Plain English Meaning
A small table or graph from your aircraft's handbook that tells you what the real airspeed is when your airspeed indicator shows a particular number. The needle on the gauge is rarely perfectly accurate, so this chart shows you the correction.
Full Definition
A chart, supplied in the Pilot's Operating Handbook, that shows the difference between the airspeed indicator's reading (indicated airspeed) and the actual calibrated airspeed at various flap and configuration settings. It allows the pilot to correct for installation and instrument error in the airspeed indicating system.
Context Anchor
Seen in the ’s operating handbook when comparing indicated airspeed with calibrated airspeed, especially during , , , or calculations.