Maximum pressurization is 10.69 psid, so typical cabin altitudes range from 3,000 ft. at FL 410 up to the maximum 4,850 ft. at FL 510.
In the cockpit, four 14.1-in., landscape-configuration LCD screens dominate G650's second-generation PlaneView instrument panel. The glareshield-mounted flight guidance panel has improved functionality, including LED illumination and annunciator buttons
Standard equipment includes Honeywell's second-generation synthetic vision. Rockwell Collins HGS-6250 head-up display (HUD) and Kollsman enhanced vision camera, three flight management systems, 3D Doppler weather radar, four Goodrich SmartProbe air data sensors and auto throttles, among other features.
The flight guidance system also has an automatic emergency descent mode.
The aircraft has a fully MSG 3 maintenance friendly design with 600-hr. basic inspection intervals.
Once outfitted, the G650's passenger cabin dimensions are 8.2 ft. wide, 6.3 ft. tall and 42.9 ft. overall length from cockpit divider to the baggage compartment bulkhead. The floor is 15 in. wider than the G550's, making it the widest among purpose-built business aircraft. Gulfstream's signature wide oval windows, eight per side, are 16% larger and 3.4 in. higher than those of previous models.
The electrically controlled and latched main door, a first for a Part 25 aircraft, is 6.3 ft. high by 3.0 ft. wide with an air-stair design that sported illuminated treads and hand rails on both sides.
The layout of the aircraft we flew for this report featured a forward crew area with crew rest compartment, galley and lavatory, three seating areas in the main cabin, an aft lavatory and an internally accessible, 195-cu.-ft., 2,500-lb.-capacity baggage compartment.
The cabin is one of the quietest in the sky, thanks to input from acoustical engineers at Electric Boat, like Gulfstream, a General Dynamics subsidiary. Its architecture assures that no single failure can cause loss of essential systems, including fresh and waste water, air-to-ground communications, lighting, or cabin power and control.