Cape Capricorn

Commanding Officer
Evolved Cape Class
Role Patrol Boat
International Callsign
Home Port
Austal Ships, Fremantle
Dimensions & Displacement
Length 58.1 metres
Beam 10.6 metres
Draught 3.1 metres
Speed 26 knots (top speed)
Range 4000 nautical miles (12 knots)
Crew 25
Machinery 2 x Caterpillar 3516C diesels; 2 shafts; 1 bow thruster
Horsepower 6770
Guns Two 12.7mm machine guns
News Articles

Australian Defence Vessel (ADV) Cape Capricorn is the fourth of eight evolved Cape Class Patrol Boats being acquired to continue Navy’s contribution to the nation’s fisheries protection, immigration, customs and drug law enforcement operations. The vessels work hand-in-hand with other Government agencies as part of the Australian Border Force. 

ADV Cape Capricorn is one of eight evolved Cape Class Patrol Boats introduced into service with the Royal Australian Navy to replace the Armidale Class Patrol Boat capability.

ADV Cape Capricorn will be seamlessly integrated into service as a result of the close working relationship between Navy and the Australian Border Force which also operates a fleet of the Armidale Class Patrol Boats.

Most importantly, Patrols Boats are a primary enabler of the Australian Defence Force contribution to Operation SOVEREIGN BORDERS, which is a whole of government effort to protect Australia’s borders and offshore interests.

Our operations in association with Border Force, Australian Fisheries and Australian Federal Police protect against unauthorised entry, breaches of customs, immigration and drugs legislation, other illegal activity and in support of law enforcement, preserve the integrity of our national fish-stocks, our marine environment and other natural resources.

When protecting our borders, Patrol Boat crews are typically employed on a range of constabulary duties involving tracking, intercepting, stopping and boarding other vessels, and sometimes arresting their crews and seizing cargo.