Marker
8) marker - an object installed above ground level to denote an obstacle or boundary;
Source: Order of the Ministry of Industry and Trade of the Russian Federation dated 30.12.2009 No. 1215 "On Approval of Normative Methodological Documents Regulating the Operation and Maintenance of Experimental Aviation Airfields" (together with "Norms of Fitness for Operation of Experimental Aviation Airfields (NFEA EA)", "Guidelines for Operational Maintenance of Experimental Aviation Airfields (REMA EA)") (Registered by the Ministry of Justice of the Russian Federation on 05.04.2010 No. 16822)