A standard instrument approach procedure in which no electronic glideslope is provided; e.g., VOR, TACAN, NDB, LOC, ASR, LDA, or SDF approaches.
Source FAA Pilot/Controller Glossary · checked 2026-08-25
A standard instrument approach procedure in which no electronic glideslope is provided; e.g., VOR, TACAN, NDB, LOC, ASR, LDA, or SDF approaches.
Source FAA Pilot/Controller Glossary · checked 2026-08-25