What is the purpose of feed cells in an aircraft fuel system?

• A. To collect fuel from external sources
• B. To deliver the fuel to the engine
• C. To monitor fuel temperature
• D. To provide backup fuel storage

Answer: (B)

The function of feed cells within an aircraft fuel system is to deliver fuel to the engine. These cells are designed to ensure that a consistent and adequate supply of fuel reaches the engine, which is critical for maintaining the engine's operation and performance during flight. The feed cells manage the flow of fuel by drawing it from the main fuel tanks and supplying it at the required pressure for the engine to operate efficiently.

Fuel delivery is integral to the overall performance of the aircraft. It involves not only the quantity of fuel but also its ability to reach the engine in a timely manner, enabling optimal engine function. This aspect is vital during different phases of flight, such as takeoff, cruising, and landing, when fuel demands can vary significantly.

By ensuring that fuel flows seamlessly and reliably to the engine, feed cells play a crucial role in aircraft safety and efficiency, supporting both the primary function of propulsion and the operational norms of the aircraft's fuel management system.