MIL-DTL-46083D(MR)
APPENDIX A
TABLE A-V. Minimum required ballistic limits for class II armor extrusions
(protection at 0° obliquity) - 20 mm FSP projectile.
________________________________________________________________________________________
Thickness
Required
Thickness
Required
Thickness
Required
Inches
BL(P), fps
Inches
BL(P), fps
Inches
BL(P), fps
0.920
1137
1.125
1525
1.330
2028
0.925
1146
1.130
1535
1.335
2042
0.930
1154
1.135
1546
1.340
2056
0.935
1162
1.140
1557
1.345
2070
0.940
1171
1.145
1568
1.350
2084
0.945
1179
1.150
1579
1.355
2099
1/0.950
1188
1.155
1590
1.360
2113
0.955
1197
1.160
1602
1.365
2128
0.960
1205
1.165
1613
1.370
2142
0.965
1214
1.170
1624
1.375
2157
0.970
1223
1.175
1636
1.380
2172
0.975
1232
1.180
1647
1.385
2187
0.980
1240
1.185
1659
1.390
2202
0.985
1249
1.190
1670
1.395
2217
0.990
1258
1.195
1682
1.400
2232
0.995
1267
1.200
1694
1.405
2247
1.000
1277
1.205
1706
1.410
2263
1.005
1286
1.210
1717
1.415
2278
1.010
1295
1.215
1729
1.420
2294
1.015
1304
1.220
1742
1.425
2310
1.020
1314
1.225
1754
1.430
2325
1.025
1323
1.230
1766
1.435
2341
1.030
1333
1.235
1778
1.440
2357
1.035
1342
1.240
1791
1.445
2373
1.040
1352
1.245
1803
1.450
2390
1.045
1361
1.250
1816
1.455
2406
1.050
1371
1.255
1828
1.460
2422
1.055
1381
1.260
1841
1.465
2439
1.060
1391
1.265
1854
1.470
2455
1.065
1401
1.270
1867
1.475
2472
1.070
1411
1.275
1880
1.480
2489
1.075
1421
1.280
1893
1.485
2506
1.080
1431
1.285
1906
1.490
2523
1.085
1441
1.290
1919
1.495
2540
2/1.500
1.090
1451
1.295
1932
2557
1.095
1461
1.300
1946
1.505
2575
1.100
1472
1.305
1959
1.510
2592
1.105
1482
1.310
1973
1.515
2610
1.110
1493
1.315
1986
1.520
2628
1.115
1503
1.320
2000
1.525
2645
1.120
1514
1.325
2014
1.530
2663
__________________________________________________________________________________
1/
Specification requirements begin with 0.951 inch ordered thickness.
Required BL(P) = 1190 fps.
2/
Specification requirements end with this ordered thickness.
Note: Tabulated values on either side of the specification requirements are
for interpolation of BL(P) requirements on undersize or oversize plates.
19
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