X-Plane 10 Scenery--KMDT Harrisburg International Airport, PA, USA, v1.00. Harrisburg International Airport is a public airport in Lower Swatara Township, Pennsylvania, nine miles southeast of Harrisburg. KMDT has a single runway, 13/31 and sits on the coast of the Susquehanna River. It is owned by the Susquehanna Area Regional Airport Authority. OpenSceneryX is required. Full description and main scenery folder included in the download. By Daniel Everman.