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| U.S. EXPLOSIVE ORDNANCE |
| PART 1 - PROJECTILES, PROPELLANT, AND PROECTILE FUZES |
| Chapter 3 - PROJECTILE FUZES |
| Section 4 - V.T. FUZES |
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Mk 58 Mods 0-5 |
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Projectiles used in |
3"/50 A.A. |
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Over-all length, inches |
8.5 (approx.) |
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Diameter at base ogive, inch |
2.4 (approx.) |
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Threaded length, inch |
1.0 (approx.) |
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Threads |
12 R.H. |
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Material |
Plastic ogive molded integral to steel base; steel cap molded in forward end of plastic ogive |
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Weight, pounds |
1.98 |
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Minimum range, yards |
500 |
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Energizer |
Wet |
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Wave-suppression feature |
Present |
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Self-destrcutive feature |
Mod 5 only |
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Centrifugal handling safety switch |
Present |
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Description: The maximum influence radius varies between 40 and 100 feet for diffe-rent lots and Mods. Sensitivity to aircraft flying below 200-ft altitude will be reduced by the wave-suppression feature. Burst heights over water will average between 5 and 15 feet. |
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Random bursts of rounds will occur along the trajectory after arming, so that approxi-mately 20 per cent of the rounds will have functioned before reaching a target at long range. When fired at a target at long range, after 20 per cent of the rounds have burst prematurely, 65 per cent will function. |
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Employment: This fuze is used for antiaircraft work for ranges of 500 yards to the extreme range. It is useful against low-flying aircraft and surface craft, and in land bar-rage against personnel and light equipment. |
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Remarks: The Auxiliary Detonating Fuze Mk 44 is used with this V.T. Fuze. |
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The V.T. Fuze Mk 58 is currently replacing the Mk 45 Mod 12 in the 3"/50 assembly. |
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Mods 3, 4, and 5 have additional water-resistance and are not interchangeable with previous Mods. |
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Mod 5 will have a self-destrcutive switch to function at a range of 6,000 to 9,000 yards. The switch is not adjustable. |
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Mod 0 is now obsolete. |
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