Implemented Equations from So You Wanna Build a Rocket? by Winchell D. Chung, possibly the best source page for coming up with realistic science-fiction.

The Armory: Various Spacecraft Weapons Systems

Offensive Systems

Point Defense Systems

The Ship Yard: Engines, and other critical components

Outfitters: Sundries and Mission Requirements

Referrals: External Links to Useful Calculators

... more to come shortly...