Gulfstream Announces Program Progress For G500; G600 Gulfstream, a General Dynamics Company, just announced the G500 and G600 program progress to-date. The G500 has yielded tremendous results thus far and G600's first Test Article has had the fuselage and wing mated in preparation for its first flight. The G500 flight-test program also achieved several milestones to include receiving the program’s first Type Inspection Authorization (TIA) from the Federal Aviation Administration (FAA). The FAA issued the TIA for inlet compatibility and allowed Gulfstream to perform this testing for certification credit. The G500 flight-test program officially began May 18, 2015, when the first G500 flight-test article, T1, completed its first flight. Since then, T1 has reached a maximum speed of Mach 0.995, a maximum altitude of 53,000 feet/16,154 meters and recently completed its 100th flight. The test fleet, which includes four flight-test articles (T1-T4), has accumulated more than 800 hours of flying time.