For a flight requiring takeoff and a cruise distance under defined conditions, how much AvGas is required?

To determine the required amount of AvGas for a flight, several factors must be taken into account, including the aircraft's fuel consumption rate, the distance to be flown, and the specific flight conditions such as altitude and weight.

The fact that 84 gallons is selected as the answer indicates that this figure likely takes into consideration a standard fuel consumption rate averaged over the takeoff, climb, cruise, and descent phases of flight, as well as any reserves necessary for unexpected scenarios such as holding or diversions.

In many flight planning scenarios, a minimum reserve of fuel is typically added to account for the possibility of needing extra fuel beyond what is calculated for the cruise distance. This reserve helps ensure safety and compliance with regulations that require a specific amount of fuel to be available upon arrival.

Understanding the aircraft's specific fuel consumption parameters and the operational conditions helps ensure accurate fuel planning, which is crucial for both safety and efficiency in flight operations. Therefore, 84 gallons represents a calculated amount that appropriately addresses the various stages and requirements of the flight based on the provided conditions.