added local_ref as per maps.aopa.ru
added airfield and its runways
Added sculpture, though this is not my usual cup of tea. Corrections/additions very welcome!
corrections to codes, according to official doc.
further corrections to codes, according to official doc.
added airstrip to existing runway
added some detail to newly added heliport
corrected tagging of disused runway
Consolidated info & removed double
Further reversals of suspected vandalism