Fire Direction Control Center
SP/5 Redger 'Lower than whale what?' FDC Dak To April '68. Photo by Earle Smith, 6th Battalion, 14th Artillery Regiment, RVN 1967-68. Typically, there is one FDC for a battery of six guns, in a light division. In a typical heavy division configuration, there exists two FDC elements capable of operating two four gun sections, also known as a split battery. The FDC computes firing data, fire direction, for the guns. The process consists of determining the precise target location based on the observer's location if needed, then computing range and direction to the target from the guns' location. This data can be computed manually, using special protractors and slide rules with precomputed firing data.
Images hosted by: Salt Lake Community College
Original version: Collection with various creators donated by Bernie Weisz; Archival digital version: SLCC Digital Archives. IN COPYRIGHT.
JPG Files downloaded from Facebook Profile with permission of the Profile Owner, then processed using Photoshop to generate archival TIFFs.