Often confused with being fireman on board a ship, FCs actually operate advanced weapons systems, whereas Damage Controlman (DC) are actually the shipboard firefighters.

These skills were employed initially for naval gunfire support and surface combat, but during World War II, their responsibilities expanded into anti-aircraft warfare as well.

In 1957, as various electronics such as tracking radars and computers became more widespread, the fire controlman rating was merged into the fire control technician (FT) rating which had been created in 1948,[1] with specific sub-specialties for gunnery (FTG), missiles (FTM), and submarines (FTU).

Later, the FTU designation was split into two specific sub-specialties for torpedoes (FTG) and ballistic missiles (FTB).

[2] The fire controlman rating insignia is a coincidence or stereoscopic rangefinder, with two lightning bolts (called "sparks") signifying the technical skills required.

Complex computers, electronics, and electrical and hydraulic equipment are required to ensure the accuracy of guided missile, surface, and anti-aircraft fire control systems.

I must be capable of and competent to fill my station, or perform any operation in the weapons department of my ship; to assume command of, spot, or control the fire of any battery.