Hydroflax's flying saucer

From Tardis Wiki, the free Doctor Who reference

Hydroflax's flying saucer was a huge, red spaceship.

He once landed on the human colony Mendorax Dellora in the year 5343, while River Song scoured the local village for the surgeon she'd hired to extract the Halassi Androvar from Hydroflax's head. (TV: The Husbands of River Song)