蟠竜丸 蟠竜艦 雷電丸 雷電艦
A bakumatsu-era, British-built schooner corvette of so-called the Bakufu Navy. She became an Imperial Japanese Navy ship in 1877.She had several other names: "Emperor", Banryuu, Banryuu-kan, Raiden, Raiden Maru and Raiden-kan.