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    Russian Ground Forces: News #1

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    BlackArrow

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    Re: Russian Ground Forces: News #1

    Post  BlackArrow on Thu May 01, 2014 7:19 pm

    I can't help but find a huge contradiction, hypocrisy even, between this statement:
    macedonian wrote:
    I've lived in America for some time,  
    and this statement:
    the Kleptocrasy that most Americans despise, their hypocritical foreign policy that makes many nations hate them, their blind support for oppressive regimes, their moral bankruptcy, their decadence and their apathy, the consumerist populace, etc. wrote:macedonian


    Last edited by BlackArrow on Thu May 01, 2014 7:51 pm; edited 1 time in total
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    macedonian

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    Re: Russian Ground Forces: News #1

    Post  macedonian on Thu May 01, 2014 7:44 pm

    BlackArrow wrote:I can't help but find a huge contradiction, hypocrisy even, betwen this statement:
    macedonian wrote:
    I've lived in America for some time,  
    and this statement:
    the Kleptocrasy that most Americans despise, their hypocritical foreign policy that makes many nations hate them, their blind support for oppressive regimes, their moral bankruptcy, their decadence and their apathy, the consumerist populace, etc. wrote:macedonian

    Contradiction?
    How do you reckon?
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    GarryB

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    Re: Russian Ground Forces: News #1

    Post  GarryB on Sat May 03, 2014 1:00 pm

    The only way I can think of to make a decently protected vehicle using a 3D printer would be some sort of resin based material that becomes a super strong plastic when its components are mixed.

    For very light vehicles steel can become ineffective because using very thin sheets of it makes it weak, but using a strong plastic that is 30 times thicker but weighs the same can be made stronger. ie say for example you have a sheet of steel 2mm thick that weighs 5kgs per square metre. For the same weight you might be able to use plastic material 60mm thick that would be much stronger structurally and more resistant to bending or impacts... that could be printed rather than built as pieces and assembled.

    Problem is that to print it, you need to liquefy it, which means a HEAT round would cut through it like a hot knife through butter...


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    Sujoy

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    Re: Russian Ground Forces: News #1

    Post  Sujoy on Sat May 03, 2014 6:05 pm

    GarryB wrote:The only way I can think of to make a decently protected vehicle using a 3D printer would be some sort of resin based material that becomes a super strong plastic when its components are mixed.

    Worth the effort . It is essential to remember a couple of things about mitigating the effects of severe blast waves on vehicles  .

    First it is not really an energy absorbing problem or energy redirection problem. There is a HUGE amount of energy in say one pound of TNT, let alone the typical anti-vehicle landmine or IED. As for the human, anti-personnel landmines are severely injuring the lower extremities more so that the torso .

    What is truly occurring in mitigating blast effects on vehicles is an Impulse transfer extension of time (spread the impulse over time to reduce the peak acceleration) and reducing the resulting surface pressure by reducing the "Reflection Factor" that occurs when a blast wave impinges on a structural surface.

    For example, in "ideal" air the reflection factor can be as large as eight . Therefore, a 1,000 psi impinging blast wave could induce almost an 8,000 psi surface pressure on the structure. Except, in a typical landmine "non-ideal" atmosphere (air mixed with the products of detonation) reflection factors as large as fifteen (15) have been measured (via transferred impulse.

    What is transferred impulse? How high does that 15,000 pound vehicle's CG jump? That is directly related to impulse.

    Those high reflection factors are measured against structural surfaces that do not move appreciably during the blast loading. Given that the blast wave almost always has a duration of less than a millisecond, even the motion of the structure is not enough to alleviate the peak reflected (surface) pressure. Yet, a crushable core in a sandwich construction, will cause the front surface to move (appreciably) during the loading and reductions of surface pressure in excess of twenty-five percent have been measured, as well as the spreading the acceleration profile.

    A several pound equivalent TNT detonation would require a few Inches of movement during the loading phase. Your liquid filled tubes do not provide that much motion before the front face will "bottom out".

    Also, these blast attenuation techniques must survive storage temperatures that by  range from minus 65 deg F to positive 220 deg F. That is an extreme range for most liquids, without freezing or boiling.

    Ergo , whatever technique you come up with , your technique should provide some level of blast induced response amelioration.

    Whether that amount of reduction is sufficient or cost-effective is the proof that you and your product must provide, throughout the Operational temperature extremes of -40 deg F to +180 deg F (as compared to the storage temperatures).
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    TR1

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    Re: Russian Ground Forces: News #1

    Post  TR1 on Tue May 06, 2014 10:24 am

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    Morpheus Eberhardt

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    Re: Russian Ground Forces: News #1

    Post  Morpheus Eberhardt on Wed May 07, 2014 9:37 am

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    Zivo

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    Re: Russian Ground Forces: News #1

    Post  Zivo on Wed May 07, 2014 3:00 pm



    And it has suicide doors!  Cool
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    flamming_python

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    Re: Russian Ground Forces: News #1

    Post  flamming_python on Wed May 07, 2014 9:32 pm

    WDF is that i the bottom right of the sketches, a lunar reconnaissance vehicle?
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    magnumcromagnon

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    Re: Russian Ground Forces: News #1

    Post  magnumcromagnon on Wed May 07, 2014 10:50 pm

    flamming_python wrote:WDF is that i the bottom right of the sketches, a lunar reconnaissance vehicle?

    Isn't it obvious? It's for the VDV Moonraker division. Cool 
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    Zivo

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    Re: Russian Ground Forces: News #1

    Post  Zivo on Thu May 08, 2014 1:43 am

    Uh, could it be a submersible truck?
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    Morpheus Eberhardt

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    Re: Russian Ground Forces: News #1

    Post  Morpheus Eberhardt on Thu May 08, 2014 2:19 pm

    Kolun










    Toros







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    Regular

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    Re: Russian Ground Forces: News #1

    Post  Regular on Thu May 08, 2014 10:36 pm

    Thanks for the pictures guys. Russia is really got into MRAP trend lately. Interesting designs, I hope that it gets at least chance to be exported.
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    magnumcromagnon

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    Re: Russian Ground Forces: News #1

    Post  magnumcromagnon on Mon May 12, 2014 4:31 am

    Zivo wrote:

    And it has suicide doors!  Cool

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    magnumcromagnon

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    Re: Russian Ground Forces: News #1

    Post  magnumcromagnon on Wed May 14, 2014 9:58 am

    Look's like the cost of manufacturing Ak's will drop by a significant margin, producing parts for Ak's will drop by a whopping 40%:

    Kalashnikov" buys 51% stake in the group "Synthesis-PD"

    The transaction cost of production parts drops by 40%

    Concern "Kalashnikov", belongs to the State Corporation Rosteh buys 51% stake in the group of companies "PD synthesis" - the only Russian manufacturer of metal products for MIM-technology using raw domestic producers.

    Amount of the transaction, the financing of which concern implement their own and loan funds, is more than 250 million rubles. It is assumed that it will be closed until the end of June 2014.

    "Partnering with" PD synthesis "is an important step in the modernization of production enterprise. Now 90% of the parts produced and refined manually. Using old technologies that are serious time and effort. Thanks to the experience of "Synthesis PD" we will be able to halve the time of the manufacture of parts and reduce production costs by more than 40%, as well as improve quality characteristics and increase production, "- commented CEO deal of concern" Kalashnikov "Alexey Krivoruchko.

    "Synthesis-PD" specializes in the manufacture of metal products for MIM-technology (from the English. Metal Injection Molding), ie by injection molding.  This technology is used as raw granulated balanced mixture of fine metal powders and polymer binder, which is called feedstock.

    With MIM-technology can manufacture parts weighing up to 100 grams in weight term may be increased to 400 g

    Attracting new partner will allow the concern to change the approach to the design of new products. Current technology does not allow for sophisticated design details to the extent necessary, it inhibits technological progress and makes it impossible to integrate the production of new engineering developments. Thanks MIM-technology, manufacturing of parts of any complexity takes a minimum of time and gives maximum precision in execution.

    http://rostec.ru/news/4513389
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    Morpheus Eberhardt

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    Re: Russian Ground Forces: News #1

    Post  Morpheus Eberhardt on Mon May 19, 2014 6:22 am

    Vitalij Kuz'min has done it again.

    http://vitalykuzmin.net/?q=node/564
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    TR1

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    Re: Russian Ground Forces: News #1

    Post  TR1 on Thu May 22, 2014 3:12 am

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    AlfaT8

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    Re: Russian Ground Forces: News #1

    Post  AlfaT8 on Thu May 22, 2014 3:18 am

    Looks like the upgraded T-72 that Russia "should" have gotten.  Neutral 
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    collegeboy16

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    Re: Russian Ground Forces: News #1

    Post  collegeboy16 on Thu May 22, 2014 8:42 am

    AlfaT8 wrote:
    Looks like the upgraded T-72 that Russia "should" have gotten.  Neutral 
    squint a little and it looks like a Le2 2a6. the protection levels wouldnt differ much too coz Relikt is awesome.
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    Zivo

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    Re: Russian Ground Forces: News #1

    Post  Zivo on Thu May 29, 2014 1:15 am

    I don't recall seeing this posted before.

    BTR variant with one of the new remote weapons stations. I think it's designed for the anti-sabotage roll for the nuclear forces.

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    Morpheus Eberhardt

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    Re: Russian Ground Forces: News #1

    Post  Morpheus Eberhardt on Thu May 29, 2014 1:36 am

    Zivo wrote:I don't recall seeing this posted before.

    BTR variant with one of the new remote weapons stations. I think it's designed for the anti-sabotage roll for the nuclear forces.


    It's designation is Tajfun-M.
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    Zivo

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    Re: Russian Ground Forces: News #1

    Post  Zivo on Thu May 29, 2014 1:37 am

    Just what we need, more Typhoon-M's.  Rolling Eyes 
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    TR1

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    Re: Russian Ground Forces: News #1

    Post  TR1 on Thu May 29, 2014 9:30 pm

    More interesting stuff:

    Up armored vehicles:







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    Zivo

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    Re: Russian Ground Forces: News #1

    Post  Zivo on Thu May 29, 2014 9:39 pm

    Do you have any idea how much it increases the armor?

    What's the largest round it could shrug off?
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    TR1

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    Re: Russian Ground Forces: News #1

    Post  TR1 on Sat May 31, 2014 1:39 am

    No idea, some ceramic material though. Probably similar to that other shot up BTR-80 shown earlier.



    BTR-82 with new remote turret.





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    magnumcromagnon

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    Re: Russian Ground Forces: News #1

    Post  magnumcromagnon on Sat May 31, 2014 1:52 am






















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