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In a demonstration for some VIP civilian visitors, Greeneville performed an emergency ballast blow surfacing maneuver. As the submarine shot to the surface, she struck Ehime Maru. Within ten minutes of the collision, Ehime Maru sank. Nine of the thirty-five people aboard were killed: four high school students, two teachers, and three crew members.
USS Columbus (SSN 762) performing an emergency ballast blow. An emergency main ballast tank blow is a procedure used aboard a submarine that forces high-pressure air into its main ballast tanks. The high-pressure air forces ballast water from the tanks, quickly lightening the ship so it can rapidly rise to the surface.
The submarine was in service in the Arctic Ocean and had to make an emergency surface through the pack ice. A third crewmember who suffered "non-life-threatening" injuries was airlifted to a military hospital at Elmendorf Air Force Base near Anchorage, Alaska. According to the Royal Navy, the accident did not affect the ship's nuclear reactor ...
TAIPEI (Reuters) -Taiwan's defence minister said on Tuesday that they have a "grasp" of the situation after pictures appeared online of a Chinese nuclear submarine surfacing in the sensitive ...
The submarine successfully completed Alpha, Bravo, and Board of Inspection and Survey (INSURV) trials, which evaluate the submarine's seaworthiness and operational capabilities. During the trials, the crew took the submarine to test depth, conducted an emergency surfacing, and tested the submarine's propulsion plant.
When a submarine performs an emergency surfacing, all depth and trim control methods are used simultaneously, [citation needed] together with propelling the boat upwards. Such surfacing is very quick, so the vessel may even partially jump out of the water, potentially damaging submarine systems.
A civilian as well as military application of the SLOT buoy is the use as emergency message transmitter. [9] If a submerged submarine faces a problem that prevents it from reaching the surface of the ocean, e.g. problems with the ballast tank, it can record a distress call on the buoy and launch it. The buoy will ascend to the surface and ...
USS San Juan (SSN-751), a Los Angeles-class submarine, is the third ship of the United States Navy to be named San Juan, though only the second named for San Juan, Puerto Rico. The contract to build her was awarded to the Electric Boat Division of General Dynamics Corporation in Groton, Connecticut on 30 November 1982 and her keel was laid down ...