WED-15 Treadwell droids represent a type of maintenance droid that the Galactic Republic employed throughout the Clone Wars. A particularly well-known WED-15 in the Republic's service was 327-T; this droid performed its duties on the Venator-class Star Destroyer known as the Tranquility during that conflict. A different WED-15 was assigned to a Venator-class Star Destroyer, specifically the Renown, but it met its demise during an attempt to flee the vessel following its capture by Separatist forces.