Do I have to spell this one out? You guys should be able to take the fan goggles off for a minute to see what I'm saying... even if you hate it.
You can characterize it however you want, but I already posted something from the writer's guide that compared Enterprise to a warship. Roddenberry's earliest treatments identified
Enterprise (originally
Yorktown) as a "cruiser," which is historically a naval type. Is there any citation for anyone expressing intent that
Enterprise be comparable to a contemporary Coast Guard vessel rather than an historical naval vessel?
And even if the original intent was a non-naval
Enterprise, it would have applied to the two pilots only, because the "Balance of Terror" war story was in the works quite early, April-July 1966, around the same time as "Charlie X," "The Man Trap" and some other episodes that aired before it.
But that's okay... because (as I pointed out) the Enterprise transforms from a vessel of exploration into a weapons platform over time. If we want to take this back to classical nautical times, she went from being like the HMS Bounty or HMS Discovery to being like the HMS Victory.
I don't think it was ever intended that
Enterprise was a merchant vessel purchased by Starfleet to conduct a one-time research mission. Nor did she ever become a
Victory, which was a first rate ship of the line and served as a flagship for 32 of her 34 years in service.
Never was the Enterprise depicted as a battleship. At best a cruiser in the old sense of the word. A vessel large enough to act independently and was flexible in its mission types. In the days of sailing this would be a sloop or a frigate.
Indeed. Before WW2 cruisers of various sizes conducted all kinds of world-wide missions. In the 19th century, most major peacetime navies were organized with cruising squadrons distributed at various stations around the world. This is mostly notable in the case of the global British Empire, but the US Navy had similar missions for its cruisers. The US Naval Advisory board wrote in 1884:
Taking into proper consideration the various requirements of the different squadrons for surveying, deep-sea sounding, protection and advancement of American commerce, exploration, protection of American life and property endangered by wars between foreign countries, and service in support of American policy in matters where foreign governments are concerned, forty three unarmored cruising vessels are required constantly in commission.