What is the function of the actuator connected to the primary fuel pump?

The primary function of the actuator connected to the primary fuel pump is to adjust fuel quantity. This means the actuator plays a crucial role in controlling the amount of fuel that flows from the fuel tank to the engine, ensuring that the engine receives the appropriate fuel flow for optimal performance.

In aviation, maintaining the correct fuel quantity is essential for engine efficiency, performance, and overall safety. The actuator's adjustments can respond to various factors such as engine speed and power settings, allowing real-time modulation of the fuel supply to meet the demands of the engine.

This mechanism is vital for adapting to changing conditions and ensuring the engine operates within its designed parameters, making efficient use of the fuel provided. Proper fuel quantity management also helps prevent fuel starvation or excessive fuel flow, both of which can lead to engine performance issues.