Fritz-X

First used by the German air force (Luftwaffe) in the Second World War, the Fritz-X was the first precision guided munition to be used by an aircraft to attack a ship. In current terminology, it was an unpowered guided bomb steered to its target by an operator physically watching the bomb and target, and steered, by radio command, to hit the target.

On its first use, it sank the Italian battleship, Roma.