jsc2023e046631

jsc2023e046631 (7/25/2023) --- Plexiglass is shown burning in Spacecraft Fire Experiment-IV (Saffire-IV). The flame appears orange because of the soot that is produced as it burns. As the plexiglass burns, the solid is melted, vaporized, and then the vapor burns. The bright flame balls in the flame is vapor burning as it is expelled from the surface. Saffire-VI burns plexiglass at higher oxygen concentrations. The Saffire experiments aim to inform the development of fire safety equipment and strategies for future spacecraft.