http://www.gizmag.com/new-world-speed-sailing-record-6537kts-75mph-121kmh/25065/

http://www.theregister.co.uk/2012/11/23/sailrocket_claims_world_sail_speed_record/   (video inside).

Wowwwww !
To put it in perspective the fasssstestt I've  been is 10.2 knots downwind with  a reaching Gennaker in 15knots TWS but this is on  a stock  32 ft sailboat

109 km/h for a Sailboat is damn real fast.