An improved magnetic propulsion system with a Linear Polarity Switching (LPS) series having a plurality of magnets that are magnetically and polarity orientated structurally and arranged to form forces of magnetic fields and polarity orientations of antithetical flux actions at one end that attract and repel at the other end against London Spinal Assemblage (LSA) configurations having a plurality of magnets that are magnetically and polarity orientated structurally and arranged to form forces of magnetic fields and polarity orientations of flux that attracts and repels the connections to enable a train or a load as a retrofit, along the XZ-plane of the fixed LPS series to have initial momentum at rest, continuous object acceleration or deceleration, and braking.