sUAS Vocabulary: When operation of an aircraft under the Visual Flight Rules (VFR) is not safe or legal because the visual cues outside the aircraft are obscured by weather or darkness, instrument flight rules must be used instead.

Question

When operation of an aircraft under the Visual Flight Rules (VFR) is not safe or legal because the visual cues outside the aircraft are obscured by weather or darkness, instrument flight rules must be used instead.

Edward Reed · Accepted Answer

Instrument Flight Rules (IFR)

sUAS Vocabulary

When operation of an aircraft under the Visual Flight Rules (VFR) is not safe or legal because the visual cues outside the aircraft are obscured by weather or darkness, instrument flight rules must be used instead.

Instrument Flight Rules (IFR)

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