The Fuze Keeping Clock (FKC) was a simplified version of the Royal Navy's High Angle Control System analogue fire control computer.[1] It first appeared as the FKC MkII in destroyers of the 1938 Tribal class,[2] while later variants were used on sloops, frigates, destroyers, aircraft carriers and several cruisers.[3] The FKC MkII was a non-tachymetric anti-aircraft fire control computer. It could accurately engage targets with a maximum speed of 250 knots (460 km/h; 290 mph).[2]
- ^ The Gunnery Pocket Book, pp. 153–54, paragraphs 432–35
- ^ a b Tribal Class Destroyers, Hodges, p. 27
- ^ Naval Weapons of WW2, Campbell, p. 19