Moderator here. https://www.railpage.com.au/f-t1511.htm was the old thread, actually not reallt revelant to this post.  Welcome to railpage. fyi posts older than 8months are generally not desireable to post into hence  the "raising the dead" reference. Suggest you read the rules for posting in the help menu.  Also there have been heeps of fast train threads all over the forums, it may pay to read them as well - Dthead, Moderator.
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Hello all, I'm new to posting threads and I can't say that I'm very switched on to the world of computers so I'll be leaving myself open to ridicule from experenced users from this site but recently there was a news article about the possiabality of a 6 hour run from Sydney to Melbourne.
Whilst this won't complete with airport to airport travel times the potential for anyone travelling to either capital along this strech of corridor with these transit times are a vast improvement and attractive to passengers (Goulburn/Syd)

Mundrabilla thankfully posted the link to the paper which outlined the proposal that was linked to the news article as I'm a joke at using technology (apparently I should of posted this originaly on a established thread such as this)

https://www.atrf.info/papers/2002/2002_Laird_Mitchell_Adorni_Braccesi.pdf

Would this be possible or is it all academic?

Would you need tilting trains to achieve a 6-7hr SYD-MEL transit time with a realignment  or could the new NSW regional fleet be able to achieve a similar time if allowed to run at their supposed potential?

(Also if there's any XPT enginemen on here that could give a running time of what could be safely achieved on the current alignment without any bureaucratic interference)

Thank you all, regards