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. This boat is easy to build using our downloadable boat plans. our boat plans are available for instant download so you can start building right away.. Scroll down this page for many more plans. this a page of links to some favourite free boat plans at intheboatshed.net. they’ve been chosen because they are derived.