Which is a Power Turbine Component?

Which is a Power Turbine Component?

• A. turbine Case
• B. Gas Generator Stator
• C. Stage 1 Nozzle
• D. P3 Air Port

Answer: (A)

The power turbine is the part of the engine that delivers shaft power to the helicopter rotor, so its components are those that form and house the turbine stages that actually turn the shaft. The turbine case is the outer housing for the turbine assembly and provides the structural support and flow path for the power-turbine stages, making it a clear power-turbine component. The gas generator stator belongs to the gas generator side of the engine, which drives the compressor and supports the fuel/air flow cycle rather than delivering rotor power. The Stage 1 nozzle is part of the turbine’s flow path but is typically described in the context of the turbine stages rather than as a discrete power-turbine component in many references. The P3 air port is a bleed/air-supply port, not a mechanical turbine component. So the turbine case best fits as a power-turbine component.

The power turbine is the part of the engine that delivers shaft power to the helicopter rotor, so its components are those that form and house the turbine stages that actually turn the shaft. The turbine case is the outer housing for the turbine assembly and provides the structural support and flow path for the power-turbine stages, making it a clear power-turbine component. The gas generator stator belongs to the gas generator side of the engine, which drives the compressor and supports the fuel/air flow cycle rather than delivering rotor power. The Stage 1 nozzle is part of the turbine’s flow path but is typically described in the context of the turbine stages rather than as a discrete power-turbine component in many references. The P3 air port is a bleed/air-supply port, not a mechanical turbine component. So the turbine case best fits as a power-turbine component.