Murray--I agree with Rich that the details of your experience with the M-15 knock-down would be of interest to all of us. Whatever details you can provide about the events leading up to it could help us to avoid losing all the stuff in our cockpit lockers as well. One other question: did you notice-- did the centerboard swing back up into the slot when she went over? It seems likely given your description of her position in the water, and if so, then it is very possible that this contributed to the lack of self-righting, and it would behoove M15 owners to seriously consider some kind of down-position locking mechanism for the centerboard. Also, what kind of positive floatation does she carry. This was a big discussion in this group last winter. I personally have NO added floatation in my M15, but I know a lot of people do, and I am definitely planning to add some sooner or later. (Maybe a lot sooner, now that I've heard your story.) Thanks for sharing! -- Steve McClellan~~M15~#152~~Chicago