Patent ID: 7137349

Claim:
A catamaran having horizontal left and right hulls connected in parallel, a main sail on a mast, a jib, and a rudder assembly, the improvement comprising, a main spar releasably horizontally connected centrally between the two hulls, the mast removably attached thereto at a mast proximal end, a stern spar releasably connected horizontally between the two hulls at the catamaran astern from the main spar, a platform between the main spar and the stern spar, and wherein the rudder assembly comprises a rudder hingedly attached removably to each hull stem with a tiller extending from each rudder toward the rear spar, adapted to move the rudder on a vertical axis in steering the catamaran, and a tiller arm interconnecting the tillers at their distal end such that lateral movement of the tiller arm causes the rudders to move on their vertical axes, a bow spar releasably connected horizontally between the two hulls at the catamaran forward from the main spar, wherein the mast includes a vertical slot opening at the mast proximal end and further comprising a cord in a closed loop attaching the mast proximal end to the main spar by wrapping a lead portion of the loop from a main spar mast side around the main spar and back to the main spar mast side passing through a tail portion of the loop and then through the mast slot, the lead portion of the loop being releasably fastened in the mast slot, securing it alongside the main spar.