This paper model is a very detailed Gotengo (also known in the West as Atragon), a fictional submarine battleship that has appeared in several tokusatsu films, beginning with Atragon in 1963, the papercraft is created by UHU02.
The Gotengo is a flying multipurpose warship that first appeared in the 1963 film Atragon, and later appeared in two other films, Godzilla: Final Wars and Super Fleet Sazer-X the Movie: Fight! Star Soldiers. A similar ship called the Gohten also appeared in the film The War in Space.
You can download this papercraft model template here [Note: open for public download for only Limited Time!!!]: Atragon - Very Detailed Gotengo Submarine Battleship Free Paper Model Download