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Vòng khoảng cách la gi?

Vòng khoảng cách Circular overlays on a navigation display or chart, spaced at regular intervals from a reference point or airport, used for situational awareness and range estimation.

Source: ICAO Doc 9432, FAA PCG

How is “Vòng khoảng cách” Used in Practice?

Hiển thị các vòng khoảng cách trên màn hình điều hướng để hỗ trợ kiểm tra tầm và khoảng cách giao thông.

Certification Exam Relevance

ICAO Level 4ICAO Level 5ICAO Level 6EASA FCL.055

Who Needs to Know This Term?

  • Pilots
  • Air Traffic Controllers
  • Cabin Crew

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Frequently Asked Questions

Vòng khoảng cách la gi?

Circular overlays on a navigation display or chart, spaced at regular intervals from a reference point or airport, used for situational awareness and range estimation.

Where can I learn this term for free?

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