middle marker (English, noun)
expansion: middle marker (plural middle markers)
Senses:
topics: aeronautics
aerospace
aviation
business
engineering
natural-sciences
physical-sciences
glosses: A type of marker beacon placed to indicate the missed approach point of a Category I ILS or IGS approach (typically the point at which the glideslope descends through 200 feet AGL), triggering a continuous visual and aural sequence of alternating Morse code dots and dashes from the marker beacon receiver in the cockpit of an aircraft flying over the marker.
Forms:
form: middle markers
tags: plural