FAA figures/8080-3F/Figure 61

Figure 61: CDI indicator

FAA-CT-8080-3F · Instrument Rating supplement · asked on the Instrument Rating test

FAA Figure 61CDI indicatorFAA-CT-8080-3F · Instrument Rating supplement
How to read it: The vertical needle is the localizer, the horizontal needle the glide slope. Fly toward the needle: needle left = course is to your left; needle up = you are below the glide slope.

1 FAA question that refer to this figure

  1. Question 1 · Instrument Rating

    (Refer to FAA-CT-8080-3F, Figures 61.) Determine your position relative to the glide slope and localizer course.

    • A.Below the glide slope and right of the localizer course.
    • B.Above the glide slope and left of the localizer course.
    • C.Above the glide slope and right of the localizer course.
    Show answer and explanation

    Correct: C. Above the glide slope and right of the localizer course.

    Figure 61 shows a localizer frequency (109.9) with the vertical localizer needle deflected left of center and the horizontal glideslope needle below center. ILS needles point toward the course: the course is to the left, so the aircraft is right of the localizer, and the glideslope is below, so the aircraft is above the glide slope (IFH Ch. 9).

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