Scoobeb.....I have an old leaky, 14 foot V-Hulled Aluminum 1968 Duo with a heavy carpeted plywood floor, 45 lbs of gasoline, a trolling motor, a full-size battery, 50 lbs of ice and fishing gear, a 50 lb dog and a 200 lb me. I don't have a GPS but it feels like about 20 mph ['feels like' is...