What effect can rain on the windshield have during an approach?

What effect can rain on the windshield have during an approach?

• A. It can cause a visual illusion of a higher runway
• B. It prevents visibility of the runway
• C. It causes the aircraft to appear farther away
• D. It enhances the visibility of runway markings

Answer: (A)

When rain is present on the windshield during an approach, it can create a visual illusion that the runway appears to be at a higher elevation than it actually is. This phenomenon can occur because the accumulation of water distorts the view and alters the perception of the horizon and ground reference points. Pilots may misjudge their altitude and distance from the runway, which can affect their approach profile and landing technique, as they might believe they are closer to the ground than they truly are. Understanding this illusion is crucial for safe operations, as it emphasizes the necessity for pilots to rely on their instruments when visibility conditions are compromised, rather than depending solely on visual cues.

When rain is present on the windshield during an approach, it can create a visual illusion that the runway appears to be at a higher elevation than it actually is. This phenomenon can occur because the accumulation of water distorts the view and alters the perception of the horizon and ground reference points. Pilots may misjudge their altitude and distance from the runway, which can affect their approach profile and landing technique, as they might believe they are closer to the ground than they truly are.

Understanding this illusion is crucial for safe operations, as it emphasizes the necessity for pilots to rely on their instruments when visibility conditions are compromised, rather than depending solely on visual cues.