View source for Engineering:Diana-class patrol vessel

{|{{Infobox ship begin <!-- warship classes -->
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{{Infobox ship image
|Ship image=DIANA P520 01.jpg
|Ship caption=HDMS ''Diana'', [[Engineering:Lead ship|lead ship]] of the class
|image alt= A grey warship docked alongside a wharf
}}
{{Infobox ship class overview
|Name=''Diana'' class
|Builders=
|Operators={{navy|Denmark}}
|Class before={{sclass|Barsø|patrol boat|4}}
|Class after=
|Subclasses=
|Built range=2005–2008
|In commission range=2007–present
|Total ships planned=6
|Total ships on order=
|Total ships building=
|Total ships completed=6
|Total ships cancelled=
|Total ships active=6
|Total ships laid up=
|Total ships lost=
|Total ships retired=
|Total ships scrapped=
|Total ships preserved=
}}
{{Infobox ship characteristics
|Hide header=
|Header caption=
|Ship type=Patrol vessel
|Ship displacement={{cvt|280|t|LT|lk=on}}
|Ship length={{cvt|43.0|m|ftin}}
|Ship beam={{cvt|8.2|m|ftin}}
|Ship draught={{cvt|2.2|m|ftin}}
|Ship propulsion=* 2 × [[Company:MTU Friedrichshafen|MTU]]  16V396 TB94 diesel engines
* 2 shafts, controllable pitch propellers, {{cvt|2816|bhp|lk=out|order=flip}}
|Ship speed={{convert|18|kn|lk=in}}
|Ship range=
|Ship complement=9
|Ship sensors=
|Ship EW=
|Ship armament=2 × {{cvt|12.7|mm|in}} machine guns
|Ship armour=
|Ship armor=
|Ship aircraft=
|Ship aircraft facilities=
|Ship notes=
}}
|}
The '''''Diana'' class''', also known as the '''Minor Standard Craft Mk II''', are a class of six [[Engineering:Patrol boat|patrol boat]]s in service with the Royal Danish Navy. Built by Faaborg Værft A/S, the ships [[Engineering:Displacement (ship)|displace]] {{convert|280|t|LT|lk=on}} and have a maximum speed of {{convert|18|kn|lk=in}} knots. The class was intended to replace the aging ''Barsø'' class of patrol boats. The [[Engineering:Lead ship|lead ship]] of the class, {{HDMS|Diana|P520|6}}, 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 {{convert|43.0|m|ftin}} long with a [[Engineering:Beam (nautical)|beam]] of {{cvt|8.2|m|ftin}} and a [[Engineering:Draft (hull)|draught]] of {{cvt|2.0|m|ftin}}. They are powered by two [[Company:MTU Friedrichshafen|MTU]] 16V396 TB94 diesel engines turning two shafts with controllable pitch propellers creating {{convert|2816|bhp|lk=out|order=flip}}. This gives the patrol vessels a maximum speed of {{convert|18|kn|lk=in}}.{{sfn|Wertheim|2013|p=156}}{{efn|Saunders states the vessels have a draught of {{cvt|2.2|m|ftin}} and a maximum speed of {{convert|18|kn}} and the engines create {{cvt|2700|hp|order=flip}}.{{sfn|Saunders|2009|p=194}}}} The ships mount two {{convert|12.7|mm|in|adj=on}} machine guns and have a complement of 9, with accommodation for 15 total.{{sfn|Wertheim|2013|p=156}}{{sfn|Saunders|2009|p=194}} The ''Diana''-class patrol vessels each have space for a StanFlex container, allowing for quick mission re-configuration.{{sfn|Wertheim|2013|p=156}}

== Ships ==
{| class="wikitable plainrowheaders"
|-
|+ Construction data{{sfn|Wertheim|2013|p=156}}
|-
! scope="col"| Ship
! scope="col"| Hull number
! scope="col"| Laid down
! scope="col"| Launched
! scope="col"| Completed
! scope="col"| In service
! scope="col"| Status
|-
|scope="row"| {{HDMS|Diana|P520|2}}
| P520
| 27 October 2005
| 27 March 2006
| 31 January 2007
| December 2007
| Active
|-
|scope="row"| {{HDMS|Freja|P521|2}}
| P521
| 21 October 2005
| 29 August 2006
| 6 June 2007
| September 2007
| Active
|-
|scope="row"| {{HDMS|Havfruen|P522|2}}
| P522
| 15 June 2006
| 29 November 2006
| 28 September 2007
| May 2008
| Active
|-
|scope="row"| {{HDMS|Najaden|P523|2}}
| P523
| 7 September 2006
| 27 March 2007
| 18 January 2008
| December 2008
| Active
|-
|scope="row"| {{HDMS|Nymfen|P524|2}}
| P524 
| 6 December 2006
| 30 July 2007
| 30 April 2008
| May 2009
| Active
|-
|scope="row"| {{HDMS|Rota|P525|2}}
| 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 [[Engineering:Hull (watercraft)|hull]], [[Earth:Superstructure|superstructure]] and machinery constructed by Kockums at their yard in Karlskrona, Sweden.{{sfn|Saunders|2009|p=194}} Upon entering service, the ''Diana''-class patrol vessels were used for fisheries protection, patrol and search and rescue.{{sfn|Wertheim|2013|p=156}} 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.<ref>{{cite web |url=https://forsvaret.dk/en/organisation/navy/structure-of-the-navy/ |title=Structure of the Navy |publisher=Royal Danish Navy |date=1 September 2020 |access-date=20 October 2021 |url-status=live|archive-url=https://web.archive.org/web/20210415014947/https://forsvaret.dk/en/organisation/navy/structure-of-the-navy/ |archive-date=15 April 2021 }}</ref>

==Notes==
{{notelist}}

==Citations==
{{Reflist}}

== References ==
* {{cite book |editor-last=Saunders |editor-first=Stephen |year=2009 |title=Jane's Fighting Ships 2009–2010 |publisher=Jane's Information Group Inc. |edition=112th |location=Alexandria, Virginia |isbn=978-0-7106-2888-6}}
* {{cite book |editor-last=Wertheim |editor-first=Eric |year=2013 |title=The Naval Institute Guide to Combat Fleets of the World |edition=16th |publisher=Naval Institute Press |location=Annapolis, Maryland |isbn=9-7-815911-4954-5}}

==External links==
* {{Cite web |url=http://www.navalhistory.dk/Danish/Skibene/Skibsklasser/Diana_klassen(2007).htm |title=DIANA-klassen (2007- ) |access-date=20 October 2021 |website=navalhistory.dk |language=Danish}}
* {{Cite web|date=27 May 2012|title=Navnet er Diana|url=http://forsvaret.dk/SOK/Nyt%20og%20Presse/nybygninger/Pages/12-12-2007%20navnet%20er%20Diana.aspx|access-date=2 July 2020|website=archive.is|archive-date=27 May 2012|archive-url=https://archive.today/20120527014932/http://forsvaret.dk/SOK/Nyt%20og%20Presse/nybygninger/Pages/12-12-2007%20navnet%20er%20Diana.aspx|url-status=bot: unknown}}


[[Category:Patrol boat classes]]

{{Sourceattribution|Diana-class patrol vessel}}