What is "bingo fuel" used to indicate?

"Bingo fuel" refers to a pre-briefed fuel amount that is designated for returning to the intended landing site or location. This fuel level is critical in flight operations, as it ensures that the aircraft has enough fuel to safely return without risking running out during the flight. The concept is established during mission planning to provide pilots with a clear and actionable threshold, enhancing safety by ensuring that they can land with an adequate fuel reserve.

This pre-determined amount of fuel takes into account various factors, including distance to the landing site, anticipated fuel consumption rates, and contingencies for unexpected events. By adhering to the bingo fuel limit, pilots can maintain a systematic approach to fuel management, ensuring they have enough reserve for safe operations while minimizing the likelihood of fuel-related emergencies.