Gulfstream G650ER Blasts Another High-Speed Record The Gulfstream G650ER has once again hit the record books by demonstrating its high-speed and long-range endurance. The latest attempt proved these characteristics on a run between Singapore and San Francisco. That is a distance nearly 7,500 (7,475 nm) nautical miles long. The G650ER departed Singapore’s Changi Airport at 10:58 a.m. local time December 18, 2018, crossing the Pacific to arrive in San Francisco at 8:45 a.m., local time. Flown at an average speed of Mach 0.87, the flight took just 13 hours and 37 minutes.