That doesn't even look like a texture resolution issue.
That looks like you grabbed a texture that doesn't fit its UV map and smeared it on.
I don't think UVmapping a ship to fit a specific texture that isn't made for it is good practice, as chances are, parts of it won't fit right, there'll be stretching/distortion due to well, the base geometry of the model and the texture's intended model having differences.
That, or the UVmapping is just plain bad but seeing as the stretching is on the friggin easiest face to align (heck, you could just planar align Z it, I don't think that's the case...)
But yeah, what's the point of having shiny new ships if they're not intended to even be looked at from up close? What's the point of making it high poly?