Concorde Hydraulic Systems
Originally there were four Hydraulic systems in the Concorde design, but the RED system was deleted, as it was felt to be superfluous. Airbus copied the hydraulic naming system (Green, Blue and Yellow hydraulic systems) for their aircraft from Concorde, although it was pinched for Concorde from the first jet airliner in the world, the British built Comet.
Hydraulic Power supply
Hydraulic Green System
Gold Brazing on Pipework
Hydraulic Pipeline Clamp blocks