An air observation post (AOP) is an aeroplane or helicopter used in the role of artillery spotter by the British Army and Commonwealth forces. In this role, either the pilot of the aircraft or another crew member acts as an observer watching for targets on the ground, and/or as a forward observation officer directing the fire, by radio, of artillery on the ground (or calling in tactical ground-attack aircraft).[1][2]
- ^ Wragg, David W. (1973). A Dictionary of Aviation (first ed.). Osprey. p. 26. ISBN 9780850451634.
- ^ History of AOP at forcesreunited.org.uk Archived 22 August 2011 at the Wayback Machine