This paper model is an Air Tram, a Federation passenger transport that was in service with Starfleet in the late 23rd century, based on The Motion Picture of the Star Trek sci-fi film series, the paper model is created by MTK.
Air Trams were used for transporting Starfleet personnel between air tram stations. The air tram was compartmentalized into a passenger cabin and a cockpit.
Admiral James T. Kirk was transported to Starfleet Headquarters in San Francisco aboard air tram 3 in the 2270s. Upon landing, the admiral met with Commander Sonak and proceeded to a meeting with Admiral Nogura. Air trams were still in use in San Francisco in an alternate 2372. [Source: wikia]
You can download this paper model template here: Star Trek: The Motion Picture - Simple Air Tram Free Paper Model Download and Air Tram II