HMAS Assail (P 89)

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Attack-class.jpg
HMAS Assail (Second from left) with three other Attack-class patrol boats
History
Naval Ensign of Australia.svgAustralia
BuilderEvans Deakin and Company
Launched18 November 1967
Commissioned21 July 1968
Decommissioned18 October 1985
Motto"Cut Deep"
FateSold to Indonesian Navy
Badge HMAS Assail.png
Flag of Indonesia.svgIndonesia
NameSigurot
StatusActive as of 2011
General characteristics
Class and type Attack-class patrol boat
Displacement
  • 100 tons standard
  • 146 tons full load
Length107.6 ft (32.8 m) length overall
Beam20 ft (6.1 m)
Draught
  • 6.4 ft (2.0 m) at standard load
  • 7.3 ft (2.2 m) at full load
Propulsion
  • 2 × 16-cylinder Paxman YJCM diesel engines
  • 3,460 shp (2,580 kW)
  • 2 shafts
Speed24 knots (44 km/h; 28 mph)
Range1,200 nmi (2,200 km; 1,400 mi) at 13 knots (24 km/h; 15 mph)
Complement3 officers, 16 sailors
Armament

HMAS Assail (P 89) was an Attack-class patrol boat of the Royal Australian Navy (RAN).

Contents

Design and construction

The Attack class was ordered in 1964 to operate in Australian waters as patrol boats (based on lessons learned through using the Ton-class minesweepers on patrols of Borneo during the Indonesia-Malaysia Confrontation, and to replace a variety of old patrol, search-and-rescue, and general-purpose craft. [1] Initially, nine were ordered for the RAN, with another five for Papua New Guinea's Australian-run coastal security force, although another six ships were ordered to bring the class to twenty vessels. [1] The patrol boats had a displacement of 100 tons at standard load and 146 tons at full load, were 107.6 feet (32.8 m) in length overall, had a beam of 20 feet (6.1 m), and draughts of 6.4 feet (2.0 m) at standard load, and 7.3 feet (2.2 m) at full load. [1] [2] Propulsion machinery consisted of two 16-cylinder Paxman YJCM diesel engines, which supplied 3,460 shaft horsepower (2,580 kW) to the two propellers. [1] [2] The vessels could achieve a top speed of 24 knots (44 km/h; 28 mph), and had a range of 1,200 nautical miles (2,200 km; 1,400 mi) at 13 knots (24 km/h; 15 mph). [1] [2] The ship's company consisted of three officers and sixteen sailors. [2] Main armament was a bow-mounted Bofors 40 mm gun, supplemented by two .50-calibre M2 Browning machine guns and various small arms. [1] [2] The ships were designed with as many commercial components as possible: the Attacks were to operate in remote regions of Australia and New Guinea, and a town's hardware store would be more accessible than home base in a mechanical emergency. [3]

Assail was built by Evans Deakin and Company at Brisbane, Queensland, [4] launched on 18 November 1967,[ citation needed ] and commissioned on 12 July 1968. [4]

Operational history

Assail paid off on 18 October 1985, and was transferred to the Indonesian Navy and renamed KRI Sigurot (864). [5] [6] The patrol boat was listed in Jane's Fighting Ships as still operational in 2011. [6]

Citations

  1. 1 2 3 4 5 6 Gillett, Australian and New Zealand Ships since 1946, p. 86
  2. 1 2 3 4 5 Blackman (ed.), Jane's Fighting Ships, 1968–69, p. 18
  3. ↑ The patrol boat, Australian National Maritime Museum
  4. 1 2 Gillett, Australian and New Zealand Ships since 1946, p. 87
  5. ↑ "HMAS Assail (I)". Royal Australian Navy. Archived from the original on 4 November 2012. Retrieved 5 October 2012.
  6. 1 2 Saunders, Stephen, ed. (2011). Jane's Fighting Ships 2011–2012. Coulsdon: IHS Jane's. p. [ page needed ]. ISBN   9780710629593. OCLC   751789024.

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References


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