Once per turn when this ship is given a shoot action, one of her cannons may shoot a firepot at a target within S of her. Declare which cannon will shoot the firepot before rolling the d6. If it hits, the ship's controller replaces one of her masts with a fire mast. At the beginning of every turn, roll a d6 for each fire mast. On a 6 remove the fire mast; on a 1-3 the ship's controller replaces another of her masts with a fire mast. When a ship has only fire masts, she must be scuttled on her next turn. When a ship docks at her home island or at a fort, remove all fire masts as a free action.