world war 1 airship hangar on original farnborough airfield site, now farnborough business park, reflected in pool of water

air airfield airship arch architecture aviation balloon bolts british building bulding business construction engineering farnborough first force frame hampshire hangar heritage history icy innovation innovative lattice listed military mobile now original park pinehurst pool portable purlins q65 r51 raf reflect reflected reflection rivets road ropes royal sections shed shelter show site steel structure trusse war water welded winter wire world