HMAS Diamantina (M 86)
HMAS Diamantina in 2009
|Builder:||Australian Defence Industries|
|Laid down:||4 August 1998|
|Launched:||2 December 2000|
|Commissioned:||4 May 2002|
|Motto:||"Whoever Leads Protects"|
|One inherited battle honour|
|Status:||Active as of 2016|
|Class and type:||Huon-class minehunter|
|Displacement:||732 tons at full load|
|Length:||52.5 m (172 ft)|
|Beam:||9.9 m (32 ft)|
|Draught:||3 m (9.8 ft)|
|Range:||1,600 nautical miles (3,000 km; 1,800 mi) at 12 knots (22 km/h; 14 mph)|
|Complement:||6 officers and 34 sailors, plus up to 9 additional|
HMAS Diamantina (M 86), named after the Diamantina River, is a Huon-class minehunter currently serving in the Royal Australian Navy (RAN). Built by a joint partnership between Australian Defence Industries (ADI) and Intermarine SpA, Diamantina was constructed at ADI's Newcastle shipyard, and entered service in 2000.
Design and construction
In 1993, the Department of Defence issued a request for tender for six coastal minehunters to replace the problematic Bay-class minehunters. The tender was awarded in August 1994 to Australian Defence Industries (ADI) and Intermarine SpA, which proposed a modified Gaeta-class minehunter.
Diamantina has a full load displacement of 732 tons, is 52.5 metres (172 ft) long, has a beam of 9.9 metres (32 ft), and a draught of 3 metres (9.8 ft). Main propulsion is a single Fincantieri GMT BL230-BN diesel motor, which provides 1,985 brake horsepower (1,480 kW) to a single controllable-pitch propeller, allowing the ship to reach 14 knots (26 km/h; 16 mph). Maximum range is 1,600 nautical miles (3,000 km; 1,800 mi) at 12 knots (22 km/h; 14 mph), and endurance is 19 days. The standard ship's company consists of 6 officers and 34 sailors, with accommodation for 9 additional (typically trainees or clearance divers). The main armament is a MSI DS30B 30 mm cannon, supplemented by two 0.50 calibre machine guns. The sensor suite includes a Kelvin-Hughes Type 1007 navigational radar, a GEC-Marconi Type 2093M variable-depth minehunting sonar, an AWADI PRISM radar warning and direction-finding system, and a Radamec 1400N surveillance system. Two Wallop Super Barricade decoy launchers are also fitted.
For minehunting operations, Diamantina uses three 120 horsepower (89 kW) Riva Calzoni azimuth thrusters to provide a maximum speed of 6 knots (11 km/h; 6.9 mph): two are located at the stern, while the third is sited behind the variable-depth sonar. Mines are located with the minehunting sonar, and can be disposed of by the vessel's two Double Eagle mine disposal vehicles, the Oropesa mechanical sweep, the Mini-Dyad magnetic influence sweep, or the towed AMASS influence sweep (which is not always carried). To prevent damage if a mine is detonated nearby, the ships were built with a glass-reinforced plastic, moulded in a single monocoque skin with no ribs or framework. As the ships often work with clearance divers, they are fitted with a small recompression chamber.
On the morning of 13 March 2009, Diamantina was one of seventeen warships involved in a ceremonial fleet entry and fleet review in Sydney Harbour, the largest collection of RAN ships since the Australian Bicentenary in 1988. The minehunter was one of the thirteen ships involved in the ceremonial entry through Sydney Heads, and anchored in the harbour for the review.
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- "Defence Materiel Organisation – Sea 1555 Project". Department of Defence – Australian Government. 13 June 2006. Archived from the original on 3 October 2006. Retrieved 16 January 2007.
- Saunders (ed.), IHS Jane's Fighting Ships 2012–2013, p. 33
- Wertheim (ed.), The Naval Institute Guide to Combat Fleets of the World, p. 23
- Brooke, Michael (2 April 2009). "Marching into History". Navy News. Department of Defence.
- "Participating Warships". International Fleet Review 2013 website. Royal Australian Navy. 2013. Archived from the original on 10 December 2013. Retrieved 14 December 2015.
- Saunders, Stephen, ed. (2012). IHS Jane's Fighting Ships 2012–2013. Jane's Fighting Ships. Coulsdon: IHS Jane's. ISBN 9780710630087. OCLC 793688752.
- Wertheim, Eric, ed. (2007). The Naval Institute Guide to Combat Fleets of the World: Their Ships, Aircraft, and Systems (15th ed.). Annapolis, MD: Naval Institute Press. ISBN 978-1-59114-955-2. OCLC 140283156.
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