Andrew Thomas retired from the Royal Air Force in 2012 after over 40 years of service. He trained as a navigator and flew a variety of aircraft types from two-seat jets, Shackleton and E-3D AEW aircraft, Nimrod R 1 and the Islander light transport. He also served tours as a flying examiner and on staff duties at Strike (later Air) Command HQ. Since retirement he has served as a reservist on defence engagement and training in the Middle East for the Ministry of Defence.

His career was almost exactly bisected by the end of the Cold War, following which he has seen operational service in the Balkans, West Africa, Iraq and Afghanistan. He is an enthusiastic researcher and writer about the history of the RAF and its sister Commonwealth services as well as being a regular contributor to the leading British aviation magazines. He has also written over a dozen titles relating to RAF history, including several for Grub Street.