What does the fixed fuel reserve indicate?

The fixed fuel reserve refers to the amount of fuel that must be left in the fuel tanks upon landing, ensuring that the aircraft has a safety margin in case of unforeseen circumstances such as delays or increased fuel consumption during the flight. It serves as a safeguard to prevent running out of fuel due to variables that may arise during the flight, such as unexpected weather conditions or changes in flight plans.

This reserve is essential for flight safety, and regulations often dictate a minimum quantity to be retained, which must be accounted for in the flight planning process. It helps ensure that pilots are mindful of fuel management throughout the flight, contributing to overall operational safety.