Definition
An area on the ground that cannot be seen from a specific position, typically due to terrain, structures, or curvature of the earth, resulting in loss of radio or radar coverage, or loss of visual contact with traffic, runway features, or other aircraft.
Plain English
A spot you can't see — or can't reach with a signal — from where you're sitting. The view or signal is blocked by something in the way.
Context Anchor
Seen in aviation communication discussions, especially when terrain, distance, or coverage limits affect whether a radio call can be received.
Derivation
Plain English compound. 'Blind' meaning unable to see, and 'spot' meaning a specific location — together, a place where seeing (or detecting) is not possible.
Why Pilots Care
Unaccounted blind spots increase the risk of ground collisions or mid-air conflicts with traffic that remains hidden from view.
Intuition Check
Do not assume this means the visual blind spot in a pilot’s eyesight or behind the airplane. In this AIM glossary use, it means a radio-reception blind spot: a place where the signal cannot be received.
Example Sentence 1
The tower controller reminded the pilot that the run-up area was in a blind spot from the tower cab, so they would not be visible until taxiing onto the parallel taxiway.
Example Sentence 2
While taxiing, the instructor reminded the student to lean forward and look under the cowling to clear the forward blind spot.