I just went out for a short flight. I wanted to see how far out I could actually 'see' the Mini. Not a cloud in the sky, bright sunshine. at approx. 75 feet up I could still see the drone out to 1200 feet away.Will be interesting doing the same in cloudy conditions and when I receive my strobe which is supposed to be today.
The 107.31 definition of VLOS includes more than just being able to see it:
§107.31 Visual line of sight aircraft operation.
(a) With vision that is unaided by any device other than corrective lenses, the remote pilot in command, the visual observer (if one is used), and the person manipulating the flight control of the small unmanned aircraft system must be able to see the unmanned aircraft throughout the entire flight in order to:
(1) Know the unmanned aircraft's location;
(2) Determine the unmanned aircraft's attitude, altitude, and direction of flight;
(3) Observe the airspace for other air traffic or hazards; and
(4) Determine that the unmanned aircraft does not endanger the life or property of another.
While for the most part, unless something bad happens, I suspect that being able to see the aircraft may be good enough, the other requirements are worth keeping in mind.