Why Royal Navy carrier conversions kept their names

Would unfinished battleships converted into carriers have been renamed?

Usually not; Royal Navy conversions retained established fighting-ship names unless a separate institutional reason justified renaming.

Royal Navy renaming involved custom, committee approval, and the status of the proposed replacement name. Sailors also regarded renaming as unlucky, even though the service sometimes did it for depot or secondary roles. Courageous, Glorious, Furious, and Eagle illustrate that conversion to a carrier did not itself require a new name. The ships remained fighting units, so their established identities carried across the conversion.