If either is wrong, then even accurately aimed shells may explode harmlessly before reaching the target or after passing it. A time- or height-triggered fuze requires good prediction by the gunner and accurate timing by the fuze. The probability of a direct hit on a small moving target is low a shell that just misses the target will not explode. All of these earlier methods have disadvantages. Background īefore the invention of the proximity fuze, detonation was induced by direct contact, a timer set at launch, or an altimeter. This sophisticated trigger mechanism may increase lethality by 5 to 10 times compared to the common contact fuze or timed fuze. Proximity fuzes are designed for elusive military targets such as airplanes and missiles, as well as ships at sea and ground forces. Proximity fuze MK53 removed from shell, circa 1950sĪ proximity fuze (or fuse ) is a fuze that detonates an explosive device automatically when it approaches within a certain distance of its target. Automatic fuze that detonates an explosive device based on predetermined distance
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