The in-service fleet of more than 260 Gulfstream G500s and G600s have cumulatively surpassed 200,000 flight hours, split about evenly between the two models, Savannah, Georgia-based Gulfstream Aerospace said. These milestones come nearly six years after the first G500 was delivered to a customer and about five years since the G600 entered service.

“Our award-winning G500 and G600 continue to demonstrate impressive performance,” said Gulfstream president Mark Burns. “This achievement is a result of the strong demand and high flight activity we’re seeing from customers around the world. Having exceeded 100,000 flight hours further reiterates the durability and dependability of the G500 and G600.”

At a long-range cruise speed of Mach 0.85, the G500 and G600 can fly 5,300 nm and 6,600 nm, respectively, according to Gulfstream. Both aircraft have an Mmo of Mach 0.925.

In October, the G500 received FAA approval for steep-approach operations, with the G600 obtaining similar certification last month.