Hi again. Just for clarification on my part, on the original speed thread there were individuals arguing that a beach cat can't go more than 22mph (or was it knots?), and that to me seemed quite low, so I'm interested in experimenting myself to see what I can average over a fixed distance on a good day. From some gps discussions, it would seem that at least some people would discount the gps accuracy for measuring speed out of hand, and maybe they're right (and I don't own a waterproof gps). My idea was to use the gps to measure the distance (using a powerboat, excuse my french), then use a stopwatch to measure the time. I don't expect that anyone would consider the results official, and I'm only really interested in accuracy to the extent that I'm able to tell the difference between 22mph and 30mph with a high degree of confidence. So that's my perspective, and it would be interesting to see others post results measured in a similar fashion. 500 meters would be a great distance to use, maybe I'll break down and set my own marks (when the ice melts). OR, set the marks BEFORE the ice melts, use my truck to measure the distance . . . naw, wouldn't work.
Al