Stab Fuze Detonators

This type of detonator usually serves as an initiating element of a fuze. When its sensitive end is struck with a sharp firing pin, the pin penetrates thru the thin wall (usually a disc) and initiates the primary charge. 

This starts the action of other elements of explosive train which consists of a Tetryl lead , a relay detonator, and a booster charge. The stab detonator consists of a cup, which is made of A1 or A1 base alloys if LA is one of the expl ingredients, whereas Cu or Cu base alloys are used for detonators contg MF. The cup might have any one of several designs of its sensitive end closures, such as two disk-closed ends one disk-closed end one coined end one coined end one open end and one disk-closed end one open end 

The meaning of coined end is explained under Flash Fuze Detonator 

The length of US Military stab detonators varies from 0.250 to 0.750 inch and the external diam from 0.110 to 0.300 inch the wall thickness of cups from 0.005 to 0.025 inch, while the thickness of sensitive end varies from 0.001 to 0.005 inch 

Priming charges are the same as listed under Stab Fuze Primer, while Tetryl, PETN RDX are used as the base charge 

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Two types of US Navy stab fuze detonators represented in Fig 4-2, p 4-10 of Ref 23 are shown on Fig 1-25. Detonator Mk26 Mod 0 used in Fuzes Mkl35 Mkl42 is initiated by a firing pin driven by spring action. The detonator cup is of A1 and is closed at both ends with A1 disks. It functions as the initi-... 

Stab Initiation. See under Stab Detonators in Vol 8, P381-R toP385 Instantaneous Stab Fuze Detonators in Vol 4, D844-L to D846-L and Instantaneous Stab Fuze Primers in Vol 4, D850-L to D852-L... 

Fuze detonators may be subdivided into instantaneous and delay. (Delay types are described in Section 4, Part F). Both types may also be classified according to the method of initiation into flash, stab and electric... 

Fig 1-33 BUTTON-TYPE ELECTRIC DETONATOR T62 Fig 1-34 TYPICAL STAB FUZE PRIMER... 

Mehta, N., Cheng, G., Cordaro, E., Naik, N., Lateer, B., Hu, C., Stec, D., Yang, K. Performance testing of lead-free stab detonator. In Proceedings of NDIA Fuze Conference, 2006... 

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