AIR FORCE HANDBOOK 10-222, VOLUME 14
This is a useful reference resource for the EOTWAWKI prepper who wants to protect the F16 in their backyard.
The resource is well illustrated with simple diagrams with relevant dimensions.
A field expedient sandbag filler
Civil Engineer Guide to Fighting Positions, Shelters, Obstacles and Revetments (USAF 2008) 2015-12-17
Military Defensive Field Works