"Other comments indicate Swift has made at least 66 knots on occasion, and the Wiki says:
"Swift returned to Incat at Hobart in July 2013 for refit for sale or charter."
The Wikipedia entry says she saw an apparent wind of 66 kts while retrieving a helicopter. As we all know, that doesn't equal speed through the water. If only it did, would make for some lively days in the slot.