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Page Title:
Table A-XIV. Minimum required ballistic limits (protection criteria), firing obliquity: 30, projectile |
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|  MIL-A-12560H (MR)
w/INT. AMENDMENT 4
APPENDIX A
TABLE A-XIV. Minimum required ballistic limits (protection criteria), firing obliquity: 30,
projectile: 90 mm M82 APC.
Thickness,
Required
Thickness,
Required
Thickness,
Required
inches
BL(P), ft/sec
inches
BL(P), ft/sec
inches
BL(P), ft/sec
3.425
1924
3.620
2007
3.820
2089
3.430
1926
3.625
2009
3.825
2091
3.435
1929
3.630
2011
3.830
2093
3.440
1931
3.635
2013
3.835
2095
3.445
1933
3.640
2015
3.840
2097
3.450
1935
3.645
2018
3.845
2099
3.455
1937
3.650
2020
3.850
2101
3.460
1939
3.655
2022
3.855
2103
3.465
1942
3.660
2024
3.860
2105
3.470
1944
3.665
2026
3.865
2107
3.475
1946
3.670
2028
3.870
2109
3.480
1948
3.675
2030
3.875
2111
3.485
1950
3.680
2032
3.880
2113
3.490
1952
3.685
2034
3.885
2115
3.495
1954
3.690
2036
3.890
2117
3.500
1957
3.695
2038
3.895
2119
*3.501
1957
3.700
2040
3.900
2121
3.505
1959
3.705
2042
3.905
2123
3.510
1961
3.710
2044
3.910
2125
3.515
1963
3.715
2046
3.915
2127
3.520
1965
3.720
2048
3.920
2129
3.525
1967
3.725
2051
3.925
2131
3.530
1969
3.730
2053
3.930
2133
3.535
1971
3.735
2055
3.935
2135
3.540
1974
3.740
2057
3.940
2137
3.545
1976
3.745
2069
3.945
2139
3.550
1978
3.750
2061
3.950
2141
3.555
1980
3.755
2063
3.955
2143
3.560
1982
3.760
2065
3.960
2144
3.565
1984
3.765
2067
3.965
2146
3.570
1986
3.770
2069
3.970
2148
3.575
1988
3.775
2071
3.975
2150
3.580
1990
3.780
2073
3.980
2152
3.585
1993
3.785
2075
3.985
2154
3.590
1995
3.790
2077
3.990
2156
3.595
1997
3.795
2079
3.995
2158
3.600
1999
3.800
2081
2/ 3.999
2160
3.605
2001
3.805
2083
4.000
2160
36
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