Viking boat scale model plans. here are two sets of viking long ship scale model boat plans. there were several kinds of boats similar to this in different sizes and. Model sailing ship and boat plans . a collection of free plans for model sail boats including yachts, gallions, brigantines and pirate ships. many of the plans can be. These free to download wooden boat plans (pdf) were first published in magazines such as "popular mechanics", "popular science" and the "boat builder’s handbook"..