Among the wide range of gas-generating solids which can be used as the solid charge, such materials as ammonium and/or silicone-containing plastics can be used and the following are some examples? mixture of ammonium nitrate and/or potassium nitrate, activated charcoal of large specific area, ammonium oxalate and/or dihydroxyl glyoxime and combustion moderators; mixtures of ammonium nitrate, polyb