What is the primary fuel type used for the F/A-18 aircraft?

The primary fuel type used for the F/A-18 aircraft is JP-5 (F-44). JP-5 is a kerosene-based jet fuel with a high flash point, making it safer for use on naval vessels where the risk of fire is a significant concern. This fuel is specifically formulated for military applications, ensuring it performs well under various operating conditions, including high stress and temperature variations experienced in military flight operations.

JP-5 is used because it has better safety properties compared to other fuels, such as JP-4, which has a lower flash point and presents a greater fire hazard. The choice for JP-5 ensures that operational safety is prioritized while still meeting the performance demands of the F/A-18. Its chemical composition also provides efficient combustion characteristics that are vital for the aircraft's performance and range.

In contrast, other fuel types listed, like Jet A, are primarily used in civilian aviation and may not meet the specific military specifications and operational requirements necessary for the F/A-18. Likewise, fuels like JP-4 and JP-8 have distinct performance characteristics that do not align with the stringent requirements set forth for naval aviation operations, highlighting the importance of selecting the appropriate fuel type for military aircraft.