What color is the signal emitted by the Outer Marker in an ILS approach?

What color is the signal emitted by the Outer Marker in an ILS approach?

• A. Red
• B. Amber
• C. Blue
• D. White

Answer: (C)

The signal emitted by the Outer Marker in an Instrument Landing System (ILS) approach is blue. This color coding is consistent across many aviation instruments. The Outer Marker specifically indicates that the aircraft is at a significant distance from the runway (typically 4 to 7 miles away) and is a key part of the approach procedure. The blue color helps pilots easily identify the signal and understand their position in relation to the final approach course. Moreover, the Outer Marker provides crucial information that aids in decision-making as the pilot approaches the runway. Understanding the color coding of aviation signals is important for maintaining situational awareness and ensuring the safe navigation of an aircraft during critical phases of flight.

The signal emitted by the Outer Marker in an Instrument Landing System (ILS) approach is blue. This color coding is consistent across many aviation instruments. The Outer Marker specifically indicates that the aircraft is at a significant distance from the runway (typically 4 to 7 miles away) and is a key part of the approach procedure.

The blue color helps pilots easily identify the signal and understand their position in relation to the final approach course. Moreover, the Outer Marker provides crucial information that aids in decision-making as the pilot approaches the runway. Understanding the color coding of aviation signals is important for maintaining situational awareness and ensuring the safe navigation of an aircraft during critical phases of flight.