Those that are following my blog on building the Dutch Auxiliary will know that I am working from a rather sketchy plan from 1952. When it comes to the amount of keel weight required the plan gives no indication as to what it should be. lbs/kg Perhaps someone could give me a sensible starting point for the hull which is 16 inches by 7 max beam (410x 189mm) All answers on a postcard or here on the site. Many thanks Geoff.