- Collins class submarine
HMAS Rankin, sixth submarine of the Collins class, underway in 2006
Class overview Builders: Australian Submarine Corporation Operators: Royal Australian Navy Preceded by: Oberon class Succeeded by: Collins-class submarine replacement project Built: 14 February 1990 – 18 March 2003 In commission: 27 July 1996 – present Completed: 6 Active: 3(I) General characteristics Type: Diesel-electric submarine Displacement: 3,051 tonnes (3,003 long tons) (surfaced)
3,353 tonnes (3,300 long tons) (submerged)
Length: 77.42 m (254.0 ft) Beam: 7.8 m (26 ft) Draught: 7 m (23 ft) at waterline Installed power: 3 x Garden Island-Hedemora HV V18b/15Ub (VB210) 18-cylinder diesel motors, 3 x Jeumont Schneider generators (1,400 kW, 440-volt DC) Propulsion: Main: 1 x Jeumont Schneider DC motor (7,200 shp, 5.4 MW), driving 1 x seven-bladed, 4.22 m (13.8 ft) diameter skewback propeller
Emergency: 1 x MacTaggart Scott DM 43006 retractable hydraulic motor
Speed: • 10.5 knots (19.4 km/h; 12.1 mph) (surfaced and snorkel depth)
• 21 knots (39 km/h; 24 mph) (submerged)
Range: • 11,000 nautical miles (20,000 km; 13,000 mi) at 10 knots (19 km/h; 12 mph) (surfaced)
• 9,000 nautical miles (17,000 km; 10,000 mi) at 10 knots (19 km/h; 12 mph) (snorkel)
• 32.6 nautical miles (60.4 km; 37.5 mi) at 21 knots (39 km/h; 24 mph) (submerged)
• 480 nautical miles (890 km; 550 mi) at 4 knots (7.4 km/h; 4.6 mph) (submerged)
Endurance: 70 days Test depth: Over 180 m (590 ft) (actual depth classified) Complement: Originally 42 (plus up to 12 trainees)
Increased to 58 in 2009
• Thales Scylla bow and distributed sonar arrays
• Thales SHORT-TAS towed sonar array
• Thales intercept array
• GEC-Marconi Type 1007 surface search radar
• Thales CK043 search periscope
•Thales CH093 attack periscope
• Modified Raytheon CCS Mk2 (AN/BYG-1)
Armament: 6 x 21-inch (530 mm) bow torpedo tubes
Payload: 22 torpedoes, mix of:
• Mark 48 Mod 7 CBASS torpedoes
• UGM-84C Sub-Harpoon anti-ship missiles
Or: 44 Stonefish Mark III mines
Notes: The combat system is in the process of being updated across the class, to be completed by 2014. These characteristics represent the updated equipment. The sonar is scheduled to commence upgrade from 2016–17.
The Collins class is a class of six Australian-built diesel-electric submarines operated by the Royal Australian Navy (RAN). The Collins class takes its name from Australian Vice Admiral John Augustine Collins; all six submarines are named after significant RAN personnel who distinguished themselves in action during World War II. The boats are the largest conventionally powered submarines in the world, and were the first submarines to be constructed in Australia, prompting widespread improvements in Australian industry.
Planning for a new class to replace the RAN's Oberon-class submarines began in the late 1970s and early 1980s. Proposals were received from seven companies; two were selected for a funded study to determine the winning design, which was announced in mid-1987. The submarines, an enlarged version of Swedish shipbuilder Kockums' Västergötland class and originally referred to as the Type 471, were constructed between 1990 and 2003 in South Australia by the Australian Submarine Corporation (ASC).
The submarines have been the subject of incidents and technical problems since the design phase, including accusations of foul play and bias during the design selection, improper handling of design changes during construction, major capability deficiencies in the first submarines, and ongoing technical problems throughout the early life of the class. These problems have been compounded by the inability of the RAN to retain sufficient personnel to operate the submarines — by 2008, only three could be manned, and from 2009 onwards, on average two or fewer were fully operational. The resulting negative press has led to a poor public perception of the Collins class.
It is expected that the Collins class will remain in service until the 2020s. Planning for a replacement class of up to twelve vessels commenced in 2007. The new boats are predicted to enter service from 2025, and be active until the 2070s.
- 1 Development and design
- 2 Construction
- 3 Problems during construction and trials
- 4 Characteristics
- 5 Operations and deployments
- 6 Replacement
- 7 Footnotes
- 8 Citations
- 9 References
- 10 External links
Development and design
The proposal for a new class of submarines to replace the Oberon class of diesel-electric submarines began in July 1978, when the RAN director of submarine policy prepared a paper detailing the need to start considering a replacement for the ageing Oberons. The paper also raised the suggestion that the majority of the submarines be constructed in Australia and that the number of submarines be increased beyond the six Oberons. Building the submarines in Australia was initially met with reactions predicting an impossible task because of the poor state of the Australian shipbuilding industry, and Australian industry in general, although campaigning by several figures in Australian industry who thought it could be done came to the attention of those spearheading the project to design the Oberon class replacement, and led to the view that it was both possible and feasible. The campaign to build submarines in Australia was also met with support from the Australian Labor Party and several trade unions.
The proposal was accepted by the defence operational requirements committee in August 1978, and the project was given the procurement designation of SEA 1114. Approval for the development phase of the project was given in the 1981–82 federal budget. The RAN had four main requirements: that the submarines were tailored to operating conditions in the Australasian region; that they be equipped with a combat system advanced enough to promote a long service life; that appropriate and sustainable infrastructure be established in Australia to construct the boats, then provide maintenance and technical support for their operational lifespan, and that the submarines were capable of peacetime and emergency operations in addition to their hunter-killer role. Ten submarines were envisioned, a number which was revised to between four and eight boats by the start of 1983, and later settled on the acquisition of six submarines, with the option to order two more.
Requests for tenders
The development of the submarine commenced in May 1983, when the government released a request for tender and approached seven of the world's nine diesel-electric submarine manufacturers for submissions. The submissions would be narrowed down to two based on the provided information, with these undergoing a funded study to determine the winning design. Tendering companies had to demonstrate how Australian industries would be incorporated into the project, and that they were willing to establish an Australia-based consortium to construct the submarines. All seven companies responded by the end of the year: the combined submissions totalling four tonnes (9,000 lb) of paper.
- Directions Techniques Des Constructions Naval of France originally supplied a design modified from the Agosta class, but the submission review board did not view this favourably, as the submarine was of the same vintage as the Oberons. Their submission was altered to a conventionally powered version of the Rubis-class nuclear submarine.
- The German companies Ingenieur Kontor Lübeck (IKL) and Howaldtswerke-Deutsche Werft (HDW) collaborated to offer an enlarged version of the Type 209 submarine, designated the Type 2000. Submarines based on the Type 209 design had been exported to several nations, but were not operated by the German Navy.
- Thyssen Nordseewerke, another German company, offered their TR-1700 class submarine. Like the Type 209, the TR-1700 was an export-only submarine design.
- Cantieri Navali Riuniti of Italy proposed a design based on their Sauro-class submarine, scaled up by 25%. The age of the early 1970s design was a concern, and the proposal was withdrawn early in the process.
- The Dutch partnership of United Shipbuilder Bureaux and Rotterdamsche Droogdok Maatschappij submitted the Walrus class. Their offer was identical to that constructed for the Royal Netherlands Navy, minus the Dutch combat system.
- Swedish shipbuilder Kockums submitted the Type 471 design, an enlarged version of the Västergötland-class submarine operated by the Swedish Navy.
- The United Kingdom company Vickers Shipbuilding & Engineering offered a design referred to as the Type 2400, that later became the Upholder class.
The review board concluded that the IKL/HDW Type 2000 was the best design offered, the Walrus class was rated as 'fair', while Kockums' and Vickers' proposals were considered 'marginal' contenders. However, none of the tenders completely matched the desired RAN specifications, and the two proposals selected would have to be redesigned during the funded study.
The Combat Data System was procured separately to the submarine design; fourteen companies were identified as capable of providing what the RAN wanted, from which eight were approached in January 1983 with a separate request for tender. Five responded: a consortium led by Rockwell International of the United States, Plessey of the United Kingdom, Signaal of the Netherlands, Sintra Alcatel of France, and a collaboration between the German Krupp Atlas Elektronik and the British Ferranti. Each tender was required to offer a system with a distributed architecture, despite the absence of an accepted definition for 'distributed computing' at that time, and had to show the cost of programming the software in Ada, although they could offer additional cost breakdowns for other programming languages.
By May 1985, three months behind schedule, the review board narrowed the tenders down to two contenders in each group: IKL/HDW and Kockums for the submarine, Rockwell and Signaal for the combat system. The Walrus and Type 2400 submarine designs were considered to be too expensive to manufacture because of inefficient building practices, while the combat data system tenders had been narrowed down by unjustified development risk in the Plessey and Krupp/Ferranti proposals, and the dual problems in the Sintra Alcatel tender of excessive power usage and incompatibility with the proposed American weapons system. On 9 May, the Australian cabinet approved the selections for the funded studies and decided that six submarines would be built, with the option for two more, all in Australia.
The companies were granted funding for project definition studies, from which the final selections would be made. Liaison teams were sent to each of the four companies to observe the development of the concepts presented in the initial proposals. As part of this process, the two submarine designers were required to establish a consortium with at least 50% Australian ownership: IKL/HDW joined with Eglo Engineering to form Australian Marine Systems, while Kockums (which had originally planned to work with Eglo) became part of a joint venture with the Australian branch of Chicago Bridge & Iron, Wormald International, and the Australian Industry Development Corporation to create the Australian Submarine Corporation.
During the study, various accusations of foul play by or unsuitability of both submarine designers were made by Australian politicians and the media. These included claims that the similar left-wing political leanings of the Australian Labor Party (ALP) and the Swedish Social Democratic Party, both in power at the time, would lead to a pro-Kockums bias, investigations into perceived coaching of IDL/HDW representatives in the questions to be asked at an ALP Caucus briefing session on the project, and public emphasis on security incidents in both Sweden and West Germany. These incidents either lacked supporting evidence or were proven false, and were the result of the Liberal Party attempting to discredit the Labor government, or pro-British politicians and organisations who believed both submarines were inferior to the Vickers Type 2400 offering.
The Dibb Report on the state of the Australian Defence Force was released in March 1986; it included advice that if the submarine project cost increased too much, the boats' capabilities should be scaled back to save money. Around the same time, Federal Treasurer Paul Keating began efforts to tighten fiscal policy and cut government spending across all portfolios. Consequently, despite his enthusiastic support for the project as a means to improve Australia's defence and industrial capabilities, Minister for Defence Kim Beazley advised the project heads that he would not be able to secure Cabinet approval for construction of the submarines if the predicted cost "started with a 4 [A$4 billion]".
Evaluation and final selection
The four tenders resulting from the study were submitted during October and November 1986. Although the IKL/HDW design was rated highest during the initial inspection, the evaluation team found that the German proposal was less attractive than previously thought. Although IKL/HDW claimed that their boat could meet the RAN's performance requirements, the evaluators concluded from the information provided that doing so would require the deactivation of all non-essential and some essential systems. Conversely, Kockums' proposal conceded that they did not meet the requirements, although evaluators found that the figures failed by only narrow margins, and believed that these were conservative. The evaluation team recalculated the capability statistics for both submarines to a common baseline, portraying the predicted Australian operating conditions, which generally saw Kockums' figures revised upwards, and those from IKL/HDW downwards. This resulted in growing support for the Type 471 bid, and outcries from the IKL and HDW groups, who questioned the validity of the recalculations and if the Australian evaluators had the experience to do this correctly.
Analysis of the two combat system proposals saw Signaal fall out of favour with the tender reviewers. This was primarily attributed to a cost-reducing re-design late in the process: the changes were not fully documented because of time constraints. Supporting documentation was further criticised by the reviewers for being vaguely worded and not using milspec terminology and standards. In addition, the system proposed by Rockwell appeared to have greater performance capabilities, and would be cheaper to implement.
On 18 May 1987, the Australian Cabinet approved the final design: Kockums' Type 471 submarine, fitted with the Rockwell system. The contract for construction of six submarines was signed on 3 June and valued at A$3.9 billion in 1986 prices, with allowances for inflation and the changing value of the Australian dollar. The submarine acquisition project was at the time the most expensive project ever undertaken by the Australian Defence Force, but was unseated from this title by the Anzac-class frigate project a few years later.
The Australian Submarine Corporation construction facility was established on previously undeveloped land on the bank of the Port River, at Port Adelaide, South Australia. Work on the site began on 29 June 1987, and it was opened in November 1989. South Australia was selected as the site of the construction facility based on the proposed location of the facility and promises by the State Government to help minimise any problems caused by workers unions. The state's bid was aided by careful promotion to both Kockums and IKL/HDW during early in the project, and problems with the other states' proposals: Tasmania and Western Australia lacked the necessary industrial base, New South Wales could not decide on the location of the construction facility, Victoria's proposed site was poorly sited, and building in Liberal-led Queensland would have been politically unwise for the project when Labor was in power both federally and in all other states.
Each submarine was constructed in six sections, each consisting of several sub-sections. One of the main criteria of the project was that Australian industries contribute to at least 60% of the work; by the conclusion of the project 70% of the construction and 45% of the software preparation had been completed by Australian-owned companies. Work was sub-contracted out to 426 companies across twelve countries, plus numerous sub-sub-contractors. In many cases, components for the first submarine were constructed by companies outside Australia, while those for the following five boats were replicated by an Australian-owned partner or subsidiary. The project prompted major increases in quality control standards across Australian industries: in 1980, only 35 Australian companies possessed the appropriate quality control certifications for Defence projects, but by 1998 this had increased to over 1,500.
Although the acquisition project organisers originally planned for the first submarine to be constructed overseas, the Cabinet decided as part of the project's approval that all six submarines would be built in Australia; the increases in construction time and cost from not building the lead ship in the winning designer's home shipyard was considered to be offset by the additional experience provided to Australian industries. Even so, two sections of the first submarine were constructed by Kockums' shipyard in Malmo, Sweden.
By the end of 1990, Chicago Bridge & Iron and Wormald International had both sold their shares in ASC. The shares were bought up by Kockums and the Australian Industry Development Corporation, with some of Kockums' shares then sold to James Hardie Industries to maintain an Australian majority ownership of the company. On 5 April 2000, the shares in ASC held by Kockums were bought out and the company was nationalised, despite a trend at the time to privatise government-owned companies. At the end of 2003, a contract to maintain the Collins class worth $3.5 billion over 25 years was awarded to ASC.
As of April 1996, the option to order the seventh and eighth submarines was still under consideration, but was looked on unfavourably by the Department of Defence at the time, as the additional cost would require the diversion of funding from the Australian Army and Royal Australian Air Force, resulting in an imbalance in the capabilities of the Australian Defence Force. The option was cancelled outright by late 2001.
Entry into service
The first submarine, HMAS Collins, was laid down in February 1990. Collins' launch was originally planned for 1994, but was later set for 28 August 1993. Although launched on schedule, she was not complete: the design of the submarine had not been finalised, important internal pipes and fittings were not installed, the components of the combat system had yet to be delivered, and some hull sections were actually sheets of timber painted black so the submarine would appear complete in photographs of the launching ceremony. Within weeks of the launch, Collins was removed from the water, and it was not until June 1994 that the submarine was completed. Progress on the other five submarines was delayed by the extra effort required to meet Collins' launching date and the subsequent work to complete her. Collins was not commissioned into the RAN until 27 July 1996; eighteen months behind schedule, because of several delays and problems, most relating to the provision and installation of the combat data system software. Collins was not approved for operational deployments until 2000.
The other five submarines were scheduled for completion at 12-month intervals. However, the series of defects and problems encountered during sea trials of the submarines (particularly Collins) resulted in the repeated diversion of resources from those still under construction, adding to delays. Consequently, delivery of the submarines ran significantly behind schedule; submarines were presented to the RAN between 21 and 41 months late, and the entire class was not cleared for full operational service until March 2004, a year after the last boat was commissioned. These delays forced the RAN to keep several Oberon-class submarines and the submarine base HMAS Platypus in service beyond their planned decommissioning dates.
McIntosh-Prescott Report and Fast Track program
Following his appointment as Minister for Defence following the 1998 federal election, John Moore decided that the only way to solve the various problems of the Collins class was for an independent report to be prepared on them. He appointed Malcolm McIntosh, chief executive of the CSIRO and an unofficial advisor to Moore, and John Prescott, a former BHP director, to investigate the project, uncover the problems with the submarines, and suggest ways of solving them.
The Report to the Minister for Defence on the Collins class submarine and related matters (commonly referred to as the McIntosh-Prescott Report) was compiled in ten weeks, and released on 1 June 1999. This report concluded that the Collins class was incapable of performing at the required level for military operations. Although the report highlighted several elements of the submarine design that performed to or beyond expectations, and acknowledged that many of the publicised problems had been or were in the process of being fixed, it presented the propulsion system, combat system, and excessive noise as ongoing problems across the class. After identifying the combat system as the central problem, McIntosh and Prescott recommended that it be scrapped entirely and replaced with a system based on commercially available equipment and software. They also claimed that these problems were caused by poor design and manufacture; inappropriate design requirements; deficiencies in the structure of the contract, particularly with regards to modifying the contract to meet changing requirements; and problems between the various parties involved in the construction of the submarines, with a lack of overall direction and conflicts of interest causing avoidable hostility and uncooperativeness. Despite the report being promoted by the government as 'ground-breaking', many people involved with the Collins-class project later claimed that large sections of the report could have been copied from reports previously submitted by the RAN or ASC.
The report, along with the planned December 2000 decommissioning of the final Oberon-class submarine, Otama, prompted the establishment of an A$1 billion program to bring the fourth and fifth submarines (Dechaineux and Sheean) up to operational standards, then retrofit the modifications to the other boats. Referred to as the "fast track" or "get well" program, the program also included solving the problems preventing various parties from cooperating fully, and improving the negative media coverage and public perception of the class by responding to criticism and providing more information to reporters.
Submarines in class
Name Pennant Laid down Launched Delivered Commissioned Namesake Collins SSG 73 14 February 1990 28 August 1993 15 July 1996
(18 months late)
27 July 1996 Sir John Augustine Collins Farncomb SSG 74 1 March 1991 15 December 1995 15 December 1997
(22 months late)
31 January 1998 Harold Bruce Farncomb Waller SSG 75 19 March 1992 14 March 1997 30 April 1999
(27 months late)
10 July 1999 Hector MacDonald Laws Waller Dechaineux SSG 76 4 March 1993 12 March 1998 21 July 2000
(31 months late)
23 February 2001 Emile Frank Verlain Dechaineux Sheean SSG 77 17 February 1994 1 May 1999 25 August 2000
(21 months late)
23 February 2001 Edward Sheean Rankin SSG 78 12 May 1995 26 November 2001 18 March 2003
(41 months late)
29 March 2003 Robert William Rankin
Problems during construction and trials
The Collins-class submarines experienced a wide range of problems during their construction and early service life. Many of these were attributed to the submarines being a new, untested design, and were successfully addressed as they were discovered. Most systems and features worked with few or no problems, while the boats' maximum speed, manoeuvrability, and low-speed submerged endurance were found to exceed specifications. The ship control system, which during development had been marked as a major potential problem, functioned beyond positive expectation: for example, the autopilot (which aboard Collins was nicknamed 'Sven') was found to be better at maintaining depth during snorting than most helmsmen.
However, problems with the combat system, excessive noise, and engine breakdowns were recurring and appeared across the entire class. These and other shortcomings were often made harder to solve by disagreements between Kockums, ASC, Rockwell, the RAN, and the Australian Government over the nature of problems, their causes, and who was responsible for solving them. Media reporting of the problems during the mid-1990s was often negative and exaggerated, creating poor public perception. This was aided by politicians, who used the shortcomings to politically attack the Labor Party and Kim Beazley, particularly after Labor was defeated by the Liberal-National Coalition in the 1996 federal election, and Beazley became Leader of the Opposition. During the mid-1990s, it was recommended on several occasions that the submarine project be abandoned, and the completed submarines and incomplete hulls be broken up for scrap.
Following the McIntosh-Prescott Report, which indicated the long-term faults with the class that still required solving, successful efforts were made to bring the submarines to operational standard. As part of this, a public relations plan was implemented to provide up-to-date information on the submarines to the media, to improve the public perception of the class by providing factual information on the status of the project and responding to queries and incidents. This same period saw the dispelling of the idea, widely-held within the RAN, that the Collins-class boats would be like any other vessel previously ordered by the RAN: in service with another navy, well tested, and with all the problems solved before they entered Australian hands. The RAN began to realise that as the parent navy for the class, they had a greater responsibility than normal in ensuring that the boats were at an operational standard.
Welding of Collins
During assembly of Collins' bow section in Sweden, multiple defects in the hull welding were discovered. Different reasons were given by different parties for the problems: the steel alloy used for the hull required different welding techniques to those normally used by Kockums; the Swedish navy always requested partial penetration welds for their submarines, while the RAN wanted full penetration welding, but had not made this clear; delays in delivering the steel plates to Kockums resulted in rushed work and a resulting drop in quality. Kockums engineers proposed that the section be kept in Sweden for repairs, but to minimise delays it was accepted as-is, with repairs attempted at ASC during full assembly of the first boat.
However, when Collins returned to the ASC facility in April 2001 for a year-long maintenance docking, multiple welding defects were found in the bow and escape tower sections of the submarine (the two sections constructed by Kockums), while almost no problems were found in the welding of the four Australian-built sections. Repairing these welds quadrupled the time Collins spent in dock.
The noise made by the submarines, which compromised their ability to stay hidden, was another major problem with the design. In the original requisition, the RAN guidelines for the noise signature of the new submarines were vague; for example, asking that they be "twice as quiet" as the Oberons. Expectations and operational requirements also changed between the 1987 contract signing and when the submarines began operating in the late 1990s. The major element of the noise signature for the Oberon class was machinery noise transmitted through the hull; this was successfully avoided during construction of the Collins class by mounting machinery on platforms isolated from the hull.
Noise testing during 1996 and 1997 found that the hydrodynamic noise signature—the noise made by a submarine passing through the water—was excessive, particularly at high speed. The shape of the hull was the main cause: although a scale model of the design had been tested during the funded study and was found to have a minimal signature, the hull shape was changed after the contract was signed, primarily by a 2-metre (6.6 ft) lengthening of the submarine and a redesign of the bow dome to accommodate the larger-than-expected main sonar and reduce its blind spot (the baffles). The design had not been retested, as who would pay for this could not be agreed on. Propeller cavitation, caused by water flow over control surfaces onto the propeller at certain speeds was the other main noisemaker. Cavitation had not been a problem with earlier Swedish submarine designs or during early testing of the Type 471 design, but the propeller had to be redesigned late in the process to provide more power, and like the redesigned hull, was not retested. Subsequent studies by the Defence Science and Technology Organisation showed that the submarine's hull shape, particularly the redesigned sonar dome, the fin, and the rear of the submarine, focused the displaced water into two turbulent streams; when the seven propeller blades hit these streams, the propeller's vibration was increased, causing cavitation. These problems were fixed by modifying the casing of the submarine with fibreglass fairings.
During trials of the first submarines, the propulsion system were found to be prone to failure for a variety of reasons. Most failures were attributed to the fifteen-tank diesel fuel system: the tanks were designed to fill with salt water as they were emptied to maintain neutral buoyancy, but water would regularly enter the engines due to a combination of poor design, gravity separation of the fuel and water being insufficient, and operator error resulting from poor training. Problems were also caused by bacterial contamination of the diesel fuel, which, along with the salt water, would cause the fuel pumps to rust and other components to seize. The fuel-related issues were solved by installing coalescers, improving training and operational procedures, and adding biocides to the fuel.
Propeller shaft seals were a significant problem on Collins and Farncomb. Although designed to allow for a leak of 10 litres (2.2 imp gal; 2.6 US gal) per hour, during trials it was found that the seals would regularly misalign and allow hundreds of litres per hour into the boat—during one deep diving test the flow rate was measured at approximately 1,000 litres (220 imp gal; 260 US gal) a minute. ASC claimed that solving these problems could be done by manually adjusting the seals as the submarine dove and rose, but this would have required a sailor dedicated solely to that task, affecting efforts to minimise the required number of personnel. It was found that the problem could be temporarily alleviated by running the propeller in reverse for 100 revolutions, pulling the seal back into alignment, although a permanent solution could initially not be found, as ASC refused to accept responsibility for the problem, and the original manufacturer of the seals had closed down. New suppliers were found, with modified seals fitted to the first two submarines in late 1996, before completely re-designed seals were fitted to the boats in late 1997, solving the problem.
The propellers themselves were also found to be poorly manufactured, having been shaped by hand, with at least one cast at the wrong pitch. This was rectified by using a five-axis milling machine for future shaping work and replacing the miscast propeller. The material used for the propellers was also found to be weaker than expected, developing fatigue cracks after only a few years of use. Instead of going to Kockums, which had started to go into decline after the end of the Cold War, the submarine project office sent the propeller to the United States Navy for redesigning. Despite the Americans fixing the problems with the propeller design, resulting in significant performance improvements, the Swedish company was dissatisfied with the Australian actions; the dispatch of the propellers was one of the points of contention in the company's legal action in the mid-2000s against the Australian government over ownership of the intellectual property rights to the submarine's design.
Other propulsion problems included excessive motor vibrations at certain speeds which damaged various components (which was attributed to the removal of a flywheel and to corrosion caused by the fuel problems), and excessive fuel consumption in Collins at high speed (found to be caused by manufacturing problems with the turbines and turbochargers). The propulsion system was also found to be a secondary source of noise: poor design of the exhaust mufflers, weight-saving measures in the generator mountings, and an incorrect voltage supply to the battery compartment exhaust fans were noise-creating factors found and eliminated during studies by the Defence Science and Technology Organisation.
In March 2010, the Department of Defence revealed that the generators in five of the submarines were flawed and had to be replaced. The three Australian-made generators aboard each of the five submarines (the generators aboard Collins were French-built, and exhibited no defects) are to be replaced in the submarines as they come in for their next maintenance docking.
Periscopes and masts
The periscopes had two problems, the first of which was shared with the other masts. They were not streamlined; raising a periscope while moving would create enough drag and turbulence to shake the entire submarine. As with many elements of the submarine, there were disagreements as to who was responsible for the problem. It was solved by modifying the masts to redirect the water flow around them (for example, a spiral wrap was fixed around the head of each periscope).
The periscopes also had problems with their optics: periscope users reported difficulty in refocusing after changing magnification, duplication of images, and bands across the field of vision. These problems were attributed to RAN demands that the optical view be the first exposed when a periscope was raised above the water, instead of placing the infrared sensor and single-pulse radar at the head as on other submarines, requiring the optical path to be routed around these components. The periscopes were gradually improved, and were no longer a problem by the time the fast track submarines entered service.
Despite the public focus on the various physical issues with the boats, the major problem with the submarines was the development of the Rockwell combat system. The problems had started during the funded study, when Singer Librascope and Thomson CSF, who were partnering with Rockwell to develop the combat system, refused to release their intellectual property or their software code for Rockwell to sell. It was proposed that Computer Sciences of Australia, a division of Computer Sciences Corporation and a minor partner in the consortium, take over the role of writing the software for the combat system, although this meant that Singer Librascope, which had prior experience in creating submarine combat systems, was reduced to a minor role in the project. Other major problems with the system, to which most of the later difficulties were attributed, were that the original concept was beyond the technology of the day, and that the system architecture required by the RAN was both overly ambitious and flawed. This was compounded by the rate of advancement in computer technology: equipment had to be designed from scratch and custom manufactured at the start of the project, but by the time these were installed, they were obsolete compared to commercially-available hardware and software.
Australian Submarine Corporation was made responsible for the delivery of the Rockwell combat system, but had little ability to enforce this. Rockwell was contracted to deliver the combat system by 9 September 1993, but was unlikely to do so. ASC's management board voted to issue a default notice to Rockwell as the American company had defaulted on the contract, but was ordered by the Department of Defence to retract the default notice and accept gradual delivery of partially completed versions of the combat system—referred to as 'releases' and 'drops'—until the complete system had been delivered. Sea trials of Collins were unable to commence until Release 1.5 of the combat system software was delivered; because of ongoing delays in the provision of the software, the early phases of the trials were completed using stand-alone equipment By March 1994, the combat system had become the major area of concern for the submarine project: assembly of the system was almost nine months behind schedule, and at least 20% of the software had not been compiled. The combat system continued to be a problem during the next few years, with progressive drops offering little improvements in performance over the previous version, and the completion date of Release 2—the designation for the full contractual realisation of the combat system software—was continually postponed.
In 1996, Rockwell sold its military and aerospace division, including responsibility for the Collins combat system, to Boeing. Boeing attempted to produce a workable combat system, but believed that this could only be done if the changes in technology were accounted for in a contract alteration, which the RAN and the Australian Government initially refused to do. Boeing then requested assistance from Raytheon, and after further negotiations with the Government resulted in a reduction of the system capabilities, the companies were able to stabilise the system and deliver Release 2.0 at the end of 1999. Boeing sold its naval systems division to Raytheon in May 2000, making the latter company solely responsible for completion of the combat system. After this, the submarine project began investigating ideas for a new combat system. Because there was not enough time to evaluate the replacement system to include it in the "fast track" program, Dechaineux and Sheean were fitted with the old Rockwell combat system, which was enhanced by the addition of sub-systems developed during the early 1980s for the Oberon-class mid-life upgrade and commercial off-the-shelf components. Even with the enhanced system, it was believed that the capabilities of the fast track Collins boats was at best equivalent to the Oberons.
Lockheed Martin, Thales, STN Atlas, and Raytheon were approached to provide tenders to design and assemble a new combat system for the submarines, with all four submitting proposals during early 2000. In May 2000, after the Defence Science and Technology Organisation tested operational versions of the proposed combat software packages, the Lockheed and Thales tenders were eliminated, despite the Thales proposal being rated better than Raytheon's. After indepth testing of the remaining systems and observations of the systems in action, the German STN Atlas ISUS 90-55 aboard an Israeli Dolphin-class submarine and the American Raytheon CCS Mk2 aboard a USN Los Angeles-class submarine, it was decided that the STN Atlas system was the best for the class. However, political pressure from both the United States and Australia, questions about the security problems and possible leaks involved with a European combat system linked to American weapons, and desires to increase the political and military ties between Australia and the United States resulted in the cancellation of the tender program in July 2001 and the decision to enter a joint development program with the United States, with a formal agreement signed on 10 September 2001 at the Pentagon.
The second combat system development program proceeded with far fewer problems, and took the tactical and fire control components from the CCS Mk2 system, and the sonar interface component from the fast track program. This system is the same as the AN/BYG-1 system which was fitted to United States Navy submarines during the 2000s. The new combat system was installed on Waller in 2006, and was to be fitted to the other five Collins-class submarines (in the order of Dechaineux, Collins, Farncomb, Sheean, then Rankin) by 2010, but delays in the maintenance cycle combined with the manning and mechanical problems during the late 2000s have pushed this date back to 2014.
Several newspaper articles and commentators have incorrectly claimed that the project ran significantly over the contract cost. As of the launch of the first submarine, the project cost had increased from A$3.892 billion in 1986 dollars to A$4.989 billion in 1993 dollars, which corresponded to the rate of inflation during that period. By 2006, A$5.071 billion had been spent to build the submarines (excluding the fast track program); after taking inflation into account, the project had run less than A$40 million over contract.
Of the A$1.17 billion allocated to the fast track program, only A$143 million was required to fix problems where the submarines did not correspond with the original contract: the rest was used to update components that were technologically obsolete and make changes to the submarines beyond the contract specifications. When the fast track program is factored in, the Collins class cost just under 20% more than the inflation-adjusted contract value; a smaller increase than other contemporary defence projects.
The Collins class is an enlarged version of the Kockums Västergötland class submarine. The design was referred to as the Type 471 Submarine until it was decided to name the lead boat, HMAS Collins, after RAN Vice Admiral Sir John Augustine Collins. The names of the six submarines was first announced during Collins' laying down ceremony: Collins, Farncomb, Waller, Dechaineux, Sheean, and Rankin; all named after Australian naval personnel who distinguished themselves during World War II. The Collins class submarines are classified by the RAN as SSGs, or guided missile carrying submarines, while some defence industry websites refer to the boats as hunter-killer submarines, or SSKs.
At 77.42 metres (254.0 ft) in length, with a beam of 7.8 metres (26 ft) and a waterline depth of 7 metres (23 ft), the six boats are the largest conventionally powered submarines in the world. The submarines are single-hulled, and have two continuous decks. Each boat displaces 3,051 tonnes (3,003 long tons) when surfaced, and 3,353 tonnes (3,270 m3) when submerged. The depth that the submarines can dive to is classified: most sources claim that the diving depth is in excess of 180 metres (590 ft), although some give the maximum depth as over 300 metres (980 ft). Following the near-loss of Dechaineux in 2003 when a seawater hose burst during a deep dive, the diving depth was reduced.
The hull is constructed from a high-tensile micro-alloy steel, developed by Swedish steel manufacturer SSAB, and improved by BHP of Australia, which was lighter and easier to weld than the HY-80 or HY-100 nickel-alloy steel used in contemporary submarine construction projects, while providing better results in explosion bulge testing. The submarines are covered in a skin of anechoic tiles to minimise detection by sonar: Collins was retrofitted with the tiles after the standard sonar signature of the submarine had been established, while the other five boats were covered during construction. These tiles were developed by the Australian Defence Science and Technology Organisation: as the United States and United Kingdom would not share their information on the tiles, used on their nuclear submarines, Australian researchers had to develop the tiles from scratch. The tiles were moulded in the shape of the hull, and are secured by a commercial adhesive normally used to fix cat's eyes to road surfaces: although British and American submarines are often seen with missing tiles, as of March 2007, none have been lost from a Collins class boat.
The Collins class submarines are armed with six 21-inch (530 mm) torpedo tubes, and carry a standard payload of 22 torpedoes. Originally, the payload was a mixture of Gould Mark 48 Mod 4 torpedoes and UGM-84C Sub-Harpoon anti-ship missiles; previously carried by the Oberon class boats. In 2006, the Mark 48 torpedoes were upgraded to the Mod 7 Common Broadband Advanced Sonar System (CBASS) version, which was jointly developed with the United States Navy (USN). Waller was the first vessel of either navy to fire an armed Mod 7, sinking the decommissioned Spruance class destroyer USS Fletcher on 16 July 2008, during RIMPAC 08. Some or all of the torpedo payload can be replaced with up to 44 Stonefish Mark III mines.
During the construction phase, consideration was given to acquiring submarine-launchable Tomahawk cruise missiles; giving the boats the capability to attack land targets after minor modifications. Plans to acquire Tomahawk or similar land-attack missiles remained under consideration until 2009, when the Defending Australia in the Asia Pacific Century: Force 2030 white paper was released; stating that land-attack missiles will instead be incorporated into the armament of the Collins class replacement.
The Collins class boats are also capable of supporting special forces teams. In 2005, Collins was fitted with various modifications to support special forces, including exterior shelters for inflatable boats. Dechaineux was modified in 2006, and the other submarines will receive the hatches during their full cycle docking.
Each submarine is equipped with three Garden Island-Hedemora HV V18b/15Ub (VB210) 18-cylinder diesel motors, which are each connected to a 1,400 kW, 440-volt DC Jeumont Schneider generator. The combined electrical generation capability of each submarine is 4.2 megawatts. The Hedemora diesels were chosen because of modular construction, which made servicing easier; they could be installed three across in the available space, while other contenders required at least two banks of two; and they ran with turbochargers driven by the exhaust gas. Fifteen fuel tanks are located throughout the submarine: they must be used in specific sequences to preserve the submarine's buoyancy and trim.
Electricity is stored in four 400-tonne lead-acid batteries assembled by Pacific Marine Batteries, a joint venture between VARTA of Germany and Pacific Dunlop of Australia. These supply a single Jeumont Schneider DC motor, which provides 7,200 shaft horsepower to a seven-bladed, 4.22-metre (13.8 ft) diameter skewback propeller. The propeller design is classified Top Secret, and must be covered before a Collins class submarine can be removed from the water for maintenance. Emergency propulsion is provided by a MacTaggart Scott DM 43006 retractable hydraulic motor. The aft control surfaces are mounted on an X-shaped structure, giving the boats the ability to outmanoeuvre most warship and submarine classes.
The Collins class has a speed of 10.5 knots (19.4 km/h; 12.1 mph) when surfaced and at snorkel depth, and can reach 21 knots (39 km/h; 24 mph) underwater. When travelling at 10 knots (19 km/h; 12 mph), the submarines have a range of 11,000 nautical miles (20,000 km; 13,000 mi) along the surface, or 9,000 nautical miles (17,000 km; 10,000 mi) at snorkel depth. When fully submerged, a Collins class submarine can travel 32.6 nautical miles (60.4 km; 37.5 mi) at maximum speed, or 480 nautical miles (890 km; 550 mi) at 4 knots (7.4 km/h; 4.6 mph). Each boat has a endurance of 70 days.
Nuclear propulsion was ruled out at an early stage of the project, because supporting nuclear submarines without a nuclear power industry in Australia and public opposition to such infrastructure would be extremely difficult. Air-independent propulsion (AIP) was also considered for the class, and the submarines were designed to be retrofitted with an AIP system. The AIP plan was cancelled in July 1996, after it was demonstrated during sea trials that during constant operations, the boat's snorkel was exposed for only a few minutes in a 24-hour period; officials from ASC claimed that any Collins class submarine spotted while snorting would be because the boat was "dead unlucky". Installation of AIP was not believed to provide enough of an improvement on this to justify the predicted A$100 million cost.
Sensors and systems
Thales is the provider of both the Scylla bow sonar and the distributed sonar array. The bow sonar is located in the nose of the submarine, while the distributed or flank array is made up of six rectangular panels, three secured to each flank of the boat. Collins and Farncomb were originally fitted with Thales Karriwarra passive towed sonar arrays, while the other four boats could be fitted with the Karriwarra or Thales' Namara array. The towed array is approximately 1,000 metres (3,300 ft) long, 45 millimetres (1.8 in) in diameter, and deployed through the horizontal 'pipe' at the stern. The submarines' intercept array, which is located in a vertical projection from the top of the bow and used for electronic warfare, was upgraded to an ArgoPhoenix AR-740-US array from 2007 onwards. When surfaced or at periscope depth, the Collins class boats can use a GEC-Marconi Type 1007 surface search radar, which is situated in a retractable mast on the fin.
Each submarine is fitted with a CK043 search periscope and CH093 attack periscope. The periscopes were manufactured by Pilkington Optronics (now Thales Optronics), and experienced several problems early in the submarines' service lives.
The hardware for the original combat system was based around the Motorola 68000 family of processors. The replacement combat system consists of the tactical and fire control components from the Raytheon CCS Mk2 system, combined with the sonar interfaces developed for the improved combat system used aboard Sheean and Dechaineux. The boats are fitted with a Marconi SDG-1802 degaussing system, and a receive-only Link 11 combat information exchange datalink. In October 2006, Sagem Défense Sécurité was selected to fit the Collins class with SIGMA 40XP gyrolaser inertial navigation systems.
At least one more major upgrade of the sonar and communication systems will occur before the class is replaced.
Originally, the standard complement of each submarine was six officers and thirty-six sailors, with facilities to carry an additional twelve personnel (usually trainees). This number was minimised by the RAN during design, which insisted that functions be automated where possible; the RAN also requiring that each sailor have his own rack and did not need to 'hot bunk'. It was originally intended that multiple ship's companies be established per submarine, and that these be rotated to maximise the submarines' time at sea without adversely affecting personnel, but difficulties in maintaining submariner numbers made this plan unworkable. Enlisted submariners are accommodated in six-bunk cabins.
In May 1997, two groups of six female sailors were posted to Collins and Farncomb to test the feasibility of mixed-sex submarine companies. Following the trial's success, eleven female sailors and one female officer commenced submarine training in 1998, making Australia the second nation in the world (following Norway in 1995) to allow women to serve on submarines. Officers and senior enlisted submariners slept in mixed accommodation, but junior enlisted submariners could only be deployed in groups of six: one of the enlisted cabins was set aside, and all six bunks in the cabin had to be filled. Mixed accommodation for all female submariners was approved in June 2011, in order to increase posting opportunities and help make up shortfalls in submarine complements.
During the late 1990s, a combination of low recruitment and retention rates across the RAN resulted in the number of trained submariners falling below 40% of that required. As an attempt to retain submariners, the RAN offered a one-off A$35,000 bonus in 1999. Other measures introduced around the same time included priority transfer of volunteers for submarine training and rotating submariners between sea and shore assignments to relieve them from continual sea service and prevent burnout. A year later, these measures had increased submariner numbers to 55% of requirements.
However, the problem with submarine crewing continued; by 2008 the RAN could only provide complete companies for three of the six submarines. A review by Rear Admiral Rowan Moffitt during 2008 (the Submarine Workforce Sustainability Review or Moffitt Report) found that poor leadership and a culture of "mission achievement at almost any cost" resulted in submariners who were regularly stressed and fatigued from working for up to 22 hours in a stretch, under conditions worse than those experienced by the Special Air Service during the ongoing Afghanistan conflict. Submariners were also found to have lower morale and job satisfaction levels than any other position in the RAN, with these factors combining to cause a high rate of personnel burnout, while resignations meant that the average experience level in those remaining decreased. The report, publicly released in April 2009, made 29 recommendations to improve conditions and stabilise or increase submariner numbers; all of which the RAN agreed to adopt. These measures included increasing each boat's complement to 58 to spread workload (a practice successfully employed aboard Farncomb since December 2008), reducing the length of patrols and increasing shore leave, paying bonuses for submariners who remain in the submarine service for at least eighteen months, and providing internet access aboard the submarines. A dedicated recruiting program was also suggested, promoting the submarine service as an elite unit, and targeting RAN personnel aboard surface ships, former submariners whose civilian jobs may have been affected by the global financial crisis, and submariners in foreign navies. The program was successful; by June 2010, three expanded ship's companies were active, while a fourth was undergoing training.
The Collins class submarines return to the ASC facility in South Australia for maintenance and upgrades on four occasions during every six years of operation. These occur approximately every eighteen months: the first and third are ten-week long 'intermediate dockings', and the second, or 'mid-cycle docking', lasts sixteen weeks. At the end of six years, each boat comes in for her 'full cycle docking', which involves completely refurbishing the submarine. During these dockings, the submarines are fitted with any enhancements or new technologies as part of the Collins Continuous Improvement Program (part of Defence procurment project SEA 1439).
The six Collins class submarines are the most expensive items in the Australian Defence Force inventory. The annual cost of operating and maintaining the class was estimated at A$100 million in 2000, and at A$322 million in 2008.
There have been concerns about the capability of ASC to handle the maintenance of the submarines. The workplace efficiency of tradespeople was found to be low, and Defence officials believe that the full cycle docking (which was intended to take a year per submarine, but as of 2009 was averaging three years) could be handled more efficiently.
Operations and deployments
The entire class is based at HMAS Stirling, also known as Fleet Base West, which is located on Garden Island, off the coast of Western Australia. The decision to locate all six submarines at Stirling was prompted by the lack of suitable long-term facilities on the east coast of Australia (although individual submarines can use Fleet Base East in Sydney Harbour as a forward staging facility), and the proximity to Australian offshore interests, including most of the nation's external territories, the oil and natural gas resources of the North West Shelf, and the Indian Ocean sea lines of communication, through which the majority of Australia's seaborne trade passes. The submarines' primary missions are patrolling the waters of Australia and nearby nations, and gathering intelligence through the interception of electronic communications by foreign nations and the deployment/retrieval of special forces operatives.
HMAS Waller reportedly operated in support of the International Force for East Timor (INTERFET) in 1999. Although not assigned to INTERFET, the submarine acted as a deterrent to Indonesian submarines, and may have covertly landed clearance divers in advance of the INTERFET fleet's arrival.
During several multinational exercises and wargames, the Collins class has demonstrated its effectiveness in the hunter-killer role by successfully attacking both surface warships and other submarines. In late May 2000, Waller became the first Australian submarine to operate as a fully integrated component of a USN carrier battle group during wargames. Waller's role was to search for and engage opposing submarines hunting the aircraft carrier USS Abraham Lincoln, a role in which she performed better than expected. A few days later, as part of the multinational exercise RIMPAC 2000, Waller was assigned to act as an 'enemy' submarine, and was reported to have successfully engaged two USN nuclear submarines before almost coming into attacking range of Abraham Lincoln. Waller performed similarly during the Operation Tandem Thrust wargames in 2001, when she 'sank' two USN amphibious assault ships in waters just over 70 metres (230 ft) deep, although the submarine was 'destroyed' herself later in the exercise. Waller's second feat was repeated by Sheean during RIMPAC 02, when the boat was able to penetrate the air and surface anti-submarine screens of an eight-ship amphibious task force, then successfully carry out simulated attacks on both the amphibious assault ship USS Tarawa and the dock landing ship USS Rushmore.
Later that year, during two weeks of combat trials in August, Sheean demonstrated that the class was comparable in the underwater warfare role to the Los Angeles-class nuclear powered attack submarine USS Olympia. The two submarines traded roles during the exercise and were equally successful in the attacking role, despite Olympia being larger, more powerful, and armed with more advanced torpedoes. In 2003, a Collins-class boat carried out successful attacks on two USN nuclear submarines and an aircraft carrier during a multinational exercise. The repeated successes of the class in wargames and multinational exercises earned the Collins class praise from foreign military officers for being "a very capable and quiet submarine", and recognition of the boats as a clear example of the threat posed to navies by modern diesel submarines.
On 12 February 2003, Dechaineux was operating near her maximum safe diving depth off the coast of Western Australia when a seawater hose burst. The high-pressure seawater flooded the lower engine room before the hose was sealed off: it was estimated that if the inflow had continued for another twenty seconds, the weight of the water would have prevented Dechaineux from returning to the surface. The RAN recalled the Collins-class submarines to base after the incident; after engineers were unable to determine any flaws in the pipes that could have caused the incident, the maximum safe diving depth of the class was reduced.
On 10 June 2005, Rankin became the first submarine since Orion in 1987 to receive the Gloucester Cup, an award presented to the RAN vessel with the greatest overall efficiency during the previous year. The award was subsequently presented to Sheean in 2006, and again to Rankin in 2008.
In 2008 and 2009, personnel shortages reduced the number of submarines able to be deployed to three; the maintenance cycles of Sheean, Rankin, and Dechaineux, and problems with Collins and Waller further reducing this to one, Farncomb, in mid-2009. Farncomb was docked for repair after a generator malfunction in February 2010, by which point Collins and Waller were active (the former on limited duties because of defects), and Dechaineux was slated to re-enter service by May 2010. Workforce shortages and malfunctions on other submarines during the preceding two years impacted heavily on the maintenance of Sheean and Rankin, with RAN and ASC officials predicting that they will not be active until 2012 and 2013, respectively. In June 2011, The Australian newspaper claimed despite two submarines (Waller and Dechaineux) designated as operational, neither was in sailable condition.
The submarines have a predicted operational life of around 30 years, with Collins to decommission around 2025. The Submarine Institute of Australia released a report in July 2007 arguing that planning for the next generation of Australian submarines had to begin soon.
In December 2007, a month after coming into office following the 2007 federal election, Minister for Defence Joel Fitzgibbon announced that planning for the Collins class replacement (designated SEA 1000) had commenced. The 2009 Defending Australia in the Asia Pacific Century: Force 2030 white paper confirmed the replacement project, and announced that the submarine fleet would be increased to twelve vessels in order to effectively sustain operations during conflict.
By 2009, the replacement submarine had been outlined as a 4,000-ton vessel fitted with land-attack cruise missiles in addition to torpedoes and anti-ship missiles, capable of launching and recovering covert operatives while submerged, and carrying surveillance and intelligence-gathering equipment. The class is predicted to cost up to A$36 billion, with construction each submarine valued between A$1.4 and A$3.04 billion. The Department of Defence believes that the desired capabilities will be defined by 2011, a contract awarded by 2015, and the first submarine ready for sea trials by 2022, with the Collins class phasing out from 2025 onwards. Construction is predicted to occur over a 25 year period, with the new submarines operating until the 2070s. To avoid some of the problems of the Collins class acquisition, the replacement project will be designed as well as built in Australia.
- ^ a b c Yule & Woolner, The Collins Class Submarine Story, p. 26
- ^ Yule & Woolner, The Collins Class Submarine Story, pp. 37–43
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- ^ a b Woolner, Procuring Change, p. 3
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- ^ a b Woolner, Procuring Change, p. 4
- ^ a b c d Yule & Woolner, The Collins Class Submarine Story, p. 59
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- ^ a b c d e f g Grazebrook, Collins class comes up Down Under
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- ^ Jones, in The Royal Australian Navy, pp. 243–4
- ^ Yule & Woolner, The Collins Class Submarine Story, p. 100
- ^ a b c d e Yule & Woolner, The Collins Class Submarine Story, pp. 102–6
- ^ a b c Yule & Woolner, The Collins Class Submarine Story, pgs. 99, 107–8
- ^ Yule & Woolner, The Collins Class Submarine Story, p. 180
- ^ a b Woolner, Procuring Change, p. 13
- ^ Jones, in The Royal Australian Navy, p. 245
- ^ a b c Yule & Woolner, The Collins Class Submarine Story, p. 127
- ^ a b Yule & Woolner, The Collins Class Submarine Story, pgs. 87–8, 128
- ^ a b c Yule & Woolner, The Collins Class Submarine Story, p. 147
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- ^ a b Grazebrook, Australia's Navy at the Southern Crossroads
- ^ Woolner, Getting in Early, p. 16
- ^ Yule & Woolner, The Collins Class Submarine Story, pp. 187–8
- ^ a b c ‘Built in Australia’ Collins rolls out, Jane's Defence Weekly
- ^ Yule & Woolner, The Collins Class Submarine Story, pgs. 188–9, 193
- ^ Yule & Woolner, The Collins Class Submarine Story, p. 193
- ^ a b Yule & Woolner, The Collins Class Submarine Story, p. 188
- ^ a b c Lok, Australia rethinks AIP for Collins class boats
- ^ a b c d e f g Wertheim (ed.), Combat Fleets of the World, p. 19
- ^ Yule & Woolner, The Collins Class Submarine Story, p. 215
- ^ a b Yule & Woolner, The Collins Class Submarine Story, p. 348
- ^ a b c d e f g h i SSK Collins Class (Type 471) Attack Submarine, naval-technology.com
- ^ Jones, in The Royal Australian Navy, pp. 276–7
- ^ a b Yule & Woolner, The Collins Class Submarine Story, pp. 274–81
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- ^ a b c d Yule & Woolner, The Collins Class Submarine Story, pp. 281–2
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- ^ a b c Yule & Woolner, The Collins Class Submarine Story, pp. 288–9
- ^ a b c d Collins Class, Royal Australian Navy
- ^ a b c d e f g h i j k l m n o p Wertheirm (ed.), Combat Fleets of the World, p. 18
- ^ Yule & Woolner, The Collins Class Submarine Story, pgs. 317, 340
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- ^ Yule & Woolner, The Collins Class Submarine Story, p. 221
- ^ Kelton, More than an ally?, pp. 103–4
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- ^ a b Yule & Woolner, The Collins Class Submarine Story, pp. 222–4
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- ^ a b Yule & Woolner, The Collins Class Submarine Story, pgs. 230–1, 238–9
- ^ Yule & Woolner, The Collins Class Submarine Story, pp. 230–1
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- ^ Yule & Woolner, The Collins Class Submarine Story, pp. 239–40
- ^ a b Oakes, This time it's the generators
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- ^ a b Yule & Woolner, The Collins Class Submarine Story, pp. 153–4
- ^ a b Yule & Woolner, The Collins Class Submarine Story, p. 98
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- ^ Yule & Woolner, The Collins Class Submarine Story, pgs. 212, 244–5
- ^ Yule & Woolner, The Collins Class Submarine Story, p. 245
- ^ Rockwell signs 'Kilo' system deal, Jane's Defence Weekly
- ^ Yule & Woolner, The Collins Class Submarine Story, pp. 245–8
- ^ a b Yule & Woolner, The Collins Class Submarine Story, pp. 250–1
- ^ a b Yule & Woolner, The Collins Class Submarine Story, p. 260
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- ^ Woolner, Getting in Early, p. 28
- ^ Yule & Woolner, The Collins Class Submarine Story, p. 294
- ^ a b c Yule & Woolner, The Collins Class Submarine Story, pp. 300–1
- ^ Kelton, More than an ally?, p. 117
- ^ Woolner, Getting in Early, p. iii
- ^ Yule & Woolner, The Collins Class Submarine Story, pp. 301–7
- ^ a b Yule & Woolner, The Collins Class Submarine Story, pp. 307–8
- ^ Mack, The U.S. Navy and Royal Australian Navy Relationship. A Partnership to Educate
- ^ Elliott, Replacement Combat System for the Collins Class Soon to be Operational!, pp. 44–8
- ^ Yule & Woolner, The Collins Class Submarine Story, p. 309
- ^ a b Yule & Woolner, The Collins Class Submarine Story, p. 324
- ^ Yule & Woolner, The Collins Class Submarine Story, p. 187
- ^ Yule & Woolner, The Collins Class Submarine Story, pgs. 325, 348
- ^ Yule & Woolner, The Collins Class Submarine Story, p. 325
- ^ Australia's Collins Class Subs, Defense Industry Daily
- ^ a b Grazebrook, RAN prepares for Collins class
- ^ Woolner, Getting in Early, p. 21
- ^ a b c d Australian Associated Press, Navy forced to reduce subs' diving depth
- ^ Yule & Woolner, The Collins Class Submarine Story, pp. 165–74
- ^ a b Yule & Woolner, The Collins Class Submarine Story, p. 177–80
- ^ Heavyweight Torpedo - Mark 48, United States Navy Fact File
- ^ McPhedran, Torpedoed - Collins Class submarine sinks US ship
- ^ Haney, WashingtonWatch
- ^ a b c d e Future Force, Australian Warship, p. 24
- ^ a b Fowler, Are leaky Collins class subs all washed up?
- ^ a b c Muir, Pacific 2008: RAN submarines: present and future capabilities
- ^ Gordon, Pimp my ride. The return of Big 'D', p. 15
- ^ Woolner, Getting in Early, p. 20
- ^ Yule & Woolner, The Collins Class Submarine Story, pp. 224–5
- ^ Yule & Woolner, The Collins Class Submarine Story, p. 133
- ^ Davidson & Allibone, Beneath Southern Seas, p. 150
- ^ Skinner, NCSM: The Collins class submarine, p. 30
- ^ Yule & Woolner, The Collins Class Submarine Story, p. 155
- ^ Davidson & Allibone, Beneath Southern Seas, pgs. 117, 141
- ^ a b c Oakes, Sea change: mixed bunks on subs
- ^ Jones, in The Royal Australian Navy, p. 283
- ^ Brower, The Enemy [Below]... The Brass Above, p. 33
- ^ Women in the military - international, CBS News
- ^ a b Jones, in The Royal Australian Navy, p. 284
- ^ a b Yule & Woolner, The Collins Class Submarine Story, p. 291
- ^ a b c d e f Blenkin, Navy unveils plan to boost submariner numbers
- ^ a b Pearlman, Subs at risk of catastrophic accident
- ^ a b c McPhedran, Australia's submarine fleet sinking, says RAN chief
- ^ Oakes, Navy fears being left high and dry by resources boom
- ^ a b c d Davidson & Allibone, Beneath Southern Seas, p. 177
- ^ Woolner, Getting in Early, p. ii
- ^ a b Yule & Woolner, The Collins Class Submarine Story, p. 327
- ^ a b Coleman, More problems with Collins class submarines
- ^ a b Walters, Engine problems cripple Collins-class submarines
- ^ Jones, in The Royal Australian Navy, p. 250
- ^ Kelton, More than an ally?, p. 111
- ^ a b Woolner, Getting in Early, pp. 1–2
- ^ McDonald, Into Dili's darkness
- ^ a b Thompson, Lessons not learned, pp. 26–8
- ^ a b Yule & Woolner, The Collins Class Submarine Story, pp. 295–6
- ^ a b Woolner, Getting in Early, p. 22
- ^ a b c d Thompson, Lessons not learned, p. 28
- ^ Field, Prawns, roo end RIMPAC 2002 at Pearl Harbor
- ^ a b Nicholson, Collins sub shines in US war game
- ^ Thompson, Lessons not learned, p. 26
- ^ Sherman, Aussie Collins-Class Sub "Sinks" US boat
- ^ Davidson & Allibone, Beneath Southern Seas, p. 204
- ^ Jeffrey, Presentation of the 2007 Gloucester Cup to HMAS Rankin, [speech]
- ^ McPhedran, Only one submarine left to defend Australia
- ^ a b c Oakes, Two subs out of action for 9 years
- ^ Stewart, Not a single submarine seaworthy
- ^ a b c d Stewart, Defence to reach new depths
- ^ a b Nicholson, Sub fleet carries $36b price tag: experts
- ^ Nicholson, New subs to be buit in Adelaide whatever the pick
- ^ Yule & Woolner, The Collins Class Submarine Story, p. 329
- Davidson, Jon; Allibone, Tom (2005). Beneath Southern Seas. Crawley, WA: University of Western Australia Press. ISBN 1920694625. OCLC 69242056.
- Jones, Peter (2001). "A Period of Change and Uncertainty". In Stevens, David. The Royal Australian Navy. The Australian Centenary History of Defence. III. South Melbourne, VIC: Oxford University Press. ISBN 0195555422. OCLC 50418095.
- Kelton, Maryanne (2008). More than an ally?: contemporary Australia-US relations. Aldershot, Hampshire: Ashgate. ISBN 0754673677. OCLC 181424108. http://books.google.com/?id=Sdw9aVeNdwkC.
- Thompson, Roger (2007). Lessons not learned: the U.S. Navy's status quo culture. Annapolis, MD: Naval Institute Press. ISBN 9781591148654. OCLC 76901958. http://books.google.com/?id=Tqj9ZP8FsJEC.
- Wertheim, Eric, ed (2007). The Naval Institute Guide to Combat Fleets of the World: Their Ships, Aircraft, and Systems (15th ed.). Annapolis, MD: Naval Institute Press. ISBN 9781591149552. OCLC 140283156. http://books.google.com/?id=TJunjRvplU4C.
- Yule, Peter; Woolner, Derek (2008). The Collins Class Submarine Story: Steel, Spies and Spin. Port Melbourne, VIC: Cambridge University Press. ISBN 9780521868945. OCLC 213111359. http://books.google.com/?id=qZ-WlswoHFwC.
- Journal articles
- "Future Force: Australia's 21st century navy". Australian Warship (50): 24–31.
- Brower, J. Michael. "The Enemy [Below]... The Brass Above". U.S. Naval Institute Proceedings (United States Naval Institute) 126 (6): 33. ISSN 0041798X.
- "Australia's Collins Class Subs, Submariners On Track for Upgrades". Defense Industry Daily. 15 November 2008. http://www.defenseindustrydaily.com/australias-collins-class-subs-submariners-on-track-for-upgrades-01488/. Retrieved 15 April 2009.
- Elliott, Rob (March 2006). "Replacement Combat System for the Collins Class Soon to be Operational!". Navy Engineering Bulletin (10): 44–48. ISSN 0642295654. http://www.navy.gov.au/w/images/Navy_Engineering_Bulletin_March_2006.pdf. Retrieved 23 May 2009.
- Grazebrook, A.W. (1 December 1995). "RAN prepares for Collins class". Jane's Navy International (Jane's Information Group) 100 (6).
- Grazebrook, A.W. (1 April 1996). "Australia's Navy at the Southern Crossroads". Jane's Navy International (Jane's Information Group) 101 (3).
- Grazebrook, A.W. (1 January 1998). "Collins class comes up Down Under". Jane's Navy International (Jane's Information Group) 103 (1).
- Gordon, Lindsay (2009). "Pimp my ride. The return of Big 'D'". The Trade (Royal Australian Navy) (July 2009). http://www.navy.gov.au/w/images/The_Trade_Ed1_2009.pdf.
- Haney, Cecil (2008). "WashingtonWatch". Undersea Warfare (38). http://www.navy.mil/navydata/cno/n87/usw/usw_summer_08/washington.html. Retrieved 18 May 2009.
- "'Built in Australia' Collins rolls out". Jane's Defence Weekly (Jane's Information Group) 20 (6). 7 August 1993.
- "Rockwell signs 'Kilo' system deal". Jane's Defence Weekly 21 (14). 9 April 1994.
- Lok, Joris Janssen (17 July 1996). "Australia rethinks AIP for Collins class boats". Jane's Defence Weekly (Jane's Information Group) 026 (3).
- Mack, Stephen (2007). "The U.S. Navy and Royal Australian Navy Relationship. A Partnership to Educate". Undersea Warfare (Washington, DC: Chief of Naval Operations Submarine Warfare Division) 9 (4). http://www.navy.mil/navydata/cno/n87/usw/summer_07/summer_07/royal.html.
- Muir, Tom (2007). "Pacific 2008: RAN submarines: present and future capabilities". Australian Defence Magazine (Dec 07/Jan 08). http://www.australiandefence.com.au/F9074B80-F806-11DD-8DFE0050568C22C9.
- Sherman, Kenneth B. (December 2003). "Aussie Collins-Class Sub "Sinks" US Boat". The Journal of Electronic Defence 26 (12): 24. ISSN 0192429X.
- Skinner, Christopher (September 2008). "NCSM: The Collins class submarine: national benefits and costs". Journal of the Australian Naval Institute (129): 28–34. ISSN 1833-6531.
- Woolner, Derek (18 September 2001). "Getting in Early: Lessons of the Collins Submarine Program for Improved Oversight of Defence Procurement". Research Paper (Canberra: Department of the Parliamentary Library) 2001–02 (3). ISSN 1328-7478. http://www.aph.gov.au/library/pubs/rp/2001-02/02RP04.pdf. Retrieved 26 May 2009.
- Woolner, Derek (18 September 2001). "Procuring Change: How Kockums was Selected for the Collins Class Submarine". Research Paper (Canberra: Department of the Parliamentary Library) 2001–02 (4). ISSN 1328-7478. http://www.aph.gov.au/library/pubs/rp/2001-02/02RP04.pdf. Retrieved 24 April 2009.
- Newspaper articles
- Australian Associated Press (23 July 2005). "Navy forced to reduce subs' diving depth". The Age. http://www.theage.com.au/news/National/Navy-forced-to-reduce-subs-diving-depth/2005/07/23/1121539174654.html. Retrieved 19 April 2009.
- Blenkin, Max (8 April 2009). "Navy unveils plan to boost submariner numbers". AAP General News Wire (Australian Associated Press).
- Coleman, Matt (10 May 2000). "More problems with Collins class submarines" (Transcript). PM (ABC Radio). http://www.abc.net.au/pm/stories/s125474.htm. Retrieved 19 August 2009.
- Field, Nick (12 September 2002). "Prawns, roo end RIMPAC 2002 at Pearl Harbor". Navy News (Directorate of Defence Newspapers). http://www.defence.gov.au/news/navynews/editions/4518/topstories/story15.htm. Retrieved 21 April 2009.
- Fowler, Andrew (25 February 2003). "Are leaky Collins class subs all washed up?". The 7:30 Report (Australian Broadcasting Corporation). http://www.abc.net.au/7.30/content/2003/s792830.htm. Retrieved 2 September 2009.
- McDonald, Hamish (18 September 1999). "Into Dili's darkness". The Age. http://150.theage.com.au/view_bestofarticle.asp?intid=1739&inttype=1&straction=update. Retrieved 30 August 2009.
- McPhedran, Ian (25 July 2008). "Torpedoed - Collins Class submarine sinks US ship". The Advertiser. http://www.news.com.au/adelaidenow/story/0,22606,24073417-5006301,00.html. Retrieved 18 May 2009. [dead link]
- McPhedran, Ian (9 April 2009). "Australia's submarine fleet sinking, says RAN chief". Daily Telegraph. http://www.news.com.au/couriermail/story/0,23739,25311438-5001021,00.html. Retrieved 15 September 2009.
- McPhedran, Ian (21 May 2009). "Only one submarine left to defend Australia". The Advertiser. http://www.news.com.au/story/0,27574,25515669-421,00.html. Retrieved 28 May 2009.
- Nicholson, Brendan (28 January 2010). "New subs to be built in Adelaide whatever the pick". The Australian. http://www.theaustralian.com.au/news/new-subs-to-be-built-in-adelaide-whatever-the-pick/story-e6frg8yo-1225824141618. Retrieved 29 January 2010.
- Nicholson, Brendan (13 October 2002). "Collins sub shines in US war game". The Age. http://www.theage.com.au/articles/2002/10/12/1034222635806.html. Retrieved 20 April 2009.
- Nicholson, Brendan (30 October 2009). "Sub fleet carries $36b price tag: experts". The Sydney Morning Herald. http://www.smh.com.au/national/sub-fleet-carries-36b-price-tag-experts-20091029-hnqj.html. Retrieved 30 October 2009.
- Oakes, Dan (16 June 2011). "Sea change: mixed bunks on subs". The Sydney Morning Herald. http://www.smh.com.au/national/sea-change-mixed-bunks-on-subs-20110615-1g40o.html. Retrieved 16 June 2011.
- Oakes, Dan (11 February 2010). "Two subs out of action for 9 years". The Age. http://www.theage.com.au/national/two-subs-out-of-action-for-9-years-20100210-nsgh.html. Retrieved 12 February 2010.
- Oakes, Dan (31 March 2010). "This time it's the generators: Defence reveals latest battle with navy's underwater lemons". The Sydney Morning Herald. http://www.smh.com.au/national/this-time-its-the-generators-defence-reveals-latest-battle-with-navys-underwater-lemons-20100330-rbla.html. Retrieved 17 August 2010.
- Oakes, Dan (11 May 2010). "Navy fears being left high and dry by resources boom". The Australian. http://www.theaustralian.com.au/news/nation/navy-fears-being-left-high-and-dry-by-resources-boom/story-e6frg6nf-1225864746895. Retrieved 17 August 2010.
- Pearlman, Jonathan (9 April 2009). "Subs at risk of catastrophic accident". Sydney Morning Herald. http://www.smh.com.au/national/subs-at-risk-of-catastrophic-accident-20090408-a0vt.html. Retrieved 15 September 2009.
- Stewart, Cameron (29 December 2007). "Defence to reach new depths". The Australian. http://www.theaustralian.news.com.au/story/0,25197,22981343-31477,00.html. Retrieved 25 April 2009.
- Stewart, Cameron (10 June 2011). "Not a single submarine seaworthy". The Australian. http://www.theaustralian.com.au/national-affairs/not-a-single-submarine-seaworthy/story-fn59niix-1226072631716. Retrieved 11 June 2011.
- Walters, Patrick (21 October 2009). "Engine problems cripple Collins-class submarines". The Australian. http://www.theaustralian.news.com.au/story/0,25197,26239359-601,00.html. Retrieved 23 October 2009.
- Websites and other media
- "Collins Class". Royal Australian Navy. http://www.navy.gov.au/Collins_Class. Retrieved 20 April 2009.
- "Heavyweight Torpedo - Mark 48". United States Navy Fact File. United States Navy. 17 January 2009. http://www.navy.mil/navydata/fact_display.asp?cid=2100&tid=950&ct=2. Retrieved 22 April 2009.
- Jeffery, Michael (8 April 2008). Presentation of the 2007 Gloucester Cup to HMAS Rankin (Speech). HMAS Stirling, WA. http://www.gg.gov.au/governorgeneral/speech.php?id=407. Retrieved 26 May 2009.
- "SSK Collins Class (Type 471) Attack Submarine". Industry Projects, naval-technology.com. SPG Media. http://www.naval-technology.com/projects/collins/. Retrieved 20 April 2009.
- "Women in the military - international". Indepth. CBS News. 30 May 2006. http://www.cbc.ca/news/background/military-international/. Retrieved 19 April 2009.
- Virtual Fleet - Virtual tour of RAN warships, including the Collins class submarine.
- Submarine Names - RAN webpage providing histories of the six personnel the submarines are named after.
- Reviews and reports
- Report to the Minister for Defence on the Collins class submarine and related matters - the 1999 report by McIntosh and Prescott on the state of the Collins class project.
- A brief on the issues arising from consideration of the requirements for a future submarine capability for Australia - the 2007 report by the Submarine Institute of Australia which prompted the commencement of the Collins class replacement project.
- Submarine Workforce Sustainability Review - declassified text of the 2008 review by Moffitt on providing ship's complements for the Collins class submarines.
Collins class replacement
Collins class Oberon class Odin class J class E class Other submarines Bases and tenders
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