What is a defining characteristic of aviation fuel?

A defining characteristic of aviation fuel is its low freezing point, which is crucial for maintaining its fluidity at high altitudes. As aircraft ascend, temperatures can drop significantly, and fuel that does not remain fluid at these lower temperatures can cause serious problems in fuel flow and engine operation. A low freezing point ensures that the fuel can be delivered effectively to the engines without the risk of solidification, which could lead to engine failure.

This characteristic is especially important for the safe operation of aircraft, as it promotes reliable performance in various atmospheric conditions that are encountered during flight. Additionally, aviation fuels are specifically formulated to meet stringent performance requirements, including stability and volatility at varying temperatures, thereby supporting safe and efficient aviation operations.