Ch 4 Navigation AIDS

Question 1

Normal Localizer Signal Coverage

Answer 1

• 10 NM to 35 degrees

- 18 NM to 10 degrees

Question 2

Localizer Type Directional Aid (LDA)

Answer 2

TERPS requires the Localizer (LOC) signal alignment within 3° of the runway alignment. If the alignment exceeds 3°, the LOC will be identified as an LDA. Once designated as an LDA, the maximum angle of convergence of the final approach course and the extended runway centerline is 30°.