Originally ordered for Western Airlines as N1508W but completed for CAF as CC-137 and taken on strength 24 February 1970. Now fitted with wingtip refuelling pods. Sold to the USAF in 1997 for conversion by Northrop - Grumman to E-8C JSTARS as 97-0200. On display here with the rudder unusually not in the normal 'neutral' position.