Definition

An aircraft fuel system enables fuel to be loaded, stored, managed, and delivered to the engine(s) of an aircraft.

General Description

Multi-engine turboprop and turbojet aircraft normally have much more complex fuel systems that those found on smaller piston-engine aircraft. These complex systems are likely to include more tanks and more system automation. There are usually specific Aircraft Flight Manual (AFM) requirements with respect to fuel distribution in flight and the sequence in which tanks are to be filled on the ground and used in flight. Turbine aircraft may include an indication and alerting system that presents warning, caution, advisory, and status messages in plain text. Enhancements to the fuel systems commonly found in transport-category aircraft include: