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A Collins Class submarine is a long-range, multipurpose patrol submarine capable of both short-duration coastal missions, and long-duration open sea defensive and offensive operations. The submarines have a patrol endurance of more than two months, most of the time submerged.
The Collins Class submarines have all the attributes expected of a state-of-the-art submarine, including high manoeuverability, low signature patterns, and excellent shock endurance. They are also adapted to the specific environmental conditions and operational profiles applicable to the Royal Australian Navy.
With a displacement of over 3000 tonnes, the Collins Class submarines are the largest, and one of the most advanced conventional submarines in the world.
Submariners are astronauts of the deep, or the elite Service of the Navy. The technology and sophistication of today's submarines is akin to the space program. Being a part of this Service will test you to your limits, but you will be one of a select few who get to wear the 'Dolphins', a badge of distinction.
The Collins Submarine operates the Mk45 torpedo, a large and modern weapon capable of completely disabling a large ship with a single hit. They are deployed by the vessel's Combat Systems Operators.
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A job as a Cryptologic Systems Submarine sailor in the Navy is an exciting role where you will learn to operate the specialised equipment used to intercept and analyse electromagnetic emissions. Learn More
A Collins Class Submarine is a very good example of a hybrid vehicle. It runs 3 diesel engines and 3 electric generators used to charge a large bank of batteries. These batteries or the generators themselves power the electric motors which drive the propellers. The Sub must surface (or cruise just below the surface at periscope depth using an induction mast) to run the diesel engines. Once the batteries are fully charged, the Submarine can head underwater or proceed "deep". The batteries power the electric motors driving the propellers whilst underwater.
A Submarine or a Ship can float because the weight of water that it displaces is equal to the weight of the ship. The displaced water creates an upward movement called the buoyant force and acts opposite to gravity. Unlike a ship, a submarine can control the amount of water displaced, thus allowing it to sink and surface on Command.
To control its buoyancy, the Submarine has ballast tanks that can be alternately filled with water or air. When the Submarine is on the surface, the ballast tanks are filled with air and the Submarine's overall density is less than that of the surrounding water.
As the Submarine dives, the ballast tanks are flooded with water, the air in the ballast tanks is vented from the Submarine and the Submarine begins to sink. A supply of compressed air is maintained aboard the Submarine in air cylinders for life support and for use with the ballast tanks. In addition, the Submarine has movable sets of control surfaces on the stern (back) and hydroplanes located either side of the fin, to help control the angle of the descent.
A method called "degaussing" is used to routinely cancel out the vessel's magnetic field. This is important as undersea mines can often detect a local change in the earth’s magnetic field caused by a passing Submarine or Ship.
The Australian Submarine Rescue Vehicle (ASRV) REMORA is a 16.5 tonne Remotely Operated Rescue Vehicle built around a diving bell. It has room for seven people, the operator/attendant and six survivors. It is capable of operations in excess of 500m in a current of 3 knots and of mating to a sunken submarine lying at angles of up to 60° from the vertical.
The vehicle is powered and controlled by use of a 914m armoured electro-fibre optic umbilical which provides power to two 75hp hydraulic power units. It also passes sonar, communications and video data to a containerised Control Van aboard the rescue ship.
A team of three comprising a Pilot, Navigator and Dive Supervisor man the van. In a separate compartment at the rear of the van, the Naval Coordinator Rescue Forces communicates with the sunken submarine via underwater telephone, with the shore-based authorities via INMARSAT and with local rescue assets via VHF radio. Accompanying the suite is a containerised workshop van.
Electronics Technician Submariners operate maintain and repair all electronic, electrical, hydraulic and mechanical systems associated with guns, missiles, radar, sonar, navigation, combat data and communications equipment on board the sophisticated Collins Class submarines. Learn More
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