They do call at least Voyager "the Voyager," at the beginning, but the crews of the Voyager and the NX-01 lived on their ships, more than the crews of the Defiant and the D. They rarely had shore leave, let alone the option to take a leave of absence, or transfer to another ship. It makes sense they'd be more casual about them. When they were saying "We have to get back to Voyager," they were basically saying "We have to go home."
Yeah...'the Voyager' sounds awkward to me in a way that 'the Enterprise' doesn't. You also hear this in the real life Voyager probes.
With many other ships, both real and fictional, the same phenomenon is noticeable - if the ship name sounds awkward with a 'the' in front, it will usually not be part of the name.
Interesting, I hadn’t considered that. Though that would still not explain why even the "formal" guys like janeway and tuvok are using the colloquial form at all times, even when interacting with other species. I’d imagine especially tuvok would use the correct form at all times, just because it is the proper way.
For ENT I have nothing, only perhaps that the snobby Vulcans were referring to it as just enterprise as well, right from the start. All other non human ships got addressed properly though (the kumari, the dal‘kyr).
Because the ship is a character, who is with us for the story, and protecting her crew. In both Voyager and Enterprise, that was it, you couldn't go to drydock between episodes to be fresh again nearly as often.
Fate protects fools, little children, and ships named Enterprise.
If you add the "the" its a jinx and you end up blowing up over and over again in a time loop, or hitting a quantum filament that takes everything offline but the gravity plating.
What temperature does the nozzle and bed need to be for quantum filament to print right? Every time I tried, it made me a pair of ducks instead of a paradox, and benchy refused to print entirely.