Extreme 40

The Extreme 40 is a class of sailing catamaran created by TornadoSport and designed by Yves Loday. The boats are 40 feet long and are constructed out of carbon fibre. They have a top speed of about and can sail at about in 20–25 knots of wind The first extreme 40 was launched in 2005. They were sailed in the Extreme Sailing Series, formerly known as the iShares Cup. Extreme 40s are essentially a scaled-up version of the Tornado sailboat used in The Olympics. 
Extreme 40's are long, have a beam, displace of water, have a mast height of and a claimed top speed of . The mainsail is and the jib is . The gennaker used for downwind sailing is . 