fuel sump... one step process
It depends on the type of aircraft
Not a good idea, as the fuel is considered contaminated. The fuel is usually recycled.
air fuel
Aircraft fuel, such as aviation gasoline or jet fuel, is specifically formulated for use in aircraft engines and meets strict safety and performance standards set by aviation authorities. Normal fuel refers to gasoline or diesel fuel commonly used in cars and other vehicles. Aircraft fuel has a higher energy content and is designed to perform under high-altitude and high-speed conditions.
Depends on the size and type of Aircraft. Link provided below llist fuel consumption for various Aircraft.
Yes, trapped fuel is included in the basic weight of an aircraft because it represents the weight of fuel that cannot be used for flight. This weight is accounted for in the aircraft's operating weight calculations.
You would have to specify a particular aircraft, "fighter aircraft" is too broad a definition.
When they put fuel in an airplane
fuel
Auxiliary fuel tanks are additional fuel tanks installed on aircraft to increase their range or endurance. They are used to extend the aircraft's flight time and allow it to fly longer distances without the need for frequent refueling stops. These tanks can be mounted internally or externally on the aircraft, depending on the design and requirements.
conformal fuel tanks
It is a very high octane fuel. Hope this helps!