"USS Rio de Janeiro"@en . "USS Rio de Janeiro"@en . . "refitted to Mark Four: 2/1312, Mark Five:2/1906"@en . "The USS Rio de Janeiro (NCC-2757) was a Loknar-class Federation frigate starship in the 23rd century. (FASA RPG module: Federation Ship Recognition Manual). The Rio was latter upgraded to Mark four and Mark five specifications"@en . . . . "NCC-2757"@en . . "fed"@en . . "The USS Rio de Janeiro (NCC-2757) was a Loknar-class Federation frigate starship in the 23rd century. (FASA RPG module: Federation Ship Recognition Manual). The Rio was latter upgraded to Mark four and Mark five specifications"@en . . . . . .