UFO How-To Aerospace Technical Manual Volume III: Plasma Propulsion SystemsPlasma propulsion, powerful thruster systems with an exhaust that burns hot enough to incinerate just about anything unfortunate enough to be in its reaction path. The next step in rocketry with higher efficiencies of thrust are created by higher burn temperatures, containment not limited by the characteristics of the holding materials, but instead contained by electromagnetic fields that can withstand the temperatures generated and far in excess.