Zadlo
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Everything posted by Zadlo
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I've found some interesting issue People from Polish Institute of Organic Industry (IPO) have shown how important is front plate in protection against shaped charges. The liner loses the most of its energy in first 30% to 35% of its route in the armor. And because of that the best is when the front plate is made of material which has the best protection against shaped charges and is as thick as it's possible. In this case there were two arrays of metal (Ti-Al) composite tested. Both of them had the same weight but one version (V1) had thick (10mm) titanium layer on the face. The second one (V2) had this layer on the rear. The research has shown that V1 has better mass (Em = 2.04) and thickness efficiency (Ev = 1.55) than V2 (Em = 1.4; Ev = 1.15) against shaped charges. Composites alone had: - V1 - Em = 4.26, Ev = 2.14 - V2 - Em = 2.84, Ev = 1.43 Source: https://www.docdroid.net/YBkruhn/6wilk-badania-skutecznosci-obronnej.pdf
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- armor
- technology
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New tests of ERAWA https://www.docdroid.net/NYv1y1M/976082.pdf PG-7V, PG-7VM (330 mm RHA) - 96,7% of reduction (ERAWA-1), 98,6% of reduction (ERAWA-2) BK-14M (540 mm RHA) - 44,4% (ERAWA-1), 68,5% (ERAWA-2) BM-15 (300 mm RHA / 2 km) - 43,3% (ERAWA-2)
- 280 replies
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- armor technology
- explosive reactive armor
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StuG III Thread (and also other German vehicles I guess)
Zadlo replied to EnsignExpendable's topic in Mechanized Warfare
But there's one problem. Elbit's UT30MK2 hasn't passed climatic tests for Romanian army. Its FCS is going crazy in low temperature so this problem concerns also a MT30MK2 offered for Czechia. -
The Soviet Tank Thread: Transversely Mounted 1000hp Engines
Zadlo replied to T___A's topic in Mechanized Warfare
For anyone who doesn't understand some material acronyms there's a little glossary about Soviet / Russian glass textolite, glass wovens, sitalls and other glasses. http://skn27.ru/sitally/ STB - barium or lead borosilicate glass STL - spodumene glass STM - cordierite glass- 5,188 replies
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- soviet
- russian bias
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- soviet
- russian bias
- kharkovites get out
- kotin number 1 diva of ages
- kartsev did nothing wrong
- reminder that the is-7 had 8 machine guns
- reminder that uvz built more t-34s than khpz
- real life has a uvz bias
- make lkz great again
- t-72 over t-64 all day erry day
- t-80 worst mistake of lkz life
- the object 167t engine was better
- so was object 278 engine
- t-64 so weak it cannot handle glorious t-34 engine which conquered hitlerite germany
- t-64
- t-72
- heavy tanks
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Question: Do you have anything about Razor ERA presented recently by Plasan?
- 280 replies
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- armor technology
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With glass-filled polypropylene or polycarbonate? Are you sure? These are not elastomers.
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- leopard 2
- protection
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You're misleading two designs. Poles created NERA modules for BRDM-2 which consists of only two sandwiches. Add-on armor mounted on Rosomak uses composite similar to one used in soft inserts in ballistic vests.
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- leopard 2
- protection
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It's quite possible that so thin version of MEXAS is quite effective at Leopard 1 against shaped charges with up to 310mm penetration. Without any ERA or NERA. But I think the main purpose of that add-on could be protection against 40 x 365mm APFSDS which lacks in case of standard Leo 1.
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- leopard 2
- protection
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Borsuk's interior
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And option No. 3 - Anders with Brimstone And BMP-1 with Protector LW 30
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And option No. 2 - twelvefold Brimstone launcher on BMP-1 chassis.
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80s are coming back. K9 armed with two double Hellfire launchers.
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- challenger 2
- warrior
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United States Military Vehicle General: Guns, G*vins, and Gas Turbines
Zadlo replied to Tied's topic in Mechanized Warfare
If M1A2C would weight 66 t then it will probably receive sign with No. 73 or 75 because 66 t = 73 short tons. -
Light Missile System "Pirat" is after initial tests - and Poles made a top-attack 3rd generation ATGM (a'la LAHAT) from a simple Ukrainian beam-rider missile.
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Every T-72 after overhaul will receive thermal imager.
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Some things shouldn't be shown as unclassified. Turks aim to produce CTA (chromia-toughened alumina) armor. The weight of 1% CTA (4,01 - 4,03 g/cm3 calculated) and 5% CTA (4,06 - 4,08 g/cm3) seems to be too high to be used as personal armor, so it may be used as ceramic inserts in vehicle composite armor. https://www.docdroid.net/Yi8Rhcj/1-s20-s0272884219318565-main.pdf You can also see that the CTA is a bit violet when the pure alumina is colorless.
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Main Ground Combat System (MGCS) and Euro Main Battle Tank (EMBT)
Zadlo replied to FORMATOSE's topic in Mechanized Warfare
Poland will stop being interested when Germans say how much they must pay for R&D.- 390 replies
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- knds
- demonstrator
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The influence of casette's material density on ERA effective protection. The effect has been obtained in research work made by Rafael Ltd. Source: https://docdro.id/9C6cCya
- 280 replies
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- armor technology
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522mm LOS of armor (total thickness minus reactive layer) almost equals to 400mm armor sloped to 40 degrees.
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- russia strng tied edition
- unmanned madness
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It's very possible. Hahaha. Ceramics really depend on spall liner placed before the next layers. And size of tiles. But it's really easy to create ceramic armor with good multi-hit capability.
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- leopard 2
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That Franco-German patent is the oldest one which about using ceramics in armor. Younger patents (like Rheinmetall's from 1982) claimed to use only ceramics in aluminium package with air gaps between the layers. But ceramics with FRP placed before may be present in Ariete tank. And why this anti-radiation layer used aramid fibers to reinforce? Why this layer placed between two steel layers was able to stop 40x365mm AP from 100m? Rather NERA / NxRA + ceramics.
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- leopard 2
- protection
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Composite add-on armor created by Romanian ACTTM for MLI-84 IFV and P124 tanks. Version III is after trials, version II will be soon created.
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HSW will co-produce Rheinmetall's 120mm and 155mm guns. It could be second company which wants to produce barrels there (after BAE) - and new gunbarrel factory with planned forging line can produce barrels with length up to ~11 meters. https://www.altair.com.pl/news/view?news_id=28446&fbclid=IwAR0uMHOMif0q6noiwSDY_hGLFIsdX8Xk-AdRXAqqlE5bXqoTFpRbo4I_1L0
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- leopard 2
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Because for next 4 - 5 years Borsuk will exist in quantity of one vehicle. HSW (in 2013) wanted to build two prototypes but MoD refused that.