1. 1Smith, R. K. \Seventy-Five Years of Inflight Refueling," Air Force and Museums Program,1998.2Pennington,R.J.\Tankers,"AirandSpaceSmithsonian,Vol.12,No.4,November1997,pp. 24{37.
2. 5Stephenson, J. L., The Air Refueling Receiver That Does Not Complain, Ph.D. thesis,School of Advanced Airpower Studies Air University, Maxwell AirForce Base, Alabama,June 1998.