What is diversion fuel?

Diversion fuel refers specifically to the amount of fuel that is required for a flight to reach an alternate airport once a diversion has been decided. It encompasses the fuel necessary from the point of diversion to touchdown at the alternate airport. This consideration is critical for flight planning as it ensures that there is enough fuel to safely land at the alternate in the event that the original destination becomes unapproachable.

The other options do not accurately define diversion fuel. The first option describes total fuel usage during the flight and does not focus on the diversion aspect. The choice related to ground operations emphasizes fuel use while on the ground rather than during flight. Finally, while reserved fuel for emergencies is essential, it typically refers to additional fuel set aside for contingencies, not specifically to the fuel needed for a diversion scenario. Understanding the role of diversion fuel is vital for safe flight operations and adherence to regulations regarding fuel reserves.