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 3,970 kW (5,320 hp) each
Speed: 36 knots (67 km/h; 41 mph)
Range: 3,000 km (1,600 nmi)
Complement: 33
Sensors and
processing systems:

The Orkan class or projekt 660 (NATO code: Sassnitz class) 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.

In 2006 Ministry of Defence ordered 36 RBS-15 Mk 3 anti-ship missiles to equip the ships. Since 2007 they carried RBS-15 Mk 2 missiles as interim armament.[1] RBS-15 Mk 3 missiles were first deployed in 2014.[2] Since 2015 Orkan[3] and Piorun underwent a 19-month, mid-life refit.[4]

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.



  • "okręty rakietowe projektu 660, typu Orkan (NATO: Sassnitz)." (in Polish). Polish Navy. Retrieved 3 August 2011.