Why kerosene is used as jet fuel?

In addition to a lower freezing point, kerosene has a higher flash point than gasoline. With its higher flash point, kerosene offers higher octane ratings to achieve greater power and efficiency when compared to its gasoline counterpart. In fact, this is the main reason kerosene fuel is used in airplanes.

Why petrol is not used in Aeroplane?

Airplanes have severe weight constraints, and at high altitudes it is very cold. It would be difficult to keep diesel fuel warm enough to stay liquid at high altitude. Petrol is volatile and expensive, so it’s not used in jet engines (much, some military engines use weird fuels a bit like petrol).

Why are planes always so cold?

It occurs when the body tissue doesn’t receive enough oxygen. And high cabin pressure and warm temperatures can further this reaction. It’s fairly common in airline passengers. Since body temperatures vary, airlines will keep the temperature on the low side just to be safe.

How cold is it at 40 000 feet?

Between 30,000 and 40,000 feet (9,000 and 12,000 m), the cruising altitude of most jet aircraft, air temperature ranges from -40° F to -70° F (-40° C to -57° C).

What fuel do helicopters use?

Aviation kerosene, also known as QAV-1, is the fuel used by airplanes and helicopters equipped with turbine engines, such as pure jet, turboprops, or turbofans.

Why diesel is not used in Aeroplane?

Diesel is fairly unstable when exposed to variations in temperature. As planes fly higher they are exposed to temperatures going upto -60°C and the fuel gets real cold. As you should know diesel forms a sticky, gel like substance when cooled.

What does helicopter use as fuel?

How do planes get fuel in the air?

The Air Force uses flying booms, whereby the receiving planes fly in formation to the tanker. The Navy, Marines and the Army use probe-and-drogue, whereby a flexible hose is used with a drogue or a basket on the end. The probe-and-drogue system can pump 200 to 300 gallons per minute.

Why does my aircraft have a certain amount of unusable fuel?

Aircraft have a certain amount of unusable fuel because in certain flight attitudes some of the total fuel can become inaccessible, particularly with low fuel levels. Counting some of the total fuel as unusable ensures that the entirely of your usable fuel (which is shown on your fuel quantity indicators) is accessible in all phases of flight.

Why don’t small planes use turbine (turboprop) engines?

Why don’t small planes use turbine (turboprop) engines? Turboprop engines are more fuel efficient 1, lighter for the same power, mechanically simpler and consequently more reliable. They are also slightly easier to operate (no need to fiddle with mixture) and burn cheaper fuel.

Why is it easier to design fuel tanks in cars than airplanes?

So it’s easier in a car to design a fuel tank that will use essentially 100\% of the available fuel because of gravity. In an airplane, unless you are taxing or in stable cruise flight, the fuel tank’s center of gravity is going to constantly be changing due to the aircraft turning, climbing, descending, and going through turbulence.

Does full fuel weight and balance include usable fuel?

It does not include any usable fuel. So if you are calculating the weight and balance for full fuel, you would just need to use the total usable fuel and leave the unusable out of it since it’s already factored in. While you’re on the subject… here are other articles on Airplane Academy related to fuel: