a marker beacon used in conjunction with an ILS (instrument landing system) and located between the middle marker and the threshold of the runway where an ILS approach is being made
marker, mis asub maandumisraja alguses (lävel), marker that locate at the beginning (threshold) of the runway
IM . Lennunduse terminibaas. Eesti Keele Instituut, Sõnaveeb 2026. https://127.0.0.1:5577/search/unif//len/IM/1/est (09.10.2026)