What is the minimum fuel requirement for single runway operations?

In the context of aviation regulations concerning minimum fuel requirements for single runway operations, the correct answer is 350 pounds. This figure is based on safety standards that ensure sufficient fuel is available for various operational needs, including takeoff, landing, and any potential go-around situations.

When operating from a single runway, the fuel reserve must account for prevailing operational conditions, such as wind, aircraft weight, and required safety margins. The regulation dictates this minimum amount to ensure that aircraft can effectively manage unexpected events during landing or takeoff procedures. The 350-pound requirement is designed to provide a safety buffer while also being realistic for the operational capabilities of the aircraft involved.

The other values listed either do not meet regulatory standards, or do not reflect a practical operation scenario for a single runway operation.