A-Ultra Series
The A-Ultra Series is a type of automatic train that was made by OwenChuaRBX and brought improvements to the ACX-Series. This train was developed as a result of a positive reaction to a design study project to commemorate the frontline workers of the 2020 cornavirus pandemic.
The A-Ultra Series is currently used on the Tayson Line, and was formerly used on the Owenton and Waterfront Line and the Chepstowe Line, until their closures in July 2021. The A-Ultra Series replaced the G-Series on the Owenton and Waterfront Line.