Here's a cool place to get started. It has many angles on the 3D models, and a blueprints section for inspiration. I will update as I find links.
http://humster3d.com/
Submitted by Skua
the-blueprints.com
Starship Blueprints from Star Trek, Battlestar Galactica, Babylon 5, and Space Battleship Yamato
shipschematics.net
Many albums of photos of modelcraft, with names for you to Google. And there are some WIERD planes there!
Unicraft Models
Flash animations of joints, linkages and mechanisms, for something different.
mekanizmalar
@JolanXBL I don't actually use it all that much, I admit, but the amount of stuff available there is pretty impressive. I hadn't seen the original one you posted before, those looks like some seriously high-quality models
Ah! Completely forgot that site! Haven't been there since I played Banjo-Kazooie: Nuts & Bolts :)
https://www.the-blueprints.com/blueprints/