Gulfstream G700 Reaches Mach .99, 54,000 Feet In Flight Tests Written 29 July 2020

Gulfstream G700 on first flight | Gulfstream Aerospace Corporation
Aviation International News reports that Gulfstream “is reporting progress in the testing program for its new flagship G700, completing more than 100 flights to date.” The company “also has conducted flutter testing and expanded the flight envelope at both low and high speeds.” The G700 aircraft, which is powered by two Rolls-Royce Pearl 700 engines, “has an intended maximum operating speed of Mach 0.925 and a maximum cruising altitude of 51,000 feet, but as part of the test regime, the aircraft exceeded both, reaching Mach 0.99 and an altitude of 54,000 feet.”
Full Story (Aviation International News)