VESTAS Sailrocket 2 hits 74 MPH in 2012 By Lloyd Kahn on May 11, 2015 This was 3years ago. I think this record has been broken more recently.
On 24 November 2012, with wind speeds at roughly 25 knots (29 mph), it ran the 500m course at 65.45 knots (75.32 mph) with a 68.01 knots (78.26 mph) peak.Both records are ratified by the WSSRC for the 500m and the mile.