Well no, Mary they're not. I believe that the Bravo has two distinct hulls joined by a moulded bridgedeck? Although the platform is one unit, there are two separate transoms?

With the two Laser designs, although there are two distinct and separate bows, the transoms are like a dinghy. They do have a sort of concave dip on the underside of the transom, but in essence they are two hulls (at the bow), becoming one (a tunnel scow shape) at the transom. Laser have always denied that these hulls are catamarans and even the RYA have now accepted that the Vortex is a monohull. <img src="http://www.catsailor.com/forums/images/graemlins/confused.gif" alt="" />