Gulfstream G550

==Variants==
;{{visible anchor|GV-SP}}
:The same as the [[Gulfstream V|Gulfstream V or GV]] with a new flightdeck display system, airframe aerodynamic and engine improvements, main entry door moved forward, also marketed as the G550.
;G500
:The Gulfstream G500 has a reduced fuel capacity.<ref name= typeCert/> Introduced in 2004 as a shorter {{convert|5800|nmi|km}} range version, it has the same exterior appearance, as well as the PlaneView [[cockpit]], but [[Visual Docking Guidance System|Visual Guidance System]] (HUD) and [[Synthetic vision system|Enhanced Vision System]] (EVS) are options. Its unit cost was {{AircraftCost|USA|48.25|m||year=2012|ref=<ref>{{cite web |url= http://awin.aviationweek.com/portals/awin/pdfs/BCAOpPlanningGuide/2012_Production.pdf |title= Operations Planning Guide |work= Business & Commercial Aviation |date= 2012 |publisher= Aviation Week}}</ref>}}.
;G550
:Marketing name for the GV-SP. In 2021, its equipped price was $54.5M (~${{Format price|{{Inflation|index=US-GDP|value=54500000|start_year=2021}}}} in {{Inflation/year|US-GDP}}).<ref>{{cite news |url= https://infogram.com/bca-table-jets-1h8n6m3l3dvqj4x?live |title= Purchase planning handbook - Ultra long-range jets table |date= Second Quarter 2021 |work= Business & Commercial Aircraft}}</ref>
[[File:U.S. Air Force, 09-0525, Gulfstream Aerospace C-37B (27878765353).jpg|thumb|[[United States Air Force|U.S. Air Force]] C-37B.]]
;C-37B
:[[United States Armed Forces|U.S. military]] designation for the G550 in a VIP passenger configuration.
;EA-37B
:U.S. military designation G550 version in an Electronic Warfare configuration to replace USAF's existing [[EC-130H Compass Call]] aircraft.<ref>{{cite web|url=https://www.baesystems.com/en/article/moving-compass-call-electronic-warfare-system-to-modern-business-jet|access-date=8 April 2020|title=Moving Compass Call electronic warfare system to modern business jet}}</ref><ref>{{cite web | url=https://www.flightglobal.com/fixed-wing/l3harris-flies-ec-37b-compass-call-electronic-warfare-jet-for-first-time/145816.article | title=L3Harris flies EC-37B Compass Call electronic warfare jet for first time}}</ref> Previously known as EC-37B, on November 14, 2023, [[Air Combat Command]] redesignated the platform as EA-37B to better identify its mission of finding and attacking enemy land or sea targets.<ref>{{cite web |title= EC-37B Mission Design Series designation change to EA-37B |url=https://www.acc.af.mil/News/Article-Display/Article/3588046/ec-37b-mission-design-series-designation-change-to-ea-37b/ |website=Air Combat Command |date=14 November 2023 |access-date=22 November 2023}}</ref><ref>{{cite web |last1=Tirpak |first1=John A. |title=New EC-37B Gets a Designation Change to EA-37B |url=https://www.airandspaceforces.com/new-ec-37b-designation-change-ea-37b/ |website=Air & Space Forces Magazine |date=20 November 2023 |access-date=22 November 2023}}</ref>
;NC-37B
:U.S. military designation for proposed G550 with the "Conformal AEW" body shape for use as range telemetry aircraft for U.S. Navy.<ref>{{cite news |url= http://www.janes.com/article/59202/us-navy-to-customise-g550-aew-airframe-for-range-telemetry-support/ |title= US Navy to customise G550 AEW airframe for range telemetry support |work= Jane's International Defence Review |date= 1 April 2016}}</ref><ref>{{Cite web|url=http://www.thedrive.com/the-war-zone/23448/behold-the-first-official-photo-of-the-navys-new-nc-37b-missile-tracking-bizjet|title=Behold The First Official Photo Of The Navy's New NC-37B Missile Tracking Jet|last=Trevithick|first=Joseph|website=The Drive|date=7 September 2018 |access-date=2018-10-11}}</ref>
;MC-55A Peregrine
:[[Royal Australian Air Force]] designation for [[SIGINT]] and [[ELINT]] [[intelligence gathering]] variant.<ref>{{Cite web|url=http://www.australiandefence.com.au/news/raaf-gets-four-new-ew-aircraft|title=RAAF gets four new EW aircraft - Australian Defence Magazine|website= australiandefence.com.au|language=en|access-date=2019-03-18}}</ref>

[[File:RSAF Gulfstream IAI G550 CAEW (Conformal Airborne Early Warning).jpg|thumb|Republic of Singapore Air Force G550 with [[IAI EL/W-2085]] radar system]]
;G550 CAEW
:[[Israel]] has acquired a number of G550s, fitted with the [[IAI EL/W-2085]] sensor package (a newer derivative of the [[EL/M-2075|Phalcon]] system) for [[Airborne Early Warning]] (AEW) use and named the aircraft ''Eitam''. This aircraft is heavily modified for the AEW role by Gulfstream's partner, [[Israel Aerospace Industries]] (IAI), and is also called CAEW (Conformal Airborne Early Warning) by Gulfstream Special Missions Department.<ref>{{cite web |url= http://www.iai.co.il/2013/33785-36643-en/ELTA.aspx |title= ELW-2085 - CAEW - Conformal Airborne Early Warning & Control |publisher= IAI}}</ref> Israel has also acquired a number of G550s dubbed SEMA (Special Electronic Missions Aircraft) with systems EL/I-3001 integration also carried out by IAI.<ref name=IsraelreceivefirstEitam>{{Cite news |url= http://mobiledevdesign.com/news/israel-receive-first-three-eitam-aew-aircraft |title= Israel to receive the first of three Eitam AEW aircraft |date=February 13, 2008 |publisher= Penton}}</ref> In 2012, [[Italy]] acquired two G550 CAEWs as part of a counter-deal to Israel's $1 billion (~${{Format price|{{Inflation|index=US-GDP|value=1000000000|start_year=2012}}}} in {{Inflation/year|US-GDP}}) order for 30 Alenia Aermacchi [[M-346]] advanced jet trainers.<ref name=FG120720>{{cite news |url= https://www.flightglobal.com/news/articles/italy-signs-g550-aew-deal-with-israel-374579/ |title= Italy signs G550 AEW deal with Israel |work= Flight Global |date= 20 July 2012}}</ref> In 2022, Italy ordered two additional aircraft.<ref>{{cite news |title=Secret NATO Client of Israeli Spy Planes Revealed |url=https://www.haaretz.com/israel-news/security-aviation/2022-08-28/ty-article/.premium/secret-nato-client-of-israeli-spy-planes-revealed/00000182-ce84-dfe2-aba3-efeee72f0000 |access-date=10 September 2022 |work=[[Haaretz]] |date=28 April 2022}}</ref> [[Singapore]] ordered four similar G550 CAEW aircraft equipped with the EL/W-2085 sensor package from Gulfstream and IAI.<ref>{{cite news |author= Govindasamy, Siva |url= https://www.flightglobal.com/news/articles/picture-singapore-takes-delivery-of-first-g550-aew-322937/ |title= Singapore takes delivery of first G550 AEW |work= Flight International |date= February 23, 2009}}</ref>
;E-550A: Italian military designation for the G550 CAEW<ref name="dgaa">{{cite web |url= http://www.difesa.it/SGD-DNA/Staff/DT/ARMAEREO/Biblioteca/1Categoria/Documents/AER_EP_0_0_12_Em1_Ed_11122019.pdf |title= Utilizzo della Nomenclatura "Mission Design Series" (MDS) nelle Pubblicazioni Tecniche (PP.TT.) di competenza della DAAA AER(EP).0-0-12 |publisher= Ministero Della Defesa |date= 11 December 2020 |access-date= 14 May 2020}}</ref>
;Air-to-air refueling variant: [[Israel Aerospace Industries]] has studied adapting the G550 for [[Aerial refueling|air-to-air refueling]] use.<ref>{{cite news |author= Egozi, Arie |url= http://www.flightglobal.com/news/articles/iai-and-gulfstream-planning-g550-tanker-216019/ |title= IAI and Gulfstream planning G550 tanker |work= Flight International |date= August 13, 2007}}</ref><ref>{{cite news |author= Egozi, Arie |url= http://www.flightglobal.com/news/articles/iai-continues-to-evaluate-g550-for-air-refuelling-351235/ |title= IAI continues to evaluate G550 for air refuelling |work= Flight International |date= December 23, 2010}}</ref>