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Alpha, alpha, alpha is the code for a medical emergency aboard Royal Caribbean and Norwegian ships. [1] Alpha Team, Alpha Team, Alpha Team is the code for a fire emergency aboard Carnival Cruise Line ships. Abandon ship signal, seven short blasts followed by one long blast of the ships horn and internal alarm bell system. [2]
The Bahamian-registered cruise ships MS Bremen and MS Caledonian Star encountered 30-meter (98 ft) freak waves in the South Atlantic in 2001. Bridge windows on both ships were smashed, and all power and instrumentation lost. Naval Research Laboratory ocean-floor pressure sensors detected a freak wave caused by Hurricane Ivan in the Gulf of ...
Foghorn made with a marine shell, with a hole on its narrowest side An early form of fog signal: the fog bell at Fort Point Light Station, Maine. Audible fog signals have been used in one form or another for hundreds of years, initially simply seashell horns, fog bells or gongs struck manually.
Both ships were followed by the ICR security vessel MV Shōnan Maru 2 at a distance of 5 nautical miles (9 km). [125] In 2019, Hurricane Dorian's extratropical remnant generated a 30 m (100 ft) rogue wave off the coast of Newfoundland. [126] In 2022, the Viking cruise ship Viking Polaris was hit by a rogue wave on its way to Ushuaia, Argentina
A horn is a sound-making device installed on motor vehicles, trains, boats, and other types of vehicles. The sound it makes usually resembles a “honk” (older vehicles) or a “beep” (modern vehicles). The driver uses the horn to warn others of the vehicle's presence or approach, or to call attention to some hazard.
Other automatic detection systems rely on a constant radio signal being transmitted between an individual unit and the base unit; passing outside the transmission range of the individual unit and/or falling into the water cause the radio signal to degrade severely, which makes the base unit sound the man overboard alarm.
A muster drill in progress on Royal Caribbean cruise ship Grandeur of the Seas A muster drill in progress on the Coral Princess. A muster drill, sometimes referred to as a lifeboat drill or a boat drill, is an exercise that is conducted by the crew of a ship prior to embarking on a voyage. A muster drill prepares passengers for safe evacuation ...
A long-range acoustic device (LRAD), acoustic hailing device (AHD) or sound cannon is a specialized loudspeaker that produces sound at high power for communicating at a distance. It has been used as a method of crowd control , which has caused permanent hearing damage , having an extremely high decibel capacity (up to 160 dB measured at one ...