Aviation Training Experts™

Aviation Dictionary

Reference circle (also, distance circle)

The circle depicted in the plan view of an IAP chart that typically has a 10 NM radius, within which chart the elements are drawn to scale.

Dictionary Term

Reference circle (also, distance circle)

Definition

  • The circle depicted in the plan view of an IAP chart that typically has a 10 NM radius, within which chart the elements are drawn to scale.

References

  • Pilot's Handbook of Aeronautical Knowledge, Federal Aviation Administration, 2023