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The visual line-of-sight requirement of 107.31 means that throughout the flight, the remote PIC, the visual observer (if one is used), and the person manipulating the controls must be able to
- A.watch the live camera feed from the aircraft at all times
- B.see the aircraft through binoculars whenever it is beyond unaided view
- C.see the unmanned aircraft with vision unaided by any device other than corrective lenses
Correct answer
C. see the unmanned aircraft with vision unaided by any device other than corrective lenses
Why
Section 107.31 requires the ability to see the unmanned aircraft throughout the entire flight with vision unaided by any device other than corrective lenses, so the crew knows its location, attitude, altitude, and direction. A camera feed and binoculars can supplement awareness but cannot replace unaided visual line of sight.
Source: 14 CFR 107.31 · ACS knowledge area: Applicable Regulations · From the Regulations & Registration practice bank (REG-100).