Hoverjet

Hoverjets were aeroplane-like flying vehicles commonly used on Earth by 2065.

A hoverjet carried Commander Zero and Steve Zodiac from Space City to Unity City within an hour, (COMIC: Ceasefire — But War Tension Mounts...) and, later, back again. (COMIC: President Offers Peace...)

Lady Penelope Creighton-Ward bought a hoverjet in Strasbourg. However, it was not long before she was forced to abandon it in order to stop Mr Steelman. (COMIC: The Return of Mr. Steelman)