What minimum flight visibility does Part 107 require, as seen from the control station?

3 statute miles.

  1. 1 statute mile
  2. 5 statute miles
  3. 3 statute miles ✔

Why: Flight visibility observed from the control station must be at least 3 statute miles. If haze, fog or smoke cuts it below that, the flight cannot go.

Huh, didn't know that: Part 107 defines flight visibility as the average slant distance at which prominent objects can be seen and identified.

The dad joke
I asked my drone why it would not fly in the fog. It said it just could not see the point.
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Sources

  1. 14 CFR 107.51 Operating limitations (eCFR) https://www.ecfr.gov/current/title-14/section-107.51

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