Bananabender said..
www.news.com.au/national/queensland/search-for-man-missing-after-boat-sank-off-fraser-island-enters-third-day/news-story/0180768768cb1450cebf216c7a6772d1

Wow that's awful. How do you know it was a 30 footer. Have you got another source?.

Apparently the boat was a Clansman 30 named Seaforth, and the fellow missing is named Steve.

That doesn't look anything like a Clansman.

xkeelhauledx said..
Any new details on what happened and why the vessel was hull up?

I'm not sure the vessel was hull up as the video is not of sufficient quality and the girl said that she saw the yacht sink.

People on the Clansman Facebook site reckon they know the guy so apparently it really was a Clansman. As has been noted these have integral long keels and are therefore highly unlikely to lose a keel and invert. If full of water they would just sink right side up as the girl said.