There's a really interesting project a guy is documenting online to make a scale version of Attack Wing:
http://blacksixredseven.blogspot.com.au/search/label/ATTACK WING: Boss' BIG Approved Models
However, as impressive as that is... I kinda justify the scale thing to myself by saying they are just meant to represent where the ships are in a much larger, massive space. Does that make sense? I don't really think of the ships as moving 'to scale', rather being tiny things in a vast space and the model is just there to say: "This is where these ships are." not: "And this is how big they are."
I mean, I don't really think of starship battles being in such a confined space, for starters. But also, the scale of the ships is ridiculous in some instances. I mean, the Romulan Warbird is apparently only 300m smaller than DS9! Did it ever look that way on screen- they always looked to be slightly larger than the ENT-D, to me. I think the show was quite 'fluffy' with ship sizes, so I have no problem if the game does that as well. While a 'to scale' project sounds cool, I think it will get way to unwieldy to represent everything to scale. Can't we just say the game is the computer simulation of a real-time battle, and the models are just the icons for each ship- not to scale, just showing what ship is where?