Gulfstream G500 and G600 reach 400 customer deliveriesnews by Fayaz Hussain July 20, 2026 Print this pageGulfstream Aerospace has delivered its 400th combined G500 and G600, marking a milestone for the twin-aircraft programme that has accumulated more than 519,000 flight hours and over 200,000 landings since entering service. The milestone delivery was a G600 outfitted at Gulfstream’s St. Louis facility for a customer in the Asia-Pacific region. “Reaching 400 deliveries is a testament to the confidence customers around the world continue to place in Gulfstream and in the G500 and G600,” said Mark Burns, president of Gulfstream. The programme has set more than 190 city-pair speed records, contributing to Gulfstream’s overall total of 815. Both aircraft feature the Gulfstream Symmetry Flight Deck, a maximum operating speed of Mach 0.925, 100% fresh air cabin with plasma ionisation air purification, and Gulfstream’s Panoramic Oval Windows.