Re: Was the Enterprise A actually the Yorktown?
I really do profoundly dislike the whole TOS "starship" vs "spaceship" nonsense. It seems like a lazy and puerile oversimplification of ship designations by the writers at the time, almost like they really didn't care about such things back then - and they probably didn't. The Merikus dialog in "Bread and Circuses" nicely muddied the waters even further, and it wasn't until the show was well underway that "Constitution" was starting to get used. Personally, I think the whole "star/spaceship" thing should be retconned out of existence along with other little gems like the "time warp barrier" and "Vulcanians" and never spoken of in polite company - ever again...
I may appear unoccupied to you, but at the molecular level, I'm really quite busy.