Geshrinari Shipyards Graviton Engines are a staple of civilian ships. They are one of the safest and most reliable for atmospheric travel and landing. They are energy dependent requiring large amounts of energy to produce their thrust. They work by the manipulation of a gravity field around the ship. Alternating between pushing away from a gravity source to pulling towards one.
Graviton Engines produce a constant thrust, but do suffer from a low acceleration rate. Their thrust efficiency is dependent upon a body with sufficient gravity. In deep space outside of the influence of a star system, the graviton engine is ineffective.