Sullivan's Island in Charleston County, South Carolina — The American South (South Atlantic)
In The Days Before Computers
Photographed By Dave W, May 20, 2023
1. In The Days Before Computers Marker
Armed with slide rules and other instruments, Coast Artillerists of the "Range Section" were assigned to nearby plotting rooms. There they received target sightings from two remote observation posts known as base-end stations. By simple triangulation the exact position of the target could be calculated. Since the target was moving, several such sightings were repeated to determine its speed and direction. Plotters could then predict the necessary coordinates to intercept the target with artillery fire. The range settings for the gun were communicated here by telephone and entered on the firing board to the right.
Erected by National Park Service / United States Department of the Interior.
Topics. This historical marker is listed in these topic lists: Communications • Forts and Castles.
Location. 32° 45.516′ N, 79° 51.337′ W. Marker is on Sullivan's Island, South Carolina, in Charleston County. Marker is on Station 14 Street. Touch for map. Marker is at or near this postal address: 1412 Station 14 St, Sullivans Island SC 29482, United States of America. Touch for directions.
Other nearby markers. At least 8 other markers are within walking distance of this marker. Communications (here, next to this marker); Projectile Delivery Table (here, next to this marker); Disappearing Rifle: The Endicott System
this page online
Photographed By Dave W, May 20, 2023
2. In The Days Before Computers Marker
Marker seen here on the right
Credits. This page was last revised on June 1, 2023. It was originally submitted on May 21, 2023, by Dave W of Co, Colorado. This page has been viewed 63 times since then and 17 times this year. Photos: 1, 2. submitted on May 21, 2023, by Dave W of Co, Colorado. • Bill Pfingsten was the editor who published this page.
