Navigation is not predicated on the use of which system?

Navigation is not predicated on the use of which system?

• A. Global Positioning System
• B. Terrain Awareness System
• C. Inertial Navigation
• D. VOR

Answer: (B)

Navigation is built on systems that provide a reliable position fix or course guidance, such as GPS, VOR, and inertial navigation. GPS gives precise position from satellites, VOR provides radio-based steering references, and inertial navigation uses onboard sensors to track movement and compute position even without external signals. The Terrain Awareness System, however, is a safety feature that uses a terrain database to warn about surrounding terrain and obstacles. It does not determine your position or guide you along a route, so it isn’t used as the basis for navigation.

Navigation is built on systems that provide a reliable position fix or course guidance, such as GPS, VOR, and inertial navigation. GPS gives precise position from satellites, VOR provides radio-based steering references, and inertial navigation uses onboard sensors to track movement and compute position even without external signals. The Terrain Awareness System, however, is a safety feature that uses a terrain database to warn about surrounding terrain and obstacles. It does not determine your position or guide you along a route, so it isn’t used as the basis for navigation.