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SESK: Stuff Everyone Should Know · sesk.info/ifr-vor-cdi-dot

On a VOR indicator, how many degrees off course does each dot on the scale represent?

Each dot is 2 degrees off course.

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  1. 1 degree
  2. 2 degrees ✔
  3. 5 degrees

Why: A VOR needle is very sensitive. The outer edge of the center circle is 2 degrees off course, and each dot adds another 2 degrees. A few dots of deflection already means you are well away from the radial.

Huh, didn't know that: The TO/FROM indicator shows whether the selected course takes you to or from the station, not which way the airplane is pointing.

The dad joke
Why did the VOR needle get a job as a mood ring? It swings with every little change.
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References

Answer: 2 degrees. A VOR needle is very sensitive. The outer edge of the center circle is 2 degrees off course, and each dot adds another 2 degrees. A few dots of deflection already means you are well away from the radial.

  1. FAA Instrument Flying Handbook (FAA-H-8083-15B) www.faa.gov/sites/faa.gov/files/pilots/FAA-H-8083-15B.pdf
    The outer edge of the center circle is 2° off course; with each dot representing an additional 2°.
    Checked 2026-10-10.
  2. FAA Aeronautical Information Manual 1-1 Navigation Aids www.faa.gov/air_traffic/publications/atpubs/aim_html/chap1_section_1.html
    VORs operate within the 108.0 to 117.95 MHz frequency band
    Checked 2026-10-10.

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