|
|
| U.S. EXPLOSIVE ORDNANCE |
| PART 1 - PROJECTILES, PROPELLANT, AND PROECTILE FUZES |
| Chapter 1 - Projectiles |
| Section 8 - 12-INCH PROJECTILES |
| 12-inch H.C. Mk 17 Mods 1 and 2, and Mk 22 |
|
Guns used in |
12"/50 |
|
Over-all length, inches |
|
|
With nose fuze |
54.0 |
|
Without nose fuze |
50.18 |
|
Diameter of base, inches |
11.977 |
|
Distance base to band, inches |
3.1 |
|
Width of band, inches |
4.0 |
|
Diameter at bourrelet, inches |
11.977 |
|
Filling |
Explosive D |
|
Weight of filling, pounds |
79.44 |
|
Weight of loaded projectile, pounds |
940 |
|
Charge/weight ratio |
8.45% |
|
Primer |
Mk 15 Mod 1 |
|
Tracer |
Mk 5 Mod 1 |
|
Fuzes |
|
|
Base |
Mk 28 "green stripe" |
|
|
Mk 38 Mods 0 and 1 |
|
|
Mk 48 Mods 0 and 1 |
|
Nose |
Mk 29 Mods 1, 2, and 3 (P.D.F.) |
|
|
Mk 42 Mod 0 (M.T.F.) |
|
|
Mk 62 Mod 0 (M.T.F.) |
|
|
Steel Nose Plug |
|
Auxiliary Detonating Fuze |
Mk 17 Mod 8 "green stripe" |
|
|
Mk 35 Mod 0 |
|
|
Mk 55 Mod 0 |
|
|
Booster Mk 5, or a special 0.53 pound pres-sed TNT booster, is also used under the au-xiliary detonating fuze. |
|
The 12-inch H.C. Projectile Mk 22 is merely a redesignation of the Mk 17. |
|
The Base Fuze Mk 39 repleaces the original "green stripe" Base Fuze Mk 28; the Auxili-ary Detonating Fuze Mk 35 replaces the original special "green stripe" Mk 17 Mod 8. These Fuzes are now being replaced by the Base Fuze Mk 48 and the Auxiliary Detonat-ing Fuze Mk 55. |
|
The Nose Fuze Mk 62 is the preferred nose time fuze. |
|
The 12-inch H.C. Projectile Mk 17 Mod 2 differs from the Mk 17 Mod 1 in that its base plug threads are 7.85" instead of 7.75" |
 |