Does that automatically mean its a cruiser like the constitution? I always imagined that the when the state of the art shields of today got replaced with the next gen one, that the old ones would be bumped down to the smaller ships. So of course it would end up getting the Galaxy type shields.
That's how things work in the real world, but we do not know if SF's technology works in the same fashion or is restricted to same limitations.
The Defiant for example was churning out much more fire power compared to the Galaxy class in terms of bringing down Jem'Hadaar bug ships.
'Bigger = better' was not always a factor in Trek (although sometimes it was).
Due to the Dominion War and the fact that the opposing power had the ability to churn out ships at a faster rate, it's reasonable to think that SF wanted to give it's smaller ships better capabilities, making numerous classes on similar or equal footing as the larger ship classes.
Anyway, I think the intrepid class definitely went above and beyond what it was designed for, but I got the impression that it was an interceptor/scout. And while it did have the powerful sensors for scientific missions, I think they were for searching as they were doing in Voyagers first mission trying to find the Maquis ship. beyond that she definitely seemed well rounded.
That gave you an indication the Intrepid class was an interceptor/scout?
Hm ... I didn't see it that way.
The sole reason it was sent after the Maqui ship was due to it's ability to go through the Badlands in one piece, whereas it was stated that other SF ships in the past had lots of issues with hull integrity and navigation of that area of space to begin with.
Apart from that, how did Voyager go above and beyond of what it was designed exactly?
I agree that it went through numerous situations, but had it not been designed for space (which is pretty big btw) exploration, then I doubt it would survive the first year in the DQ.
The crew of course made numerous modifications to the ship itself and had to improvise in order to improve it's functionality and compensate for potential problems, but that is expected to happen on any vessel when in deep space.
The thing is that Voyager was not meant to be sent on a deep space mission on it's first assignment and was not supplied for such a task (hence the problem with resources and torpedoes we witnessed).
Since the ship was barely released into service into a simple search/retrieval mission, SF hardly thought it necessary to equip the vessel with abundance of things for such a task.
And even more so, the ship was supposed to be back in 2 weeks.
So I think the design proved to be a huge success after the crew made it back mostly in one piece (with some losses), and likely demonstrated to SF that any class of ship can make it if the crew is resourceful enough.