Which statement about cockpit lighting for night flight is correct?

Prepare for the Instrument Ground IRA Test with our comprehensive quiz. Study using essential regulations and procedures, with hints and explanations provided for each question. Ensure your readiness for the Instrument Rating exam today!

The statement indicating that the use of regular white light will impair night adaptation is correct. In aviation, particularly during night flights, it is crucial for pilots to maintain their night vision to ensure they can navigate and control the aircraft safely. Regular white light is known to significantly disrupt the eyes' ability to adapt to low-light conditions because it causes temporary blindness or glare that can take time to recover from. This impairment can hinder a pilot's ability to see outside the cockpit or to be aware of other aircraft and environmental factors.

In contrast, the use of colored lighting, such as red light, is often recommended because it helps preserve night vision. Red light does not overwhelm the photoreceptors responsible for low-light vision, which allows pilots to remain acclimated to darkness while still being able to read instruments and charts.

Other options present statements that do not reflect the principles of cockpit lighting effectively. Reducing lighting intensity might help reduce glare but won't eliminate blind spots entirely. Maps can indeed be affected by the use of direct red lighting, although they are better suited for red light than white light, making that statement less accurate. Lastly, while colored lighting can aid visibility, blue lighting specifically does not have an advantage for viewing instruments compared to red lighting, as red is

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