Holm-class multi-purpose vessel

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HDMS Hirsholm departing Rostock in 2025
Class overview
BuildersDanish Yacht A/S, Skagen
Operators Royal Danish Navy
Built2005–2008
In commission2006–present
Planned6
Completed6
Active6
General characteristics [1]
Type
Displacement128 t (126 long tons)
Length28.90 m (94 ft 10 in)
Beam6.40 m (21 ft 0 in)
Draught1.80 m (5 ft 11 in)
Propulsion2× Scania DC 16. diesel engines with 375 kW each
Speed13 knots (24 km/h; 15 mph) (maximum)
Range600 nmi (1,100 km) at 10 knots (19 km/h; 12 mph)
Boats & landing
craft carried		1 x RHIB
ComplementSpace for 10
Crew3

The Holm class is a series of six multi-purpose vessels operated by the Royal Danish Navy. The vessels are named after small Danish islands or islets (in Danish, "holm" means islet), reflecting their primary role in coastal waters. Designed and built by Danish Yacht A/S in Skagen, they are known for their flexible design, which allows them to be adapted for different missions.

Design and roles

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The Holm-class vessels are part of a larger Danish naval procurement program aimed at creating a modular fleet, which is achieved with the StanFlex modular mission payload system. They are built using a composite material known as a FRP (fibre-reinforced plastic) sandwich construction, which is also used in other Danish naval vessels like the Diana-class patrol vessels. This construction method reduces maintenance costs and gives the vessels a non-magnetic hull, a useful feature for mine countermeasures.

The vessels are divided into three groups of two, each designed for a specific primary role:

  • Training vessels (Ertholm and Alholm): These are used for naval cadet training and carry a small complement of three crew members with lodging for up to ten trainees.
  • Mine countermeasures vessels (Hirsholm and Saltholm): These vessels can operate remote-controlled mine clearance drones or serve as support vessels. Their non-magnetic hull is critical for this mission.[2]

The multi-role nature of the Holm class is a key feature, allowing the Royal Danish Navy to optimize its fleet for various tasks without needing specialized hulls for each. They have a StanFlex flexible container position at the stern, which can be fitted with equipment for environmental protection, a crane, or stores, depending on the mission.

Ships in class

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Hull number Name Builder Launched Commissioned Decommissioned Status Main role Notes
A541 Birkholm Danish Yachts, Skagen 10 December 2005 27 January 2006 Operational Hydrographic survey vessel [3]
A542 Fyrholm [dk] 5 August 2006 21 December 2006 Operational [4]
A543 Ertholm [dk] 25 March 2006 8 May 2006 Operational Training [5]
A544 Alholm [dk] 6 January 2007 7 February 2007 Operational [6]
MSD5 Hirsholm [dk] 5 May 2007 29 May 2007 Operational Minesweeper [7]
MSD6 Saltholm [dk] 3 November 2007 28 March 2008 Operational [8]

References

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  1. ^ "HOLM Class (2006-)". Navalhistory.dk. Retrieved 20 September 2025.
  2. ^ "Danish Navy to equip Holm-class mine countermeasures vessels with new Light AUVs". Armyrecognition.com. Retrieved 20 September 2025.
  3. ^ "BIRKHOLM (2006-)". Navalhistory.dk. Retrieved 20 September 2025.
  4. ^ "FYRHOLM (2006-)". Navalhistory.dk. Retrieved 20 September 2025.
  5. ^ "ERTHOLM (2006-)". Navalhistory.dk. Retrieved 20 September 2025.
  6. ^ "ALHOLM (2007-)". Navalhistory.dk. Retrieved 20 September 2025.
  7. ^ "HIRSHOLM (2007-)". Navalhistory.dk. Retrieved 20 September 2025.
  8. ^ "SALTHOLM (2008-)". Navalhistory.dk. Retrieved 20 September 2025.