The first Boeing [NYSE: BA] KC-46A tanker that will be delivered to the U.S. Air Force next year successfully completed its first flight and airborne tests today, taking off from Paine Field at 10:32 a.m. PST and landing approximately three-and-one-half hours later. During the flight, Boeing test pilots took the tanker to a maximum altitude of 39,000 feet and performed operational checks on engines, flight controls and environmental systems as part of the Federal Aviation Administration (FAA)-approved flight profile. Prior to subsequent flights, the team will conduct a post-flight inspection and calibrate instrumentation. The newest tanker is the KC-46 program’s seventh aircraft to fly to date. The previous six are being used for testing and certification and to date have completed 2,200 flight hours and more than 1,600 “contacts” during refueling flights with F-16, F/A-18, AV-8B, C-17, A-10, KC-10 and KC-46 aircraft.