The plasma jet facility is being used in studies of plasma ignition of solid propellants. The plasma is formed by rapid discharge of a .251 mF capacitor (5 kV charging voltage, 3.1 kJ stored energy) across a thin capillary (.12 in. diameter x 1.2 in.), causing ablation and ionization of the polycarbonate capillary surface. Temperatures of order 104 K, pressures of order 103 atm, and number densities in the range 1025-1026/m3 are achieved in the plasma.