![[109-509.C Control Systems]](pix/hwk509C4.jpg)
An additonal view of the motor control mechanism, the turbine speed control visible in the middle of the photograph.
![[109-509.C Top]](pix/hwk509C5.jpg)
In this view, looking down onto the top of the motor, is visible the yellow-painted link and control rod between the fuel control valve at the top of the shot and the T-Stoff header tank and turbine speed control just out of frame to the lower right of the picture.
The black pipe at the very top of the picture leads C-Stoff out to the combustion chamber for cooling, the return flow entering the fuel filter from the right.
The fuel flow control valve to the top left of the picture shows the three stage C-Stoff output. Also from this angle the entire route of the T-Stoff outlet from the pump, around and to the inlet side (right here) of the flow control and pressure equalising unit.
![[109-509.C Fuel Control System]](pix/hwk509C6.jpg)
The same unit, seen from a different angle, with the fuel flow control valve. This motor has been painted so that the route of the fluid flowing from the regulating units to the combustion chambers is shown in red. But the T-Stoff pipes can be distinguished from the C-Stoff circuit by virtue of the larger diameter pipes.
The silver pipe curving in around the bottom of the picture is the output of the steam generator on its way to the turbine of the main fuel pump.