Air train

The Magician from Mars prevents an air-train flying off the rails. (COMIC: On Earth)

In one universe, air trains were a form of group transport on a futuristic Earth. They did not actually fly under their own power, but rather were suspended in their air by passing through a series of elevated metal rings called magnetic induction coils. Mysterious greens ships (COMIC: On Earth) manned by agents of the Hood (COMIC: Menace of the Hood) once sabotaged several air trains. The Magician from Mars prevented one flying off its rails after witnessing the sabotage of the coils, and downed the ship responsible. However, she did not find out the identity of the individual who had ordered the mission at the time. (COMIC: On Earth)