Pacwar is a set of rules for large scale dogfights in “The Universe.”
starships
Generic Outlandishly Big Spacefleets (GOBS) Rules
Generic Outlandishly Big Spacefleets (GOBS) is a set of free and easy-to-play rules for huge fleets of starships. The author writes:
G.O.B.S.! is fast-paced and easy to learn. Record-keeping is minimal; in most cases, ships blow up rather than retaining damage. (A two ship game of G.O.B.S.! would be over pretty quickly. This game is about fleets, Sparky! We want explosions all over the place!) The length of playing time is dependent on the size of your fleets, but an hour or two should do it for most cases. Wanna play longer? Build bigger fleets!
Independence War Paper Models
The Independence War Paper Models site has some very nice — and free — paper models of starships.
Turn Or Burn Spaceship Rules
Interformic Games offers a free miniatures game called Turn or Burn. The authors write:
Turn or Burn is a fast-paced game of space fighter combat for 2 to 8 players. To start a game, you design your fighter from a deck of system cards. Each turn you play a system or maneuver card facedown to plot the action your fighter will take. The game uses vector movement, so you must plan ahead! When everyone has plotted, all players reveal their actions simultaneously. Fighters move, guns fire, stuff explodes, and it’s on to the next turn.
There also are several modules for more detail.
Starship Schematics
Here’s a treasure trove for you science fiction miniatures wargamers: The Starship Schematics Database has illustrations of hundreds of spaceships form the Star Trek, Babylon Five, Space Battleship Yamato and Battlestar Galactica universes. I think these would particularly useful as a source of illustrations for home made counters for your games.