As {TAIL ~ the airship} moves around the sky the image is visible on the exterior of the craft to observers on {HEAD ~ the ground} 
As { TAIL ~ the airship } moves around the sky the image is visible on the exterior of the craft to observers on { HEAD ~ the ground }
OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD