I ran to the house, eager to haul out my Remington 30-06' deer rifle and score my first enemy aircraft. Unfortunately for me, but fortunately for the pilot, when I looked up again I could read "Outback" on the side of the airship. Not having heard anything about an outbreak of hostilities with Australia, I figured it was probably not a threat.
Nevertheless, I'm keeping the artillery close at hand for the next encounter with an unidentified flying object.