Elementary Map and Aerial Photograph Reading. FM 21-25 Advanced Map and Aerial Photograph Reading. FM 21-26 Aerial Photography Military Applicatons. FM 30-21 Signal Training. Pamphlet no. 18. Volume III. Aerial Coupling Equipment "B". WO 7566 Aerial Observer Training. FM 1-80. training regulations Topography and surveying / War Department : Aerial photographic mapping / War Department war department technical manual Aerial phototopography / War Department radio equipment C.B. 4553 (R) Auto-aligning system mark 2. (A/AL. MK.2) : alignment of plan displays with associated radar aerials Modern air combat : the aircraft, tactics and weapons employed in aerial warfare today / Bill Gunston, Mike Spick ; [ed. Ray Bonds] Drone warfare : the development of unmanned aerial conflict / Dave Sloggett