I was sailing offshore from Great Sale Cay in the Bahamas to Beaufort, South Carolina. This is an offshore trip, running the center of Gulf Stream for much of the way. My vessel is a 2002 50-foot Catalina sloop with a Raymarine Linear Drive 2 and your current autopilot system. My crew (Kathryn Ellis) and I were some 80+ miles off the US coast. The forecast was a chance of thunderstorms during the afternoon, the same as the previous day.…