Engineering:Diana-class patrol vessel

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A grey warship docked alongside a wharf
HDMS Diana, lead ship of the class
Class overview
Name: Diana class
Operators:  Royal Danish Navy
Preceded by: Barsø class
Built: 2005–2008
In commission: 2007–present
Planned: 6
Completed: 6
Active: 6
General characteristics
Type: Patrol vessel
Displacement: 280 t (280 long tons)
Length: 43.0 m (141 ft 1 in)
Beam: 8.2 m (26 ft 11 in)
Draught: 2.2 m (7 ft 3 in)
Propulsion:
  • 2 × MTU 16V396 TB94 diesel engines
  • 2 shafts, controllable pitch propellers, 2,100 kW (2,816 bhp)
Speed: 18 knots (33 km/h; 21 mph)
Complement: 9
Armament: 2 × 12.7 mm (0.50 in) machine guns

The Diana class, also known as the Minor Standard Craft Mk II, are a class of six patrol boats in service with the Royal Danish Navy. Built by Faaborg Værft A/S, the ships displace 280 tonnes (280 long tons) and have a maximum speed of 18 knots (33 km/h; 21 mph) knots. The class was intended to replace the aging Barsø class of patrol boats. The lead ship of the class, HDMS Diana, entered Danish service in 2007. The Diana-class vessels were initially tasked with fisheries protection, patrol and search and rescue but are currently tasked with international and combat operations.

Design and description

The Diana class, also known as the Minor Standard Craft Mk II, are a series of patrol vessels constructed of glass reinforced plastic. They measure 43.0 metres (141 ft 1 in) long with a beam of 8.2 m (26 ft 11 in) and a draught of 2.0 m (6 ft 7 in). They are powered by two MTU 16V396 TB94 diesel engines turning two shafts with controllable pitch propellers creating 2,100 kilowatts (2,816 bhp). This gives the patrol vessels a maximum speed of 18 knots (33 km/h; 21 mph).[1][lower-alpha 1] The ships mount two 12.7-millimetre (0.50 in) machine guns and have a complement of 9, with accommodation for 15 total.[1][2] The Diana-class patrol vessels each have space for a StanFlex container, allowing for quick mission re-configuration.[1]

Ships

Construction data[1]
Ship Hull number Laid down Launched Completed In service Status
Diana P520 27 October 2005 27 March 2006 31 January 2007 December 2007 Active
Freja P521 21 October 2005 29 August 2006 6 June 2007 September 2007 Active
Havfruen P522 15 June 2006 29 November 2006 28 September 2007 May 2008 Active
Najaden P523 7 September 2006 27 March 2007 18 January 2008 December 2008 Active
Nymfen P524 6 December 2006 30 July 2007 30 April 2008 May 2009 Active
Rota P525 9 March 2007 19 October 2007 30 April 2008 December 2009 Active

Construction and service history

The class was ordered from Faaborg Værft A/S on 3 December 2004, with the hull, superstructure and machinery constructed by Kockums at their yard in Karlskrona, Sweden.[2] Upon entering service, the Diana-class patrol vessels were used for fisheries protection, patrol and search and rescue.[1] The six vessels of the Diana class are assigned to the Royal Danish Navy's 2nd Squadron, which is tasked with international and combat operations.[3]

Notes

  1. ↑ Saunders states the vessels have a draught of 2.2 m (7 ft 3 in) and a maximum speed of 18 knots (33 km/h; 21 mph) and the engines create 2,000 kW (2,700 hp).[2]

Citations

  1. ↑ 1.0 1.1 1.2 1.3 1.4 Wertheim 2013, p. 156.
  2. ↑ 2.0 2.1 2.2 Saunders 2009, p. 194.
  3. ↑ "Structure of the Navy". Royal Danish Navy. 1 September 2020. https://forsvaret.dk/en/organisation/navy/structure-of-the-navy/. 

References

  • Saunders, Stephen, ed (2009). Jane's Fighting Ships 2009–2010 (112th ed.). Alexandria, Virginia: Jane's Information Group Inc.. ISBN 978-0-7106-2888-6. 
  • Wertheim, Eric, ed (2013). The Naval Institute Guide to Combat Fleets of the World (16th ed.). Annapolis, Maryland: Naval Institute Press. ISBN 9-7-815911-4954-5. 

External links



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