Jet air aurora lx\/wh\/f\/60 белый

Jet fuel , aviation turbine fuel ( ATF ), or avtur , is a type of aviation fuel designed for use in aircraft powered by gas-turbine engines . It is colorless 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 defined by the requirements for the product, such as the freezing or smoke point. Kerosene -type jet fuel (including Jet A and Jet A-1) has a carbon number distribution between about 8 and 16 (carbon atoms per molecule); wide-cut or naphtha -type jet fuel (including Jet B), between about 5 and 15. [1]

Fuel for piston-engine powered aircraft (usually a high- octane gasoline known as avgas ) has a low flash point to improve its ignition characteristics. Turbine engines can operate with a wide range of fuels, and jet-aircraft engines typically use fuels with higher flash points , which are less flammable and therefore safer to transport and handle.

The SR-91 Aurora is an alleged hypersonic spy plane developed in the 1980s or the 1990s, but currently there is no hard evidence to support its existence, even though many people have reported sightings. [1]

Aviation Week and Space Technology first reported the news that the term "Aurora" was inadvertently released in the 1985 US budget, as an allocation of $455 Million for aircraft construction in fiscal year 1987 [2] .

The term "Aurora" originates from a blacked out report where "Aurora" was left available, and for which the visible content matched expectations of such a spyplane. The plane is reportedly the successor to the Lockheed SR-71 Blackbird .