Question

What is the Inner Marker (IM) characteristics: istance, height, color and ID

A) Distance: 1,000-1,400 ft, Color: Blue, ID: Dash-dot
B) Distance: 1,400-1,800 ft, Color: White, ID: Dash-dot-dash
C) Distance: 1,800-2,200 ft, Color: Yellow, ID: Dash
D) Distance: 2,200-2,600 ft, Color: Red, ID: Dot-dash

Answer 1

The Inner Marker (IM) is positioned 1,000-1,400 feet from the runway threshold, has a blue light indicator, and transmits a dash-dot Morse code signal for identification purposes.

Step-by-step explanation:

The Inner Marker (IM) is one of the markers used in an Instrument Landing System (ILS), which guides aircraft during the final approach to landing. The characteristic features of an Inner Marker include its distance from the runway threshold, color of its light indicator, and the specific ID (identification) signal it transmits. The correct characteristics of the IM are as follows: the distance is typically between 1,000-1,400 feet from the runway threshold, the color of the marker beacon light is blue, and the identification signal broadcasted is a dash-dot audible Morse code sequence. These specifics ensure that pilots can identify the IM as they complete their approach for landing.