Priz-class deep-submergence rescue vehicle
AS -28
The Project 1855 ( Project Name russian Приз, transcription Pris, dt "Price") is a Soviet submarine class. There are rescue submarines, the crews will salvage from sunken submarines.
Between 1986 and 1991 four prisms were built. They are 13.5 meters long and 5.7 meters high. The displacement is 55 m³, 110 m³ immersed. The boats have a maximum depth of 1,000 m. They have a titanium hull. In the Russian Navy they are considered efficient and secure. Electric drive a maximum speed of about 3.7 knots is achieved (6,9 km / h) under water. The mini- submarines can be applied to wind force 6. According to Russian sources is air storage for up to 120 hours on board. There is a similar Pris the military boot type with name Best.
With four -man crew, the boat can save up to 20 people per dive. In an emergency maneuver to dock at the emergency hatches of the crashed submarine.
This U- boat type was also involved in the failed rescue mission of the Russian nuclear submarine Kursk in 2000. It also showed the limits of this system, as the rescue submarines could not dock onto the Slanting wreck and were limited by the weather conditions.
The accident in front of the Kamchatka Peninsula
Worldwide became famous for this U- boat type in 2005 by the misfortune of the boat AS -28 type prism of the Russian Pacific fleet with seven crew members on board in the Beresowaja Bay, about 70 km southeast of Petropavlovsk -Kamchatsky removed before Kamchatka.
Depending on the source (and time zone), the boat between the 3rd and August 5th, 2005 caught in cables of an underwater monitoring system and an old fishing net at a depth of approximately 190 m.
Unlike the Kursk disaster the Russian Navy called this time to immediately international aid. Great Britain and the United States brought with transport aircraft unmanned underwater robot, Japan four military ships, including a special vessel for such operations, on the way to the scene to assist the rescue of the Russian Navy. The crew was instructed to save breath.
The boat AS -28 was built in 1989 in Gorky at the shipyard Krasnoje Sormowo. Some sources (eg Handelsblatt, ZDF ) reported a review of this shipyard to a pending overhaul, which was scheduled for November 2005 at the shipyard. Other sources speak of a survey conducted shortly before the accident overhaul ( mirror ).
In the early morning of August 7 succeeded the first arrivals as Scorpio- diving robot of the British Royal Navy Submarine Rescue Service, to cut through the steel cables with which the boat was detained on the seabed. The entire crew was able to leave the boat independently after surfacing At 5:26 clock (CET). She was weakened and but otherwise associated with hypothermia unharmed after about 76 hours on the sea floor in a military hospital.
The Japanese ships turned away again.