Abstract: In the fire location, an ambient or atmospheric air mass flow (been a gas mixture of dry air and superheated water vapor) is compressed by a compression package. A hose transports this compressed air mass flow a given distance away up to a flames site, where an arrangement of pipes, elbow accessories, throttle valves, nozzles, and a distribution manifold, conforming together a fire fight boom with a “blast-gun”, allow the operator to direct upon the flames, a high speed ambient air jet containing water droplets with a high flame front aerodynamic penetration capability, which brings about the flames blown off and remaining not burned materials combustion inhibition. Such a high speed air jet containing water droplets is generated by the compressed air mass flow expansion in a jacketed convergent-divergent nozzle, whereinto a condensation sock wave is established producing such water droplets from the local ambient air water vapor contents.

Abstract: In the fire location, an ambient or atmospheric air mass flow (been a gas mixture of dry air and superheated water vapor) is compressed by a compression package. A hose transports this compressed air mass flow a given distance away up to a flames site, where an arrangement of pipes, elbow accessories, throttle valves, nozzles, and a distribution manifold, conforming together a fire fight boom with a “blast-gun”, allow the operator to direct upon the flames, a high speed ambient air jet containing water droplets with a high flame front aerodynamic penetration capability, which brings about the flames blown off and remaining not burned materials combustion inhibition. Such a high speed air jet containing water droplets is generated by the compressed air mass flow expansion in a jacketed convergent-divergent nozzle, whereinto a condensation sock wave is established producing such water droplets from the local ambient air water vapor contents.