Editing Geosynchronous Satellite Launch Vehicle (section)

{{Short description|Class of Indian medium-lift expendable launch vehicles, developed by ISRO}}
{{Use Indian English|date=March 2021}}
{{Use dmy dates|date=March 2021}}
{{Infobox Rocket
| name           = GSLV
| image          = {{CSS image crop |Image =  
GSLV-F14, INSAT-3DS - Launch Vehicle at Second Launch Pad (SLP).webp|bSize= 850 |cWidth =250 |cHeight = 480 |oTop =40 |oLeft =290|Location=center}}
| caption        = GSLV-F14 carrying INSAT-3DS at the [[Satish Dhawan Space Centre Second Launch Pad]]
| upright        = 1.2
| function       = [[Medium-lift launch vehicle|Medium-lift Launch System]]
| manufacturer   = ISRO
| country-origin = India
| cpl            = US$47 million<ref>{{cite web|title=GAO|url=http://www.gao.gov/products/GAO-17-609}}</ref>
| height         = {{cvt|49.13|m}}<ref name="gslv">{{cite web|url=http://isro.gov.in/launchers/gslv|title=Geosynchronous Satellite Launch Vehicle|access-date=21 December 2014|archive-url=https://web.archive.org/web/20151021032054/http://www.isro.gov.in/launchers/gslv|archive-date=21 October 2015|url-status=dead}}</ref>
| diameter       = {{cvt|2.8|m}}
| mass           = {{cvt|414750|kg}}
| stages         = 3

| capacities = {{Infobox rocket/Payload
| location       = [[Low Earth orbit|LEO]]
| kilos          = {{cvt|6000|kg}}<ref name="GSLV_SSO">{{cite web |title=HSFC Presentation from International Space Conference and Exhibition 2021 |url=https://ciihive.in/Attachments/Exhibitor/35711_HSFCStandeefinal.pdf |access-date=7 October 2022 |archive-url=https://web.archive.org/web/20210913121945/https://ciihive.in/Attachments/Exhibitor/35711_HSFCStandeefinal.pdf |archive-date=13 September 2021}}</ref>
}}
{{Infobox rocket/Payload
| location       = [[Sun-synchronous orbit|SSO]]
| kilos          = {{cvt|3000|kg}}<ref name="GSLV_SSO" />
}}
{{Infobox rocket/Payload
| location       = [[Geosynchronous transfer orbit|GTO]]
| kilos          = {{cvt|2500|kg}}<ref name="gslv"/><ref name="FL20180829">{{cite news|title=ISRO developing vehicle to launch small satellites|url=https://frontline.thehindu.com/science-and-technology/article24801393.ece|access-date=29 August 2018}}</ref>
}}
| status = {{plainlist|
* '''Mk I:''' Retired
* '''Mk II:''' Active
}}
| sites          = [[Satish Dhawan Space Centre]]
| launches       = [[List of GSLV launches#Launch history|17]] + 7 (planned)
| success        = 11
| fail           = 4
| partial        = 2
| first          = {{plainlist|
* '''Mk.I:''' 18 April 2001
* '''Mk.II:''' 15 April 2010
}}
| payloads       = * [[INSAT]]
* [[GSAT]] ([[South Asia Satellite]])
* [[GISAT]]
* [[IRNSS|NVS]]
* [[NISAR]] 
| last           = {{plainlist|
* '''Mk.I:''' 25 December 2010
* '''Mk.II:''' 29 January 2025
}}

| stagedata = {{Infobox rocket/Stage
| type           = booster
| number         = 4 L40 Hs
| length         = {{cvt|19.7|m}}<ref name=F09borchure>{{cite web|url=http://www.isro.gov.in/gslv-f09-gsat-9/gslv-f09-brochure|title=GSLV F09 Brochure|publisher=ISRO}}</ref>
| diameter       = {{cvt|2.1|m}}
| engines        = 1 [[L40H Vikas]] 2
| thrust         = {{cvt|760|kN}}<ref name=F08borchure>{{cite web|url=https://www.isro.gov.in/gslv-f08-gsat-6a-mission/gslv-f08-gsat6a-brochure|title=GSLV F08 Brochure|publisher=ISRO|access-date=26 March 2018|archive-date=10 July 2021|archive-url=https://web.archive.org/web/20210710162623/https://www.isro.gov.in/gslv-f08-gsat-6a-mission/gslv-f08-gsat6a-brochure|url-status=dead}}</ref>
| total          = {{cvt|3040|kN}}
| SI             = {{cvt|262|isp}}
| burntime       = 154 seconds
| fuel           = [[Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]] / [[Unsymmetrical dimethylhydrazine|UDMH]]
| empty          = 
| gross          = 
| propmass       = {{cvt|42700|kg}} each
}}

{{Infobox rocket/Stage
| type           = stage
| stageno        = First<ref name=F08borchure/><ref name=F09borchure/>
| length         = {{cvt|20.2|m}}
| diameter       = {{cvt|2.8|m}}
| engines        = 1 [[S139 Booster]]
| thrust         = {{cvt|4846.9|kN}}
| SI             = {{cvt|237|isp}}
| burntime       = 100 seconds
| fuel           = [[HTPB]] ([[Solid rocket|solid]])
| propmass       = {{cvt|138200|kg}}
}}

{{Infobox rocket/Stage
| type           = stage
| stageno        = Second<ref name=F08borchure/><ref name=F09borchure/>
| length         = {{cvt|11.6|m}}
| diameter       = {{cvt|2.8|m}}
| engines        = 1 [[GS2 Vikas]] 4
| thrust         = {{cvt|846.8|kN}}
| SI             = {{cvt|295|isp}}
| burntime       = 139 seconds
| fuel           = N<sub>2</sub>O<sub>4</sub> / UDMH
| propmass       = {{cvt|39500|kg}}
}}

{{Infobox rocket/Stage
| type           = stage
| stageno        = Second GS2 (GL40)<ref name=F08borchure/><ref name=F11borchure>{{cite web|url=https://www.isro.gov.in/gsat-f11-gsat-7a-mission/gslv-f11-gsat-7a-brochure|title=GSLV F11 Brochure|publisher=ISRO}}</ref>
| length         = {{cvt|11.9|m}}
| diameter       = {{cvt|2.8|m}}
| engines        = 1 [[GS2 Vikas]] 4
| thrust         = {{cvt|846.8|kN}}
| SI             = {{cvt|295|isp}}
| burntime       = 149 seconds
 |fuel           = N<sub>2</sub>O<sub>4</sub> / UDMH
| propmass       = {{cvt|42500|kg}}
}}

{{Infobox rocket/Stage
| type           = stage
| diff           = GSLV Mk I
| stageno        = Third<ref name=F09borchure/>
| length         = [[N/A]]
| diameter       = {{cvt|2.8|m}}
| name           = CUS
| engines        = 1 [[KVD-1]]
| thrust         = {{cvt|70|kN}}
| SI             = {{cvt|462|isp}} 
| burntime       = [[N/A]]
| fuel           = [[Liquid oxygen|LOX]] / [[Liquid hydrogen|LH<sub>2</sub>]]
| propmass       = [[N/A]]
}}

{{Infobox rocket/Stage
| type           = stage
| diff           = GSLV Mk II
| stageno        = Third<ref name=F09borchure/>
| length         = {{cvt|8.7|m}}
| diameter       = {{cvt|2.8|m}}
| name           = CUS12
| engines        = 1 [[CE-7.5]]
| thrust         = {{cvt|75|kN}}
| SI             = {{cvt|454|isp}}
| burntime       = 718 seconds
| fuel           = [[Liquid oxygen|LOX]] / [[Liquid hydrogen|LH<sub>2</sub>]]
| propmass       = {{cvt|12800|kg}}
}}

{{Infobox rocket/Stage
| type           = stage
| diff           = GSLV Mk II
| stageno        = Third<ref name=F11borchure/>
| length         = {{cvt|9.9|m}}
| diameter       = {{cvt|2.8|m}}
| name           = CUS15
| engines        = 1 [[CE-7.5]]
| thrust         = {{cvt|75|kN}}
| SI             = {{cvt|454|isp}}
| burntime       = 846 seconds
| fuel           = [[Liquid oxygen|LOX]] / [[Liquid hydrogen|LH<sub>2</sub>]]
| propmass       = {{cvt|15000|kg}}
}}
|logo=[[File:GSLV logo.svg|100px|GSLV_logo]]}}

'''Geosynchronous Satellite Launch Vehicle''' ('''GSLV''') is a class of [[expendable launch systems]] operated by the [[ISRO|Indian Space Research Organisation]] (ISRO). GSLV has been used in [[List of GSLV launches|fifteen launches]] since 2001.