What is the definition of "bingo fuel" in aviation?

Bingo fuel is defined as the specific amount of fuel that a pilot needs to safely reach a designated landing location. This term is critical for ensuring that the aircraft can arrive at an alternate airport or return to base while maintaining a margin of safety. Knowing bingo fuel helps pilots make informed decisions during flight operations, especially in scenarios where fuel consumption may be higher than anticipated or if diversions are required due to weather or other factors.

This definition emphasizes the importance of preparing for various contingencies in a flight plan. When pilots calculate bingo fuel, they include considerations such as current fuel levels, expected fuel burn, and any potential delays in reaching the destination, ensuring they have enough reserve for a safe landing.

In contrast, the other options do not accurately capture the essence of what bingo fuel signifies. For instance, the concept of minimum fuel required for a safe landing is a broader term that does not specifically involve a designated destination, and the fuel quantity needed at the flying operations area pertains more to operational planning rather than a specific landing scenario. The amount of fuel needed to fly for an additional hour does not intend to consider alternate landing sites or emergency procedures, which are crucial aspects of aviation safety and operational efficiency.