What does the term "fuel reserve" refer to?

The term "fuel reserve" specifically refers to the minimum amount of fuel that must be available at the end of a flight. This concept is crucial for ensuring safety and operational integrity during a flight, as it accounts for unforeseen circumstances such as delays, diversions, or the need to hold before landing. By maintaining a fuel reserve, pilots can ensure that they have enough fuel to safely complete a journey even in unexpected situations.

This requirement enhances flight safety, as it minimizes the risk of running out of fuel, which can lead to emergencies. Regulations often dictate the specific fuel reserve requirements to ensure that pilots maintain this safety margin in their operational planning. The fuel reserve is not about the maximum load, the fuel consumed during takeoff, or the fuel needed for cruising speed; those aspects pertain to different areas of flight operation and planning. Maintaining a proper fuel reserve is a critical component of responsible flight operations and adherence to aviation regulations.