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View of the main fuel valve end of the No. 1 fuel high-pressure duct (with the plastic wrap still over the end of the duct).

The fitting at left (facing the camera) is the gimbal actuator tap-off flange. When in a single-engine display, this flange is capped (as it is here), but when installed on a stage, a hose connects the fuel high-pressure duct to the stage hydraulic system at this point.

The fitting pointing to the left (with the cap which has been removed) is the fuel high-pressure duct drain quick disconnect coupling assembly.