Locator outer marker

• abstract: Locator outer marker (LOM)A locator outer marker, or LOM, is a navigation aid used as part of an instrument landing system (ILS) instrument approach for aircraft in the United States and other countries. An LOM is a non-directional beacon (NDB) co-located with the outer marker beacon in the ILS approach, so that aircraft can navigate directly to the location using the NDB as well as be alerted when they fly over it by the beacon.

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