....FAA q and a..... seems accurate for me... (sarcasm).
Q. How high is 400 feet?
A. Typical buildings have floors that are 12-14 feet high. A 30-40 story building would be about 400 feet high. If you lose sight of your unmanned aircraft, it is probably above 400 feet.
This was recently discussed here. Be sure and check the search or look at the suggested post at the bottom as you are crafting yours.
Thread closed. Please comment further here - FAA Registration Rules Announced NOW | DJI Phantom Forum
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