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Detail of the liquid propellant gas generator (LPGG) injector assembly and control valve assembly.

Picture 2 of 2.

The silver neck closest to the brown-colored LPGG is part of the LPGG proper; it has two igniter ports (at left and right), with an unidentified port in the middle.

Moving away from the LPGG proper, the slightly tan component is the injector assembly, which sprays the RP-1 and LOX into the LPGG combustor.

Behind the injector assembly is the control valve assembly, which controls the flow of propellants into the LPGG.