X-Plane 10 Scenery--EDRG Idar Oberstein 1.0. Idar - Oberstein airfield is located north of the town of Idar - Oberstein between the district of Gottschied Gerach and Hintertiefenbach, Germany. The airfield is at an altitude of 480 meters (1575 feet) and has a 650 meter long and 50 meter wide grass runway. Requires OpenSceneryX, RuScenery (RUSCENERY.ZIP), R2 Library (R2_LIBRARY.ZIP) and the World2XPlane library (WORLD2XPLANE.ZIP). By Bjoern Meier.