Orkan-class fast attack craft

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ORP Grom (korweta) 2.JPG
Class overview
Operators:  Polish Navy
In service: 1992-present
Active: 3
General characteristics
Type: Fast Attack Craft
Displacement: 369 tonnes
Length: 48.90 m (160 ft 5 in)
Beam: 8.65 m (28 ft 5 in)
Draft: 2.15 m (7 ft 1 in)
Propulsion: 3 diesel M520 engines 3970 kW each
Speed: 36 knots (67 km/h/41 mph)
Range: 3,000 km (1,620 NM)
Complement: 33
Sensors and
processing systems:

The Orkan class or projekt 660 (Sassnitz class in NATO code) is series of three fast attack craft of the Polish Navy, in service since 1992.


The original project was prepared by the German Democratic Republic for its navy and was named Project 660, it also received the NATO reporting name "Sassnitz". After the Unification of Germany the unfinished hulls were bought by the Polish Navy from VEB Peenewerft shipyard in Wolgast and successfully completed by Northern Shipyard in Gdańsk.

List of ships[edit]

Name Commissioned
421 Orkan 18 September 1992
422 Piorun 11 March 1994
423 Grom 28 April 1995

The lead ship of the class is named Orkan (Polish: Hurricane), while other two ships are Piorun (Polish: Thunderbolt) and Grom (Polish: Thunderclap). Piorun and Grom were famous Polish destroyers of the Second World War. Orkan was to have been the first destroyer constructed in Poland, but her construction was interrupted by the start of the World War II.