What is the primary role of the Fire Direction Center (FDC) in a cannon battery?

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The Fire Direction Center acts as the firing control hub for the battery. It takes in fire requests from observers, calculates the firing solution using the target location, range, ballistic data, weather corrections, and the type of ammunition, and then issues precise firing instructions to the guns so they deliver fire on target. It coordinates the timing, direction, and sequence of rounds, and it can generate follow-up corrections if initial rounds miss. The other tasks listed—monitoring weather and logging data, supervising ammunition handling and transport, or engaging targets with personal weapons—are not the FDC’s primary duties; weather data is used to refine calculations but handled by separate personnel, ammunition handling is a logistics role, and individual weapon engagement is performed by gun crews or infantry, not the FDC.