X-Plane 9.70 Scenery--KEUG Eugene Airport, OR, USA, 1.00. Also known as Mahlon Sweet Field this airport in Eugene, Oregon is a city-owned regional with service within the state and to adjacent states. It has a uniquely recognizable terminal with a wavy roof and several jetways for various size aircraft, so this was modeled in Sketchup Make. Also included in this package is O94 Mahlon Sweet Heliport, located to the west of runway 16R/34L. Unzip in your Custom Scenery folder. You will get two new scenery folders, one for KEUG Eugene Airport and one for O94 Mahlon Sweet heliport. OpenSceneryX is required. By Richard Nilsson.