500m is a long way to average 20+knts under the condiotions of whatever day they decide to run the trials on. I'd say wooter is not far from the truth. I have seen first hand a Nacra 5.5 w/spi steadily running at 26.??knts under GPS (more accurate than most would think). Years aggo I saw an article in a "Multihulls Mag" stating a SC20 hitting 33knts ?? One more ... The record for sailing around Texel is I think about 2 hours 9 minutes for what they say is a 60 mile trip. Oh and that was also a SC20. Not sure either what is realistic for top speed on a cat but I hope to find out next summer :-)

Marc ... yeah I guess another frenchie