Cloudbase

Cloudbase was an aircraft carrier and the main headquarters of the Earth security organisation Spectrum. It was usually positioned over Nice, France, but could be piloted to anywhere on the planet. (PROSE: SPECTRUM et al.) According to one account, it was a feature of the television series Captain Scarlet. (TV: Death in Heaven)

A mysterious object
On 2 September 2067, reports poured into TV 21 about a "strange floating aircraft carrier" which had been sighted above Nice. It was described as a massive flight deck slung between four engines. European newspaper reporters chartered aircraft to get a closer look but World Air Force fighters quickly turned them away. Lens Sharpe drew an artist's impression of the craft for TV 21. (PROSE: Capt. Black Expedition Lost!)

Mike Leyton quickly ordered Sharpe and reporter Pete Tracker to Nice in order to investigate what he described as "some mysterious spaceship". (COMIC: The Premonitions) Sharpe could only identify the platform as a "splodge" in his photographs due to the restrictions put in place by the Air Force, though he and Tracker were eventually able to follow Destiny Angel in their own craft after she took off in the direction of Glenn Field. (COMIC: SPECTRUM) After Tracker was able to convince Colonel White to take part in an interview on Spectrum, an image of Cloudbase appeared alongside the article on the front page. (COMIC: SPECTRUM, PROSE: SPECTRUM is Green)