Aerospace Maintenance and Regeneration Group Retired C-5 Galaxies sit at the 309th Aerospace Maintenance and Regeneration Group's Aircraft and Missile Storage and Maintenance Facility on Davis-Monthan Air Force Base, Ariz., Aug 2, 2017. The AMARG is the largest aircraft storage and preservation facility in the world. SHARE: Download: Full Size (1.37 MB) Tags: boneyard Credit: Air Force Staff Sgt. Perry Aston VIRIN: 170802-F-MG591-481K.JPG Photo Gallery