A Boeing KC-97 Stratofreighter/Stratotanker sits on the ramp, its distinctive double-bubble fuselage and radial engines evident. Derived from the B-29/B-50 bomber lineage, the KC-97 served the U.S. Air Force as a cargo transport and aerial refueling tanker from the late 1940s into the 1970s, with many later serving with Air National Guard units. Project: 218191