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Fuze safety features
Posted by Tracy Garner on September 15, 2017, 10:41:19, in reply to "1: the Austrian BB Szent István did not explode. 2: are the fuses so sensitive that a fall "
fuzes were designed not to arm until the projectile was fired and was away from the gun. This was done by using setback, angular setback, creep, or centrifugal force. Depending on the fuse, when one or more of the required forces of sufficient magnitude had occurred the fuze was armed and could only then be detonated by time, impact, or target contact.
The maximum setback force on a 16"/50 projectile being fired was 3000g so there was no reason to have a fuse so sensitive as to be armed by the g force of a projectile dropping of several feet onto a solid surface. That is what the setback safety feature was designed to prevent.
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