non-precision approach en · NOUN
Meanings
- An instrument approach using a guidance system that provides only horizontal, and not vertical, guidance (such as VOR, NDB, or localizer navigation), requiring the pilot to manually maintain terrain clearance by flying at a predefined safe altitude for each segment of the approach by reference to their altimeter.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| nonprecision approach | alternative | lexicographic | |
| non-precision approaches | Number=Plur | lexicographic |