Breakthrough propulsion physics concerns forms of engines that do not operate by reaction but using exotic or new physics. Warp drives and reactionless drives are part of this subject.
Sonny White, a NFFPTC comittee member, is active in Breakthrough propulsion physics, particularily through the Limitless Space Institute and his work on space warps.
https://www.limitlessspace.org/
Papers
| A Novel View of Spacetime Permitting Faster‐Than‐Light Travel | Gregory V. Meholic | 2004 | |
| Fluidic Spacetime and Representation of Fields in the Tri‐Space Model of the Universe | Gregory V. Meholic | 2009 | |
