Development of a Flueric Explosive Initiator for FAE Weapons
Final rept. 14, Apr 1971-14 May 1972
PICATINNY ARSENAL DOVER NJ
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A flueric second event initiator for Fuel Air Explosives has been designed and tested. It consists of an ignitor incorporating a gas supply bottle and a modified Flueric Explosive Initiator which ignites an explosive through resonance heating. The main feature of the initiator is that it is capable of achieving repeatable time delays of 10 to 1000ms with no moving parts. Time delay mechanization is accomplished by preventing resonance heating at high gas supply pressures and allowing the gas supply pressure to bleed down to the operating point of the ignitor. The characteristic time delay of the discharging supply bottle is therefore the time delay of the ignitor. It was shown how the characteristic time delay of the supply bottle could be made insensitive to the ambient temperature of the gas. Time delay ignitions of KDNBF explosive of 1000ms were obtained with a 170cc gas supply bottle initially charged to 1000 psig.
- Ammunition and Explosives