Direction: true, magnetic and compass
8 min read
Three norths
True north: towards the geographic pole.
Magnetic north: the direction of the horizontal part of the earth's magnetic field (the magnetic meridian). The angle between them is the variation (declination), shown by isogonals; the agonic line joins places with no variation.
Compass north: the magnetic compass in the aircraft is also pulled by the aircraft's own magnetism: deviation, listed on a deviation card.
IN THIS LESSON
- Converting
- The magnetic compass
Read the whole lesson with FL340 Pro.
ATPL theory course by course: short lessons written from the EASA Learning Objectives, with questions that explain the answer. Free with an account.