Definition
A controlled flight condition in which the aircraft is losing altitude in a deliberate, managed manner, typically achieved by reducing power, lowering the nose, or a combination of both, while maintaining a chosen airspeed and rate of descent.
Plain English
Flying the aircraft downward on purpose, in a controlled way, to lose altitude.
Context Anchor
Seen in instrument flying when planning, entering, and controlling descents to assigned altitudes or toward an approach.
Derivation
From the Latin descendere, meaning 'to climb down.' The aviation use keeps that literal sense — the aircraft is moving downward through the air — and adds the requirement that it be done under pilot control.
Why Pilots Care
Correct descending flight technique prevents overspeed, ensures timely arrival at assigned altitudes, and maintains aircraft stability.
Grounding Statement
In descending flight, the aircraft is still flying and being supported by lift; it is just following a controlled downward path.
Intuition Check
Do not assume descending flight means the airplane is diving or falling. In normal descending flight, the airplane remains under control and may only need a small pitch or power change while altitude decreases.
Example Sentence 1
After being cleared to 6,000 feet, the pilot reduced power and established the aircraft in a stable descending flight at 500 feet per minute.
Example Sentence 2
In instrument conditions the pilot maintained descending flight by referencing the vertical speed indicator and attitude indicator.