Special grade of kerosine with a flash point of 125°F (52°C), used for jet aircraft; may have methane or nahene added to produce a 110°F (43°C) flash point, for military aircraft.Kerosene-type jet fuel (including Jet A and Jet A-1) has a carbon distribution between about 8 and 16 carbon ; wide-cut or naha-type jet fuel (including Jet B), between about 5 and 15 carbon Jet fuel is a type of aviation fuel designed for use in aircraft powered by gas-turbine engines. It is clear to straw-colored in appearance. The most commonly used fuels for commercial aviation are Jet A and Jet A-1 which are produced to a standardized international specification. The only other jet fuel commonly used in civilian turbine-engine powered aviation is Jet B which is used for its enhanced cold-weather performance.
Jet fuel is a mixture of a large of different hydrocarbons. The range of their sizes (molecular weights or carbon ) is restricted by the requirements for the product, for example, the freezing point or smoke point