The aerodynamic design of its wing and empennage, and design of the interior were performed by Gulfstream; detailed design was performed by IAI to Gulfstream's requirements.
 It is a Gulfstream designed aircraft under a new type certificate.

The aircraft has several improvements, among them increased cabin length (external fuselage dimensions remain unchanged; the rear fuselage fuel tank was eliminated to add 17 inches (43 cm) of usable interior area).
It has a new HTF7250G engine, new T-tail (with larger horizontal and vertical stabilizers), wing anti-ice provided by engine bleed air, cabin with four more windows and access from the cabin to the baggage compartment.
It competes against the Bombardier Challenger 300 and the Cessna Citation X+.
The fuselage, empennage and landing gear are manufactured by IAI, the wing by Spirit AeroSystems (now by Triumph Group), and the aircraft is assembled in Israel.
It is then ferried to Dallas, Texas, for interior finishing and painting.

Its wing is a new design, using the Gulfstream G550 airfoil, and has a larger area of 495 ft² vs. 369 ft² of the G200.
This allows the business jet to climb directly to 43,000 ft (13,000 m).
Design cruise for the new airfoil is Mach 0.80, vs. Mach 0.75 for the G200 wing.
Flying at an altitude of 41,000 ft (12,000 m) and Mach 0.82 (467 kn or 865 km/h), each engine burns 900 lb (410 kg) of fuel per hour.
The aerodynamic design of its wing and empennage, and design of the interior were performed by Gulfstream; detailed design was performed by IAI to Gulfstream's requirements.  It is a Gulfstream designed aircraft under a new type certificate.
The aircraft has several improvements, among them increased cabin length (external fuselage dimensions remain unchanged; the rear fuselage fuel tank was eliminated to add 17 inches (43 cm) of usable interior area). It has a new HTF7250G engine, new T-tail (with larger horizontal and vertical stabilizers), wing anti-ice provided by engine bleed air, cabin with four more windows and access from the cabin to the baggage compartment. It competes against the Bombardier Challenger 300 and the Cessna Citation X+. The fuselage, empennage and landing gear are manufactured by IAI, the wing by Spirit AeroSystems (now by Triumph Group), and the aircraft is assembled in Israel. It is then ferried to Dallas, Texas, for interior finishing and painting.
Its wing is a new design, using the Gulfstream G550 airfoil, and has a larger area of 495 ft² vs. 369 ft² of the G200. This allows the business jet to climb directly to 43,000 ft (13,000 m). Design cruise for the new airfoil is Mach 0.80, vs. Mach 0.75 for the G200 wing. Flying at an altitude of 41,000 ft (12,000 m) and Mach 0.82 (467 kn or 865 km/h), each engine burns 900 lb (410 kg) of fuel per hour.
Gulfstream G280