Free boat & ship plans boats, ships & anything that floats. this section is dedicated to free boat plans. each plan is available as a zipped file and will either. Model boat plans for immediate download cad generated and lofted and/or large-scale scanned and electronically cleaned up. 30 day, 100% satisfaction guarantee.. Pt boat plans for the famous pt 109 offered in 1:32, 1:24 and 1:16 scale – buy and download a relatively easy-to-build semi scale blueprint of an elco 80-footer..