An igniter device (10) operable to remediate a floating oil spill in a body of water is provided. The device (10) comprises a pyrotechnic device (28) that is actuated through an actuator assembly (20) comprising time delay circuitry (24). Upon actuation, the time delay circuitry (24) begins a countdown permitting the device (10) to be safely deployed from an aerial vehicle. The pyrotechnic device (28) ignites a fuel source (38), which in turn ignites the floating oil spill.

According to a first aspect of the invention, there is provided a programmable system for a munition, comprising: an electroacoustic transducer, arranged to receive an acoustic signal comprising data, and convert that signal into an electrical signal comprising data; a processor, arranged to receive and process the electrical signal comprising data, and to use that data in programming of the programmable system.