We have lots of fishing boat plans on this category of the website, lets also add model shrimp boat plans and increase the choices. it is a simple russian shrimp. All parts are detailed including safety valves and boiler valves – the plans are a complete set guiding you to produce a vintage 2 1/2" gauge steam locomotive capable. A steamboat is a boat that is propelled primarily by steam power, typically driving propellers or paddlewheels. steamboats sometimes use the prefix designation ss, s.