Yeah, you have to watch out what you download. You want to click aircraft and not aircraft variants after you click you version of RF. They are labeled as such if you look closely. You downloaded a variant, which requires the base airplane to be imported and already in RF. Also, hopefully you clicked and are downloading the correct files for your version. From what I understand, G3.5 files and up work with G3.5 to G5, as G3X, but the rfx G4 and 5 files won't work with G3.5. Any file that has a EA after it is an aircraft...any file that has an AV after it is an aircraft variant. Incidentally, here is a Stearman bipe that is ranked 9 out of 10 for G3.5: http://www.knifeedge.com/forums/down...o=file&id=1255