The hms_fca.rar file you have requested: Ship Textures / Federation / British Royalty Fca - 5.78mb is not available. Perhaps try browsing all files for the game Star Trek: Bridge Commander and upload any files you want to share or are missing. This is the only information we could locate:
This ship is for the British Royalty. Since they are tradtional or cerimonial leaders, it is reasonable to believe that said tradtion would still continue, even after the united would government we see in startrek was created. Thus, they would probably have their own ship as well. Complete with British flags and the HMS designation.