Definition
The first 3,000 feet of the runway beginning at the threshold, used as the target area where the main wheels should first contact the runway during a normal landing.
Plain English
The part of the runway near the start where you are supposed to land. It is the first 3,000 feet after the runway begins.
Context Anchor
Seen in instrument approach and ILS glideslope discussions, especially when describing where the guided descent path leads near the runway.
Why Pilots Care
Landing in this zone leaves enough runway ahead for a safe stop and matches the aim point used by instrument procedures.
Grounding Statement
Picture the airplane crossing the runway threshold and aiming to settle onto the first marked landing area, not halfway down the runway.
Intuition Check
Do not read this as any place where the wheels happen to touch down. In aviation use, the runway touchdown zone is a specific beginning section of the runway intended for landing contact.
Example Sentence 1
The ILS glideslope is set so that following it down brings the aircraft to the runway touchdown zone.
Example Sentence 2
Touching down past the runway touchdown zone markers leaves less distance to stop safely.