Gulfstream Aerospace Corp. has announced the launch of its new super-midsize business jet, the G300, which will replace the company’s G280 model as part of its expanding next-generation fleet. The aircraft was unveiled on 30 September 2025 at Gulfstream’s customer event in Savannah, where company President Mark Burns presented a full-scale mock-up and shared images of the first G300 in production. Gulfstream Aerospace is a wholly owned subsidiary of General Dynamics.

The G300 will feature the manufacturer’s signature Panoramic Oval Windows and introduce a new Harmony Flight Deck equipped with advanced avionics designed to improve safety and operational efficiency.

“Fueled by a decade of investment and our future-forward approach, the Gulfstream next-generation fleet offers our customers the most innovative family of aircraft. We know how important the super-midsize cabin segment is to our customers, so building on the highly successful G280 program, the G300 will reenergize the category with its heightened technology and safety enhancements, alongside the legendary comfort and styling of a Gulfstream. The G300 program is making great progress and the vision for this aircraft is well on its way to becoming a reality for our customers as they look for an airplane that will exceed their expectations in the super-midsize class.”

Mark Burns, president, Gulfstream

The aircraft offers trans-Atlantic capabilities with a range of 3,600 nautical miles at Mach 0.80 or 3,000 nautical miles at Mach 0.84. It can reach a maximum cruise altitude of 45,000 feet and maintains what Gulfstream says is the lowest cabin altitude in its class—4,800 feet when flying at 41,000 feet. The cabin features 100% fresh air, a plasma ionization air purification system, and 10 Panoramic Oval Windows.

With the longest cabin in its class, the G300 includes two living areas and can accommodate up to 10 passengers.

The Harmony Flight Deck incorporates six touch screens with Phase-of-Flight intelligence. Key features include a Synthetic Vision-Primary Flight Display that renders runways and terrain in 3D, and Gulfstream’s Predictive Landing Performance System, which provides real-time runway stopping point calculations.

The aircraft is powered by high-thrust Honeywell engines paired with Gulfstream’s swept wing design for fuel efficiency. According to Gulfstream, the company has completed nearly 22,000 hours of testing at its laboratory facilities, including work at an Integration Test Facility with Iron Bird capability that completed its simulated “first flight” last month. The manufacturer has also logged nearly 2,000 ground test hours on the first aircraft and has begun production of two additional test aircraft.

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Photos courtesy of Gulfstream