DEF STAN 91-87 PDF

DEFSTAN / Turbine Fuel, Aviation Kerosine Type, Containing Fuel System Icing Inhibitor – Nato Code: F – Jsd: Avtur/fsii Describes requirements. DEF-STAN Turbine Fuel, Aviation Kerosine Type, Containing Fuel System Icing Inhibitor Nato Code. for Jet A-1 grade (see below) are the UK specification DEF STAN (Jet. A-1) NATO code . namely DEF STAN AVTUR/FSII (formerly DERD ).

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The power increase is achieved by cooling the air consumed, to raise its density and thereby increase the weight of air available for combustion. Tetra-ethyl lead TEL is the only approved anti-knock additive for aviation use and has been used in motor and aviation gasolines since the early s.

Jet A-1 is a kerosine grade of fuel suitable for most turbine engined aircraft. Civil Jet Fuels Aviation turbine fuels are used for powering jet and turbo-prop engined df and are not to be confused with Avgas. Jet-8 is the military equivalent of Jet A-1 with the addition of corrosion inhibitor and anti-icing additives; it meets the requirements of the U.

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Biocide additives are sometimes used to combat microbiological growths in jet fuel, often by direct addition to aircraft tanks; as indicated above some anti-icing additives appear to possess biocidal properties.

Jet-5 is a high flash point kerosine meeting the requirements of the U. Aviation Jet Fuel Information. Product 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, amongst other properties. Aviation Fuel Home Aviation Fuel.

Outside former communist areas, there are currently two main grades of turbine fuel in use in civil commercial aviation: Static dissipater additives reduce the hazardous effects of static electricity generated by movement of fuel through modern high flow-rate fuel transfer systems. It is widely available outside the U. This type of additive does not affect the freezing point of the fuel itself.

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Aviation Fuel – Jet Fuel Information

Outside former communist areas, there are currently two main grades of turbine fuel in use in civil commercial aviation: Metal de-activators suppress the catalytic effect which some metals, particularly copper, have on fuel oxidation. It is widely available outside the U. Some corrosion inhibitors also improve the lubricating properties lubricity of certain jet fuels. Search or Browse Our Dec. JP-5 JP-5 is a high flash point kerosene meeting the requirements of the U.

This effect can be obtained by using water alone but it is usual to inject a mixture of methanol and water to produce a greater degree of evaporative cooling and also to provide additional fuel sfan. Leave us a question or comment on Facebook.

Use of a corrosion inhibitor in power boost fluids supplied for these engines is not permitted. JP-8 JP-8 is the military equivalent of Jet A-1 with the addition of corrosion inhibitor and anti-icing additives; it meets the requirements of the U.

Aviation Fuel

A few additives in common use are as follows: Anti-oxidants prevent the formation of gum deposits on fuel system components caused by oxidation of the fuel in storage and also fef the formation of peroxide compounds in certain jet fuels. Similar stqn systems are also incorporated in some turbo-jet and turbo-prop engines. The quantity to be added and approval for its use in various grades of fuel is strictly controlled by the appropriate specifications.

There is another grade of jet fuel, Jet B which is a wide cut kerosene a blend of gasoline and kerosene but it is rarely used except in very cold climates.

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Anti-knock additives reduce the tendency of gasoline to detonate. Jet A-1 and Jet A, both are kerosine type fuels.

Anti-icing additives can also provide some protection against microbiological growth in jet fuel. Jet B is a distillate covering the naphtha and kerosine fractions. Jet A-1 and Jet A, both are kerosene type fuels. Military Jet-4 is the military equivalent sran Jet B with the addition of corrosion inhibitor and anti-icing additives; it meets the requirements of the U. It can be used as an alternative to Jet A-1 but because it is more difficult to handle higher flammabilitythere is only significant demand in very cold climates where its better cold weather performance is important.

Fuel System Icing Inhibitors Anti-icing additives reduce the freezing point of water precipitated from jet fuels due to cooling at high altitudes and prevent the formation of ice crystals which restrict the flow of fuel to the engine. Corrosion inhibitors protect ferrous metals in fuel handling systems, such as pipelines and fuel storage deff, from corrosion.

The methanol and water used must be of very high quality to avoid formation of engine xtan. It can be used as an alternative to Jet A-1 but because it is more difficult to handle higher flammabilitythere is only significant demand in very cold climates where its better cold weather performance is important.

There is another grade of jet fuel, Jet B which is a wide cut kerosine a blend of gasoline and kerosine but it is rarely used except in very cold climates. The water must be either demineralised or distilled and the only adulterant permitted in the methanol is up to 0.