from the scope of the invention in which case any portion of the catalyst bed 245 would considered to be identical with any other portion of the catalyst bed 245 in that each identifiable portion would contain catalyst and a resistive element 235 the resistive element 235 may also be independent of the catalyst bed 245 a form of support for the catalyst bed 245 or potentially the catalyst itself any method or means for associating a resistive element 235 with a portion of the catalyst bed 245 may be used without departing from the scope of the invention the ignition system 200 may comprise a voltage source 215 a capacitor 230 the resistive element 235 and switches 220 225 where the switches 220 225 may be under control of the controller 140 fig1 the ignition system 200 may have a charging mode and an operational mode while in the charging mode switch 220 may be closed and switch 225 may be open to allow the voltage source 215 to charge the capacitor 230 when in the operational mode switch 220 may be opened and switch 225 may be closed so that the capacitor 230 may serve as a power source and discharge across the resistive element 235 to provide sufficient heat to the portion of the catalyst bed 245 and aid the reaction of the monopropellant 250 this discharge by capacitor 230 may cause a rapid thermal increase of the portion of the catalyst bed 245 associated with resistive element 235 once the catalyst bed 245 and thus the reactor 135 has reached a predetermined thermal point the monopropellant 250 may be injected through the reactor 135 so that monopropellant 250 comes into.