High wing aircraft always require a fuel pump.

• A. True
• B. It depends on engine type
• C. Only with gravity feed
• D. False

Answer: (D)

Fuel delivery can be gravity-fed or pressure-fed by a pump. Being a high-wing airplane means the fuel tanks are above the engine, which can allow gravity to help move fuel to the engine, but that doesn’t automatically eliminate or require a pump. The need for a fuel pump depends on the engine type and how the fuel system is designed—some arrangements rely mainly on gravity feed, while others use an electric or engine-driven pump to ensure reliable pressure, priming, and performance during various maneuvers or power settings. In practice, many high-wing airplanes still include a boost pump to guarantee consistent fuel pressure, especially during starting and high-demand conditions, but others can operate with gravity feed alone. So the statement that high-wing aircraft always require a fuel pump isn’t correct.