The British Army had grown used to mobile imperial campaigns, while the First World War created demand for much heavier artillery. Pre-dreadnoughts could provide naval gunfire, but their draft limited how closely they could approach coastal targets. The newly available 14-inch turrets offered far more destructive weight if the Navy could place them on a shallow-draft platform. The Abercrombie design therefore began with the guns and arranged the hull, machinery, and supporting weights around them. Battlefield demand directly shaped this improvised piece of naval architecture.
Notable Point · 6:56-8:58
Army artillery needs shaped the shallow-draft monitor
The Army needed heavier fire closer to shore than deep-draft pre-dreadnoughts could provide, so the monitor hull was designed around the available 14-inch turrets.