A high power RF plasma thruster is proposed. A point design is presented capable of ten megawatts with only a thirty centimeter diameter plasma diameter and less than five meters long. Subscale tests are planned to verify plasma separation from field lines, necessary for thruster feasibility. Plasma density versus magnetic field, RF power, and other parameters will also be compared with the model of operation, allowing extrapolation of plasma parameters to the ten megawatt level. The RF plasma thruster offers very high thrust density, no grids or electrodes to limit lifetime or create contamination problems, variable specific impulse, and a simple design with no close tolerances which can be cheaply manufactured. POTENTIAL COMMERCIAL APPLICATIONS Electric thrusters are much more efficient in use of propellant than chemical thrusters. They are gradually entering service. The newest proposed commercial geosynchronous communications satellites use electric, with a propellant savings of perhaps a factor of ten. It will be some time before there will be a commercial application for a ten megawatt thruster, but we expect it will eventually happen. In the meantime, the RF plasma thruster can be used in lower power thrusters, where it may have advantages in terms of cost, compactness, long life, and lack of contamination
