The dummy device, constructed by 2 Dstl apprentices, will support educational outreach activity at the recently-opened museum at Worthy Down near Winchester.
The Royal Logistic Corps (RLC) incorporates the Army’s Explosive Ordnance Disposal regiments whose bomb disposal experts are called upon to assist the police when suspected explosives are discovered, such as unexploded bombs dropped from enemy aircraft during world war two and devices planted by terrorists.
This task provided a great opportunity for a mechanical engineering and an electronics engineering apprentice to put some of their skills into practice.
The interactive briefcase displays a fake bomb and includes a circuit connecting up fake dynamite, a battery and a 7-segment timer. This deceptively simple circuit hides another underneath, which controls the interactive element of the exhibit. When a hinged lid is opened, the timer starts to count down to zero, and the user has 10 seconds to ‘defuse’ the bomb by pressing one of three buttons to break the circuit.
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Source: UK.GOV