F03HPRODUCING A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR from combustion products F02KIn this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme. F03H1/00 F03H1/00Using plasma to produce a reactive propulsive thrust generating plasma H05H1/00 ion sources per se H01J27/02, ion sources for plasma processing or ion beams H01J37/08 F03H1/0006Details applicable to different types of plasma thrusters arrangements specially adapted for fitting plasma engines in or to cosmonautic vehicles B64G1/405 F03H1/0012Means for supplying the propellant F03H1/0018Arrangements or adaptations of power supply systems for cosmonautic vehicles B64G1/42 F03H1/0025Neutralisers, i.e. means for keeping electrical neutrality F03H1/0031Thermal management, heating or cooling parts of the thruster temperature control for cosmonautic vehicles B64G1/50 F03H1/0037Electrostatic ion thrusters F03H1/0043characterised by the acceleration grid extraction optics for ion sources H01J27/024 F03H1/005using field emission, e.g. Field Emission Electric Propulsion [FEEP] F03H1/0056with an acceleration grid and an applied magnetic field F03H1/0062grid-less with an applied magnetic field F03H1/0068with a central channel, e.g. end-Hall type F03H1/0075with an annular channel; Hall-effect thrusters with closed electron drift F03H1/0081Electromagnetic plasma thrusters F03H1/0087Electro-dynamic thrusters, e.g. pulsed plasma thrusters F03H1/0093Electro-thermal plasma thrusters, i.e. thrusters heating the particles in a plasma resistojets per se B64G1/406 F03H3/00Use of photons to produce a reactive propulsive thrust F03H99/00Subject matter not provided for in other groups of this subclass