OK, so they counted an Enterprise that was a test bed first of her class ship that never even made it to space, but not NX-01? talk about splitting hairs.
I don't understand your counterargument. Or is it that you don't understand my argument?
The universe is full of things named
Enterprise, most of them insignificant like the technology testbed you mention, some of them perhaps historically interesting. Our heroes acknowledge their existence but don't consider any of them worth much attention; the only non-starship
Enterprise that has ever served as a story point was the semi-fictional nuclear aircraft carrier from the 1980s. (And then there was the wholly fictional sailing ship
Enterprise that served as holographic set dressing in ST:GEN. Might have been fictional even in the Trek universe for all we know...)
However, there are several instances in Trek where our heroes establish that there has not been a starship
Enterprise before Kirk's. Thus, our heroes discount NX-01. They discount both NX-01
and the space shuttle and the ringship and the aircraft carrier and whatnot - they discount them all. That is, none of them is part of their six-strong list of starships named
Enterprise, from NCC-1701 to NCC-1701-E.
Now why are both the ringship and NX-01 discounted? Both could be assumed to be "starships" in the sense that they were ships that were capable of traveling to the stars. Our ENT heroes even use that technical term for their vessel.
The reason could be because they aren't Starfleet starships. But again, our ENT heroes use that very term to describe their ride. So we probably
have to start splitting hairs there, and assume that NX-01 and NCX-330 were operated by a foreign starfleet and thus not included in the UFP Starfleet starship lists of our heroes (quite regardless of whether these ships were historically important, and quite regardless of whether their importance was to their foreign nation or to the history of the UFP).
Throughout all the shows and films it's established that you have the ringship E and then the TOS E is next. Nothing in between.
Hmh? Nothing of the sort is established. There could have been an
Enterprise necklaceship and a braceletship after the ringship but before Kirk's vessel, or half a dozen space yachts or transports or luxury liners, or perhaps a world-famous space city of that name. Every list of pre-TOS
Enterprises is pick-and-choose anyway, and every list picks and chooses differently.
The only known limitation is that there should be no
starships other than those registered NCC-1701. Non-starships by the name
Enterprise can exist at any timepoint, including between the various NCC-1701s. It would probably be more consistent if these non-starships never did anything particularly historical, but that's not a strict requirement: it could simply be that our Starfleet heroes don't usually get excited about the fact that Earth's first spacegoing spa was named
Enterprise. But they do get excited about there only being four starships of that name between Kirk's first and Picard's last.
Timo Saloniemi