Antigravity shuttle

Antigravity shuttles, colloquially antigravs, are levitating aircraft that use relativistic effects to temporarily cancel out the influence of gravity. Though numerous designs for antigravs exist, most active shuttles use ekaradium-based engines.

History
The concept of antigravity goes back centuries before the Occupation. Pre-war fiction is rife with antigravity vehicles, but no functioning designs had ever been fully realized. With the arrival of the Combine, true antigravity vehicles were introduced in the form of synth air units and levitating facilities.

The discovery of ekaradium by the rebel cell Transmissions in late 2020 spurred the creation of the first antigravs in secrecy. After the Liberation, ekaradium was quickly adapted by the rest of the world, most notably the Zaibol corporation.