Veteran skipper Sean Langman has rocketed into a Sydney to Hobart passage race record.

The sailing stalwart completed the 630 nautical mile course on Saturday in a world speed sailing record of one day and six hours, ABC Television reports.

"At the moment I'm just a little bit shell-shocked," Langman told ABC Television upon arriving in Hobart around 5pm (AEDT).

"I've been wanting to do this since I turned about 15 or so, so yeah - a long time coming."

Langman, his son Peter, and his team, had set off from near Sydney Heads aboard Team Australia's 60-foot trimaran on Friday.

The crew sailed speeds up to 38 knots at one point, according to a satellite tracker of their journey posted online.

"We are pretty wet and tired. It feels like we are drowning," navigator Josh Alexander had told News Ltd on a sat phone during the race.

The completed time, if ratified, would beat Wild Oats XI's past record of one day, 18 hours, 23 minutes and 12 seconds, set during the 2012 Sydney to Hobart.