Former RAF Faldingworth atomic bomb store: BD Fissile Core Storage Building

The former RAF Faldingworth atomic bomb store includes a Type B nuclear fissile core storage building from the early 1950s, designed by the Air Ministry.

This small, single-storey structure has reinforced concrete walls resting on a brick plinth and features an asphalt-covered flat roof. The building is nearly square, measuring 3 metres by 2.5 metres. A single metal-plated timber door is located on the north side and is accessed via a low concrete ramp that connects to a former concrete pathway linking the hutches.

Internally, the walls are finished with gritless plaster, and there are four small ventilators positioned on the sides and rear. The wooden doors are shielded externally by a steel sheet and are secured with a combination lock and an internal vertical locking bar, which can be operated by an external handle. The storage area originally contained two key-hole shaped holes in the ground for the cores, which have been filled with concrete but remain visible. Additionally, there is a radiator against the rear wall, and while electrical fittings, including an automatic door lock that allowed remote operation, are still present, they are no longer functional.