G550
There are nine G500s, and 198 G550s in active service as of January 2009.
Development
Gulfstream G500
The G500, a variant of the G550, certified by the FAA in 2003. It was introduced into service in 2004. As a shorter range version of the G550, it has the same exterior appearance, as well as the PlaneView cockpit, but does not have the Enhanced Vision System (EVS) as standard equipment, although it is available as an option.
It has a lower fuel capacity than the G550 for a range up to 5,800 nautical miles. The G500 was designed for an emerging market of customers who require the reliability of the G550, but neither the range nor the level of interior customization.
Gulfstream G550
The G550 (a varient of the Gulfstream V) was released to the market in 2003, and has increased performance.
Range is increased to 6,750 nautical miles (12,500 km), mostly due to reductions in aerodynamic drag. Additionally, this aircraft has a "PlaneView" cockpit, (which consists of 4 Honeywell DU-1310 EFIS screens, and a Gulfstream-designed cursor control system), and an Enhanced Vision System (EVS), an infrared camera that displays an image of the view in front of the camera on a head up display.
The EVS permits the aircraft to land in lower-visibility instrument meteorological conditions than a non-EVS-equipped aircraft. This aircraft may be distinguished from the legacy Gulfstream V by a seventh passenger window on both sides of the aircraft, and by the square outflow valve on the aircraft right side as compared to the circular one on the GV.
Navy operates three G550s as the C-37B as VIP transports.
United States Army - C-37B
U.S.