MODEL TEACHER U.S. Air Force Staff Sgt. Lee Fortner demonstrates how to build a model airplane to children at an orphanage, Santiago, Chile, Oct. 30, 2008. Fortner is assigned to the 355th Maintenance Group and is one of about 70 airmen participating in Operation Southern Partner, an outreach program spanning four South American countries. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 833373-Z-YYX59-766.jpg Photo Gallery