Definition
Informal name for the sequenced flashing lights installed along the approach lighting system of a runway. These high-intensity white lights flash in rapid sequence from the far end of the approach lights toward the runway threshold, creating a visible streak of light that guides the pilot's eye to the runway during an instrument approach.
Plain English
A line of bright white lights that flash one after another in quick succession, pointing the way to the runway. The flashing pattern looks like a ball of light running toward the runway, which is how it got its nickname.
Context Anchor
Seen on some instrument approaches and night approaches as part of the approach lights leading to the runway.
Derivation
Called 'the rabbit' because the rapid sequential flashing makes it look like a single point of light hopping or running along the ground toward the runway -- like a rabbit darting ahead of you.
Why Pilots Care
Supplies immediate visual runway alignment guidance during low-visibility approaches, helping prevent misalignment or disorientation near the threshold.
Intuition Check
Rabbit does not mean an animal here. In this context, it means the runway approach lights that flash in sequence and appear to move toward the runway.
Example Sentence 1
Breaking out at minimums, the captain called 'rabbit in sight' and continued the approach to landing.
Example Sentence 2
The pilot used the rabbit in the approach lights to confirm alignment before descending below the decision altitude.