Definition
An instrument scan performed too rapidly, in which the pilot moves their eyes from instrument to instrument faster than they can actually interpret the information displayed. The result is a scan that covers all the instruments but absorbs little useful data, leading to incorrect or delayed control inputs.
Plain English
Looking at your instruments too fast to actually read them. Your eyes are moving across the panel, but your brain isn't keeping up with what each instrument is telling you.
Context Anchor
Used in instrument flying, especially during climbs, descents, and transitions between level flight and climbing or descending flight.
Derivation
"Accelerated" comes from Latin accelerare, meaning to speed up or hasten. In this context it doesn't mean improved or more efficient — it means rushed past the point of usefulness.
Why Pilots Care
Prevents instrument fixation and allows timely corrections to altitude, airspeed, or heading before they become significant.
Intuition Check
Accelerated does not mean rushing or skipping instruments. It means checking the right instruments more frequently while the airplane is changing attitude, speed, or altitude.
Example Sentence 1
The instructor noticed the student was using an accelerated cross-check, sweeping the panel quickly but missing a 100-foot altitude deviation.
Example Sentence 2
An accelerated cross-check helped the student notice the slight descent before the altimeter showed a major change.