Match each aviation navigation term to its correct definition:
Terms:
1. True course
2. Magnetic course
3. Compass heading
4. Wind correction angle
Definitions:
A. Intended direction of flight measured relative to true north
B. Intended direction of flight measured relative to magnetic north
C. Direction indicated by the aircraft's magnetic compass
D. Angular difference between true course and true heading to counteract drift
Answer
1-A, 2-B, 3-C, 4-D
Explanation
These terms differ by their reference north or by whether they describe the aircraft's ground route or nose direction. True course is referenced to true north, magnetic course to magnetic north, and compass heading is the instrument indication. WCA is the difference between the desired true course and the true heading required to fly it.\n\n**Key takeaway:** Always identify the reference north before applying a direction.\n\n**Glossary:** **Course**: ground-track direction; **heading**: aircraft pointing direction.