Question

Which fuel is used in aircraft?

Answer 1

The crew can use an aircraft fuel system to pump, manage, and deliver aviation fuel to the aircraft's propulsion system and auxiliary power unit (APU). Because of the different performance of the aircraft in which they are installed, fuel systems vary greatly. A single-engine piston aircraft has a simple fuel system; a tanker (such as the KC-135) can also provide fuel to other aircraft in addition to managing its own fuel.

Complete answer:
When choosing fuel for an aircraft, specific energy is an important factor to consider. Hydrocarbon fuels have a much higher energy storage capacity than batteries, which has prevented electric aircraft using batteries as the primary propulsion energy store from becoming viable for even small personal aircraft.
Aviation kerosene, or QAV-1, is the fuel used by planes and helicopters with turbine engines, such as pure jets, turboprops, or turbofans. The thermal stability of Aviation kerosene ensures the aircraft's performance. Because it is more stable, QAV-1 allows airlines and aircraft and helicopter owners to extend the time between scheduled aircraft maintenance services, lowering its cost. The kerosene produced complies with the AFQRJOS Jet A-1 specifications (Aviation Fuel Quality Requirements for Jointly Operated Systems). Aviation Kerosene Quality Assurance System includes systematised quality monitoring procedures.
Small planes, light helicopters, and vintage piston-engined planes use avgas (aviation gasoline). Its formulation differs from the conventional gasoline used in automobiles, which is referred to as mogas or autogas in the aviation industry.

Note:
Aviation fuel can cause significant environmental harm, therefore, all fueling vehicles must be equipped to prevent fuel spills. Any fueling operation must have fire extinguishers on hand. Aviation fuel fires and spills are handled by firefighters who have been specially trained and equipped. Contaminants such as water or dirt must be checked in aviation fuel on a daily basis and before each flight.