Mark 63 Gun Fire Control System
Mark 63 Gun Fire Control System is a gun fire-control system made up of AN/SPG-34 radar tracker and the Mark 29 gun sight. They were usually equipped for the control of twin QF 4-inch naval gun Mk XVI and Mk.33 twin 3"/50 cal guns.
AN/SPG-34 aboard HMCS Haida
Mk.63 aboard JDS Umitaka
Mark 63 aboard USS Asheville
AN/SPG-34 aboard Minas Gerais
Ship gun fire-control system
Ship gun fire-control systems (GFCS) are analogue fire-control systems that were used aboard naval warships prior to modern electronic computerized systems, to control targeting of guns against surface ships, aircraft, and shore targets, with either optical or radar sighting. Most US ships that are destroyers or larger employed gun fire-control systems for 5-inch (127 mm) and larger guns, up to battleships, such as Iowa class.
Mark 68 GFCS director with AN/SPG-53 radar antenna on top.
Mark 37 Director c1944 with Mark 12 (rectangular antenna) and Mark 22 "orange peel"
Barr & Stroud 1.5–metre rangefinder, on display on Mikasa, Yokosuka, Japan
Cut-away view of a RN K-class destroyer Director Control Tower with Type 285 radar. The below decks Fuze Keeping Clock is shown in the centre of the drawing and is labelled "Gunnery Calculating Position", with the deflection operator seated.
