BattleSpace
BattleSpace is the 2nd edition to Battletech Air/space rules. This rule set introduced principal rules for Warships to the game. It came in a large introduction box like Aerotech, and included an extentive history of the universe up to 3057. Due rule changes, some aircraft/aerospace craft abilities were altered to the point of being rendered useless for game play.
A supplement information book was printed for individual vehicles used in the game. Now out of print Technical Readout: 3057.
Read more about this topic: Aero Tech