Gulfstream G300 Completes First Flight, Advancing Super-Midsize Jet Program Aviation News – Gulfstream’s new G300 business jet completed its first flight in Israel, marking a major milestone in the company’s latest super-midsize aircraft program. The G300, introduced on September 30 in Savannah, took off from Ben Gurion International Airport, Israël at 8:05 a.m. on December 5, 2025. The aircraft flew for 2 hours and 25 minutes, reaching Mach 0.75 and an altitude of 30,000 feet.