The turbine was also unique for the era, using a set of guide vanes that were adjustable for various operating speeds.

The guide vanes (or wicket gate) may be adjustable to allow efficient turbine operation for a range of water flow conditions.

The fans incorporated guide vanes for flow straightening to achieve maximum performance and ran at 995rpm.

Counter-rotating spools for the reaction turbines to reduce load on guide vanes.

These stationary compressors are actually static guide vanes where energy transformation takes place.

For such axial-flow compressors, consider a set of guide vanes with an approach velocity c1.

Water admission to the two nozzles is throttled by two shaped guide vanes.

The guide vanes therefore act as the valves between the penstock and turbine.

This means the HP turbine nozzle guide vanes would have to be different from the original!

This system changes the angle of the guide vanes depending on the exhaust pressure, giving the system excellent power throughout the rev range.