The purpose of a fuze is to provide safe separation of a weapon from the delivery platform and reliable detonation at the desired time delay upon weapon actuation. Safe separation is provided by the "fuze arming time". This is the preset amount of time required for a weapon to arm once it is released and is usually measured in seconds. Reliable detonation at the desired time delay is provided by the "function delay time". This is the preset amount of time at which the weapon will detonate after it has been triggered. There are usually several options for functional delays including:
Fuzes are normally classified by their position in the weapon: nose or tail for bombs, internal
for other munitions; by the arming mechanism; or method of functioning. There are thousands of different types
of fuzes found in ordnance. Fuzes are often times grouped into families.
Common fuze familes include the following:
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