What color indicates the middle marker in an IFR approach?

The middle marker in an IFR approach is indicated by an amber color. This specific color designation plays a critical role in navigation during an ILS (Instrument Landing System) approach.

The markers along the approach path help pilots identify their position in relation to the runway. The outer marker is typically identified by a blue light, indicating the transition point to the final approach, while the middle marker, which signifies the point approximately 3,500 feet from the runway threshold, is colored amber. This distinction is essential for pilots to understand their proximity to the runway and assists in maintaining situational awareness during landing phases.

The identification of the middle marker by its amber color is also standardized in aviation navigation to ensure consistency across different airports and flight operations, providing a reliable reference for pilots as they descend toward landing.