Once dubbed SLT or Superlight Tunnel, inflatable catamarans now have a more recognizable name under the American Power Boat Association. Joining with the rest of the world, the APBA calls a twin hull RIB a thundercat.
At the link above, they have a breakdown of the different classes within ThunderCat for the different motors allowed. Bandit, Outlaw, Experimental (slowest to fastest) allowing tiller outboard motors from 44 to 62 cubic inches.
New To ThunderCat Racing – Has good information on startup costs and other helpful links.
Currently, there are only APBA ThunderCat events north of the Mason-Dixon line but Cracker Bay Thundercats intends to bring the sport to the southern spotlight in the immediate future.
