EASA NAV(A)intermediate
Match each navigation method or system to its primary function: Navigation Methods/Systems: 1. Global Positioning System (GPS) 2. VHF Omnidirectional Range (VOR) 3. Pilotage 4. Dead Reckoning Functions: A. Ground-based radio navigation station providing magnetic bearing radials B. Navigating strictly by visual observation of checkpoints and ground landmarks C. Projecting position using a known starting point, heading, groundspeed, and elapsed time D. Satellite constellation providing accurate three-dimensional coordinates and time
Answer
1 - D, 2 - A, 3 - B, 4 - C
Explanation
Each method provides a different kind of positional or directional reference. Terrestrial navigation depends on visible features, while GPS and VOR use electronic systems. **Key takeaway:** Combine suitable navigation methods and verify position. **Glossary:** VOR: VHF omnidirectional range; GPS: Global Positioning System.
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