Pellet-loaded multiple impulse rocket motor

There is disclosed an apparatus which may include a common nozzle and a plurality of combustion chambers coupled to the nozzle. Each of the plurality of combustion chambers may include a case, a solid fuel propellant charge in the form of a plurality of fuel pellets, and an igniter disposed to ignite the propellant charge. Each of the plurality of combustion chambers may also include a pellet retainer disposed to retain unignited fuel pellets within the case and a burst disk disposed between the propellant charge and the nozzle. Each burst disk may adapted to rupture when the associated propellant charge is ignited and to not rupture when a propellant charge of any of the other combustion chambers is ignited.