The story During the night of Sunday 9th August 1981, a light aircraft registered VH-MDX disappeared on or near the ranges associated with Mt Barrington with five people on board. Read More The flight Enter here to obtain an overview of what happened during the flight. Overview the flight Our approach Since mid 2014, we have taken a new, focused direction to locating VH-MDX. See how we are tackling the conundrum So where is VH-MDX? The classic VH-MDX question. See which area our current research is pointing towards Research Read the latest research papers looking into the background, technical aspects and search area development for the missing Cessna 210. Read the Research Can you help? Look in here to see how Universities, professional organisations and individuals can assist in solving the VH-MDX mystery See how you can help Maps Interactive map with search tracks overlaid. l Research This is the place to go to download current research documents.