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.. … boat model builder. free plans to build rc power boats with information on racing . rc power boats and radio control boat plans for free pt boat. plans for. Elco 80′ pt boat specifications depth measurements are from the plans horizontal base line which is slightly below the lowest part of the planked hull..