Exact Relativistic 'Antigravity' Propulsion

The Schwarzschild solution is used to find the exact relativistic motion of a payload in the gravitational field of a mass moving with constant velocity. At radial approach or recession speeds faster than 3^-1/2 times the speed of light, even a small mass gravitationally repels a payload. At relativistic speeds, a suitable mass can quickly propel a heavy payload from rest nearly to the speed of light with negligible stresses on the payload.Comment: 4 pages, 3 figures, changed format only, attached 5 AVI files (animated exact solutions of black holes incident on initially stationary payloads