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Backcourse Localizer Use Type (LBU)

DGIF baseline 2026-1, the latest. Earlier baselines: timemap.

RDF: lbu.ttl

Name

backcourseLocalizerUseType

Datatype

Enumeration

Definition

The usability of the localizer signal in the direction opposite of the primary localizer course.

Synonyms

Backcourse Localizer Use Type

Accepted

2013-10-18

Defined by

DFDD

Values

• LBU_1 No
• LBU_2 Yes
• LBU_3 Restricted

Used by

• GA091 Instrument Landing System (ILS) Localizer

Source: DGIF 2026-1 QEA model, DGIWG. Standard: DGIWG 206-3. Licence: CC BY 4.0, © DGIWG.