Dave5

According to Helicity, the core technology behind their fusion drive efficiently converts electricity into plasma heating, using a unique approach to scale fusion conditions and directly produce thrust​​. Their method, distinct from conventional magnetic or inertial (laser) fusion, employs self-organized Taylor relaxation and magnetic reconnection physics, combined with a peristaltic magnetic compression scheme.

In very simple terms, the engine uses hot ionized plasma gas heated by magnetic fields that are constantly forced together to the point where they must then break apart. It is this seesaw of magnetic forces that generates vast amounts of energy, heating the plasma to the point where fusion occurs, forcing the nuclei so close that they overcome their electrostatic repulsion and fuse together. To simplify this even more, the energy created by that fusion is aimed out of the tailpipe of the Helicity Drive, and you generate a helluva lot of thrust.