Have you ever wondered why ships are referred to as SS? Just what do those two little letters stand for and who came up with this moniker? Well, this video is going to solve that little mystery. And while we've got your attention, we'll also be uncovering the origins behind MV, RV, USS and HMS - and more! 00:00 INTRO 01:10 Ship Origins 02:00 Steam Ships 03:40 Prefix Definitions 04:49 War Ships 06:14 Merchant Ships 07:10 Royal Mail Ships 08:42 Prefixes Out Of Hand 09:47 Queen Mary II 10:18 Prefix Out Of Use 11:14 OUTRO Oceanliner Designs explores the design, construction, engineering and operation of history’s greatest vessels– from Titanic to Queen Mary and from the Empress of Ireland to the Lusitania. Join maritime researcher and illustrator Michael Brady as he tells the stories behind some of history's most famous ocean liners and machines! #ShipSecrets #MaritimeMysteries #SSExplained #ShipStories #SailingFacts #SSOrigins #ShipNaming #SeaLegends #SSRevealed #OceanOdyssey #ShipTerms #NavalKnowledge #SailorLore #SSUnveiled #NauticalNaming #ShipTraditions #VesselVocabulary #ShipSaga #ShipPrefixes #SS #MV #RV #USS #HMS