R2-Q5 Imperal Astromech Droid Coll2 POTJ 2000
Source: Return Of The Jedi
R2 units specialize in starship diagnostics and repairs. However, Imperial designers consider astromechs to be unneccesary weight for their short range TIE fighters. On the second Death Star, R2-Q5 helps maintain the station's elaborate weapons and security systems, and also services all TIE fighters and bombers.
