shoot them?

  2. #482
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    Quote Originally Posted by Albany Rifles View Post
    DAMMIT STEVE!!!!

    Warn me before you post pictures of the Starship!!!
    How about a video then




    Oops wrong Starship

    Its called Tourist Season. So why can't we shoot them?

  3. #483
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    Yet another StarshipName:  NASA-2000Starship.jpg
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  4. #484
    Senior Contributor Monash's Avatar
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    Quote Originally Posted by SteveDaPirate View Post
    The Germans, Israelis, Russians, Czechs, and Americans all have Active Protection Systems demonstrated to be effective at intercepting APFSDS rounds with claims of anywhere from 30%-90% reductions in penetration after interception depending on the system.

    Good reading on the topic here: https://below-the-turret-ring.blogsp...-overview.html
    Thanks I read the details on the link. As I suspected (and correct me if I am wrong) a lot of the systems described didn't seem to handle solid perpetrators very well, if at all. Seems to me there is still work to be done in this field before APS are a matured technology and designers can comfortably start reducing passive armor protection om MBT's.

  5. #485
    Senior Contributor SteveDaPirate's Avatar
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    Quote Originally Posted by Monash View Post
    Thanks I read the details on the link. As I suspected (and correct me if I am wrong) a lot of the systems described didn't seem to handle solid perpetrators very well, if at all. Seems to me there is still work to be done in this field before APS are a matured technology and designers can comfortably start reducing passive armor protection om MBT's.
    It seems like it's the Wild West at the moment with a ton of different types of APS, but no real consensus on what types make the most sense.

    There are systems that appear to be effective against solid penetrators, but they largely seem to use HE blast or blast/frag grenades which are not going to be very friendly to nearby infantry or soft skinned vehicles. I'm not sure what the right mix will end up being. Perhaps buckshot style APS to defeat ATGMs and HEAT without slaughtering nearby infantry with ERA optimized for KE penetrators?

    I think the Raytheon Quick Kill system's use of small vertically launched interceptors makes a lot of sense as it gets around the vulnerability of other designs to repeated attacks at the same location. It also allows for a large number of interceptors to be "loaded" at once which allows for the possibility of the system selecting the appropriate warhead for the threat detected. An RPG might be best defeated with an interceptor that sprays a load of buckshot at it, where an incoming solid penetrator round would require an HE warhead to fragment it.

  6. #486
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    Albany Rifles's Avatar
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    Quote Originally Posted by SteveDaPirate View Post
    Hahaha!

    That bad eh? Was it mostly related to the MGM-51 or the tank itself?
    The only thing good about it was the hull. From the turret basket up it was a POS.

    Additionally, the M728 CEV also used a 165mm gun which fired a 40 pound HESH round for obstacle clearing. Like most of the Army's engineer vehicles, its was also a POS.

    https://en.wikipedia.org/wiki/Royal_Ordnance_L9
    Last edited by Albany Rifles; 18 Oct 17, at 18:31.
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  7. #487
    Senior Contributor Monash's Avatar
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    Solid perpetrators! Dam it I need to stop using my phone when replying to threads. That and relying on spell check to do my editing.

  8. #488
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    Quote Originally Posted by S2 View Post
    Never seen a cased 155mm round before but there's always a first time.
    For a bit of history:

    Somewhat interestingly the original Schneider Canon de 155C Modele 1915, while also using separate-loading ammunition in a two-stroke cycle had its propellant loaded in a brass cartridge case; unlike the competition (St. Chamond Canon de 155C Modele 1915) this also apparently used fixed propellant loads in the case - the St. Chamond guns basically just placed the powder bags into empty brass cases for loading instead, thus allowing it to vary the powder load.

    Name:  ww1-france-155mm-mle-1915-schneider-fortress-shell_1_dc64173c57722ba497d2901ad4593ec1.jpg
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    All 155mm artillery around since then is effectively based upon its successor model (Schneider Canon de 155C Model 1917) which replaced the cartridge cases with bags to save on material; the shells used with the above case should in theory still be compatible with modern artillery guns.

    Soviet interwar artillery - in 152mm - was based on the same breech (the 155mm Modele 1915 was developed from a 152mm howitzer) and thus retained the separate loading cased ammunition in guns that were operated until well after WW2 and in some countries are still used today.

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