Boeing Military Airplanes
KC-46A Pegasus
First flight 25 September 2015 Introduction 2019 

The Boeing KC-46 Pegasus is an American military aerial refueling and strategic military transport aircraft developed by Boeing from its 767 jet airliner. In February 2011, the tanker was selected by the United States Air Force (USAF) as the winner in the KC-X tanker competition to replace older Boeing KC-135 Stratotankers. The first aircraft was delivered to the Air Force in January 2019. The Air Force intends to procure 179 Pegasus aircraft by 2027.

In February 2007, Boeing announced it was offering the KC-767 Advanced Tanker for the KC-X, stating that the KC-767 was a better fit than the KC-777 for the requirements.^[15] In April 2007, Boeing submitted its KC-767 tanker proposal to USAF. The KC-767 offered for this KC-X round was based on the in-development 767-200LRF (Long Range Freighter), rather than the -200ER on which Italian and Japanese KC-767 aircraft are based differing by combining the -200ER fuselage, -300F wing, gear, cargo door and floor, -400ER digital flightdeck and flaps, uprated engines, and "sixth-generation" fly-by-wire fuel delivery boom.
The 767-2C's first flight took place on 28 December 2014. It flew from Paine Field and landed at Boeing Field. In March 2015, a refueling test with a C-17 transport was stopped because of a higher-than-expected boom axial load while delivering fuel. The problem was caused by the turbulent "bow wave effect" generated by two large aircraft flying in line. In January 2016, the KC-46 successfully refueled an F-16 for the first time during a 5 hour 36 minute sortie. Test refueling of several other military aircraft followed, including a C-17, F/A-18, A-10, and AV-8B. In February 2016, a KC-46 refueled an F/A-18, using its probe-and-drogue system for the first time
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