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Wiedzmin

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Everything posted by Wiedzmin

  1. Wiedzmin
    btw, my bad, on this pic 900+mm area will be further from the point i marked, sorry for this
  2. Wiedzmin
    and T-72 ? turret designed to protect in +-30° arc it was posted by Khlopotov it does mention exact round and distances, and it's problem not for T-72B itself, but for all soviet tanks with 78degree roof. depending on point of hit, 25-30mm APFSDS can disable any tank from the front, so ? i'm not trying to say that soviet or any other tank "good/bad" most of tanks - shitty steel boxes designed in a way to get profit for factory which is making this junk, not for "saving crew lives" or something like this. and what protection does it gives? mantlet itself can't stop anything, it's 650kg box with speical armor insert in it,(and it's not 420mm los btw), so even it it gives 150-200 mm vs APFSDS(or you think mantlet itself gives 400 vs APFSDS?) and you add this to 230-280mm(which is have thinner parts) you will have what ? 380-480mm vs APFDS vs 370 ? is "not so weakened" or ? all this statements about "oh this mantlet is 100% better than this solution on Tseries/Mseries) based on what ? look at uppermost and lowermost edges of any tank, western or eastern... my main point that there is a tons of myths about any tank, but no one wants to get the truth about them because truth can be very dangerous for mental health of arguing people lol(take M60A1 for example)
  3. Wiedzmin
    like "850mm" for Leo2A4 turret is a LOS thickness of left(loader side) "cheek" only (physical will be something like 680-700mm, right will be even less ) "500" is a physical thickness of T-72A turret, which became 650-950 LOS depending of how far from center line of turret you measure it. in some places Leo2 turret have protection only against HMG and the source of this claim ? guess what, if turret RHA roof 45mm/78° is vulnerable for old soviet APFSDS, what will be if you hit hull roof of Leo2 which is 30mm/79-80° ? Leo AS1 as far as i remember started to cracking without "50-60 years" ? i'm not trying to defend someone or start hollywar, but all this "we have better tank A, and ugly tank B" is a waste of time and words if you/or someone doesn't have reports(and preferably from different sides of "conflict", to get the least biased assessment) proving some sentences
  4. Wiedzmin
    it's czechoslovakian made T-34-85
  5. Wiedzmin
    is there any real report proving that german WW2 tank sights were better(which model) that any other ? because early optics seems to be not very good, and later models with blooming of optical lenses was there only to resolve the problem with 20% light transmission(sights with flexible "head" have less transmission ), but no because it was "super cool sights"
  6. Wiedzmin
    cast and rolled. it's not very high,before you ask high hardness not always means super brittle german panzer IV front plate(30mm) has 600 on outer surface(face hadened) and 418 rest part(core) of front plate, 50mm plate on G model was 500-520HB but these plates often was brittle indeed
  7. Wiedzmin
    T-34 and JS-2 have 440-450 if US metallurgical test correct
  8. Wiedzmin
    FT.50-H-2 3 - infantry firing table for 45in + i have US specs on AP M2 cartridge which gives 853m/s IIRC
  9. Wiedzmin
    any progress ?:)
  10. Wiedzmin
    don't know where you get 455HB for serial postwar casted soviet turret, but T-62, T-72 and T-64 uses SBL-2 steel which has hardness up to 277HB(Impression Diameter - 3,65mm) and tensile strength up to 882MPa
  11. Wiedzmin
  12. Wiedzmin
    made pic for better understanding
  13. Wiedzmin
    pic from some forum, and it gives 2935 f/s for AP M2
  14. Wiedzmin
    FT.50-H-2 3 Cartridge, AP, M2 Muzzle Velocity, 853.4 M/S Remaining Velocity 0 Meters - 853 M/S 100 Meters - 813 M/S 1000 Meters - 482 M/S is there any FT on .50 AP M2 that gives 895m/s and remaining velocity on range ? I found only WWII era schedule but...
  15. Wiedzmin
    http://www.dtic.mil/dtic/tr/fulltext/u2/a317929.pdf Fire to Destruction Test of 5.56mm M4A1 Carbine and M16A2 Rifle Barrels
  16. Wiedzmin
    have question about 12.7x99 AP M2 cartridge WWII time books gives muzzle velocity for AP M2 - 895 m/s for 45in barrel, modern days firing tables and manuals gives 856 m/s for 45in barrel, which is correct, or both correct but 1st for WWII and 2nd for modern dayes cartridges ?
  17. Wiedzmin
    maybe someone have info about addon sight on 61 Mech Ratels?
  18. Wiedzmin
    it's posted by Jon Bernstein Armor Modeling and Preservation Society Social Group on FB
  19. Wiedzmin
    australian armor museum?
  20. Wiedzmin
    3 in hull creating new huge weakspot, 2 in turret
  21. Wiedzmin
    and higher res without watermark from Alexey Khlopotov blog
  22. Wiedzmin
    thank you, interesting
  23. Wiedzmin
    maybe some german speaking members can help with translation ? as i understand turret was jammed after 90mm HE strike " no hydr. operation possible, turret ball bearing blocked after a short turn. No visible effect on the crew represented by cardboard cylinder. The tank is initially no longer operational."
  24. Wiedzmin
  25. Wiedzmin
    this report give you source for it's claims. you can go to NARA and order research to get all blueprints from souce list. and ? Centurion mantlet have areas 300+mm which also serve as a gun cradle etc, but briths on their schemes show only 152mm as protective thickness soviet report stated that "mantlet-cradle" gives protection only from spall and bullets and says nothing about mantlet 115mm APFSDS resistant. report have sources, this sources are factory blueprints of M60A1 tank, such as: Turret Thickness Ispection Points dwg. 10911647(M60A1) Hull Thickness Ispection Points dwg. 10905702 (M60A1) etc if you want to argue with factory blueprints, well.... good luck to you
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