Quote:
Originally Posted by ApS
Having owned three speedy catamarans concurrently, I found myself too busy with navigating to be overly concerned with the windward board; even with a crewmember, he'd be "on the wire" and oftentimes, the partially-retracted board would be clear of the water anyway.
Par Four, two of my catamarans, but especially my Tornado—with smallish centerboards—was capable of 10-MPH higher speeds than the AC72s are restricted to in these races. 
But, according to July's SAIL magazine—dropped off by a bluewater-racer-friend—the real reason the AC72 windward boards are retracted is by safety regulation.
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I don't think the speed of these race boats is "restricted"! I never heard of limiting the "speed" of a race vehicle. The only limit I am aware of is wind speed when the race will be stopped for safety reasons. The wind on The Bay can easily get close to 30 mph and more.
Your boat could go over 60 mph?