Definition
A controlled, deliberate maneuver in which the pilot loses altitude as quickly as safely possible to remove the airplane from a hazardous situation, such as an onboard fire, smoke in the cockpit, depressurization, or a serious medical emergency. The descent is flown within the airplane's structural and operating limits, typically using reduced power, increased drag (such as gear or flaps where appropriate), and a steep but stable flight path.
Plain English
Getting the airplane down fast on purpose, but still under full control, because something on board needs you on the ground right now.
Context Anchor
Used in emergency descent discussions, such as getting down quickly because of smoke, fire, a cabin pressure problem, or another condition that makes staying at altitude unsafe.
Why Pilots Care
Enables the pilot to reach a safe altitude or landing site quickly while avoiding excessive speed or loss of control.
Intuition Check
Do not read rapid descent as simply “pointing the nose down.” In aviation, it means losing altitude quickly while still managing speed, airplane limits, and control.
Example Sentence 1
When smoke filled the cockpit, the pilot declared an emergency and began a rapid descent toward the nearest airport.
Example Sentence 2
The training exercise required a rapid descent from cruise altitude using the recommended configuration and power settings.