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Wiedzmin

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Everything posted by Wiedzmin

  1. 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."
  2. Wiedzmin
  3. 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
  4. Wiedzmin
    people don't understand their own measures and physics typical situation for all gamers mantlet get thicker only where it have "claw" for gun trunnion, the rest (and most of) the area simple 110-118mm of casted low hadness steel with holes for MG and optic. gun barrel etc. omitting the fact that getting hit into the area of the trunnions will lead to jamming of the whole mantlet. but who cares... if you take this "research" as basis about "115mm ineffective" you must also take that article says about mantlet - "antispall/bullet armour" instead of choosing the facts that are more convenient for you
  5. Wiedzmin
    well, not much, 490 for 12mm plates only to protect from 14.5 and 20mm(and all plates for light AFV used +- same HHS) 370-410 for main plates more or less the same for soviet BTK-1 HHS used on T-80 and other new soviet tank, T-55/62 used 42SM steel with 290-310HB IIRC, US M1 also used HHS etc btw it's funny there are some report about quality of US/UK and FRG plates for APFSDS test, XM735E2 penetrates 150/60 of UK/US plates from 3.4km, and FRG 150/60 only from 500 meters, and one of main reasons - hardness of plates(noted that the germans apparently use plates that more closely represent soviet tanks), it will be interesting to find some day real test of any APDS/APFSDS on any real tank... it's also very importatn what your tank can do after hit, for example Centurion Mk.2 mantlet after hits with 6Pdr will be jammed, after this brits reinforced trunnion pin and now mantlet gets jammed only afted 17 Pdr AP, after that they made resilient mantlet on Mk.8, and for example if 88mm APCBC(real test) hits turret of Centurion on ricochet , some vision block craks, sight etc. T-55 firing BR412B at T-54 can put out of action it without any penetrations, etc there is a very interesting part of non-penetrative tests on tank - force impact on equipment but such reports are almost never found
  6. Wiedzmin
    I posted protection levels for this turret earlier, it can withstand some 100mm ap (haven't seen test with 100mm but they tested 90mm)from 1km in +-5 degree arc
  7. Wiedzmin
    (30+35)65mm/65 degree HZB 301 370-410HB and up to 490 for 12mm plates,roof HZB20 260-300HB
  8. Wiedzmin
    1A3 turret armor btw
  9. Wiedzmin
    i guess brits made some wrong calculations(frontal stucture 7 plates for example. not 6) because german report(from which they take this drawings) gives scheme that Yuri posted. ofcourse there can be some variants, but it(drawings) look like same in german source report
  10. Wiedzmin
    and its armour. posted by Yuri Pasholok
  11. Wiedzmin
    i mostly interested in reports, because they rarely contain a personalized opinion, only facts, without reports there is no any interest in my "reasonable to assume", or your, or anybody else, with all due respect M4 Sherman much lighter than Panther, but in Swedish test IIRC was worse cross country than Panther, that's why I want to see reports, and not some logical conclusions it's not a matter of faith, for example in the offensive movement and the column, the unit moves with the speed that is set by its weakest(or lets says with speed of fuel supply and technicians) yes Chieftain unreliable, but after all, there are no complete reports on all the technical "features" of Leo1 (as i have mentioned the problems with tires at max speed, for example) but this problem decrease so called "good mobility" to same level as other western tank, no ? and moving in mixed column(with IFV, APC, and other) will decrease even worse. so you have tank with great speed, without stabilisation(until 1972?) and main method of firing will be firing from short stops/halt ? and in this situation you will have problems with swinging ? in whole tank design yes. saw this on FB page of museum IIRC, unfortunately they didn't post the report itself, is there an opportunity to contact them? i interested in full reports in all conditions, so as to be as impartial as possible it would be very strange if the country producing its own tanks would decide to kill its own production
  12. Wiedzmin
    average techical speed of Leo1, M60A1, Chieftain squad/platoon cross-country ? average techical speed of Leo1, M60A1, Chieftain squad/platoon cross-country in battle formation during offensive ? same values during winter in snow-covered field ? fuel consumption for each squad ? each squad real speed at which it can hit targets on the move at distance 2km and 1km away with a probability not lower than 60% ? i know that Chieftain engine is unrelible, read some reports, but i don't see any reports on Leo1 with real data. maybe you have 1966 report about Leo-1 test in Salisbury plain, Aldershot and Long Valley IIRC ? and ? during 1966 test IIRC brits noted the tendency of L1 to swing when moving at high speed over rough terrain, movement on roads with maximum speed was possible only within half an hour due to the risk of overheating rubber bondage of roadwheels at a speed of 50 km / h, overheating occurred an hour later, and to continue the movement it was required to drop the speed to 40 km / h
  13. Wiedzmin
    well, lets make it simple 1 squad Chieftan 1 squad Leo1 1 squad M60A1 how fast each squad can make a march cross-country at 300km ? 500km ? I'm not trying to argue with you or with somebody. all this "armour protects only from rain and wind, but mobility!111" looks also like but what we have at the moment ? british "pro-Chieftain"(i understand the fact that all nations have theirs idiotic "national pride") report(about real test) and what report from german side about Leo1 vs any western tank ?
  14. Wiedzmin
    Book gives name of exercise, you can try find report, it's not "pro-chieftain" it's usual trials , real tank mobility have nothing to "max.speed" and all of that "max" values, so in real life there is no great advantage of Leo1 mobility over any western tank in cross-country, if i remember correctly this is one of many tests show that's is nothing "special" in Leo1 mobility.
  15. Wiedzmin
  16. Wiedzmin
  17. Wiedzmin
    at least on M4A4 tested by brits it was bronze, and seems to be bronze on some restored tanks AT.100 Ballistic test of hull and turret of general Sherman tank (courtesy of Fu_Manchu) btw maybe you know exact thickness of bow MG shield ?
  18. Wiedzmin
    one more about bronze
  19. Wiedzmin
    one more
  20. Wiedzmin
    updated
  21. Wiedzmin
    ^10 meters there was a tests with polyethylene, for buletproof vests, it was able to stop AKM 7,62x39 point blank(10 meters), but when bullet velocity drops to distance of 300 meters , bullet went through 300 meters^ don't know if it was problem with certain polyethylene or it correct for any sort of polyethylene
  22. Wiedzmin
    Btw, if you take a look inside emes15 sight gap, you will see ground from the hole(small rectangular hole on turret bottom) for cooling of emes15 iirc
  23. Wiedzmin
    ah, this file... thank you
  24. Wiedzmin
  25. Wiedzmin
    thank you, is this file available ?
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