Aerial Demonstration The Air Force Thunderbirds open their aerial demonstration with the “Diamond Opener” during the Mountain Madness 2014 Air Show in Kalispell, Mont., Aug. 30, 2014. SHARE IMAGE: Download Image: Small (102.4 KB)| Medium (174.08 KB)| Full Size (1.18 MB) Tags: Air Force Photo By: Air Force Tech. Sgt. Manuel J. Martinez VIRIN: 140829-F-RR679-1792C.JPG Photo Gallery