Jet A1

Jet fuel or aviation turbine fuel (ATF) is a type of aviation fuel designed for use in aircraft powered by gas-turbine engines. It is colourless to straw-coloured in appearance. The most commonly used fuels for commercial aviation are Jet A and Jet A1, which are produced to a standardized international specification.

Jet A and Jet A1 are paraffin type jet fuels and the most common fuels used in commercial jet engines. The primary differences between Jet A and Jet A1 are the higher freezing point of Jet A (−40 °C vs −47 °C for Jet A1), and the mandatory requirement for the addition of an anti-static additive to Jet A1.