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Royal Naval Propellant Factory Guided Weapons Scheme Static Firing Bay is a post-medieval and modern military structure built upon Dinantian limestone bedrock in Wales. The site occupies ground formed from Mississippian-age sedimentary rocks, which comprise limestone with subordinate bands of sandstone and argillaceous deposits. This geology provided a stable foundation for the installation, which served the Royal Navy's weapons development and testing operations.
The structure represents the technological infrastructure of twentieth-century naval warfare, specifically designed for the static firing and validation of guided weapons systems. The bay's construction reflects the engineering requirements of propellant testing and weapons certification, integral to Britain's post-war naval capability. The site's industrial character is defined by concrete and steel construction adapted to contain and monitor high-energy detonations in a controlled environment.
The monument is protected by Cadw, the historic monuments service of Wales, under reference MM341, acknowledging its significance as part of the nation's defence heritage. The surviving structures document the evolution of guided weapons technology and the substantial industrial infrastructure required to support the Royal Navy's mid-twentieth-century modernisation.
Royal Naval Propellant Factory Guided Weapons Scheme Static Firing Bay is a scheduled monument protected by Cadw under reference MM341. View the official record →
Royal Naval Propellant Factory Guided Weapons Scheme Static Firing Bay is a post-medieval and modern military structure built upon Dinantian limestone bedrock in Wales. It is designated a Scheduled Ancient Monument by Cadw under reference MM341.
Royal Naval Propellant Factory Guided Weapons Scheme Static Firing Bay dates from the post medieval/modern period, and is classified as a royal naval depot. It is one of over 32,000 scheduled monuments protected across the UK.
Royal Naval Propellant Factory Guided Weapons Scheme Static Firing Bay is a Scheduled Ancient Monument, legally protected by Cadw — the body responsible for designating and safeguarding heritage sites in Wales. The official designation reference is MM341.
Several scheduled monuments lie within 10 km, including Caldicot Castle (unoccupied parts) (3.7 km), St. Mary's Churchyard Cross, Portskewett (4.5 km), Harold's House (site of) (4.5 km).
This page is just one thread. A full Aubrey report pulls together 13 strands of Royal Naval Propellant Factory Guided Weapons Scheme Static Firing Bay's history, each drawn from the record and mapped to the exact spot:
Every location is different. Not every section appears for every place, only what the historical record actually holds turns up in a report.
Royal Naval Propellant Factory Guided Weapons Scheme Static Firing Bay stands on Dinantian Rocks (Undifferentiated), bedrock that formed in the Mississippian. The rock here is limestone with subordinate sandstone and argillaceous rocks.