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Compass deviation is corrected using what source?

Choices

  • ✓ The aircraft compass correction cardcorrect

    Deviation is aircraft-specific and read from the compass correction card.

  • Isogonic lines on the sectional chart

    Isogonic lines show variation, not deviation.

  • The winds aloft forecast

    Winds aloft affect the wind correction angle, not deviation.

  • The altimeter setting

    The altimeter setting has nothing to do with compass deviation.

Why

Deviation is caused by the aircraft’s own magnetic fields and is corrected using the compass correction card specific to that airplane.

FAA source: PHAK Ch. 16 / true course to compass headingbrowse the reference library →

This is taught in Building the Route: Checkpoints and Navigation Methods — study the lessons free, then practice with grading and mastery tracking.

Original study question written for this course — representative of FAA knowledge-test topics, not an actual current FAA exam question.

Compass deviation is corrected using what source? · PPL Free Ground School