Gulfstream G400/G500/G600

{{Short description|Business jet family}} {{About|the new G400 and G500|the earlier G400 based on the GIV and G500 based on the GV-SP|Gulfstream IV|and|Gulfstream G550}}  {{Infobox aircraft | name = G400 / G500 / G600 | logo = | logo_size = | image = File:Gulfstream G600.jpg | alt = | caption = G600 test aircraft in flight | long_caption = | other_names = | aircraft_type = [[Business jet]] | aim = | outcome = | related = | national_origin = United States | manufacturer = [[Gulfstream Aerospace]] | design_group = | designer = | builder = | issuer = | status = In service | owners = | primary_user = | more_users = | service = | major_applications = | proposals = | prototypes = | number_built = G400: 1 prototype, as of April 2023<ref>{{Cite web |title=G400 first flight is key milestone in long certification slog |author=Will Guisbond |work=The Air Current |date=15 August 2024 |access-date=19 March 2025 |url= https://theaircurrent.com/dispatches/?entry=27175}}</ref> G500: 125+ as of April 2024<ref>{{cite news |url= https://www.gulfstreamnews.com/en/news/?id=de3e243d-882d-479a-91b0-188860ecc376 |title= GULFSTREAM G500 RETURNS TO AERO FRIEDRICHSHAFEN |date= April 9, 2024 |work= Gulfstream}}</ref> G600: 200+ as of Mar. 2026<ref>{{cite press release |url= https://www.gulfstreamnews.com/en/news/?id=40f11d1e-cbce-4a75-9b7e-cdd5190b7e4a |title= Gulfstream Completes 200th G600 Delivery |date= March 23, 2026 |work= Gulfstream}}</ref> G500+G600: 350+ as of Jan. 2026<ref>{{cite news |url=https://www.gulfstreamnews.com/en/news/?id=495a7661-809b-4348-94e4-be55b3266404 |title= Gulfstream G500 and G600 Secure EASA Steep-Approach Certification |date= January 12, 2026 |work= Gulfstream}}</ref> | construction_number = | civil_registration = | military_serial = | radio_code = | requirement = | aircraft_carried = | flights = | total_hours = | total_distance = | construction_date = 2014–present | introduction = G500: September 27, 2018<ref name=Gulfstream27sep2018/> G600: August 8, 2019<ref name=Gulfstream8aug2019/> | retired = | first_flight = G500: May 18, 2015<ref name=Gulfstream18may2015/> G600: December 17, 2016<ref name=Gulfstream17dec2016/> | initiated = | in_service = | last_flight = | expected = | developed_from = | variants = | developed_into = | preservation = | fate = | predecessors = | successors = | concluded = }}

The '''Gulfstream G400''', '''G500''', and '''G600''' ('''GVII'''<ref name="tc"/>) are American [[twinjet|twin-engine]] [[business jet]]s designed and produced by [[Gulfstream Aerospace]]. The aircraft are designated ''Gulfstream GVII-G500'' and ''GVII-G600'' in their [[type certificate]].<ref name="tc">{{Cite web |title=Type Certificate Date Sheet No. T00021AT, Revision 7 |date=August 9, 2021 |url=https://drs.faa.gov/browse/excelExternalWindow/6C1AAF558F3702538625872C005F5233.0001 |access-date=2022-12-17 |publisher=[[Federal Aviation Administration]] }}</ref>

The two larger models were unveiled on October 14, 2014 and the smaller G400 was unveiled on October 4, 2021. The G500 was first delivered on September 27, 2018, and the longer G600 was first delivered August 8, 2019. The G500 will replace the [[G450]] while the larger G600 will succeed the [[G550]]. The smaller G400 meanwhile has not yet been certified, and is not expected to go into production until 2025.<ref name=":0" />

Powered by two [[Pratt & Whitney Canada PW800]] turbofans, the {{cvt|79,600|lb|t|1|abbr=}} [[Maximum takeoff weight|MTOW]] G500 has a range of {{Convert|5300|nmi|lk=in|abbr=~}},<ref name="G500" /> while the {{cvt|94,600|lb|t|abbr=}} G600 can cover {{cvt|6,600|nmi|km|-1}} at a speed of Mach 0.85.<ref name="G600" />

== Development == Both aircraft were unveiled by [[Gulfstream Aerospace]] on October 14, 2014<ref name=Gulfstream14oct2014>{{cite press release |url= http://www.gulfstream.com/gulfstreamnow/article/gn-introducing-the-gulfstream-g500-and-g600 |title= Gulfstream Introduces New Aircraft Family |publisher= Gulfstream |date= October 14, 2014 |access-date= May 25, 2016 |url-status= dead |archive-url= https://web.archive.org/web/20181209212545/http://www.gulfstream.com/gulfstreamnow/article/gn-introducing-the-gulfstream-g500-and-g600 |archive-date= December 9, 2018}}</ref> During the second quarter of 2017, 80% of Gulfstream orders were for the G500/G600.<ref name=Flight16Aug2017>{{cite news |url= https://www.flightglobal.com/news/articles/g500-edges-closer-to-certification-milestone-440301/ |title= G500 edges closer to certification milestone |date= 16 Aug 2017 |author= Kate Sarsfield |work= Flightglobal}}</ref>

In January 2026, the Gulfstream G500 and G600 received certification from the European Union Aviation Safety Agency (EASA) for steep-approach landing capability, allowing operations at additional airports with steep terminal procedures, such as London City Airport and Lugano Airport.<ref name=":1" />

===G500=== [[File:Static display, EBACE 2018, Le Grand-Saconnex (BL7C0638).jpg|thumb|G500 at [[EBACE]] 2018]] [[File:Gulfstream GVII-G500 interior.jpg|thumb|Gulfstream GVII-G500 interior]]

The G500 was [[taxiing]] under its own power at its unveiling on October 14, 2014,<ref name=Gulfstream14oct2014/> and it first flew on May 18, 2015.<ref name=Gulfstream18may2015>{{cite press release |url= https://www.gulfstreamnews.com/en/news/?id=675391cf-80c4-441d-87ca-9c0dc4d19473 |title= Gulfstream G500 Completes First Flight |publisher= Gulfstream |date= May 18, 2015 }}</ref> The model was initially planned to be certified in 2017.<ref name="programs on track">{{cite press release |url= http://www.gulfstream.com/gulfstreamnow/article/gn-gulfstream-g500-and-g600-programs-on-track |title= Gulfstream G500 and G600 programs on track |publisher= Gulfstream |date= May 25, 2016 |access-date= September 30, 2016 |archive-url= https://web.archive.org/web/20170718175425/http://www.gulfstream.com/gulfstreamnow/article/gn-gulfstream-g500-and-g600-programs-on-track |archive-date= July 18, 2017 |url-status= dead }}</ref><ref name=AIN160929>{{cite web |url= http://www.ainonline.com/aviation-news/business-aviation/2016-09-29/gulfstream-g500-advances-track-2017-approval |title= Gulfstream G500 Advances, On Track for 2017 Approval |date= September 29, 2016 |work= Aviation International News}}</ref> In May 2017, the test fleet of four G500 prototypes and the first production aircraft, made over 745 flights in two years for 2,900 flight hours, on track for the certification by the end of the year.<ref name=":1">{{Cite web |date=2026-01-12 |title=Gulfstream G500, G600 receive EASA steep approach landing certification |url=https://www.globalair.com/articles/gulfstream-g500-g600-receive-easa-steep-approach-landing-certification?id=11769 |access-date=2026-01-28 |website=Globalair.com |language=en}}</ref>

In August 2017, the FAA issued the G500 a type inspection authorization to allow in flight evaluation. The five G500 test aircraft have logged more than 3,100 hours over 820 sorties and completed cabin systems, brakes, lighting, fly-over noise and fuel systems tests. The fifth G500, with a complete interior, will be the first to enter service, as a demonstrator, before customer deliveries in early 2018.<ref name=Flight16Aug2017/> Through August 20, the G500s had flown 3,460 h over 905 flights, reaching Mach 0.995 and FL530.<ref name=AIN24aug2017/>

For the October 2017 [[National Business Aviation Association|NBAA]] show, the five G500s were completing their campaign with 995 flights and 3,690 h - 10 h 19 min for the longest - the first delivery schedule was maintained as certification was pushed until early 2018.<ref name=Flight10oct2017/> Mach 0.85 range for the G500 was extended by 200 nmi to 5,200 nmi/9,630 km and by 600 nmi/1,111 km to 4,400 nmi/8,149 km at Mach 0.90.<ref name=AIN9oct2017/>

The 300 flights hours of function and [[Reliability engineering|reliability]] testing required for FAA [[type certification]] was to be completed in summer 2018 after 240 were done at the end of May 2018 covering 100,300 nmi in 69 flights, along [[icing conditions|known icing]] flight and high-elevation certification tests: the five flight-test G500s made 1,355 flights in 4,955 hours.<ref name=AIN28may2018/>

On July 20, 2018, Gulfstream announced it received both its type certification and production certificate from the FAA, before first delivery in the fourth quarter.<ref>{{cite press release |url= https://www.gulfstreamnews.com/news/gulfstream-g500-earns-both-type-and-production-certificates-from-u-s-federal-aviation-administration |title= Gulfstream G500 Earns Both Type And Production Certificates From U.S. Federal Aviation Administration |date= July 20, 2018 |publisher= Gulfstream |access-date= July 20, 2018 |archive-date= July 20, 2018 |archive-url= https://web.archive.org/web/20180720225655/https://www.gulfstreamnews.com/news/gulfstream-g500-earns-both-type-and-production-certificates-from-u-s-federal-aviation-administration |url-status= dead }}</ref> As [[nacelle]] supplier [[Nordam]] filed for [[bankruptcy]] on 23 July, initial deliveries will be slowed.<ref>{{cite news |url= https://www.flightglobal.com/news/articles/supplier-dispute-will-slow-gulfstream-g500-deliverie-450647/ |title= Supplier dispute will slow Gulfstream G500 deliveries |date= 25 July 2018 |author= Stephen Trimble |work= Flightglobal}}</ref> Certification allowed the [[EFVS]] to provide the only visual cues for [[landing]] down to {{cvt|1,000|feet}} [[runway visual range]], to touchdown and rollout, after 50 test approaches, and testing to lower visibilities could allow dropping the limit.<ref>{{cite news |url= https://www.ainonline.com/aviation-news/business-aviation/2018-11-13/gulfstream-first-certify-efvs-landing-system |title= Gulfstream First to Certify EFVS Landing System |author= Matt Thurber |date= November 13, 2018 |work= AIN online }}</ref>

The first G500 was delivered on September 27, 2018.<ref name=Gulfstream27sep2018>{{cite press release |url= https://www.gulfstreamnews.com/news/releases-20180927 |title= Gulfstream Delivers First New-generation G500 On Time |date= September 27, 2018 |publisher= Gulfstream |access-date= September 29, 2018 |archive-date= March 28, 2019 |archive-url= https://web.archive.org/web/20190328005427/https://www.gulfstreamnews.com/news/releases-20180927 |url-status= dead }}</ref> On October 1, Gulfstream announced the acquisition of the nacelle manufacturing line from Nordam.<ref>{{cite news |url= https://www.flightglobal.com/news/articles/gulfstream-acquires-g500-and-g600-nacelle-line-from-452364/ |title= Gulfstream acquires G500 and G600 nacelle line from Nordam |date= 2 October 2018 |author= Kate Sarsfield |work= Flightglobal}}</ref>

In 2022, its equipped price was $49.5M.<ref>{{cite news |url= https://infogram.com/bca-table-2022-jets-1hdw2jp5m870j2l |title= Purchase planning handbook - Jets table |date= Second Quarter 2022 |work= Business & Commercial Aircraft}}</ref>

===G600=== [[File:N982RW - Gulfstream G600 - Private - HSIA.jpg|thumb|G600 Final approach]]

The longer G600 had its first flight at [[Savannah/Hilton Head International Airport]] on December 17, 2016.<ref name=Gulfstream17dec2016>{{cite press release |url= http://gulfstreamnews.com/news/gulfstream-g600-takes-flight-ahead-of-schedule |title= Gulfstream G600 takes flight ahead of schedule |publisher= Gulfstream |date= December 17, 2016 |access-date= December 23, 2016 |archive-date= September 28, 2018 |archive-url= https://web.archive.org/web/20180928200959/https://www.gulfstreamnews.com/news/gulfstream-g600-takes-flight-ahead-of-schedule |url-status= dead }}</ref><ref>{{cite web|url= http://www.avweb.com/avwebflash/news/G600-First-Flight-228216-1.html|title= G600 First Flight|access-date= 19 December 2016|last= Niles|first= Russ|work=AVweb|date= 17 December 2016}}</ref> Four flight-test aircraft and a production G600 will be used for the test program for a scheduled 2018 introduction:<ref name=AIN170905>{{cite news |url= https://www.ainonline.com/aviation-news/business-aviation/2017-05-09/gulfstream-flies-third-g600-track-2018-eis |title= Gulfstream Flies Third G600, On Track for 2018 EIS |author= Chad Trautvetter |date= May 9, 2017 |work= Aviation International News}}</ref> * T1, which flew 311 hours in five months, will test [[brakes]] development, [[flying qualities]], [[Stall (fluid mechanics)|stall]] speeds, air data and [[RVSM]]; * T2, which has 52 flight hours in two months, will focus on [[Center of gravity of an aircraft|loads]], [[Climb (aeronautics)|climb]] performance, [[Aircraft noise|flyover noise]] and function and reliability testing; * T3 first flew on May 5, 2017, and will be used for [[Takeoff and landing|field]] performance, [[ice protection]], [[cabin pressurization]] and oxygen system testing; * T4 will test automatic [[Aircraft flight control system|flight control systems]], [[avionics]] and the [[Aircraft fuel system|fuel system]]; * P1, the first production G600, will test cabin systems and the production interior.

In August 2017, the fifth was being outfitted for its third quarter first flight.<ref name=Flight16Aug2017/> Through August 20, the four G600s have logged 780 h in 175 flights, the longest lasting 13 h 5 min, it completed testing for initial [[flight envelope]] expansion and flying qualities, flutter, brakes, low speed or stall, loads calibration, parameter identification and climb performance, the fifth test aircraft will fly later in the quarter.<ref name=AIN24aug2017>{{cite news |url= https://www.ainonline.com/aviation-news/business-aviation/2017-08-24/gulfstream-continues-make-progress-g500-g600 |title= Gulfstream Continues To Make Progress on G500, G600 |author= Mark Huber |date= August 24, 2017 |work= AIN}}</ref>

For the October 2017 [[National Business Aviation Association|NBAA]] show, five G600s were flying as it was to be introduced in early 2019.<ref name=Flight10oct2017>{{cite news |url= https://www.flightglobal.com/news/articles/nbaa-gulfstream-announces-range-extensions-for-g500-441981/ |title= Gulfstream announces range extensions for G500 and G600 |date= 10 October 2017 |author= Murdo Morrison |work= Flight International}}</ref> Range for the G600 was extended by 300 nmi/556 km for both Mach 0.85 to 6,500 nmi/12,038 km and Mach 0.90 to 5,100 nmi/9,445 km.<ref name=AIN9oct2017>{{cite news |url= https://www.ainonline.com/aviation-news/business-aviation/2017-10-09/gulfstream-g500/600-performance-exceeds-original-specs |title= Gulfstream: G500/600 Performance Exceeds Original Specs |author= J.E. Burnside |date= October 9, 2017 |work= AIN |access-date= 2017-10-11 |archive-date= 2017-10-12 |archive-url= https://web.archive.org/web/20171012094729/https://www.ainonline.com/aviation-news/business-aviation/2017-10-09/gulfstream-g500/600-performance-exceeds-original-specs |url-status= dead }}</ref> In October 2018, Mach 0.9 range was increased again to {{cvt|5,500|nmi|km}}.<ref>{{cite news |url= http://www.flightglobal.com/news/articles/nbaa-gulfstream-unveils-g600-range-increase-452652/ |title= NBAA: Gulfstream unveils G600 range increase |date= 15 October 2018 |work= Flightglobal }}</ref>

Certification and introduction for the G600 was to happen in 2018 like for the G500.<ref name=AvWeek29mar2018>{{cite news |url= http://aviationweek.com/business-aviation/gulfstream-delivers-more-range-first-promised |title= Gulfstream Delivers More Range Than First Promised |date= Mar 29, 2018 |author= William Garvey |work= Aviation Week & Space Technology}}</ref> The five flight-test G600s accumulated 1,950 hours in 510 flights, were completing [[mechanical system]]s certification testing in May 2018 before [[airfield]]-performance testing in summer.<ref name=AIN28may2018>{{cite news |url= https://www.ainonline.com/aviation-news/business-aviation/2018-05-28/gulfstreams-g500-closes-type-certification |title= Gulfstream's G500 Closes in on Type Certification |author= Samantha Cartaino |date= May 28, 2018 |work= AIN online}}</ref> By August, 600 flights over 2,290 hours were completed after trials for ice shapes and stall speed testing and before field-performance testing, towards U.S. approval by year-end and deliveries in 2019.<ref>{{cite news |url= https://www.ainonline.com/aviation-news/business-aviation/2018-08-21/nearing-faa-nod-g600-starts-field-performance-tests |title= Nearing FAA Nod, G600 Starts Field-performance Tests |author= Chad Trautvetter |date= August 21, 2018 |work= AIN online}}</ref> By October, the test aircraft had accumulated 685 flights in over 2,600 hours.<ref>{{cite news |url= http://aviationweek.com/nbaa-2018/gulfstream-announces-range-increase-g600 |title= Gulfstream Announces Range Increase For G600 |date= October 15, 2018 |author= Molly McMillin |work= Aviation Week Network}}</ref> The FAA's rigorous review delayed the certification as the test programme had logged more than 3,150h over 840 flights by the end of April 2019, and approval was targeted before the end of June for a second half of 2019 service entry.<ref>{{cite news |url= https://www.flightglobal.com/news/articles/analysis-business-aircraft-in-the-works-458118/ |title= Business aircraft in the works |date= 20 May 2019 |author= Kate Sarsfield |work= Flightglobal}}</ref>

On June 28, 2019, Gulfstream announced the G600 type and production certificates from the FAA.<ref>{{cite press release |url= https://www.gulfstreamnews.com/news/gulfstream-g600-receives-type-certificate-from-federal-aviation-administration |title= Gulfstream G600 Receives Type Certificate From Federal Aviation Administration |date= June 28, 2019 |publisher= Gulfstream |access-date= June 29, 2019 |archive-date= June 29, 2019 |archive-url= https://web.archive.org/web/20190629154728/https://www.gulfstreamnews.com/news/gulfstream-g600-receives-type-certificate-from-federal-aviation-administration |url-status= dead }}</ref> The first G600 was delivered on August 8, 2019.<ref name=Gulfstream8aug2019>{{cite press release |url= https://www.gulfstreamnews.com/news/gulfstream-delivers-first-g600 |title= Gulfstream delivers first G600 |date= August 8, 2019 |publisher= Gulfstream |access-date= August 9, 2019 |archive-date= August 9, 2019 |archive-url= https://web.archive.org/web/20190809133506/https://www.gulfstreamnews.com/news/gulfstream-delivers-first-g600 |url-status= dead }}</ref> The first EASA-certified G600 was delivered in December 2020 to an Austrian operator.<ref name=EASAG600>{{cite web |url= https://www.evaint.com/gulfstream-delivers-first-easa-certified-g600 |title= Gulfstream delivers first EASA-certified G600 |last= RAJA |first= PARVEEN |date= December 17, 2020 |website= evaint.com |access-date= December 17, 2020}}</ref>

In 2022, its equipped price was $59.5M.<ref>{{cite news |url= https://infogram.com/bca-table-2022-jets-ultra-long-range-1h7j4dvy7zmw94n |title= Purchase planning handbook - Ultra long-range jets table |date= Second Quarter 2022 |work= Business & Commercial Aircraft}}</ref>

=== G400 === On October 4, 2021, Gulfstream introduced the 4,200 nmi (7,780 km) range G400, powered by [[Pratt & Whitney Canada PW800|Pratt & Whitney PW812GA]] engines with deliveries planned to start in 2025.<ref>{{cite press release |url= https://gulfstreamnews.com/en/news/?id=1bc2a506-05b6-4c3e-bea0-95ead33c52ed |title= Gulfstream Introduces Two All-New Business Jets |date= October 4, 2021 |publisher= Gulfstream Aerospace Corp.}}</ref> Priced at $34.5 million,<ref>{{cite news |url= https://aviationweek.com/business-aviation/aircraft-propulsion/gulfstream-unveils-new-generation-g400-g800-jets |title= Gulfstream Unveils New-Generation G400, G800 Jets |author= Bill Carey |date= October 5, 2021 |work= Aviation Week}}</ref> the G400 has a shortened G500 fuselage,<ref>{{cite news |url= https://theaircurrent.com/aircraft-development/gulfstream-loads-g800-and-g400-into-its-product-pipeline/ |title= Gulfstream loads G800 and G400 into its product pipeline |date= September 30, 2021 |author= Jon Ostrower |work= The air current}}</ref> with 2.5 zones and 10 windows,<ref name=G400/> instead of 3 zones and 12 windows (the G600 has 3.5 zones and 14 windows). By March 2022, as the prototype was not yet rolled out, Gulfstream was anticipating a more extensive flight-test and certification campaign for the five test aircraft, as the G400 is powered by a different PW800 variant and the US government strengthened some certification requirements after the [[Boeing 737 Max groundings]], but the 2025 first delivery goal remained.<ref name=":0">{{cite news |url= https://www.flightglobal.com/business-aviation/gulfstream-prepared-for-tougher-g400-flight-test-and-certification-programme/147977.article |title= Gulfstream prepared for tougher G400 flight-test and certification programme |author= Jon Hemmerdinger |date= 18 March 2022 |work= FlightGlobal}}</ref> First flight occurred in August 2024.<ref>{{cite web | title=News Releases - Gulfstream News - Gulfstream News | url=https://www.gulfstreamnews.com/en/news/?id=0b3e74d0-226b-416a-bf11-3420493bf4af }}</ref>

== Design == The G500 will replace the [[G450]], flying nearly {{convert|30|kn|kph}} faster and 18% farther with the same fuel burn.<ref name=AW161021/> The larger G600 will succeed the [[G550]].<ref name=FG161024/>

=== Airframe === [[File:Gulfstream G500, EBACE 2018, Le Grand-Saconnex (BL7C0677).jpg|thumb|G500 cabin]]  Both models have a four [[circular arc]]s cross-section fuselage, similar to the [[Gulfstream G650]], with a {{convert|7|in|cm|abbr=on}} reduction in width and height. Similar in dimension to the [[Dassault Falcon]], the G500/600 have {{convert|2|in|cm|abbr=on}} more headroom, {{convert|7|in|cm|abbr=on}} more cabin width and {{convert|8|in|cm|abbr=on}} more floor width than Gulfstream's [[G450]] and [[G550]].<ref name=AW141101/> The fuselage has an external height of {{convert|8|ft|4|in|m|abbr=on}}, and width of {{convert|8|ft|5|in|m|abbr=on}}. The production G500 will have 14 windows, two more than the prototype models.<ref name=AIN160929/> The G600 cabin is {{cvt|3.7|ft}} longer than the G500, allowing up to four passenger zones or three {{cvt|8.75|ft}} long zones, a longer galley and a forward crew rest.<ref name=BCA23oct2019>{{cite news |url= https://aviationweek.com/business-aviation/pilot-report-gulfstream-g600-worthy-successor-g550 |title= Pilot Report: Gulfstream G600 Is A Worthy Successor To The G550 |date= October 23, 2019 |author= Fred George |work= Business & Commercial Aviation}}</ref>

The wing is a [[Supercritical airfoil|supercritical]] design with a 0.87 to 0.88 [[drag divergence Mach number]] depending upon lift coefficient.<ref name=AW161021/> It is based on the G650's wing design with the same 36° sweep. The G600's wingspan will be {{convert|8|ft|m|abbr=on}} wider than the G500, allowing for {{convert|11,250|lb|kg|abbr=on}}<ref name=G600/> of additional fuel. Both models have a new tail design based on the aerodynamic shape and systems of the G650's tail.<ref name=AIN14oct2014>{{cite news |author= Alcock, Charles |url= http://www.ainonline.com/aviation-news/business-aviation/2014-10-14/new-gulfstreams-deliver-more-range-and-cabin-comfort |title= New Gulfstreams Deliver More Range and Cabin Comfort |publisher= Aviation International News |date= 14 October 2014}}</ref>

The [[airframe]] is primarily composed of high strength [[aluminum alloy]]s with limited use of steel and [[titanium alloy]]s. The horizontal stabilizer, fairings, main landing gear doors, rudder and elevators, [[radome]], rear pressure bulkhead and winglets are [[composite material]]s. The [[semi-monocoque]] fuselage structure is made of stressed skin, frame and [[longeron]].<ref name=AW161021/>

=== Engines === [[File:Static display, EBACE 2018, Le Grand-Saconnex (BL7C0639).jpg|thumb|PW815 on a G600]]

The G500/G600 is powered by the [[Pratt & Whitney Canada PW800]] series turbofan engines (PW814GA for G500 and PW815GA for G600) which was originally conceived for the [[Cessna Citation Columbus]] program. The PW800 is based on the [[Pratt & Whitney Geared Turbofan]] core without the gear reduction. The departure from [[Rolls-Royce Aero Engines]] is rare for Gulfstream.<ref name=FG161024>{{cite news |url= https://www.flightglobal.com/news/articles/analysis-gulfstream-g600-technical-description-430414/ |title= Analysis: Gulfstream G600 technical description |work= Flight Global |date= October 24, 2016}}</ref> For the G500 in cruise, at FL400, ISA -5 °C, total fuel flow is {{cvt|2,920|lb}}/h at M0.90/{{cvt|510|kn|km/h|0}} [[true airspeed|TAS]], {{cvt|2,400|lb|kg|-1}}/h at M0.85/{{cvt|476|kn|km/h|0}} TAS.<ref>{{cite news |url= https://www.flightglobal.com/news/articles/analysis-gulfstream-raises-super-large-bar-with-g50-448133/ |title= Analysis: Gulfstream raises super-large bar with G500 |date= 22 May 2018 |author= Mike Gerzanics |work= Flightglobal}}</ref> At FL450, Mach 0.90/{{cvt|506|kn|km/h|0}} TAS and ISA -8 °C, it burns {{cvt|2,600|lb|kg}}/h.<ref>{{cite news |url= https://www.ainonline.com/aviation-news/business-aviation/2018-08-24/pilot-report-gulfstream-g500 |title= Pilot Report: Gulfstream G500 |author= Matt Thurber |date= August 24, 2018 |work= AIN online}}</ref>

At Mach 0.90, {{cvt|512|kn|km/h}} TAS, the G600 burns {{cvt|2,960|lb}} per h at FL430, ISA-3 °C and a weight of {{cvt|62,300|lb}}, compared to a {{cvt|3,100|lb}} per h book value. At Mach 0.85 {{cvt|479|kn|km/h}} TAS, the same G600 burns {{cvt|2,200|lb}} per h at FL470, ISA-10 °C and a weight of {{cvt|62,000|lb}}, below the {{cvt|2309|lb}} prediction.<ref name=BCA23oct2019/>

=== Systems === [[File:Gulfstream G600, EBACE 2018, Le Grand-Saconnex (BL7C0704).jpg|thumb|G600 flight deck]]

Electric and hydraulic systems are from the G650, as well as the digital air data computers, secondary power distribution with electronics, cabin acoustical treatment, primary avionics, satcom, and improved cabin management system. The digital [[fly-by-wire]] system is similar except for new active control [[sidestick]]s and dual channel remote electronic units which replace single channel units from G650. The oxygen, cabin pressurization, landing gear control, aircraft health and trend monitoring systems are adapted from the G650.<ref name=AW141101>{{cite news |url= http://aviationweek.com/bca/gulfstream-unveils-g500-and-g600 |title= Gulfstream Unveils G500 and G600 |publisher= Aviation Week |date= November 1, 2014}}</ref> The [[auxiliary power unit]] is a [[Honeywell]] HTG400G.<ref name=AW161021>{{cite news |url= http://aviationweek.com/business-aviation/pilot-report-gulfstream-g500 |title= Pilot Report: Gulstream G500 |date= October 21, 2016 |work= Business & Commercial Aviation |publisher= Aviation Week}}</ref> The cabin pressurization reaches {{cvt|10.69|psi|bar}}.<ref name=BCA23oct2019/>

It is equipped with [[BAE Systems]] active [[sidestick]]s, appearing to be mechanically linked by being electrically back-driven, the first civil aircraft to be so.<ref name=AW161021/> The Honeywell Symmetry Flight Deck features four portrait main displays, three touchscreens on the overhead panel instead of stand-alone switches; there are four force-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]].<ref>{{cite news |url= http://aviationweek.com/business-aviation/symmetry-flight-deck-powered-honeywell |title= Symmetry Flight Deck Powered By Honeywell |date= October 19, 2016 |author= Fred George |work= Business & Commercial Aviation |publisher= Aviation Week}}</ref>

== Civil operators == In February 2026, reports emerged that the Government of Punjab in Pakistan had acquired a US-registered Gulfstream G500 business jet, manufactured in 2019 and valued at an estimated PKR 10–11.7 billion (approximately US$38–42 million), for use within the province's proposed airline project, ''Air Punjab''. The aircraft, registration ''N144S'', was observed operating domestically under the call sign "Punjab", a call sign conventionally used when the Chief Minister is aboard, and was described by provincial officials as part of a future mixed fleet for the nascent airline rather than a VIP transport for the officeholder. The acquisition sparked widespread controversy in Pakistani national and international media, with critics, including political opponents and public commentators, characterizing the purchase as an insensitive expenditure during a period of economic hardship and heavy national reliance on international financial support. Opposition figures argued that diverting billions of rupees to a luxury business jet was unjustified amid pressing socio-economic challenges and contrasted the cost with that of the recently privatized [[Pakistan International Airlines]]. Supporters within the government defended the move, stating that it was intended to support ''Air Punjab’s'' launch, although aviation experts questioned the commercial viability of using a 17-seat business jet in scheduled operations.<ref>{{Cite web |title=Amid IMF reliance, Maryam Nawazâ€™s reported Rs 10 billion jet sparks political storm in Punjab |url=https://www.moneycontrol.com/world/amid-imf-reliance-maryam-nawaz-s-reported-rs-10-billion-jet-sparks-political-storm-in-punjab-article-13838649.html |archive-url=http://web.archive.org/web/20260222090608/https://www.moneycontrol.com/world/amid-imf-reliance-maryam-nawaz-s-reported-rs-10-billion-jet-sparks-political-storm-in-punjab-article-13838649.html |archive-date=2026-02-22 |access-date=2026-02-27 |website=Moneycontrol |language=en-US}}</ref><ref>{{Cite web |title=Pakistan Punjab CM Maryam comes under fire over acquisition of luxury jet for PKR 11.7 billion |url=https://www.tribuneindia.com/news/pakistan/pakistan-punjab-cm-maryam-comes-under-fire-over-acquisition-of-luxury-jet-for-pkr-11-7-billion/ |access-date=2026-02-27 |website=The Tribune |language=en}}</ref><ref>{{Cite web |title=Maryam faces backlash over luxury aircraft |url=https://dailypioneer.com/news/maryam-faces-backlash-over-luxury-aircraft |access-date=2026-02-27 |website=dailypioneer.com |language=en}}</ref>

== Specifications == {{sticky header}} {| class="wikitable sortable sticky-header" style="text-align: center;" ! Model ! G400<ref name=G400>{{cite web |url=https://www.gulfstream.com/en/aircraft/gulfstream-g400/ |title=G400 |website= gulfstream.com |access-date=2022-06-16}}</ref> ! G500<ref name=G500>{{Cite web |url=https://www.gulfstream.com/en/aircraft/gulfstream-g500/ |title=G500 |website= gulfstream.com |access-date=2022-06-16}}</ref> ! G600<ref name=G600>{{Cite web |url=https://www.gulfstream.com/en/aircraft/gulfstream-g600/ |title=G600 |website= gulfstream.com |access-date=2022-06-16}}</ref>  |- ! Cockpit crew | colspan= 3 | Two |- ! Capacity | 12 | colspan= 2 | 19<ref>{{cite web |title=Gulfstream Aerospace - Aircraft |url=http://www.gulfstream.com/aircraft |website= gulfstream.com |access-date=10 August 2019}}</ref> |-  ! Length | {{cvt|86|ft|3|in}} | {{cvt|91|ft|2|in}} | {{cvt|96|ft|1|in}} |- ! Wingspan | {{cvt|86|ft|4|in}} | {{cvt|86|ft|4|in}} | {{cvt|94|ft|2|in}} |- ! Height | {{cvt|25|ft|4|in}} | {{cvt|25|ft|6|in}} | {{cvt|25|ft|3|in}} |-  ! Cabin length | {{cvt|36|ft|4|in}} | {{cvt|41|ft|6|in}} | {{cvt|45|ft|2|in}} |- ! Cabin cross section | colspan= 3 | Height: {{cvt|6|ft|2|in}}, Width: {{cvt|7|ft|7|in}} |- ! Cabin volume | {{cvt|1441|cuft}} | {{cvt|1715|cuft}} | {{cvt|1884|cuft}} |- ! Baggage volume | colspan= 3 | {{cvt|175|cuft}} |-  ! [[Maximum takeoff weight]] (MTOW) | {{cvt|69850|lb}} | {{cvt|79600|lb}} | {{cvt|94600|lb}} |- ! [[Basic operating weight]] (BOW){{efn|Includes three crew members for the G400 and G500 while including four crew for the G600.}} | {{cvt|43100|lb}} | {{cvt|46850|lb}} | {{cvt|50900|lb}} |- ! Maximum payload | {{cvt|4050|lb}} | {{cvt|5250|lb}} | {{cvt|6540|lb}} |- ! Fuel capacity | {{cvt|25350|lb}} | {{cvt|30250|lb}} | {{cvt|41500|lb}} |-  ! Turbofans (x2) | [[Pratt & Whitney Canada PW800|P&WC PW812GA]] | [[Pratt & Whitney Canada PW800|P&WC PW814GA]] | [[Pratt & Whitney Canada PW800|P&WC PW815GA]] |- ! Takeoff thrust (x2) | {{cvt|13496|lbf|kN|1}} | {{cvt|15144|lbf|kN|1}} | {{cvt|15680|lbf|kN|1}} |-  ! Range<ref>{{Cite web |title=Aircraft |url=https://www.gulfstream.com/en/aircraft/?range_map |website= gulfstream.com |access-date=2022-06-16}}</ref> | {{cvt|4200|nmi|0}}{{efn|At Mach 0.85, 8 pax, 3 crew, NBAA IFR reserves, unless otherwise noted.}} | {{cvt|5300|nmi|0}}{{efn|At Mach 0.85, 8 pax, 3 crew, NBAA IFR reserves, unless otherwise noted.}} | {{cvt|6600|nmi|0}}{{efn|At Mach 0.85, 8 pax, 4 crew, NBAA IFR reserves}} |- ! Cruise speed | {{cvt|0.85-0.88|Mach|altitude_ft=41000|kn km/h mph|0}} | colspan=2 | {{cvt|0.85-0.90|Mach|altitude_ft=41000|kn km/h mph|0}} |- ! Max. operating speed, [[V speeds#Mach numbers|MMO]] | {{cvt|0.90|Mach|altitude_ft=41000|kn km/h mph|0}} | colspan=2 | {{cvt|0.925|Mach|altitude_ft=41000|kn km/h mph|0}} |- ! Takeoff distance (SL, ISA, MTOW) | {{cvt|5000|ft|0}} | {{cvt|5300|ft|0}} | {{cvt|5700|ft|0}} |- ! Ceiling | colspan=3 | {{cvt|51000|ft|0}} / [[Cabin altitude]]: {{Cvt|4,850|ft}} |} {{notelist}}

==See also== {{aircontent |see also=  |related=  * [[Gulfstream G650]] |similar aircraft=  * [[Bombardier Challenger 650]] * [[Bombardier Global Express]] * [[Dassault Falcon 2000]]LX * [[Dassault Falcon 6X]] * [[Dassault Falcon 7X]]/8X |lists=   }}

==References== {{Reflist}}

==External links== {{commonscat|Gulfstream GVII}} * {{Official website|http://www.gulfstream.com/aircraft/gulfstream-g500|G500}} * {{Official website|http://www.gulfstream.com/aircraft/gulfstream-g600|G600}} * {{cite news |author= Trautvetter, Chad |url= http://www.ainonline.com/aviation-news/ainalerts/2014-10-14/gulfstream-racks-launch-orders-new-g500 |title= Gulfstream Racks Up Launch Orders for New G500 |work= Aviation International News |date= 14 October 2014}} * {{cite news |author= Alcock, Charles |url= https://www.ainonline.com/aviation-news/business-aviation/2014-10-14/gulfstream-unmasks-two-new-fly-wire-large-cabin-jets |title= Gulfstream Unmasks Two New Fly-by-wire Large-cabin Jets |work= Aviation International News |date=14 October 2014}} * {{cite news |url= https://www.ainonline.com/aviation-news/business-aviation/2015-04-25/stealthy-development-g500600 |title= Stealthy Development: the G500/600 |author= Matt Thurber |date= April 25, 2015 |publisher= Aviation International News}}

{{DEFAULTSORT:Gulfstream G500 G600}} [[Category:Gulfstream aircraft|G500]] [[Category:2010s United States business aircraft]] [[Category:Twinjets]] [[Category:T-tail aircraft]] [[Category:Aircraft first flown in 2015]] [[Category:Aircraft with retractable tricycle landing gear]]