The highest speed I have known the Tornado to go was at CORK '75. A 40kn storm hit, when the the fleet got to the reaching leg. The peak of the storm must have hit, when the leaders got to the jibe mark. At this mark a couple boats broke their side stays, one of them was Reg White who released the other stays, so as not to damage the boat from the mast. Notary was there on "Salt Water Wine", Zutec on "Twister" & Smyth. Anyway a Canadian destroyer radared the fleet at 28kn average. That's 33mph average, at that speed the boat was NO longer in the water it went like a skipping stone from crest to crest 9'(3m). It was amazing the Tornado could skip the crest, and soar over the trough. It was sheer madness, with some poet license here, it seemed like we zoomed over 5 crests in ten seconds, and the wind would calm down to 2 or 3 crests in 10 seconds a la bucking bronco, and then accelerate again, & fly over the trough. I will never forget the thrill, not to mention wondering will the wind ever slow up. I recall a Tornado to windward of us, and counting it cartwheeling/rotating about it's mast 3 1/2 times, and the crew later righted the boat, unassisted? Anyway, I would call it somewhere between sailing/flying & oh ____. Great wind & waves, Chris