Howdy! New user here... I would like to create a filter that would remove everything but military aircraft. I assume doing every country's military would be tedious and tiresome, so just U.S. After looking through the forums, I found that I can filter on "^ae.*" to get just US. Air Force. I've searched (and probably not to well!) but I cannot find a breakdown of what the Navy, Marines, Army, and Coast Guard Hex Codes start with. Would anybody happen to know or be able to point me in the direction of where I could find that?