HMS Undaunted was a wooden screw frigate, the fifth ship of the name to serve in the Royal Navy. She was the last of the Bristol-class, (which included Bristol, Glasgow' and Newcastle, as well as Undaunted; other ships ordered to the same design were cancelled).She was built as a composite wooden-hulled vessel, built with a telescopic funnel and hoisting screws. She was ship rigged throughout, It is thought that the installation of a wrought iron mast in HMS Undaunted may have been experimental.