Overall view of the gas generation subsystem.
At center (with the open flange) is the teardrop-shaped liquid propellant gas generator. The LPGG is
basically an inefficient rocket engine, producing hot gasses to spin the turbopump's
The LPGG attaches to the turbine.
To the left of the turbine is the turbine exhaust
hood, which redirects the turbine exhaust gasses to the heat exchanger (not
installed on this H-1).