Gulfstream G500/G600
| G500 / G600 | |
|---|---|
 | |
| G500 on display at Farnborough International Airshow 2016 | |
| Role | Business jet |
| National origin | United States |
| Manufacturer | Gulfstream Aerospace |
| First flight | May 18, 2015[1] |
| Introduction | G500: 2018, G600: 2019 (planned)[2] |
| Status | Under development |
| Number built | G500: 5[2] |
| Unit cost |
G500: $43.5 million, G600: $54.5M[3] |
The Gulfstream G500 and G600 (GVII) are Gulfstream twin-engine business jets. The G500 will replace the G450, flying almost 30 kt faster and 18% farther with the same fuel burn.[4] The G600 will succeed the G550.[5]
Development
They were unveiled by Gulfstream Aerospace on October 14, 2014, with the G500 rolling under its own power.[6] It first flew on May 18, 2015.[1] It should be certified in 2017 and delivered in 2018 while the larger G600 should enter service in 2019.[2] It should fly before the 2016 year-end.[7]
Design
Airframe
The aircraft have a four radii cross-section fuselage, similar to the G650, 7-inch narrower in width and shorter in height, but with only 1 inch less headroom. Similar to current Dassault Falcon jets, they have 2 in more headroom, 7 in more cabin width and 8 in more floor width than the G450 and G550.[8] It have an external height of 100-in. and width of 101-in., the production G500 have 14 windows instead of 12 on the four prototypes.[7]
The wing is supercritical with a 0.87 to 0.88 drag drag divergence Mach number depending upon lift coefficient.[4] It is based on the G650 one with the same 36° sweep. The G600 wing will be eight feet larger to allow 10,000 pounds more fuel. They will have a new tail based on the aerodynamic shape and systems of the G650 tail.[3]
The airframe is mainly made of high-strength aluminum alloys and limited use of steel alloys or titanium; the horizontal stabilizer, fairings, main landing gear doors, rudder and elevators, radomes, rear pressure bulkhead and winglets are composite materials. The semi-monocoque fuselage structure is made of stressed skin, frame and longeron.[4]
Engines
The G500/G600 will be powered by the Pratt & Whitney Canada PW800, based on the Pratt & Whitney Geared Turbofan core without the gear reduction. The depart from Rolls-Royce Aero Engines is a first for Gulfstream. It could have used the RB282, initially selected in 2008 for the Dassault Falcon 5X, the program was halted when the Global crisis hit, and was restarted after but using Snecma Silvercrests. The PW800 was conceived for the Cessna Citation Columbus, this program was shelved too at the same time but not restarted since.[5]
Systems
Electric and hydraulic systems are from the G650, as the digital air data computers, secondary power distribution with electronics, cabin acoustical treatment, primary avionics, satcom, improved cabin management system and digital fly-by-wire system. The oxygen, cabin pressurization, landing gear control, aircraft health and trend monitoring systems are adapted from the G650.[8] The auxiliary power unit is a Honeywell HTG400G.[4]
It is equipped with BAE Systems active sidesticks, appearing to be mechanically linked by being electrically back-driven, the first civil aircraft to be so.[4] The Honeywell Symmetry Flight Deck features four portrait main displays, three touchscreens on the overhead panel instead of stand-alone switches ; there is four touchscreens in the glareshield and left and right touch standby displays at each seat. The enhanced flight vision system is displayed through 42×30° field-of-view head-up display, along a complete avionics suite.[9]
Specifications
| Model | G500[10] | G600[11] |
|---|---|---|
| crew | 2 pilots | |
| Capacity | Up to 19 passengers | |
| Length | 91 ft 2 in (27.78 m) | 96 ft 1 in (29.29 m) |
| Wingspan | 87 ft 1 in (26.55) m | 95 ft (28.96 m) |
| Height | 25 ft 6 in (7.78 m) | 25 ft 3 in (7.70 m) |
| Maximum takeoff weight | 76,850 lb (34,859 kg) | 91,600 lb (41,549 kg) |
| Maximum landing weight | 64,350 lb (29,189 kg) | 76,800 lb (34,836 kg) |
| Maximum Zero Fuel weight | 52,100 lb (23,632 kg) | 57,440 lb (26,054 kg) |
| Basic Operating weight | 46,600 lb (21,137 kg), 3 crew | 51,440 lb (23,333 kg), 4 crew |
| Maximum Payload | 5,500 lb (2,495 kg) | 6,000 lb (2,722 kg) |
| Payload with maximum fuel | 1,800 lb (816 kg) | |
| Maximum Fuel | 28,850 lb (13,086 kg) | 38,760 lb (17,581 kg) |
| Turbofan (2×) | Pratt & Whitney Canada PW814GA | Pratt & Whitney Canada PW815GA |
| Thrust, takeoff (2×) | 15,144 lbf (67.36 kN) | 15,680 lbf (69.75 kN) |
| Range (M0.85, 8 pax, NBAA reserves) | 5,000 nmi (9,260 km), 3 crew | 6,200 nmi (11,482 km), 4 crew |
| High-Speed cruise speed | Mach 0.90, 516 kn (956 km/h) at cruising altitude | |
| Long-Range cruise speed | Mach 0.85, 487 kn (902 km/h) at cruising altitude | |
| Maximum speed | Mach 0.925, 530 kn (982 km/h) at cruising altitude | |
| Takeoff Distance (SL, ISA, MTOW) | 5,200 ft (1,585 m) | 5,700 ft (1,737 m) |
| Landing Distance (SL, ISA, MLW) | 3,100 ft (945 m) | |
| Initial Cruise Altitude | 41,000 ft (12,497 m) | |
| Maximum Cruise Altitude | 51,000 ft (15,545 m) | |
See also
- Related development
- Aircraft of comparable role, configuration and era
References
- 1 2 "Gulfstream G500 Completes First Flight" (Press release). Gulfstream. May 18, 2015.
- 1 2 3 "Gulfstream G500 and G600 programs on track" (Press release). Gulfstream. May 25, 2016.
- 1 2 Alcock, Charles (14 October 2014). "New Gulfstreams Deliver More Range and Cabin Comfort". Aviation International News.
- 1 2 3 4 5 "Pilot Report : Gulstream G500". Business & Commercial Aviation. Aviation Week. October 21, 2016.
- 1 2 "Analysis: Gulfstream G600 technical description". Flight Global. Oct 24, 2016.
- ↑ "Gulfstream Introduces New Aircraft Family" (Press release). Gulfstream. October 14, 2014.
- 1 2 "Gulfstream G500 Advances, On Track for 2017 Approval". Aviation International News. September 29, 2016.
- 1 2 "Gulfstream Unveils G500 and G600". Aviation Week. Nov 1, 2014.
- ↑ Fred George (Oct 19, 2016). "Symmetry Flight Deck Powered By Honeywell". Business & Commercial Aviation. Aviation Week.
- ↑ "G500 Specifications" (PDF). Gulfstream. 2016.
- ↑ "G500 Specifications" (PDF). Gulfstream. 2015.
External links
- G500
- G600
- Trautvetter, Chad (14 October 2014). "Gulfstream Racks Up Launch Orders for New G500". Aviation International News.
- Alcock, Charles (14 October 2014). "Gulfstream Unmasks Two New Fly-by-wire Large-cabin Jets". Aviation International News.
- Matt Thurber (April 25, 2015). "Stealthy Development: the G500/600". Aviation International News.