What is the minimum fuel reserve requirement for day VFR flight?

The minimum fuel reserve requirement for day VFR (Visual Flight Rules) flight is indeed 30 minutes of reserve fuel. This regulation is designed to ensure that pilots have enough fuel to safely handle unforeseen circumstances, such as changes in weather or air traffic conditions that may require additional time in the air. In practical terms, having this reserve fuel can provide a safety buffer that allows the pilot to reach an alternate landing site or return to the departure airport if necessary.

The requirement was established considering realistic operation times under normal flying conditions, where 30 minutes of fuel is typically sufficient to account for contingencies that may arise during a flight. This is particularly important during daytime flights where visibility is generally good, but surprises can still occur. Ensuring that an aircraft has this minimum reserve contributes to overall safety and operational reliability in aviation.