The Gulfstream G650 was formally launched as an internal company project in May 2005, and publicly unveiled on March 13, 2008. At the public announcement occasion, company executives stated the new model would become Gulfstream's largest, fastest and most expensive business jet on entry to the market. The G650 has a cruise speed of Mach 0.85 to 0.90, with maximum speed of Mach 0.925 and a range of up to 7, 000 nmi (13, 000 km). It can be equipped with a full kitchen and bar and may be equipped with a variety of entertainment features including satellite phones and wireless Internet. The jet uses two Rolls-Royce BR725 engines, each producing a maximum thrust of 17, 000 pounds-force (75.6 kN). Gulfstream states that with a weight of less than 100, 000 pounds (45, 400 kg), it is able to land at small airports avoiding the busy airports around the world. To provide better usage of the internal volume, Gulfstream designers rejected the usual circular fuselage cross-section in favor of an oval which uses a flatter lower portion. The cabin is 8 feet 6 inches (2.59 m) wide and 6 feet 5 inches (1.96 m) high. The fuselage is of metal construction; composite materials are used for empennage, winglets, rear pressure bulkhead, engine cowlings, cabin floor structure and many fairings. The eight oval cabin windows on each side of the fuselage are 28 inches (71 cm) wide. The wing uses greater sweep (36 degrees) than previous Gulfstream aircraft (for example, the G550 wing has 27 degrees of sweep). It does not use leading-edge high-lift devices, and tracks for rear-mounted flaps are completely enclosed within the airfoil contour. The wing's leading edge is a continuously-changing curve, and the airfoil varies continuously from root to tip (the tip incorporates winglets). The aircraft controls are completely fly-by-wire, with no mechanical control between pilot and flight surfaces. The surfaces are moved by dual hydraulic systems.
