The Vestas Sailrocket was built to capture the sailing speed record competing in the B-class for 150 to 235 square feet of sail. It is piloted by the project leader Paul Larsen and sponsored by Danish wind turbines manufacturer Vestas. In 2008 the first version reached a reported unofficial speed of 52.22 knots (96.71 km/h), before crashing.
After being upgraded to a second version, the Vestas Sailrocket 2 began a campaign to break speed records in November 2012 off Walvis Bay, Namibia. On the 12th of November, it made a 54.08 knots (100.16 km/h) run over a 500 metres (1,600 ft) distance, then 59.23 knots (109.69 km/h) on the 16th. It attained 55.32 knots (102.45 km/h) on a one-mile run on the 18th and simultaneously 59.38 knots (109.97 km/h) on 500m. On 24 November, with wind speeds at roughly 25 knots (46 km/h), it ran the 500m course at 65.45 knots (121.21 km/h) with a 68.01 knots (125.95 km/h) peak. Both records are ratified by the WSSRC for the 500m and the mile.