[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 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] Bombard was built by Walkers Limited at Maryborough, Queensland,[4] launched on 6 July 1968,[citation needed] and commissioned on 5 November 1968.

[4] During 1978 and 1979, Bombard was one of two Attack-class vessels used to portray the fictional HMAS Ambush for ABC drama series Patrol Boat.

[1] Bombard paid off on 12[citation needed] September 1983, was transferred to the Indonesian Navy and renamed KRI Siribua.