We'd like to use analytics cookies to understand which symbols people look up, so we know what to research next. They are not used for advertising and we set none of them unless you say yes. What we store.
A bell or horn with radiating lines, marking the general emergency alarm.
Also known as: General alarm sign, Emergency alarm symbol, Muster alarm symbol
The general emergency alarm symbol marks the alarm that summons everyone aboard to their muster stations. Its associated signal is fixed and worth knowing: seven or more short blasts followed by one long blast, on the ship's whistle and the alarm bells. The sign marks the alarm point or the equipment; the sound is what actually carries the instruction, and the two are learnt together at the muster drill.
Marks the alarm that sends everyone aboard to their muster station, and is paired with a fixed audible signal: seven or more short blasts followed by one long blast.
Contexts: Public information, Navigation
Carries the instruction in its sound rather than in its shape. The sign marks where the alarm is; what a person does on hearing it is taught at the muster drill and printed on the cabin card.
Contexts: Public information, Navigation
A domed bell or a flared horn drawn in profile with short straight lines radiating outward from its mouth to indicate sound.
The alarm sends everyone to the station.