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Plotting room
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A plotting room was the co-ordination centre of a fire control system for guns used against enemy ships or aircraft, whether naval guns or coastal artillery. The plotting room received data on ship or
In this U.S. Army Coast Artillery Corps plotting room, the table is a Whistler-Hearn plotting board. Other devices for fire control are visible on the
In this U.S. Army Coast Artillery Corps plotting room, the table is a Whistler-Hearn plotting board. Other devices for fire control are visible on the table.
Cut-away view of a Royal Navy World War II K-class destroyer Director Control Tower (D.C.T.) with Type 285 radar; plotting room shown on lower level
Cut-away view of a Royal Navy World War II K-class destroyer Director Control Tower (D.C.T.) with Type 285 radar; plotting room shown on lower level
This massive concrete casemate housed the underground plotting room for the 12-inch mortars of Battery Whitman at Fort Andrews in Boston Harbor.
This massive concrete casemate housed the underground plotting room for the 12-inch mortars of Battery Whitman at Fort Andrews in Boston Harbor.
1904 fire control station, east side of Fort Andrews, Massachusetts
1904 fire control station, east side of Fort Andrews, Massachusetts
Coast Artillery fire control system
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In the U.S. Army Coast Artillery Corps, the term fire control system was used to refer to the personnel, facilities, technology and procedures that were used to observe designated targets, estimate th
Plotting room
…range dial", similar to a plotting board. An electrical system moved bearing and range dials near the guns as the DPF was manipulated by an operator. Coast Artillery fire control system Seacoast defense in the United States…
A conceptual diagram of the flow of fire control data in the Coast Artillery (in 1940). The set forward point of the target was generated by using the
A conceptual diagram of the flow of fire control data in the Coast Artillery (in 1940). The set forward point of the target was generated by using the plotting board (1). This position was then corrected for factors affecting range and azimuth (2). Finally, fire was adjusted for observations of the actual fall of the shells (3), and new firing data were sent to the guns.
A series of observed positions (blue circles) establishes the likely track of the target. Using a plotting board, the set forward point is determined,
A series of observed positions (blue circles) establishes the likely track of the target. Using a plotting board, the set forward point is determined, based upon the target's observed course and speed and an assumption about when the gun is to be fired.
This example shows the relationship of steps in the fire control process playing out over time.
This example shows the relationship of steps in the fire control process playing out over time.