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 number of different hydrocarbons. The range of their sizes (molecular weights or carbon numbers) is restricted by the requirements for the product, for example, the freezing point or smoke point

 

Special grade of kerosine with a flash point of **5°F (*2°C), used for jet aircraft; may have methane or naphthene added to produce a **0°F (*3°C) flash point, for military aircraft. Kerosene-type jet fuel (including Jet A and Jet A*1) has a carbon number distribution between about 8 and *6 carbon numbers; wide-cut or naphtha-type jet fuel (including Jet B), between about 5 and *5 carbon numbers

 

Aviation fuel is a specialized type of petroleum-based fuel used to power aircraft. It is generally of a higher quality than fuels used in less critical applications, such as heating or road transport, and often contains additives to reduce the risk of icing or explosion due to high temperatures, among other properties. Most aviation fuels available for aircraft are kinds of petroleum spirit used in engines with spark plugs, i.e. piston and Wankel rotary engines, or fuel for jet turbine engines, which is also used in diesel aircraft engines. Alcohol, alcohol mixtures and other alternative fuels may be used experimentally, but alcohol is not permitted in any certified aviation fuel specification