Which statement describes the power section of the PT6A-67P engine?

The power section of the PT6A-67P engine includes an integral oil system, which is crucial for its operation and maintenance. This system is designed to lubricate and cool the engine components effectively, ensuring smooth operation and reliability. The integral design means that the oil system is embedded within the engine’s structure, making it more efficient and reducing the likelihood of leaks or failures compared to external systems.

Having an integral oil system simplifies engine design and decreases the weight of the engine by eliminating extra components that would be needed for a separate oil system. This feature also enhances accessibility for maintenance and service, allowing for easier monitoring of oil levels and conditions.

In contrast, the other statements do not accurately represent the characteristics of the PT6A-67P engine. For instance, the engine does not have a single-stage compressor but utilizes a multi-stage compressor for improved efficiency and performance. While the power section does indeed drive the propeller, it also performs other essential functions, proving that it doesn't solely focus on propulsive power. Additionally, describing the engine as a two-spool axial engine aligns with its configuration, but it is not relevant to the defining feature of the integral oil system highlighted in this context.