Hello! i’m trying to build a boat following these plans. but it seems to have a problem with the caves 3 and 4. they do not follow the line of the boat.. Share this: 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. Welcome to my website – john’s fettling pages, free steam engine plans, rc aircraft and boat plans and rc flying, fishing and other events in thailand.