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MIL-DTL-46118 Aluminum Alloy Armor, 2219, Rolled Plate And Die Forged ShapesThis specification covers aluminum alloy 2219 armor rolled plate and die forged shapes from 3/4 inch up to and including 4 inches in thickness.

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MIL-DTL-46118E(MR)

APPENDIX A

TABLE A-III.

Minimum required ballistic limits

(protection at 0o obliquity).

Caliber .50 AP, M2 projectile

Thickness

Required

Thickness

Required

Thickness

Required

(inch)

BL(P) fps

(inch)

BL(P) fps

(inch)

BL(P) fps

1.500

1924

1.745

2106

1.995

2277

1.505

1928

1.750

2110

2.000

2280

1.510

1932

1.755

2113

2.005

2284

1.515

1936

1.760

2117

2.010

2287

1.520

1940

1.765

2120

2.015

2290

1.525

1943

1.770

2124

2.020

2294

1.530

1947

1.775

2127

2.025

2297

1.535

1951

1.780

2131

2.030

2300

1.540

1955

1.785

2135

2.035

2303

1.545

1959

1.790

2138

2.040

2307

1.550

1963

1.795

2142

2.045

2310

* 1.551

1963

1.800

2145

2.050

2313

1.555

1966

1.805

2149

2.055

2316

1.560

1970

1.810

2152

2.060

2320

1.565

1974

1.815

2155

2.065

2323

1.570

1978

1.820

2159

2.070

2326

1.575

1982

1.825

2162

2.075

2329

1.580

1985

1.830

2166

2.080

2332

1.585

1989

1.835

2169

2.085

2336

1.590

1993

1.840

2173

2.090

2339

1.595

1997

1.845

2176

2.095

2342

1.600

2000

1.850

2180

2.100

2345

1.605

2004

1.855

2183

2.105

2348

1.610

2008

1.860

2187

2.110

2352

1.615

2012

1.865

2190

2.115

2355

1.620

2015

1.870

2193

2.120

2358

1.625

2019

1.875

2197

2.125

2361

1.630

2023

1.880

2200

2.130

2364

1.635

2026

1.885

2204

2.135

2368

1.640

2030

1.890

2207

2.140

2371

1.645

2034

1.895

2210

2.145

2374

1.650

2038

1.900

2214

2.150

2377

1.655

2041

1.905

2217

2.155

2380

1.660

2045

1.910

2221

2.160

2383

1.665

2049

1.915

2224

2.165

2386

1.670

2052

1.920

2227

2.170

2390

1.675

2056

1.925

2231

2.175

2393

1.680

2059

1.930

2234

2.180

2396

1.685

2063

1.935

2237

2.185

2399

1.690

2067

1.940

2241

2.190

2402

1.695

2070

1.945

2244

2.195

2405

1.700

2074

1.950

2247

2.200

2408

1.705

2078

1.955

2251

2.205

2411

1.710

2081

1.960

2254

2.210

2415

1.715

2085

1.965

2257

2.215

2418

1.720

2088

1.970

2261

2.220

2421

1.725

2092

1.975

2264

2.225

2424

1.730

2096

1.980

2267

2.230

2427

1.735

2099

1.985

2271

2.235

2430

1.740

2103

1.990

2274

2.240

2433