|Unit type||Custom Seventh Generation Knightmare|
|Operator||Empire of Briton|
|Dimensions||Overall Height: 5.45 meters|
|Weight||Combat Weight: 7.16 metric tons|
|Powerplant||Type 15 Yggdrasil superconductor transfer system|
|Equipment and Design Features|
The RPI-209 Gloucester-Tristan Custom is a Custom Seventh Generation Mass Production Knightmare frame in Code Geass R3: SOD.
The Gloucester-Tristan is based off of the Tristan and Gloucester machines. It has the color scheme of the Tristan as well as its cockpit, but it has the body of the Gloucester.
The machine was designed to be the predecessor to the Tristan, mainly for practice use. It lacks most of the weaponry the Tristan has and it has a different floatation system used mainly for Naval launch.