Richard, The AO stands for Aviation Ordnance. How about yourself? Former or Retired Navy by chance? Great photo of the FJ-3 Fury chasing that drone. That's gotta be 1950's circa - very cool. I replied to your post re. the photos you posted of the your diarama, it looks great.
Thanks for welcoming me aboard all of you, I hope I can help all of you out at sometime down the road.