Invisible Plane

It was created by William Moulton Marston and first appeared in Sensation Comics #1 (January 1942).

[1] In pre-Crisis continuity, Wonder Woman used the Invisible Plane to fly due to being unable to do so on her own.

[2][3][4] After being altered by gremlins, the Plane develops artificial intelligence and the ability to speak.

[5] In post-Crisis continuity, the Invisible Plane is reimagined as a sentient alien crystal named Dome that can transform into several vehicles, including an invisible plane.

2) #201, Dome sacrifices itself to stop a tsunami and is rendered inanimate.

From The New Original Wonder Woman .