What is the key difference between VFR and IFR flying?

The key difference between VFR (Visual Flight Rules) and IFR (Instrument Flight Rules) is that VFR allows pilots to navigate visually by referring to landmarks, terrain, and other visible cues, while IFR requires pilots to rely on instruments for navigation, particularly in conditions where visual cues are insufficient, such as in clouds or at night.

VFR flights can be performed in clear weather where pilots can see and avoid obstacles and other aircraft. In contrast, IFR is designed for flying in low visibility conditions, where pilots cannot depend on visual references outside the cockpit. This distinction is critical as it determines the flight rules, equipment required, and the level of training necessary for pilots operating under each set of regulations.

The other options do not accurately reflect the core distinction between VFR and IFR. For instance, autopilot usage is not a defining characteristic of either VFR or IFR flying; pilots may choose to use autopilot in both conditions as their capabilities allow. Additionally, VFR does not have altitude constraints like being exclusively above 10,000 feet; flight can occur at various altitudes depending on airspace designation. Furthermore, while IFR typically requires a flight plan to be filed, VFR does not have this requirement, making the key difference highlighted