having two or more propellant charges with the propulsion gases exhausting through a common nozzle

Full Title

Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof > using solid propellants (F02K9/72 takes precedence; using semi-solid or pulverulent propellants F02K9/70) > having two or more propellant charges with the propulsion gases exhausting through a common nozzle