Pilots have the ability to navigate via which navigation aid and to fly which instrument approaches?

• A. VOR; VOR and ILS
• B. GPS; VOR and TACAN
• C. GPS; VOR and NDB
• D. TACAN; TACAN and ILS

Answer: (A)

VOR is a ground-based navigation aid that provides azimuth information to help you determine and maintain a course. Because VOR delivers precise bearing guidance, pilots can follow published procedures that rely on VOR signals, such as VOR approaches. An ILS approach, while using its own localizer and glideslope signals for the final landing, is another common instrument procedure that pilots can fly after or in conjunction with VOR navigation—many flight paths are planned from a VOR reference to the ILS final approach.

So, navigating with a VOR and then performing VOR approaches or an ILS approach aligns with how IFR procedures are structured around that nav aid. The other options mix nav systems with approaches in a way that doesn’t match how these procedures are typically used together.