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| U.S. EXPLOSIVE ORDNANCE |
| PART 1 - PROJECTILES, PROPELLANT, AND PROECTILE FUZES |
| Chapter 3 - PROJECTILE FUZES |
| Section 6 - BASE FUZES FOR PROJECTILES |
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Base Detonating Fuze Mk 28 Mods 0-17 |
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Projectiles used in |
4"/50 H.C. 5"/25/38/51 A.A. Common 5"/51/54 H.C. 6"/50 Common 6"/47/53 H.C. 7"/45 Bombardment 8"/55 H.C. and Sp. Common 14"/45/50 Bombardment "Green Stripe" 12"/50 H.C. 14"/45/50 H.C. 16"/45/50 H.C. |
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Threaded length, inches |
0.96 |
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Threads |
11 L.H. |
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Weight |
2 lb. 6 oz. |
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Material |
Body - manganese steel Nose cap - duralumin (unpainted) |
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Arming speed r.p.m. |
3,000 - 4,000 |
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Delay |
None |
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Except for the dimensions and delay noted above, the Base Detonating Fuze Mk 28 is like the Mk 19. |
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Remarks: The fuze will function on ¼- to ½-inch plate and on water. |
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The special "green stripe" Base Detonating Fuze Mk 28 was issued for major-caliber H.C. projectiles, but is being replaced by the Mk 39. |
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Mods 0 to 14 represent different manufacturers. |
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Mods 15 and 16 are identical to earlier Mods, but are fully moisture-resistant, with a silicia gel capsule in the auxiliary detonator plunger and all external joints coated with bakelite varnish over a lacquer base. Mod 17 has an additional booster charge. |
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