A new project. Beginning the Konay Industries line of exotic star cruisers.
It has a warp ring for interstellar travel, hybrid air-breathing rocket engines for in-atmosphere flight, chemical rocket engines and maneuvering thrusters for space impulse drive.
The ring is designed to maintain an elliptical torus shaped expansion/contraction of spacetime similar to the proposed warp drive by Miguel Alcubierre and Harold White. So it uses the idea of negative mass, essentially.