This addon have meshes form Jack Higgins and Missleman01, i just made some editions to make this spacecraft "fllyable" in the Orbiter 2006 P1. I don't know why, this don't work on my Orbiter 2010! Try on your Orbiter 2010, if this works, say me in the forum. The Mariner 2 was the first spacecraft to make a sucessful planetary flyby in 1962. Was an amazing spacecraft!