The crash may not have been heard by all the competitors as the two A-Class catamarans collided at the windward mark on the first day of racing, but by the time the boats hit the beach, every sailor in the fleet was ready to help repair the damage.It’s clear to even a casual observer that there’s something special about the people in the singlehanded A-Cat class. During a break in the action at the class’s North American Championship in Panama City, Florida, the St. Andrews Bay Yacht Club lawn was crowded with sailors helping patch up the boats damaged in the collision earlier in the day.