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| VT FUZES FOR PROJECTILES AND SPIN-STABILIZED ROCKETS |
| Chapter 4 - VT FUZES FOR PROJECTILES |
| Mk 40 Mod 0-5, 7 (Obsolete) |
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General Data |
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Projectiles Used In 5"/25, 5"/38 A.A. Common. |
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Markings |
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Mk 40 Mod ______ |
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Model _____ Lot _____ |
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Over-All Dimensions and Weight |
| Length | 12 in. (approx.) |
| Diameter at base of ogive | 3.3 in. (approx.) |
| Threaded length | 0.5 in. (approx.) |
| Threads | 2.65 in. 10 R.H. |
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Weight |
6.81 lb. |
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Material. Steel base ring; black lucite plastic nose ogive; metal button tip; steel body cylinder; except Mod 7, which has green ethyl cellulose plastic nose ogive without but-ton tip. |
| Arming Range | 700 to 900 yd. for different Mods |
| Type of Energizer | Reserve |
| Wave-Suppression-Feature | Present |
| Self-Destructive Feature | None |
| Auxiliary Detonating Fuze | Mk 54 (replacing the Fuze Mks 17 and 46) |
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Compression-Type Waterproofing |
No |
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Description |
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This fuze has a maximum influence radius of about 70 feet. Against aircraft below 200 feet altitude, operating radius was reduced, depending on the height of the trajectory and the height of the waves, because of the wave-suppression feature. Burst height ober land or water varied between 10 and 30 feet. |
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Employment |
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This fuze was recommended for antiaircraft fire from a minimum range of 700 yards to the extreme range of the gun. The wave-suppression feature made this fuze effective against low-flying aircraft and surface targets. It could be used effectively for barrage of land targets where a burst of 10-30 feet was effective against personnel and lightly pro-tected equipment and installations. |
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Remarks |
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The fuze is no longer in production or use. It has been replaced by the VT Fuze Mk 53. |
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