What is the contingency reserve fuel requirement for air transport turbine flights?

The contingency reserve fuel requirement for air transport turbine flights is set to ensure that aircraft have enough fuel to safely manage unexpected situations such as diversions, holding, and other unforeseen circumstances that may arise during a flight. The correct requirement is typically defined as having 5% of the total trip fuel on board, but importantly, it must also not be less than a minimum of 5 minutes of flight time under normal operating conditions.

This stipulation allows for a buffer that can help pilots make decisions in dynamic flight situations, including weather changes or air traffic control instructions that might require holding or diverting to an alternate airport. Having this reserve can be crucial for flight safety and operational efficiency, enabling crews to respond to challenges without the immediate pressure of fuel limitations.

The other options present different percentages or minimum time requirements that do not align with standard regulations. Therefore, focusing on the correct value, which balances fuel efficiency with safety considerations, is essential for compliance with operational guidelines in aviation.