Which Fuel is Used in Aeroplanes?

Most modern commercial aircraft rely on jet fuel specifically developed for turbine-powered engines. The most common forms of aviation fuel used by airlines are Jet A, Jet A-1, and aviation turbine fuel.

What Is Jet A Fuel?

Jet A is a kerosene-based aviation fuel primarily used in the United States. It is designed for use in turbine-powered aircraft engines and performs reliably under a wide range of operating conditions.

What Is Jet A-1 Fuel?

Jet A-1 is the most widely used aviation fuel for international aviation. It has a lower freezing point than Jet A, making it suitable for long-haul flights operating at high altitudes and colder temperatures.

Key Differences Between Jet A and Jet A-1

Key takeaway: Both Jet A and Jet A-1 are aviation turbine fuels with similar performance characteristics. The main difference is that Jet A-1 has a lower freezing point (-47°C). This is why it is the preferred choice for international and long-distance flights that operate in colder conditions.

Aviation turbine fuel is the term commonly used in countries such as India for jet fuel supplied to turbine-powered aircraft. ATF is widely used by domestic and international airlines operating commercial flights.

Not all aircraft use turbine engines. Smaller planes powered by piston engines typically use AVGAS, short for Aviation Gasoline.

AVGAS is a specialised fuel developed for piston aircraft, including flight training aircraft, private planes, and certain recreational aircraft. Unlike aviation turbine fuel, AVGAS is formulated to meet the requirements of piston-powered engines.

For example, many flight schools use training planes like the Cessna 172, which runs on AVGAS. These planes have different engines from the turbine-powered planes airlines use.

This distinction is important when discussing what fuel aeroplanes use, as the answer depends largely on the engine type installed in the aircraft.

Several aircraft fuel types are used globally, depending on aircraft design and operating requirements.

The most common forms of aviation fuel include:

• Jet A

• Jet A-1

• Aviation turbine fuel (ATF)

• AVGAS

Large airlines operating commercial aircraft typically use Jet A-1 or aviation turbine fuel because these fuels are designed for turbine-powered jet engines.

Smaller piston aircraft generally rely on AVGAS.

Not every aircraft runs on the same fuel. The fuel used in aeroplanes is determined by the engine type and the recommendations provided by the manufacturer.

Aviation fuels must satisfy strict quality requirements before they are approved for use. Regular testing, inspections, and industry standards help ensure that the fuel used in aeroplanes remains dependable for flight operations.

As the aviation industry works toward reducing emissions, sustainable aviation fuel has become an area of growing interest globally.

SAF is produced from renewable sources like used cooking oil, agricultural waste, municipal waste, and other sustainable feedstocks. Unlike conventional aviation fuel, SAF aims to minimize lifecycle carbon emissions while remaining compatible with existing aircraft and airport infrastructure.

Many big airlines have already flown using blends with sustainable aviation fuel. Airlines like Lufthansa, British Airways, Singapore Airlines, and a few North American airlines use SAF as part of their efforts to be more sustainable.

One advantage of sustainable aviation fuel is that it can often be blended and used with conventional aviation fuel without significant modifications to existing aircraft systems.

While SAF is still being adopted on a larger scale, it is expected to play an increasingly important role in the future of aviation as the industry pursues long-term environmental goals.

The fuel used in aeroplanes differs significantly from the petrol and diesel commonly used in road vehicles.

Petrol is designed primarily for spark-ignition engines found in cars and motorcycles. Diesel is used in compression-ignition engines found in many trucks, buses, and commercial vehicles.

Aviation fuel must work in conditions that road fuels do not face. Planes fly at high altitudes where it gets very cold, so the fuel must stay stable and flow well even in freezing temperatures.

Aviation turbine fuel is formulated to meet the needs of turbine-powered aircraft engines, while AVGAS is developed specifically for piston aircraft.

Another key difference is the focus on fuel efficiency and reliability. Airlines follow strict fuel standards because fuel quality affects both safety and how well the engine works.

Whether traveling by air or on the road, safety and preparedness are always important. While aviation relies on strict safety standards and regular inspections, vehicle owners can also take steps to stay prepared for unexpected situations.

One of the most important responsibilities of vehicle ownership is maintaining valid insurance coverage. In India, third-party insurance is mandatory for all vehicles and helps cover liabilities arising from injury, death, or property damage caused to a third party. 

Depending on individual needs, vehicle owners may also consider broader motor insurance coverage to help manage expenses related to accidents, vehicle damage, and other unforeseen events. Having the right protection in place can provide greater peace of mind every time you travel.

The fuel used in aeroplanes varies depending on the aircraft and its engine type. Large passenger aircraft generally use Jet A-1 or aviation turbine fuel, while smaller piston-powered planes often operate on AVGAS. These fuels are specifically formulated for aviation use and must meet stringent quality and safety standards before reaching an aircraft.

As aviation changes, new fuels like sustainable aviation fuel will help lower environmental impact while keeping planes safe and efficient. 

Just as planes need the right fuel, your vehicle needs the right insurance. SBI General Insurance offers reliable motor insurance plans to help keep you protected on the road.

What fuel do small aeroplanes use?

Many small aircraft use AVGAS, which is specifically developed for piston-powered aircraft engines.

1. Why can't aeroplanes use regular petrol?

Most airline aircraft use turbine engines that require specialised aviation fuel designed for high-altitude operation, performance, and safety standards.

2. Is aviation fuel similar to diesel?

Kerosene-based jet fuels share some characteristics with diesel, but they are refined and tested to meet aviation-specific performance and safety requirements.

3. What is ‘Sustainable Aviation Fuel’ (SAF)?

SAF is a renewable substitute for conventional aviation fuel that is created from sustainable feedstocks and helps reduce lifecycle carbon emissions.

4. Is aviation fuel the same worldwide?

No. Different regions may use different fuel such as Jet A, Jet A-1, AVGAS, and aviation turbine fuel, although international standards help ensure consistency and compatibility.