Davros's command ship

The command ship belonging to Davros was destroyed in the first year of the Last Great Time War when it flew into the jaws of the Nightmare Child. It had been believed by all at the time that Davros was killed in this incident. However, Dalek Caan, a survivor of the Time War, used a temporal shift to break the time-lock and save Davros from the doomed vessel. Following this, Davros would go on to found the New Dalek Empire. (TV: The Stolen Earth)