two, or three single strokes of the bell are sounded (one for the forward third of the ship, two for middle third, and three for the after third). Then "Fire, Fire, Fire, Class (A, B, C, or D) Fire in Compartment [Compartment Number and Nomenclature if known]. Away the [at sea fire party (generally called "Flying Squad"), IET (In-port Emergency Team), or ship's fire fighting team] provide from Repair 2 (or closest Repair Station not inside the fire boundary)" Breakaway music: Popular music played at the conclusion of an underway replenishment evolution. It is used to motivate the crew. Submarine diving: "Dive, dive." (followed by two klaxon blasts then) "Dive, dive." Security Alert: "Security Alert! Security Alert! Away the Security Alert team! Away the Back-up Alert force! All hands not involved in Security Alert stand fast! Reason for Security Alert: [state reason]" Flight Quarters: "Flight Quarters! Flight Quarters! Set condition 1-alpha for flight operations! Set condition 1-alpha for hoisting and lowering of boats, port boat davit! The smoking lamp is out aft of frame 1-2-niner; all personnel not involved in flight operations stay forward of frame 1-2-niner! All personnel remove soft hats and refrain from throwing FOD material over the side!" Testing shipwide alarm systems: "The following is a test of the ship's general, chemical, and collision alarms from the bridge --Disregard. [Test alarm sounds] Test complete, regard all further alarms!" Testing flight deck crash alarm system: "The following is a test of the flight deck crash alert, conducted from the pilothouse, helo control tower, helo control bubble - disregard. [Test alarm sounds] Test sat, test complete. Regard all further alarms!" In popular culture Crimson Tide, a 1995 submarine film, demonstrates in some detail the usage of the 1MC with regard to command instructions and ship-wide orders. Battlestar Galactica (2003): The series shows frequent use of the 1MC general address system aboard Galactica, most often to warn of an incoming attack. The most typical format for this warning resembles, "Action Stations! Action Stations! Set Condition One throughout the ship! This is not a drill!" References External links Authentic Navy Alarm Sounds from policeinterceptor.com List of standardized 1MC phrases Military communications of the United States Equipment of the United States Navy