Definition
Flight conducted with one or more primary flight instruments inoperative or unreliable, requiring the pilot to control the aircraft using the remaining functional instruments. Most commonly refers to flying without the attitude indicator and/or heading indicator, relying instead on the airspeed indicator, altimeter, vertical speed indicator, turn coordinator, and magnetic compass.
Plain English
Flying when some of your cockpit instruments have failed, so you have to fly safely using only the ones that still work.
Context Anchor
Seen in instrument training, emergency practice, and human factors discussions about task saturation because losing instruments can sharply increase pilot workload.
Derivation
Partial means 'incomplete' and panel refers to the instrument panel — the array of gauges in front of the pilot. So 'partial panel' literally means flying with only part of the instrument panel available.
Why Pilots Care
Partial panel flight sharply increases pilot workload and demands precise, deliberate control inputs; failure to adapt technique quickly can lead to loss of control or spatial disorientation.
Grounding Statement
The key idea is that the airplane may still be flyable, but the pilot has fewer trustworthy clues than usual.
Intuition Check
Do not read “partial panel” as damage to the physical panel itself. It means some of the normal flight instrument information is missing, covered, failed, or unreliable.
Example Sentence 1
During the checkride, the examiner covered the attitude indicator and had the student fly partial panel for the rest of the approach.
Example Sentence 2
In partial panel flight the pilot timed standard-rate turns using the turn coordinator and cross-checked the altimeter to maintain altitude.