Tulsa District, U.S. Army Corps of Engineer contractors work to construct a two bay hangar for the Boeing KC-46A at Tinker Air Force Base, August 15, 2018. Constructed on a Boeing 767 airframe, the Pegasus is taller, longer and has a larger wingspan than the 707-based airframe of the KC-135 Stratotanker. Construction on the multi-phase KC-46A project at Tinker is expected to run through fiscal year 2029, with final construction providing hangar space for 14 separate KC-46A aircraft.