GULFSTREAM

Stephen Costley October 01, 2025

GULFSTREAM introduced new 10-pax, super-midsize G300, featuring panoramic oval windows and all-new Harmony flight deck with six touchscreens, as replacement for G280; aircraft has 3,000 nm high-speed cruise range at Mach 0.84.

Stephen Costley

Steve Costley is responsible for the overall production SpeedNews. Steve has over 30 years of experience with SpeedNews, now part of the Aviation Week Network. He joined the company in August 1989 as an Associate Editor and was named Managing Editor in 1994. He was also named Vice President and Chief Operating Officer of SpeedNews, Inc., in the late 1990s, and held those titles until Prism Business Media acquired the company from Gil Speed in 2006.

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