UnnamedCharacter has pulled off a very neat trick! He's experimented with higher quality ship sprites in Wing Commander 1 and managed to get them to appear as a sharper looking vessel in the game. It's an exciting development, but there's a couple of caveats here: a higher resolution Tiger's Claw happens to exists for cutscene use, but it's not carved up in various sprite angles and it's only one ship. And this only seems producible in the Kilrathi Saga rather than DOS, so don't expect a full HD conversion of WC1 to be immediately forthcoming, but this shows there's certainly some very interesting potential for future digital exploration!
Ships are represented as a series of individual sprites which are scaled as needed. This becomes obvious as you get closer to a ship since they become very pixelated.
This first row of images is the standard ship sprites.
This second row uses ship sprites which have been scaled up to 200%. I have also substituted one image for a more detailed version (taken from TITLE.VGA); although the angle is different, close enough for a proof of concept.
Unfortunately, this only seems to work in Kilrathi Saga; I did not have any success in the original DOS version, the game locks-up.