Sailing catamarans: boat plans & full size patterns. euro catamaran 1300 aluminum sailing catamaran boat plans euro catamaran 1500 aluminum sailing catamaran boat plans euro catamaran 1900. Coaster- coastworker 36 built in aluminum in finland from our plans and patterns. also in wood epoxy 28ft – 32ft – 36ft . the study plans video show this boat at speed – fantastic performer.. Sailing catamaran tiki 38′ rb power & sailing has been requested to build a tiki 38 based on the well known and appreciated design of james wharram..