{"id":23951,"date":"2026-06-03T08:59:14","date_gmt":"2026-06-03T08:59:14","guid":{"rendered":"https:\/\/www.europesays.com\/australia\/23951\/"},"modified":"2026-06-03T08:59:14","modified_gmt":"2026-06-03T08:59:14","slug":"can-one-optimal-pathway-have-two-lanes-when-it-comes-to-aukus-submarines-apparently-yes","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/australia\/23951\/","title":{"rendered":"Can one optimal pathway have two lanes? When it comes to AUKUS submarines, apparently yes"},"content":{"rendered":"<p class=\"paragraph_paragraph___QITb\">For an arm of the government tasked with a fairly straightforward mission \u2014 that is, fighting \u2014 Defence is famous for wrapping itself in impenetrable language.<\/p>\n<p class=\"paragraph_paragraph___QITb\">Ships and planes are &#8220;platforms&#8221;, weapons are &#8220;capabilities&#8221;, soldiers are &#8220;personnel&#8221; and Australia&#8217;s road to running a fleet of nuclear-powered submarines is a &#8220;constrained optimal pathway&#8221;.<\/p>\n<p class=\"paragraph_paragraph___QITb\">That optimal pathway has come in for plenty of scrutiny in the past few days.<\/p>\n<p><a href=\"https:\/\/www.abc.net.au\/news\/2026-06-02\/difference-between-new-used-virginia-class-submarines-aukus\/106743900\" data-component=\"FullBleedLink\" class=\"RelatedCard_link__rsgR9 FullBleedLink_root__lTw_U interactive_focusContext__yRhc_ interactive_defaults__AKxUU FullBleedLink_showVisited__g3Xvz\" rel=\"nofollow noopener\" target=\"_blank\">The difference between new and used submarines<\/a><\/p>\n<p class=\"Typography_base__sj2RP RelatedCard_synopsis__cFwMW Typography_sizeMobile14__u7TGe Typography_lineHeightMobile20___U7Vr Typography_regular__WeIG6 Typography_colourInherit__dfnUx\" data-component=\"Typography\">Australia will only buy second-hand Virginia nuclear-powered submarines from the US during the AUKUS stopgap phase, with some analysts criticising the move and others believing it is a positive change of plan. \u00a0<\/p>\n<p class=\"paragraph_paragraph___QITb\">The plan, as of last week, was for Australia to buy two &#8220;in-service&#8221;, that is, second-hand, submarines in 2032 and 2035, and a third brand-new submarine in 2038.<\/p>\n<p class=\"paragraph_paragraph___QITb\">As of this week the plan is for Australia to buy three used submarines which the government is now arguing has been its preferred option all along.<\/p>\n<p class=\"paragraph_paragraph___QITb\">Defence officials fronting up to estimates hearings this week have been copping questions on the surprise shift.<\/p>\n<p class=\"paragraph_paragraph___QITb\">Was the optimal pathway of last week actually not &#8220;optimal&#8221;? And if so, why was it called the &#8220;optimal pathway&#8221;?<\/p>\n<p class=\"paragraph_paragraph___QITb\">&#8220;You can absolutely have two constrained optimal pathways,&#8221; new Defence Secretary Meghan Quinn told Greens Senator David Shoebridge.<\/p>\n<p class=\"paragraph_paragraph___QITb\">The exchange led Senator Shoebridge to accuse AUKUS of &#8220;not only damaging the public purse, but destroying the English language&#8221;.<\/p>\n<p class=\"paragraph_paragraph___QITb\">Any economist will tell you constrained optimisation is taught in first year uni. It&#8217;s basically finding the best option with the cards you&#8217;ve been dealt.<\/p>\n<p class=\"paragraph_paragraph___QITb\">But the exchange highlights the trouble the government is having explaining the changes it&#8217;s made and the risk to public confidence in Australia&#8217;s biggest ever defence project.<\/p>\n<p><img decoding=\"async\" alt=\"David Shoebridge\" class=\"Image_image__5tFYM ContentImage_image__DQ_cq\"  src=\"https:\/\/www.europesays.com\/australia\/wp-content\/uploads\/2026\/06\/7f76a65f239addcc029948cbb2ed8226.jpeg\" loading=\"lazy\" data-component=\"Image\" data-lazy=\"true\"\/><\/p>\n<p class=\"Typography_base__sj2RP FigureCaption_text__zDxQ5 Typography_sizeMobile12__w_FPC Typography_lineHeightMobile20___U7Vr Typography_regular__WeIG6 Typography_colourInherit__dfnUx\" data-component=\"Typography\">Senator David Shoebridge has accused AUKUS of &#8220;damaging the public purse&#8221;. (ABC News: Matt Roberts)<\/p>\n<p>Substituting subs<\/p>\n<p class=\"paragraph_paragraph___QITb\">Back when the &#8220;optimal pathway&#8221; was first announced in 2023, questions about the complexity of the plans were already being asked.<\/p>\n<p class=\"paragraph_paragraph___QITb\">As Richard Marles and others have pointed out over the past few days, that plan would have left Australia operating four types of submarines.<\/p>\n<p class=\"paragraph_paragraph___QITb\">Australia is spending billions stretching out the life of its aging fleet of Collins Class submarines, so the last will still be in the water deep into the 2040s.<\/p>\n<p class=\"paragraph_paragraph___QITb\">There are the used Virginia class submarines, which are being built in the US this decade and will be delivered in 2032 and 2035.<\/p>\n<p><img decoding=\"async\" alt=\"A grey-haired man in a black suit and navy tie with white spots, speaks inside the House of Representatives.\" class=\"Image_image__5tFYM ContentImage_image__DQ_cq\"  src=\"https:\/\/www.europesays.com\/australia\/wp-content\/uploads\/2026\/06\/0869dc6e22686eeba998844ba793a7d3.jpeg\" loading=\"lazy\" data-component=\"Image\" data-lazy=\"true\"\/><\/p>\n<p class=\"Typography_base__sj2RP FigureCaption_text__zDxQ5 Typography_sizeMobile12__w_FPC Typography_lineHeightMobile20___U7Vr Typography_regular__WeIG6 Typography_colourInherit__dfnUx\" data-component=\"Typography\">Richard Marles says the new deal reduces the types of submarines Australia will have to operate simultaneously. (ABC News: Adam Kennedy\u00a0)<\/p>\n<p class=\"paragraph_paragraph___QITb\">The new Virginia class submarine would have arrived in 2038, and while details of exactly what it would have looked like aren&#8217;t known, it would likely have had some significant differences to its 2020s counterparts.<\/p>\n<p class=\"paragraph_paragraph___QITb\">And the first Australian-made AUKUS submarine would have hit the water in Australia by 2042.<\/p>\n<p class=\"paragraph_paragraph___QITb\">Marles has since argued Australia always held concerns about that plan and our preference from the outset was to acquire three in-service Virginia class subs to try and simplify things.<\/p>\n<p><a href=\"https:\/\/www.abc.net.au\/news\/2026-05-23\/why-theres-more-talk-of-an-aukus-plan-b\/106705426\" data-component=\"FullBleedLink\" class=\"RelatedCard_link__rsgR9 FullBleedLink_root__lTw_U interactive_focusContext__yRhc_ interactive_defaults__AKxUU FullBleedLink_showVisited__g3Xvz\" rel=\"nofollow noopener\" target=\"_blank\">The &#8216;plan B&#8217; for AUKUS<\/a><\/p>\n<p class=\"Typography_base__sj2RP RelatedCard_synopsis__cFwMW Typography_sizeMobile14__u7TGe Typography_lineHeightMobile20___U7Vr Typography_regular__WeIG6 Typography_colourInherit__dfnUx\" data-component=\"Typography\">Defence industry experts argue Australia should consider how to prevent a naval &#8220;capability gap&#8221; \u2014 or risk being left exposed.<\/p>\n<p class=\"paragraph_paragraph___QITb\">It was the United States that was insisting Australia take a brand new submarine rather than taking three in-service submarines.<\/p>\n<p class=\"paragraph_paragraph___QITb\">Essentially, the US was placing a greater value on its older submarines than its newer submarines and wasn&#8217;t comfortable giving us three in-service submarines, until now.<\/p>\n<p class=\"paragraph_paragraph___QITb\">Defence Industry Minister Pat Conroy addressed the shift on Radio National Breakfast.<\/p>\n<p class=\"paragraph_paragraph___QITb\">&#8220;Submarine availability [and] maintenance has improved in the US system, which means that the US Navy feels comfortable releasing a third in-service submarine,&#8221; he said.<\/p>\n<p>&#8220;That means it&#8217;ll be cheaper and simpler for us to run.&#8221;<\/p>\n<p class=\"paragraph_paragraph___QITb\">There&#8217;s quiet acknowledgement within the government that the argument sounds counter-intuitive, and the communication has not been great.<\/p>\n<p class=\"paragraph_paragraph___QITb\">It has found itself arguing that ten-year-old submarines are more valuable than newer, more advanced submarines.<\/p>\n<p class=\"paragraph_paragraph___QITb\">It says the Virginias Australia buys will arrive in the prime of their life, having been in the water for a few years to iron out any early problems, and with decades of life ahead.<\/p>\n<p class=\"paragraph_paragraph___QITb\">And it argues the US recognises that a submarine in the water is in many ways more valuable than a new submarine, which is why there was reluctance to offer three in-service submarines to begin with.<\/p>\n<p class=\"paragraph_paragraph___QITb\">For some Australians it might look like the government is arguing a ten-year-old Toyota Corolla (with a responsible owner, of course) is actually a better option than a brand new model straight off the lot.<\/p>\n<p>Settling the AUKUS caucus<\/p>\n<p class=\"paragraph_paragraph___QITb\">When AUKUS was first announced in 2021 by the Coalition, Australia&#8217;s first nuclear-powered submarine wasn&#8217;t expected for more than a decade and a half.<\/p>\n<p class=\"paragraph_paragraph___QITb\">The changes made in 2023 under the current government to acquire the Virginia class submarines means the first Australian-flagged nuclear-powered sub is now a little over five years away.<\/p>\n<p class=\"paragraph_paragraph___QITb\">It&#8217;s getting more real. It&#8217;s costing much more money, up to $96 billion between now and 2036, shipyards are being built, and sailors are being trained.<\/p>\n<p class=\"paragraph_paragraph___QITb\">AUKUS is also going to attract much more scrutiny.<\/p>\n<p><a href=\"https:\/\/www.abc.net.au\/news\/2026-05-30\/aukus-announcement-to-develop-undersea-vehicles\/106741398\" data-component=\"FullBleedLink\" class=\"RelatedCard_link__rsgR9 FullBleedLink_root__lTw_U interactive_focusContext__yRhc_ interactive_defaults__AKxUU FullBleedLink_showVisited__g3Xvz\" rel=\"nofollow noopener\" target=\"_blank\">AUKUS partners unveil plan to develop underwater drones<\/a><\/p>\n<p class=\"Typography_base__sj2RP RelatedCard_synopsis__cFwMW Typography_sizeMobile14__u7TGe Typography_lineHeightMobile20___U7Vr Typography_regular__WeIG6 Typography_colourInherit__dfnUx\" data-component=\"Typography\">The US, Australia and United Kingdom have unveiled a new &#8220;signature&#8221; project to develop cutting edge weapons systems and sensors for underwater drones.<\/p>\n<p class=\"paragraph_paragraph___QITb\">Labor MP Ed Husic&#8217;s <a class=\"Link_link__kR0xA Link_link__5eL5m ScreenReaderOnly_srLinkHint__OysWz Link_showVisited__C1Fea Link_showFocus__ALyv2\" href=\"https:\/\/www.abc.net.au\/news\/2026-06-02\/ed-husic-calls-for-aukus-deal-rethink-submarines\/106750234\" data-component=\"Link\" data-uri=\"coremedia:\/\/article\/106750234\" rel=\"nofollow noopener\" target=\"_blank\">intervention this week <\/a>when questioning if Labor should take the chance to reconsider AUKUS wasn&#8217;t totally shocking, given he&#8217;s recently been much more inclined to rock the boat.<\/p>\n<p class=\"paragraph_paragraph___QITb\">But the messaging was at least partly targeted at a very real group of Labor supporters with a lot of questions about the government tying itself ever closer to a more unpredictable US administration.<\/p>\n<p class=\"paragraph_paragraph___QITb\">Ministers often point out that AUKUS is the largest industrial project Australia has ever attempted, and the nuclear-powered submarines will be the most potent military asset Australia has ever acquired.<\/p>\n<p><img decoding=\"async\" alt=\"Man listening to another speaker, she is out of focus\" class=\"Image_image__5tFYM ContentImage_image__DQ_cq\"  src=\"https:\/\/www.europesays.com\/australia\/wp-content\/uploads\/2026\/06\/9cf4ac283a5fe34e10c2a280428c12a4.jpeg\" loading=\"lazy\" data-component=\"Image\" data-lazy=\"true\"\/><\/p>\n<p class=\"Typography_base__sj2RP FigureCaption_text__zDxQ5 Typography_sizeMobile12__w_FPC Typography_lineHeightMobile20___U7Vr Typography_regular__WeIG6 Typography_colourInherit__dfnUx\" data-component=\"Typography\">Labor MP Ed Husic has argued AUKUS needs to be renegotiated. (ABC News: Ian Cutmore)<\/p>\n<p class=\"paragraph_paragraph___QITb\">It&#8217;s not just challenging here. Billions of dollars, a lot of them Australian, are being poured into US shipyards to try and get them producing submarines faster.<\/p>\n<p class=\"paragraph_paragraph___QITb\">And the UK is grappling with its own shipbuilding challenges as it works to have its first AUKUS-class submarine in the water by the late 2030s.<\/p>\n<p class=\"paragraph_paragraph___QITb\">The overriding message this week has been that this change was about making things as simple as possible.<\/p>\n<p class=\"paragraph_paragraph___QITb\">If the government wants to keep Australians on side through a decades-long journey, that lesson applies to the messaging too.<\/p>\n","protected":false},"excerpt":{"rendered":"For an arm of the government tasked with a fairly straightforward mission \u2014 that is, fighting \u2014 Defence&hellip;\n","protected":false},"author":2,"featured_media":23952,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[22,1204,21,485,14797,22277],"class_list":["post-23951","post","type-post","status-publish","format-standard","has-post-thumbnail","category-australia","tag-au","tag-aukus","tag-austrlia","tag-richard-marles","tag-submarines","tag-virginia-submarines"],"_links":{"self":[{"href":"https:\/\/www.europesays.com\/australia\/wp-json\/wp\/v2\/posts\/23951","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/australia\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/australia\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/australia\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/australia\/wp-json\/wp\/v2\/comments?post=23951"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/australia\/wp-json\/wp\/v2\/posts\/23951\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/australia\/wp-json\/wp\/v2\/media\/23952"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/australia\/wp-json\/wp\/v2\/media?parent=23951"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/australia\/wp-json\/wp\/v2\/categories?post=23951"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/australia\/wp-json\/wp\/v2\/tags?post=23951"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}