Quantum Slipstream

From Hidden Frontier

The quantum slipstream drive is an advanced form of interstellar propulsion that achieved and exceeded what failed Federation attempts using transwarp were meant to do: exceed the warp speed barrier.

The slipstream is a narrowly-focused, directed warp field that is initiated by manipulating the fabric of the space-time continuum at the quantum level. It works by focusing a quantum field through a deflector dish to generate massive changes in local space curvature; this creates a subspace tunnel, which is projected in front of the vessel. Once a ship has entered this tunnel, the forces inside propel it at incredible speed.

In 2378, major advancements were made when the USS Voyager returned to Federation space. Ro Nevin was confident that the Quantum Slipstream Drive would be a plausible working engine by the next year. (HF 2.04 - "Great Starship Robbery")