ARMOUR TECHNICAL COMMITTEE, POST WORLD WAR-II ASSESSMENT OF GERMAN NAVAL ARMOUR, 22-July, 1948
Comparison of Post War Testing & FACEHARD Output (NAaBO5)
Armor Type	NAB5 Armor Input Type	Plate Thickness (inches)	Projectile Dia (inches)	NAB5 Projectile Input Type	Weight (lbs)	t/d	Obliquity (deg)	BL(N) fps ATC Study	BL(N) NAB5	% Diff BL(N) of ATC & NAB5
German KC n/a	KC n/a (Bismarck & Schrn)	8.5	8	USA APC post 1935	260	1.06	30	2140	1992	7.4
German KC n/a	KC n/a (Bismarck & Schrn)	8.5	8	USA 8" Mk19-4-6 APC	260	1.06	30	2140	1976	8.3
German KC n/a	KC n/a (Bismarck & Schrn)	8.5	8	USA 8" Mk21-5 APC	260	1.06	30	2140	1976	8.3
German KC n/a	KC n/a (Bismarck & Schrn)	8.5	12	USA APC post 1935	870	0.71	35	1530	1459	4.9
German KC n/a	KC n/a (Bismarck & Schrn)	10	12	USA APC post 1935	870	0.83	35	1910	1669	14.4
								BL(N) less than
German KC n/a	KC n/a (Bismarck & Schrn)	10	14	USA APC post 1935	1500	0.71	35	1300	1420	-8.5
German KC n/a	KC n/a (Bismarck & Schrn)	10	14	14" Mk16-7-11 APC	1500	0.71	35	1300	1408	-7.7
German KC n/a	KC n/a (Bismarck & Schrn)	14	14	USA APC post 1935	1500	1.00	30	1770	1775	-0.3
German KC n/a	KC n/a (Bismarck & Schrn)	14	14	14" Mk16-7-11 APC	1500	1.00	30	1770	1760	0.6
								Non-Cemented	Cemented
German NonCemented	KC n/a (Bismarck & Schrn)	15	14	USA APC post 1935	1500	1.07	30	1910	1879	1.6
German NonCemented	KC n/a (Bismarck & Schrn)	15	14	14" Mk16-7-11 APC	1500	1.07	30	1910	1863	2.5
ATC: Armor Technical Committee Results
NAB5: FACEHARD/NAaBO5
BL(N): Naval Ballistic Limit, Majority of Projectile Completely Through Plate
Armor Type	NAB5 Armor Input Type	Thickness	Projectile Dia	NAB5 Projectile Input Type	Weight (lbs)	t/d	Obliquity (deg)	BL(N) fps ATC Study	BL(N) NAB5	% Diff ATC & NAB5
US Best Class-A	USA Avg Class-A 1944(+)	7.6	8	USA APC post 1935	260	0.95	30	2020	1896	6.5
US Best Class-A	USA Avg Class-A 1944(+)	7.6	8	USA 8" Mk19-4-6 APC	260	0.95	30	2020	1880	7.4
US Best Class-A	USA Avg Class-A 1944(+)	7.6	8	USA 8" Mk21-5 APC	260	0.95	30	2020	1880	7.4
US Avg Class-A	USA Avg Class-A 1935-43	8.5	12	USA APC post 1935	870	0.71	35	1520	1414	7.5
US Avg Class-A	USA Avg Class-A 1935-43	9	12	USA APC post 1935	870	0.75	35	1590	1482	7.3
US Best Class-A	USA Avg Class-A 1944(+)	9	12	USA APC post 1935	870	0.75	35	1690	1513	11.7
US Avg Class-A	USA Avg Class-A 1935-43	9.5	12	USA APC post 1935	870	0.79	35	1670	1550	7.7
US Best Class-A	USA Avg Class-A 1944(+)	9.5	12	USA APC post 1935	870	0.79	35	1810	1582	14.4
US Avg Class-A	USA Avg Class-A 1935-43	10	12	USA APC post 1935	870	0.83	35	1740	1617	7.6
US Avg Class-A	USA Avg Class-A 1935-43	10	14	USA APC post 1935	1500	0.71	35	1375	1346	2.2
US Best Class-A	USA Avg Class-A 1944(+)	10	14	USA APC post 1935	1500	0.71	35	1420	1373	3.4
US Avg Class-A	USA Avg Class-A 1935-43	13.5	14	USA APC post 1935	1500	0.96	30	1620	1632	-0.7
US Best Class-A	USA Avg Class-A 1944(+)	13.5	14	USA APC post 1935	1500	0.96	30	1675	1666	0.5
US Avg Class-A	USA Avg Class-A 1935-43	17	14	USA APC post 1935	1500	1.21	30	1980	1975	0.3
US Best Class-A	USA Avg Class-A 1944(+)	17	14	USA APC post 1935	1500	1.21	30	2120	2016	5.2