Explain the difference between true north (TN) and magnetic north (MN).

Explanation should include the following:

• Variation is the angle between TN and MN. It is expressed as east variation or west variation depending on whether MN is to the east or west of TN.
• The north magnetic pole is located close to latitude 71°, longitude 96° west and is about 1,300 miles from the geographic or true north pole.

PLT320

Process/Skill Questions: 

• Why is it important for a pilot to understand the difference between TN and MN?