Definition
A specific reference point along a power-off accuracy approach — typically abeam the intended touchdown point on the downwind leg — from which the pilot judges altitude, distance, and wind to plan the remainder of the approach to a precise landing spot without using power.
Plain English
A chosen spot in the traffic pattern, usually beside your aiming point on downwind, where you check your height and position so you can glide the rest of the way to land exactly where you want — no engine power needed.
Context Anchor
Used during power-off accuracy approaches, especially when practicing judging the glide from downwind, base, or final toward a selected touchdown point.
Derivation
‘Key’ comes from the idea of a key position in a plan — the critical spot everything else hinges on. Like a keystone in an arch, the rest of the approach is built around getting this point right.
Why Pilots Care
It is the reference point used to judge whether altitude and position allow a safe glide to the runway without power, directly affecting landing accuracy and emergency decision-making.
Intuition Check
A key position is not a switch, a checklist item, or a single fixed place that is identical for every airplane. It is an important reference point used to judge whether the airplane can glide safely to the selected landing area.
Example Sentence 1
At the key position, the instructor pulled the throttle to idle and asked the student to glide the airplane to a landing on the marked spot.
Example Sentence 2
Reaching the key position too high requires a slip to lose altitude while still making the intended landing spot.