HMAS Attack (P 90)

HMAS Attack (second from right) with three other Attack-class patrol boats
History
Australia
Builder:	Evans Deakin and Company
Launched:	8 April 1967
Commissioned:	17 November 1967
Decommissioned:	21 February 1985
Motto:	"Never Waver"
Fate:	Sold to Indonesia
Badge:
History
Indonesia
Name:	Sikuda
Acquired:	24 May 1985
Status:	Active as of 2011
General characteristics
Class and type:	Attack class patrol boat
Displacement:	100 tons standard 146 tons full load
Length:	107.6 ft (32.8 m) length overall
Beam:	20 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
Speed:	24 knots (44 km/h; 28 mph)
Range:	1,200 nautical miles (2,200 km; 1,400 mi) at 13 knots (24 km/h; 15 mph)
Complement:	3 officers, 16 sailors
Armament:	1 × Bofors 40 mm gun 2 × .50 calibre M2 Browning machine guns Small arms

HMAS Attack (P 90) was the lead ship of the Attack-class patrol boats used by the Royal Australian Navy (RAN).

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. 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 later ordered to bring the class to twenty vessels.

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. The vessels' propulsion machinery consisted of two 16-cylinder Paxman YJCM diesel engines, which supplied 3,460 shaft horsepower (2,580 kW) to the two propellers, producing a top speed of 24 knots (44 km/h; 28 mph) and a range of 1,200 nautical miles (2,200 km; 1,400 mi) at 13 knots (24 km/h; 15 mph). The ship's company consisted of three officers and sixteen sailors. Its main armament was a bow-mounted Bofors 40 mm gun, supplemented by two .50 calibre M2 Browning machine guns and various small arms. 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.

Attack was built by Evans Deakin and Company at Brisbane, Queensland, launched on 8 April 1967 and commissioned on 17 November 1967. Although it was the lead ship of the class, Attack was the second ship commissioned into the RAN, four days behind HMAS Aitape.