Jet A1 | Aviation Jet Fuel

Jet A-1 is the standard, globally used kerosene-grade aviation fuel that powers the vast majority of commercial and international aircraft. It is a highly refined petroleum product designed to meet stringent international standards for safety and performance. 

Here is a breakdown of its key characteristics and usage:

 PRIMARY USAGE

• Engine Type: Jet A-1 is designed specifically for aircraft powered by gas-turbine engines, which include jet engines, turboprops, and some turbine-powered helicopters. 

• Civil Aviation: It is the backbone of commercial and international air travel, being the most commonly available jet fuel outside of the United States (where Jet A is also widely used). 

• Military Equivalent: Its military equivalent is often designated as JP-8. 

JET FUEL REFINING

• Process: Jet A-1 is produced from crude oil primarily through distillation, which separates the oil into different fractions based on boiling point.

• Key Steps: The relevant fraction (kerosene) is then treated (hydro treated) to remove impurities like sulphur.

• Goal: The final fuel is carefully blended to meet strict requirements, especially a low freezing point (max -47°C (-53°F)) for high-altitude flight and a safe flash point (min 38°C (100°F)).

KEY COMPOSITION AND PROPERTIES

Jet A-1 is a kerosene-type fuel, meaning it is a middle-distillate petroleum product that primarily consists of hydrocarbons with 9 to 16 carbon atoms.