Grom-class destroyer

Last updated
Blyskawica l d.jpg
ORP Błyskawica
Class overview
Builders J. Samuel White, Cowes
OperatorsNaval Ensign of Poland.svg  Polish Navy
Preceded by Wicher class
Succeeded by
Completed2
Lost1
Retired1
Preserved1
General characteristics
Type Destroyer
Displacement
  • 2,144 tons standard
  • 2,560 tons full load
Length114 m
Beam11.3 m
Draught3.3 m
Propulsion
  • Pearson geared turbine engines
  • 54,000 shp
Speed39 knots (72 km/h; 45 mph)
Complement192
Armament

The Grom-class destroyers were two destroyers, built for the Polish Navy by the British company of J. Samuel White, Cowes. They were laid down in 1935 and commissioned in 1937. The two Groms were some of the fastest and most heavily armed destroyers of World War II.

Contents

Design

Despite having ordered its previous pair of destroyers (ORP Burza and ORP Wicher) from France, a country with which it had strong ties, Poland decided to acquire the second pair from the United Kingdom, possibly in recognition of the excellence of British destroyer designs at the time. The selected design resulted in large and powerful ships, superior to German and Soviet destroyers of the time, and comparable to the famous British Tribal class of 1936.

The main armament was changed from the 130 mm used on the Wicher-class destroyer to the standard British destroyer calibre of 4.7 inch (120 mm). However, the guns were not British, but were instead Swedish Bofors 50cal QF M34/36, the same as those used previously on the minelayer ORP Gryf. [1]

The approximate cost for the refurbishing of the ORP Blyskawica was around 650 million zlotys.[ clarification needed ]

Original Grom class

There were two ships built:

Improved Grom class

Two more ships of this class (Huragan and Orkan) were ordered in 1939 to be built in Gdynia, but war broke out soon after the first was laid down. They would have been the first major modern warships to be built in Poland.

Operational service

Just before the war broke out, the two destroyers were evacuated to Britain to fight alongside the Royal Navy. Since they were designed for Baltic operations, they had to be modified soon after their arrival there to improve stability, to enable them to operate successfully in the rough waters of the North Sea and the Atlantic. Grom was lost in this state in 1940. In December 1941 the remaining ship, Błyskawica, had the original 4.7 inch guns replaced by eight 4-inch (102 mm) guns in twin mountings. Various other modifications of armaments and sensors were made as the war progressed.

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ORP <i>Wicher</i> (1958)

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References

  1. Whitley, p. 219

Bibliography