File:Mid-air refueling f15 f16 kc135.jpg

United States Air Force KC-135R Stratotanker, two F-15 Eagles (twin fins) and two F-16 Fighting Falcons, on an aerial refueling training mission.

http://www.af.mil/photos U.S. Air Force photo by MSgt Marvin Krause) 010713-f-1718k-002.jpg Quote from af.mil: "Information presented on Airforce Link is considered public information and may be distributed or copied. Use of appropriate byline/photo/image credits is requested."