This #AUKUS timeline chart from John Blaxland (https://twitter.com/JohnBlaxland1/status/1635371316554637312?s=20) appears to imply that the used #Virginias #Australia will buy in the early 30s will be recent or even yet to be built Block IV or Block V boats. (2053 - 33 year service life = commissioned no earlier than 2020)

I had assumed that Australia would want to lease/buy even older subs purely as a bridge so that they could save money and quickly converge on a single class as soon as possible.

Virginias with service lives into the 2050s would help manage the risk of late delivery of AUKUS SSN.