View source for Astronomy:Comparison of orbital rocket engines

{{short description|none}}

This page is an incomplete list of [[Engineering:Orbital spaceflight|orbital]] [[Engineering:Rocket engine|rocket engine]] data and specifications.

==Current, Upcoming, and In-Development rocket engines==
{| class="wikitable sortable"
|- class="is-sticky"
! Engine
! Origin
! Designer
! [[Engineering:Spacecraft|Vehicle]]
! Status
! [[Astronomy:Multistage rocket|Use]]
! [[Chemistry:Rocket propellant|Propellant]]
! Power cycle
! [[Physics:Specific impulse|Specific impulse]] (s){{efn|name=VSL|At sea level if denoted ''SL'', in vacuum otherwise}}
! [[Thrust]] (N){{efn|name=VSL}}
! [[Engineering:Combustion chamber|Chamber]] pressure (bar)
! Mass (kg)
! [[Engineering:Thrust-to-weight ratio|Thrust:{{zwsp}}weight ratio]]{{efn|Weight is calculated at [[Physics:Standard gravity|standard gravity]].}}
! Oxidiser:{{zwsp}}fuel ratio
|-
| AJ-10-190
| {{Flag|USA}}
| [[Company:Aerojet|Aerojet]]
| [[Engineering:Space Shuttle|Space Shuttle]], [[Engineering:Orion (spacecraft)|Orion]], Apollo CSM
| Active
| Upper
| [[Chemistry:Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]]/[[Chemistry:Monomethylhydrazine|MMH]]
| [[Physics:Pressure-fed engine|Pressure-fed]]
| {{Nts|316}}<ref name=":1">{{cite web|url=https://www.rocket.com/sites/default/files/documents/In-Space%20Data%20Sheets%209.13.19.pdf|title=In-Space Product Data Sheets|website=Aerojet Rocketdyne|date=September 13, 2019|access-date=January 29, 2020|archive-date=January 11, 2020|archive-url=https://web.archive.org/web/20200111232719/https://www.rocket.com/sites/default/files/documents/In-Space%20Data%20Sheets%209.13.19.pdf|url-status=dead}}</ref>
| {{Nts|26689}}<ref name=":1" />
| {{Nts|8.62}}<ref name=":1" />
| {{Nts|118}}<ref name=":1" />
| {{Nts|23.08}}
|
|-
| Archimedes
| {{NZL}} {{Flag|USA}}
| [[Company:Rocket Lab|Rocket Lab]]
| Neutron
| Development
| 1st
| CH<sub>4</sub>&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Staged combustion cycle|Staged, oxidizer-rich]]
|
| {{nts|730,000}}
|
|
|
|
|-
|[[Company:Relativity Space#Aeon R|Aeon-R]]
|{{Flag|USA}}
|[[Company:Relativity Space|Relativity Space]]
|Terran R
|Development
|1st, 2nd
|CH<sub>4</sub>&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
|[[Physics:Gas-generator cycle|Gas generator]]
|
|
|
|
|
|
|-
| BE-3
| {{Flag|USA}}
| [[Company:Blue Origin|Blue Origin]]
| [[Astronomy:New Shepard|New Shepard]]
| Active
| 1st
| [[Chemistry:Liquid hydrogen|LH<sub>2</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Combustion tap-off cycle|Combustion tap-off]]
|
| {{nts|490,000}}<ref name="blueorigin.com be-3">{{cite web|url=https://www.blueorigin.com/engines/be-3|title=BE-3|website=Blue Origin}}</ref>
|
|
|
|
|-
| BE-3U
| {{Flag|USA}}
| [[Company:Blue Origin|Blue Origin]]
| [[Astronomy:New Glenn|New Glenn]]
| Development
| 2nd
| [[Chemistry:Liquid hydrogen|LH<sub>2</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Engineering:Expander cycle|Expander, open]]
|
| {{nts|710,000}}<ref name="blueorigin.com be-3" />
|
|
|
|
|-
| BE-4
| {{Flag|USA}}
| [[Company:Blue Origin|Blue Origin]]
| [[Astronomy:New Glenn|New Glenn]], Vulcan
| Active<ref>{{Cite news |last=Belam |first=Martin |date=2024-01-08 |title=Nasa Peregrine 1 launch: Vulcan Centaur rocket carrying Nasa moon lander lifts off in Florida – live updates |url=https://www.theguardian.com/science/live/2024/jan/08/nasa-peregrine-1-launch-rocket-moon-latest-news-updates-live |access-date=2024-01-08 |work=the Guardian |language=en-GB |issn=0261-3077}}</ref> 
| 1st
| [[Chemistry:Methane|CH<sub>4</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Staged combustion cycle|Staged, oxidizer-rich]]
| {{nts|339}}<ref>{{cite web|title=Blue Origin's BE-4 Engine|url=https://forum.nasaspaceflight.com/index.php?topic=39674.msg1504802#msg1504802|access-date=13 May 2023}}</ref>
| {{nts|2,400,000}}<!-- {{convert|550000|lbf|kN|disp=flip}} --><ref name="sn20140917">{{cite news |last1=Ferster |first1=Warren |title=ULA To Invest in Blue Origin Engine as RD-180 Replacement |url=http://www.spacenews.com/article/launch-report/41901ula-to-invest-in-blue-origin-engine-as-rd-180-replacement |archive-url=https://archive.today/20140918114236/http://www.spacenews.com/article/launch-report/41901ula-to-invest-in-blue-origin-engine-as-rd-180-replacement |url-status=dead |archive-date=September 18, 2014 |accessdate=2014-09-19 |work=Space News |date=2014-09-17 }}</ref><ref name="BE-4">{{cite web |url=http://www.blueorigin.com/media/press_release/united-launch-alliance-and-blue-origin-announce-partnership-to-develop-new |title=BE-4 |publisher=[[Company:Blue Origin|Blue Origin]] |accessdate=17 September 2014 |url-status=dead |archive-url=https://web.archive.org/web/20140917232046/http://www.blueorigin.com/media/press_release/united-launch-alliance-and-blue-origin-announce-partnership-to-develop-new |archive-date=17 September 2014 }}</ref>
| {{nts|134}}<ref name="ars20160309">{{cite news |last=Berger |first=Eric |url=https://arstechnica.com/science/2016/03/behind-the-curtain-ars-goes-inside-blue-origins-secretive-rocket-factory/ |title=Behind the curtain: Ars goes inside Blue Origin's secretive rocket factory |work=[[Ars Technica]] |date=2016-03-09 |accessdate=2016-03-09 }}</ref>
|
|
|
|-
| CE-20
| {{IND}}
| [[Astronomy:Liquid Propulsion Systems Centre|LPSC]]
| [[Engineering:Geosynchronous Satellite Launch Vehicle Mark III|GSLV Mk III]]
| Active
| Upper
| [[Chemistry:Liquid hydrogen|LH<sub>2</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|434}}
| {{nts|196,500}}
| {{nts|60.00}}
| {{nts|588}}
| {{nts|34.1}}
| {{nts|5.05}}
|-
| CE-7.5
| {{IND}}
| [[Astronomy:Liquid Propulsion Systems Centre|LPSC]]
| GSLV Mk II 
| Active
| Upper
| [[Chemistry:Liquid hydrogen|LH<sub>2</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Staged combustion cycle|Staged]]
| {{nts|454}}<ref name="CE7.5">{{cite web | url=http://www.spaceflight101.com/gslv-launch-vehicle-information.html | title=GSLV Launch Vehicle Information | accessdate=6 January 2014|website=Spaceflight101.com|archive-url=https://web.archive.org/web/20140106133259/http://www.spaceflight101.com/gslv-launch-vehicle-information.html|archive-date=January 6, 2014|url-status=dead}}</ref>
| {{nts|73,500}}
| {{nts|58}}
| {{nts|445}}
| {{nts|16.85}}
|
|-
| E2
| {{Flag|USA}}
| [[Company:ABL Space Systems|ABL Space Systems]]
| RS1
| Active
| 1st
| [[Chemistry:RP-1|RP-1]] / [[Astronomy:LOX|LOX]]
| [[Physics:Gas-generator cycle|Gas generator]]
|
| {{nts|53,800}}<ref name="RS1">{{cite web|url=https://ablspacesystems.com/rs1/|title=RS1|website=ABL|language=en-US|access-date=2022-08-21}}</ref>
|
|
|
|
|-
| E2 Vacuum
| {{Flag|USA}}
| [[Company:ABL Space Systems|ABL Space Systems]]
| RS1
| Active
| 2nd
| [[Chemistry:RP-1|RP-1]] / [[Astronomy:LOX|LOX]]
| [[Physics:Gas-generator cycle|Gas generator]]
|
| {{nts|57,800}}<ref name="RS1" />
|
|
|
|
|-
| [[Company:Vast#Rocket engines|Engine-2]]
| {{Flag|USA}}
| [[Company:Vast|Vast]]
| {{TBA}}
| Development
| 1st
| [[Chemistry:RP-1|RP-1]] / [[Astronomy:LOX|LOX]]
| [[Physics:Staged combustion cycle|Staged, oxidizer-rich]]
| {{nts|327}}<ref name=":3">{{cite web|url=https://launcherspace.com/engine-2|title=Engine-2|website=LAUNCHER|language=en-US|access-date=2019-11-09|archive-date=October 26, 2021|archive-url=https://web.archive.org/web/20211026222634/https://launcherspace.com/engine-2|url-status=dead}}</ref> <br />{{nts|290}} <small>(SL)</small>
| {{nts|100,000}}<ref name=":3" />
|
|
|
| {{nts|2.62}}
|-
| [[Company:Vast#Rocket engines|Engine-2 Vacuum]]
| {{Flag|USA}}
| [[Company:Vast|Vast]]
| {{TBA}}
| Development
| 2nd
| [[Chemistry:RP-1|RP-1]] / [[Astronomy:LOX|LOX]]
| [[Physics:Staged combustion cycle|Staged, oxidizer-rich]]
| {{nts|365}}<ref name=":3" />
| {{nts|100,000}}<ref name=":3" />
|
|
|
| {{nts|2.62}}
|-
| [[Engineering:Graphite-Epoxy Motor|GEM 63]]
| {{Flag|USA}}
| [[Company:Northrop Grumman|Northrop Grumman]]
| [[Engineering:Atlas V|Atlas V]]
| Active
| [[Engineering:Solid rocket booster|Booster]]
| HTPB
| {{n/a|Solid fuel}}
| {{nts|279.06}} <small>(Vac)</small><ref>{{cite web
 | title       = NG Prop Catalog
 | url         = https://www.northropgrumman.com/wp-content/uploads/NG-Propulsion-Products-Catalog.pdf#page=43
 | date        = 2020-12-10
 | archive-url  = https://archive.today/20201210223443/https://www.northropgrumman.com/wp-content/uploads/NG-Propulsion-Products-Catalog.pdf
 | archive-date = 2020-12-10
}}</ref>
| {{nts|1,662,745}}<ref name=aerojet-gem63>{{cite web| title=Developing Vulcan Centaur| archive-url=https://web.archive.org/web/20190825004201/https://www.ulalaunch.com/docs/default-source/evolution/190408_ulapanel_all_compressed.pdf/|archive-date=August 25, 2019|url=https://www.ulalaunch.com/docs/default-source/evolution/190408_ulapanel_all_compressed.pdf/|url-status=live|date=April 4, 2019|website=ULA}}</ref>
|
|{{nts|49,300}} with&nbsp;fuel
|
|
|-
| [[Engineering:Graphite-Epoxy Motor|GEM 63XL]]
| {{Flag|USA}}
| [[Company:Northrop Grumman|Northrop Grumman]]
| Vulcan
| Active
| [[Engineering:Solid rocket booster|Booster]]
| HTPB
| {{n/a|Solid fuel}}
| {{nts|280.3}} <small>(Vac)</small><ref>{{cite web
 | title       = NG Prop Catalog
 | url         = https://www.northropgrumman.com/wp-content/uploads/NG-Propulsion-Products-Catalog.pdf#page=44
 | date        = 2020-12-10
 | archive-url  = https://archive.today/20201210223443/https://www.northropgrumman.com/wp-content/uploads/NG-Propulsion-Products-Catalog.pdf
 | archive-date = 2020-12-10
}}</ref>
| {{Nts|2025720}}<ref name=aerojet-gem63 />
|
| {{nts|53,400}} with&nbsp;fuel
|
|
|-
| Hadley
| {{Flag|USA}}
| [[Company:Ursa Major Technologies|Ursa Major Technologies]]
| [[Engineering:Astra (American spaceflight company)#Rocket 4|Rocket 4]]
|Active
| 2nd
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Staged combustion cycle|Staged, oxidizer-rich]]
|
| {{nts|22,241}} <small>(SL)</small><ref>{{cite web|url=https://www.ursamajortechnologies.com/engines|title=The Engines|website=Ursa Major Technologies|language=en-US|access-date=2017-05-20}}</ref>
|
|
|
|
|-
|{{Flag|Germany}}
|[[Company:Rocket Factory Augsburg|Rocket Factory Augsburg]]
|[[Company:Rocket Factory Augsburg#Launch vehicle|RFA One]]
|Development
|1st, 2nd
|RP-1/LOX
|[[Physics:Staged combustion cycle|Staged combustion]]
|{{nts|350}},<br/>325 <small>(SL)</small><ref name=":10">{{Cite web |last=Arizaga |first=Monica |date=2022-03-18 |title="Helix" - public names RFA engine |url=https://www.rfa.space/helix-public-names-rfa-engine/ |access-date=2023-09-28 |website=Rocket Factory Augsburg |language=en-US}}</ref>
|{{nts|100,000}}<ref name=":10" />
|{{nts|100}}<ref>{{Cite web |last=Arizaga |first=Monica |date=2022-07-13 |title=RFA successfully hot fires Helix engine for a total of 74 seconds |url=https://www.rfa.space/rfa-successfully-hot-fires-helix-engine-for-a-total-of-74-seconds/ |access-date=2023-09-28 |website=Rocket Factory Augsburg |language=en-US}}</ref>
|
|
|
|-
| HM-7B
| {{EUR}}
| Snecma
| [[Engineering:Ariane 2|Ariane 2]], [[Engineering:Ariane 3|3]], [[Engineering:Ariane 4|4]], [[Engineering:Ariane 5|5 ECA]]
| Active
| Upper
| [[Chemistry:Liquid hydrogen|LH<sub>2</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|446}}<ref name="HM7B_Astrium">{{cite web |url=http://cs.astrium.eads.net/sp/launcher-propulsion/rocket-engines/hm7b-rocket-engine.html |title=HM-7 and HM-7B Rocket Engine - Thrust Chamber |publisher=[[Company:Airbus Defence and Space|Airbus Defence and Space]] |access-date=1 November 2015 |url-status=dead |archive-url=https://web.archive.org/web/20150318003815/http://cs.astrium.eads.net/sp/launcher-propulsion/rocket-engines/hm7b-rocket-engine.html |archive-date=2015-03-18}}</ref> <br/>{{nts|310}} <small>(SL)</small><ref name="HM7B_Astronautix">{{cite encyclopedia |url=http://www.astronautix.com/h/hm7-b.html |archive-url=https://web.archive.org/web/20161227204239/http://astronautix.com/h/hm7-b.html |url-status=dead |archive-date=December 27, 2016 |title=HM7-B |first=Mark |last=Wade |encyclopedia=Encyclopedia Astronautica |access-date=10 June 2017}}</ref>
| {{nts|64,800}}<ref name="HM7B_Astrium" /><br/> {{nts|43,600}} <small>(SL)</small><ref name="HM7B_Astronautix" />
| {{nts|37}}<ref name="HM7B_Astrium" />
| {{nts|165}}<ref name="HM7B_Astrium" />
| {{nts|43.25}}
| {{nts|5}}
|-
| HyPER-15<ref>https://www.spaceintel101.com/post/south-korea-s-innospace-will-launch-brazilian-payload-on-inaugural-flight-from-alc%C3%A2ntara</ref>
| {{KOR}}
| Hanbit-Nano, -Micro, -Mini
| Development
| 1st
| [[Chemistry:Paraffin wax|Paraffin]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Electric-pump-fed engine|Electric pump]]
| {{nts|292}}
| {{nts|150,000}}<ref>{{cite web|title=innospacecorp on Twitter: "Very proud and excited as we get ready to test the world's largest LOx/Paraffin Hybrid rocket engine developed for a smallsat Launcher.The HyPER-15, a 150kN Hybrid rocket engine, is scheduled to test this month at our Geumsan Engine Test Facility. Keep an eye out for our updates!"|url=https://twitter.com/innospacecorp/status/1410563047266033669|access-date=2021-07-26|website=Twitter|language=en}}</ref>
|
|
|
|
|-
| LE-5B
| {{JPN}}
| [[Company:Mitsubishi Heavy Industries|Mitsubishi]], JAXA
| [[Engineering:H-IIA|H-IIA]], <br />[[Engineering:H-IIB|H-IIB]]
| Active
| Upper
| [[Chemistry:Liquid hydrogen|LH<sub>2</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Engineering:Expander cycle#Expander bleed cycle|Expander, open]]
| {{nts|447}}<ref name="LE-5B">{{cite encyclopedia |url=http://www.astronautix.com/engines/le5b.htm |title=LE-5B |encyclopedia=Encyclopedia Astronautica |accessdate=13 January 2016 |url-status=dead |archive-url=https://web.archive.org/web/20161027060527/http://www.astronautix.com/engines/le5b.htm |archive-date=27 October 2016 }}</ref>
| {{nts|137,000}}
| {{nts|36.0}}
| {{nts|269}}
| {{nts|51.93}}
| {{nts|5}}
|-
| LE-7A
| {{JPN}}
| [[Company:Mitsubishi Heavy Industries|Mitsubishi]], JAXA
| [[Engineering:H-IIA|H-IIA]], <br />[[Engineering:H-IIB|H-IIB]]
| Active
| 1st
| [[Chemistry:Liquid hydrogen|LH<sub>2</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Staged combustion cycle|Staged]]
| {{nts|438}}<ref name="LE-7A">{{cite encyclopedia |url=http://www.astronautix.com/engines/le7a.htm |title=LE-7A |encyclopedia=Encyclopedia Astronautica |accessdate=13 January 2016 |url-status=dead |archive-url=https://web.archive.org/web/20170228075700/http://www.astronautix.com/engines/le7a.htm |archive-date=28 February 2017 }}</ref> <br/>{{nts|338}} <small>(SL)</small><ref name="LE-7A" />
| {{nts|1,098,000}}<br/>{{nts|870,000}} <small>(SL)</small>
| {{nts|120}}
| {{nts|1,800}}
| {{nts|65.9}}
| {{nts|5.9}}
|-
|LE-9
|{{JPN}}
|[[Company:Mitsubishi Heavy Industries|Mitsubishi]], JAXA
|[[Engineering:H3 (rocket)|H-3]]
|Development
|1st
|[[Chemistry:Liquid hydrogen|LH<sub>2</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
|[[Engineering:Expander cycle#Expander bleed cycle|Expander, open]]
|{{nts|425}}<ref>{{Cite web |title=LE-9 |url=https://www.jaxa.jp/press/2016/06/files/20160614_h3_01_j.pdf}}</ref>
|{{nts|147,1000}}
|{{nts|100
}}
|{{nts|2400}}
|{{nts|62.5}}
|{{nts|5}}.9
|-
| [[Engineering:Firefly Alpha|Lightning 1]]
| {{Flag|USA}}
| [[Company:Firefly Aerospace|Firefly Aerospace]]
| [[Engineering:Firefly Alpha|Alpha]]
| Active
| 2nd
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Combustion tap-off cycle|Combustion tap-off]]
| {{nts|322}}<ref name=":7">{{cite web|url=https://firefly.com/launch-alpha/|title=Launch-alpha|website=Firefly Aerospace|language=en-US|access-date=2020-02-02|archive-date=February 24, 2021|archive-url=https://web.archive.org/web/20210224060554/https://firefly.com/launch-alpha/|url-status=dead}}</ref>
| {{nts|70,100}}<ref name=":7" />
|
|
|
|
|-
| Merlin 1D FT
| {{Flag|USA}}
| [[Company:SpaceX|SpaceX]]
| Falcon [[Engineering:Falcon 9 Block 5|9 B5]], [[Engineering:Falcon Heavy|Heavy]]
| Active
| 1st
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|311}}
| {{nts|914,000}}<ref name="Merlin 1D Full Thrust">{{cite web | url=http://www.spacex.com/news/2013/03/26/merlin-engines | title=Merlin 1D | work=SpaceX | accessdate=26 February 2016 | url-status=dead | archive-url=https://web.archive.org/web/20150906071827/http://www.spacex.com/news/2013/03/26/merlin-engines | archive-date=6 September 2015 }}</ref> <br/>{{nts|845,000}} <small>(SL)</small><ref name="Merlin 1D Full Thrust" />
|{{nts|108.0}}<ref>{{Cite web |title=Evolution of the SpaceX Merlin engine |url=http://www.b14643.de/Spacerockets_2/United_States_1/Falcon-9/Merlin/index.htm |access-date=2022-05-08 |website=www.b14643.de}}</ref>
| {{nts|470}}
| {{nts|194.5}}<ref name="Merlin 1D Full Thrust" />
|
|-
| Merlin Vacuum 1D
| {{Flag|USA}}
| [[Company:SpaceX|SpaceX]]
| Falcon [[Engineering:Falcon 9 Block 5|9 B5]], [[Engineering:Falcon Heavy|Heavy]]
| Active
| 2nd
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|348}}<ref name="Merlin Vacuum 1D">{{cite web | title=SpaceX Falcon 9 Product Page | url=http://www.spacex.com/falcon9 | accessdate=2015-11-01 | url-status=dead | archive-url=https://web.archive.org/web/20140805175724/http://www.spacex.com/falcon9 | archive-date=2014-08-05 }}</ref>
| {{nts|981,000}}<ref>{{cite web|title=SpaceX|url=http://www.spacex.com/|access-date=2020-09-24|website=SpaceX|language=en}}</ref>
|
|
|
| {{nts|2.36}}
|-
| [[Engineering:M10 (rocket engine)|M10]]
| {{Flag|EU}}
| [[Company:Avio|Avio]]
| Vega-E<ref name="avioM10">{{cite web |url=https://www.avio.com/it/m-10 |title=Motore M10 |publisher=[[Company:Avio|Avio]] |language=Italian |trans-title=Engine M10 |access-date=2021-03-24}}</ref>
| Development
| Upper<ref name="avioM10" />
| CH<sub>4</sub>&thinsp;/&thinsp;[[Physics:Liquid oxygen|LOX]]<ref name="avioM10" />
| [[Engineering:Expander cycle|Expander, closed]]
| {{nts|362}}<ref name="avioM10" />
| {{nts|98,000}}<ref name="avioM10" />
|
| 
| 
| {{nts|3.4}}<ref name="avioM10" />
|-
| [[Astronomy:NK-33|NK-33A (AJ26-62)]], <br/><small>11Д111&thinsp;/&thinsp;14Д15</small>
| {{Flag|USSR}}
| [[Company:JSC Kuznetsov|JSC Kuznetsov]]
| Antares 100, [[Engineering:Soyuz-2-1v|Soyuz-2-1v]]
| Active
| 1st
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Staged combustion cycle|Staged, oxidizer-rich]]
| {{nts|331}}<ref name="NK33">{{cite encyclopedia |url=http://www.astronautix.com/engines/nk33.htm |title=NK-33 |encyclopedia=Encyclopedia Astronautica |accessdate=30 January 2014 |archive-url=https://web.archive.org/web/20020625124013/http://www.astronautix.com/engines/nk33.htm |archive-date=25 June 2002 |url-status=dead }}</ref><br/>{{nts|297}} <small>(SL)</small>
| {{nts|1,680,000}} <br/>{{nts|1,510,000}} <small>(SL)</small>
| {{nts|145}}
| {{nts|1,222}}
| {{nts|136.8}}
|
|-
| [[Engineering:P80 (rocket stage)|P80]]
| {{EUR}}
| [[Company:Avio|Avio]]
| [[Engineering:Vega (rocket)|Vega]]
| Active
| 1st
| HTPB
| {{n/a|Solid fuel}}
| {{nts|280}}<ref name=":4">{{cite web|url=http://www.avio.com/en/vega/vega/vega-1-stadio-p80-motor/|title=VEGA: 1° stage - P80 Motor|website=Avio.com|language=en-US|access-date=2020-01-20}}</ref>
| {{nts|3,015,000}}<ref name=":4" />
| {{nts|88}}
| {{nts|96,000}} with&nbsp;fuel
|
|
|-
| [[Engineering:P120 (rocket stage)|P120]]
| {{EUR}}
| [[Company:Avio|Avio]]
| [[Engineering:Ariane 6|Ariane 6]], <br>Vega-C
| Active
| [[Engineering:Solid rocket booster|Booster]], 1st
| HTPB
| {{n/a|Solid fuel}}
| {{nts|279}}<ref name="P120Ctestfire">[https://www.ariane.group/wp-content/uploads/2018/07/P120C-successful-testfire.pdf Press release: Successful first test firing for the P120C solid rocket motor for Ariane 6 and Vega-C]</ref>
| {{nts|4,650,000}}<ref name="P120Ctestfire" />
| {{nts|105}}
| {{nts|153,000}} with&nbsp;fuel<ref name="P120Ctestfire" />
|
|
|-
| [[Engineering:Polar Satellite Launch Vehicle|S139]]
| {{IND}}
| [[Astronomy:Satish Dhawan Space Centre|SDSC]]
| PSLV 
| Active
| 1st
| HTPB
| {{n/a|Solid fuel}}
| {{nts|269}}<ref name="PSLV-1">{{cite web | url=http://www.astronautix.com/engines/pslv1.htm | title=PSLV-1 | accessdate=4 April 2014 | url-status=dead | archive-url=https://web.archive.org/web/20140805133000/http://astronautix.com/engines/pslv1.htm | archive-date=5 August 2014 }}</ref>
| {{nts|486,0000}}
| {{nts|58}}
| {{nts|160,200}} <br/>with fuel
|
|
|-
| Raptor<ref name="SpaceX Raptor"/>
| {{Flag|USA}}
| [[Company:SpaceX|SpaceX]]
| [[Engineering:SpaceX Starship|Starship]]
| Development
| 1st, 2nd
| CH<sub>4</sub>&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Staged combustion cycle|Staged, full-flow]]
| {{nts|350}}<ref name=":9">{{Cite news|url=https://twitter.com/elonmusk/status/1171118891671490560|title=Sea level Raptor’s vacuum Isp is ~350 sec, but ~380 sec with larger vacuum-optimized nozzle|date=2019-09-09|language=en-US}}</ref> <br/>{{nts|327}} <small>(SL)</small>
| {{nts|2640000}} <small>(SL)</small><ref name=":0">{{Cite news|url=https://twitter.com/elonmusk/status/1657249739925258240|title=Raptor V3 just achieved 350 bar chamber pressure (269 tons of thrust). Congrats to @SpaceX propulsion team! Starship Super Heavy Booster has 33 Raptors, so total thrust of 8877 tons or 19.5 million pounds.|date=2023-05-13|language=en-US}}</ref>
| {{nts|350}}<ref name=":0" />
| {{nts|1600}} {{abbr|est.|estimate}}<ref name="everydayastronaut">{{cite web|url=https://www.youtube.com/watch?v=ALiNmzoo1_E|author=Tim Dodd|title=Raptor&nbsp;1 VS Raptor&nbsp;2: What's New // What's Different|website=[[Company:YouTube|YouTube]] |date=14 July 2022}}</ref>
| {{nts|168}} {{abbr|est.|estimate}}<ref name=":0" /><ref name="everydayastronaut" />
| {{nts|3.6}}<ref name="DRAFT_EA-201908">{{cite web |author1=Katy Groom |author2=Rebecca Bolt |author3=Resa Cancro |author4=Patrice Hall |author5=Kandi Lawson |author6=Mark Mercadante |author7=Michelle Moore |author8=Jane Provancha |author9=Matthew Thompson |author10=Don Dankert |author11=James Brooks |author12=Daniel Czelusnaik |author13=Eva Long |title=Draft Environmental Assessment for the SpaceX Starship and Super Heavy Launch Vehicle at Kennedy Space Center (KSC) |url=https://netspublic.grc.nasa.gov/main/20190801_Final_DRAFT_EA_SpaceX_Starship.pdf |website=netspublic.grc.nasa.gov |publisher=Space Exploration Technologies Corporation |accessdate=5 August 2019 |page=250 |language=en |date=1 August 2019 |archive-url=https://web.archive.org/web/20190802123140/https://netspublic.grc.nasa.gov/main/20190801_Final_DRAFT_EA_SpaceX_Starship.pdf |archive-date=2 August 2019 |url-status=live }}</ref>
|-
| Raptor Vacuum<ref name="SpaceX Raptor">{{cite web | url=http://www.nasaspaceflight.com/2014/03/spacex-advances-drive-mars-rocket-raptor-power/ | title=Spacex Raptor | publisher=NASA SpaceFlight | date=7 March 2014 | accessdate=2 July 2015}}</ref>
| {{Flag|USA}}
| [[Company:SpaceX|SpaceX]]
| Starship
| Development
| 2nd
| CH<sub>4</sub>&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Staged combustion cycle|Staged, full-flow]]
| {{nts|380}}<ref name=":9" />
| {{nts|2640000|prefix=>}} <ref name=":0" />
| {{nts|350}}<ref name=":0" />
| {{nts|1600|prefix=>}}<ref name="everydayastronaut" />
| {{nts|120|prefix=<}}<ref name="tweet15Oct19">Elon Musk on Twitter: [https://twitter.com/elonmusk/status/1183866120240955392 Max thrust version of Raptor should achieve true T/W > 170. Target is 1.5 ton engine with >260 t-F. Max Isp version should achieve ~380 sec, but T/W probably <120 due to big nozzle. These are just guesses for now.]</ref>
| {{nts|3.6}}<ref name="DRAFT_EA-201908"/>
|-
| RD-0124, <br/><small>14Д23</small>
| {{RUS}}
| KBKhA
| Soyuz-2.1b, <br/>[[Engineering:Soyuz-2-1v|Soyuz-2-1v]], <br/>[[Engineering:Angara (rocket family)|Angara]]
| Active
| 2nd, 3rd
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Staged combustion cycle|Staged, oxidizer-rich]]
| {{nts|359}}<ref name="RD-0124">{{cite web|url=http://www.kbkha.ru/?p=8&cat=8&prod=51|title=RD-0124 Engine|publisher=KBKha|accessdate=7 January 2016}}</ref>
| {{nts|294,300}}
| {{nts|160}}
| {{nts|520}}
| {{nts|57.7}}
|
|-
| RD-0146D
| {{RUS}}
| KBKhA
| [[Engineering:Angara (rocket family)|Angara]]
| Development
| Upper
| [[Chemistry:Liquid hydrogen|LH<sub>2</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Engineering:Expander cycle|Expander, closed]]
| {{nts|470}}<ref name="RD-0146">{{cite web|url=http://www.khrunichev.ru/main.php?id=304|title=ГКНПЦ имени М.В.Хруничева {{!}} Жидкостный ракетный двигатель РД - 0146|website=www.khrunichev.ru|access-date=2019-07-27|archive-date=December 29, 2021|archive-url=https://web.archive.org/web/20211229111710/http://www.khrunichev.ru/main.php?id=304|url-status=dead}}</ref>
| {{nts|68,600}}
| {{nts|59}}
|
|
|
|-
| RD-107A, <br/><small>14Д22</small>
| {{RUS}}
| [[Company:NPO Energomash|NPO Energomash]]
| [[Engineering:Soyuz-FG|Soyuz-FG]], -2
| Active
| 1st
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|320.2}}<ref name="RD-107A and RD-108A">{{cite web | url=http://www.npoenergomash.ru/eng/dejatelnost/engines/rd107/ | title=RD-107A and RD-108A | work=NPO Energomash | accessdate=30 June 2015}}</ref> <br/>{{nts|263.3}} <small>(SL)</small>
| {{nts|1,019,892}} <br/>{{nts|839,449}} <small>(SL)</small>
| {{nts|61.2}}
| {{nts|1,090}}
| {{nts|78.53}}
|
|-
| RD-108A, <br/><small>14Д21</small>
| {{RUS}}
| [[Company:NPO Energomash|NPO Energomash]]
| [[Engineering:Soyuz-FG|Soyuz-FG]], -2
| Active
| 2nd
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|320.6}}<ref name="RD-107A and RD-108A" /> <br/>{{nts|257.7}} <small>(SL)</small>
| {{nts|921,825}} <br/>{{nts|792,377}} <small>(SL)</small>
| {{nts|55.5}}
| {{nts|1,075}}
| {{nts|75.16}}
|
|-
| RD-171M,{{efn|name=RD-170|Most powerful multi-chamber rocket engine in the world}} <small>11Д520</small>
| {{RUS}}
| [[Company:NPO Energomash|NPO Energomash]]
| [[Engineering:Soyuz-5 (rocket)|Soyuz-5]], [[Engineering:Zenit-2M|Zenit-2M]], [[Engineering:Zenit-3SL|-3SL]], [[Engineering:Zenit-3SLB|-3SLB]], -3SLBF
| Active
| 1st
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Staged combustion cycle|Staged, oxidizer-rich]]
| {{nts|337.2}}<ref name="RD-171M">{{cite web | url=http://www.npoenergomash.ru/eng/dejatelnost/engines/rd171m/ | title=RD-171M | work=NPO Energomash | accessdate=30 June 2015}}</ref> <br/>{{nts|309.5}} <small>(SL)</small>
| {{nts|7,904,160}} <br/>{{nts|7,256,921}} <small>(SL)</small>
| {{nts|250}}
| {{nts|9,300}}
| {{nts|79.57}}
|
|-
| RD-180
| {{RUS}}
| [[Company:NPO Energomash|NPO Energomash]]
| [[Engineering:Atlas V|Atlas V]], [[Engineering:Atlas III|III]]
| Active
| 1st
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Staged combustion cycle|Staged, oxidizer-rich]]
| {{nts|338.4}}<ref name="RD-180">{{cite web | url=http://www.npoenergomash.ru/eng/dejatelnost/engines/rd180/ | title=RD-180 | work=NPO Energomash | accessdate=30 June 2015}}</ref> <br/>{{nts|311.9}} <small>(SL)</small>
| {{nts|4,152,136}} <br/>{{nts|3,826,555}} <small>(SL)</small>
| {{nts|261.7}}
| {{nts|5,480}}
| {{nts|71.2}}
| {{nts|2.72}}
|-
| RD-191
| {{RUS}}
| [[Company:NPO Energomash|NPO Energomash]]
| [[Engineering:Angara (rocket family)|Angara]]
| Active
| 1st
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Staged combustion cycle|Staged, oxidizer-rich]]
| {{nts|337.5}}<ref name="RD-191">{{cite web | url=http://www.npoenergomash.ru/eng/dejatelnost/engines/rd191/ | title=RD-191 | work=NPO Energomash | accessdate=30 June 2015}}</ref> <br/>{{nts|311.2}} <small>(SL)</small>
| {{nts|2,084,894}} <br/>{{nts|1,922,103}} <small>(SL)</small>
| {{nts|262.6}}
| {{nts|2,200}}
| {{nts|89.09}}
|
|-
| RD-193
| {{RUS}}
| [[Company:NPO Energomash|NPO Energomash]]
| [[Engineering:Soyuz-2-1v|Soyuz-2-1v]]
| Development
| 1st
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Staged combustion cycle|Staged, oxidizer-rich]]
| {{nts|337.5}}<ref name="RD-193 Engine">{{Cite news|title = Универсальный ракетный двигатель РД-193. Мнение инженера-разработчика|url = http://novosti-kosmonavtiki.ru/mag/2013/1004/13840/|publisher = Журнал «Новости космонавтики»|access-date = January 6, 2016|archive-date = October 18, 2016|archive-url = https://web.archive.org/web/20161018210036/http://novosti-kosmonavtiki.ru/mag/2013/1004/13840/|url-status = dead}}</ref> <br/>{{nts|311.2}} <small>(SL)</small>
| {{nts|2,084,894}} <br/>{{nts|1,922,103}} <small>(SL)</small>
|
| {{nts|1,900}}
| {{nts|103.15}}
|
|-
| RD-276, <br/><small>14Д14М</small>
| {{RUS}}
| [[Company:NPO Energomash|NPO Energomash]]
| [[Engineering:Proton-M|Proton-M]] 
| Active
| 1st
| [[Chemistry:Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]]&thinsp;/&thinsp;UDMH
| [[Physics:Staged combustion cycle|Staged, oxidizer-rich]]
| {{nts|315.8}}<ref name="RD-276">{{cite web | url=http://www.engine.space/eng/dejatelnost/engines/rd-276/ | title=RD-276 "Comrade" | work=NPO Energomash | accessdate=14 October 2019 | archive-date=January 27, 2022 | archive-url=https://web.archive.org/web/20220127052519/https://engine.space/eng/dejatelnost/engines/rd-276/ | url-status=dead }}</ref> <br/>{{nts|288}} <small>(SL)</small>
| {{nts|1,831,882}} <br/>{{nts|1,671,053}} <small>(SL)</small>
| {{nts|168.5}}
| {{nts|1,120}}
| {{nts|171.2}}
|
|-
| RD-801
| {{UKR}}
| [[Company:Yuzhnoye Design Office|Pivdenne]]/{{zwsp}}[[Company:Yuzhmash|Pivdenmash]]
| Mayak 
| Development
| 1st
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Staged combustion cycle|Staged, oxidizer-rich]]
| {{nts|336}} <ref name="yuzhnoye.com RD-801">{{cite web|url=https://www.yuzhnoye.com/en/technique/rocket-engines/steering/rd-801/|title=RD-801|website=www.yuzhnoye.com|access-date=2020-01-19|archive-date=February 25, 2022|archive-url=https://web.archive.org/web/20220225183308/https://www.yuzhnoye.com/en/technique/rocket-engines/steering/rd-801/|url-status=dead}}</ref> <br/>{{nts|300.7}} <small>(SL)</small>
| {{nts|1,339,255}} <br/>{{nts|1,198,608}} <small>(SL)</small>
| {{nts|180}}
| {{nts|1,630}}
| 
| {{nts|2.65}}
|-
| RD-809K
| {{UKR}}
| [[Company:Yuzhnoye Design Office|Pivdenne]]/{{zwsp}}[[Company:Yuzhmash|Pivdenmash]]
| Mayak
| Development
| Upper
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Staged combustion cycle|Staged, oxidizer-rich]]
| {{nts|352}} <ref name="yuzhnoye.com RD-801" />
| {{nts|98,067}}
|
| {{nts|330}}
| 
| {{nts|2.62}}
|-
| RD-810
| {{UKR}}
| [[Company:Yuzhnoye Design Office|Pivdenne]]/{{zwsp}}[[Company:Yuzhmash|Pivdenmash]]
| Mayak, [[Engineering:Zenit (rocket family)|Zenit]]
| Development
| 1st
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Staged combustion cycle|Staged, oxidizer-rich]]
| {{nts|335.5}} <ref>{{cite web|url=https://www.yuzhnoye.com/en/technique/rocket-engines/steering/rd-810/|title=RD-810|website=www.yuzhnoye.com|access-date=2020-01-19|archive-date=February 25, 2022|archive-url=https://web.archive.org/web/20220225183306/https://www.yuzhnoye.com/en/technique/rocket-engines/steering/rd-810/|url-status=dead}}</ref> <br/>{{nts|299}} <small>(SL)</small>
| {{nts|2,104,890}} <br/>{{nts|1,876,149}} <small>(SL)</small>
| {{nts|180}}
| {{nts|2,800}}
| 
| {{nts|2.65}}
|-
| RD-843
| {{UKR}}
| [[Company:Yuzhnoye Design Office|Pivdenne]]/{{zwsp}}[[Company:Yuzhmash|Pivdenmash]]
| [[Engineering:Vega (rocket)|Vega]] 
| Active
| upper
| [[Chemistry:Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]]&thinsp;/&thinsp;UDMH
| [[Physics:Pressure-fed engine|Pressure-fed]]
| {{nts|315.5}}
| {{nts|2,452}}
| {{nts|20.4}}
| {{nts|15.93}}
| 
| {{nts|2.0}}
|-
| RD-861K
| {{UKR}}
| [[Company:Yuzhnoye Design Office|Pivdenne]]/{{zwsp}}[[Company:Yuzhmash|Pivdenmash]]
| Cyclone-4M
| Development
| 2nd
| [[Chemistry:Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]]&thinsp;/&thinsp;UDMH
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|330}} <ref>{{cite web|url=https://www.yuzhnoye.com/en/technique/rocket-engines/marching/rd-861k/|title=RD-861K|website=www.yuzhnoye.com|access-date=2020-01-19|archive-date=February 25, 2022|archive-url=https://web.archive.org/web/20220225183305/https://www.yuzhnoye.com/en/technique/rocket-engines/marching/rd-861k/|url-status=dead}}</ref>
| {{nts|77,629}}
|
| {{nts|207}}
| 
| {{nts|2.41}}
|-
| RD-870
| {{UKR}}
| [[Company:Yuzhnoye Design Office|Pivdenne]]/{{zwsp}}[[Company:Yuzhmash|Pivdenmash]]
| Cyclone-4M
| Development
| 1st
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Staged combustion cycle|Staged, oxidizer-rich]]
| {{nts|340}} <ref>{{cite web|url=https://www.yuzhnoye.com/en/technique/rocket-engines/steering/rd-870/|website=Yuzhnoye SDO|access-date=2020-01-19|title=RD-870|archive-date=February 25, 2022|archive-url=https://web.archive.org/web/20220225183252/https://www.yuzhnoye.com/en/technique/rocket-engines/steering/rd-870/|url-status=dead}}</ref> <br/>{{nts|301.5}} <small>(SL)</small>
| {{nts|876,715}} <br/>{{nts|777,667}} <small>(SL)</small>
|
| {{nts|1353}}
|
| {{nts|2.684}}
|-
| [[Engineering:Firefly Alpha|Reaver 1]]
| {{Flag|USA}}
| [[Company:Firefly Aerospace|Firefly Aerospace]]
| [[Engineering:Firefly Alpha|Alpha]]
| Active
| 1st
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Combustion tap-off cycle|Combustion tap-off]]
| {{nts|295.6}}<ref name=":7" />
| {{nts|184,000}}<ref name=":7" />
|
|
|
|
|-
| RL-10A-4-2<ref name=":2">{{cite web|url=https://www.rocket.com/files/aerojet/documents/Capabilities/PDFs/RL10%20data%20sheet%20Feb%202016.pdf|title=RL10 Data Sheet-1|date=Feb 2016|access-date=March 23, 2019|archive-url=https://web.archive.org/web/20160705071843/http://www.rocket.com/files/aerojet/documents/Capabilities/PDFs/RL10%20data%20sheet%20Feb%202016.pdf|archive-date=July 5, 2016|url-status=dead}}</ref>
| {{Flag|USA}}
| [[Company:Aerojet Rocketdyne|Aerojet Rocketdyne]]
| Atlas [[Engineering:Atlas III|IIIB]], [[Engineering:Atlas V|V]]
| Active
| Upper
| [[Chemistry:Liquid hydrogen|LH<sub>2</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Engineering:Expander cycle|Expander, closed]]
| {{nts|451}}
| {{nts|99,195}}
| {{nts|42}}
| {{nts|168}}
| {{nts|60.27}}
| {{nts|5.5}}
|-
| RL-10B-2<ref name=":2" />
| {{Flag|USA}}
| [[Company:Aerojet Rocketdyne|Aerojet Rocketdyne]]
| [[Engineering:Delta III|Delta III]], [[Engineering:Delta IV|IV]], [[Astronomy:Space Launch System|SLS]]
| Active
| Upper
| [[Chemistry:Liquid hydrogen|LH<sub>2</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Engineering:Expander cycle|Expander, closed]]
| {{nts|465.5}}
| {{nts|110,093}}
| {{nts|44}}
| {{nts|301}}
| {{nts|37.27}}
| {{nts|5.88}}
|-
| RL-10C-1<ref name=":2" />
| {{Flag|USA}}
| [[Company:Aerojet Rocketdyne|Aerojet Rocketdyne]]
| [[Engineering:Delta III|Delta III]], [[Engineering:Delta IV|IV]], [[Astronomy:Space Launch System|SLS]], Vulcan
| Active
| Upper
| [[Chemistry:Liquid hydrogen|LH<sub>2</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Engineering:Expander cycle|Expander, closed]]
| {{nts|450}}
| {{nts|101,820}}
| {{nts|44}}
| {{nts|191}}
| {{nts|54.5}}
| {{nts|5.5}}
|-
| [[Engineering:RS-25|RS-25]]
| {{Flag|USA}}
| [[Company:Rocketdyne|Rocketdyne]]
| [[Engineering:Space Shuttle|Space Shuttle]], [[Astronomy:Space Launch System|SLS]]
| Active
| 1st
| [[Chemistry:Liquid hydrogen|LH<sub>2</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Staged combustion cycle|Staged, fuel-rich]]
| {{nts|452.3}} <br/>{{nts|366}} <small>(SL)</small>
| {{nts|2,279,000}} <br/>{{nts|1,860,000}} <small>(SL)</small><ref name="aerojet">Aerojet Rocketdyne, [https://www.rocket.com/rs-25-engine RS-25 Engine] {{Webarchive|url=https://web.archive.org/web/20151229215644/https://www.rocket.com/rs-25-engine |date=2015-12-29 }} (accessed July 22, 2014)</ref>
| {{nts|206.4}}
| {{nts|3,526}}
| {{nts|53.79}}
|
|-
| RS-68A{{efn|Most powerful hydrogen-fueled engine in the world}}
| {{Flag|USA}}
| Rocketdyne
| [[Engineering:Delta IV|Delta IV]], [[Engineering:Delta IV Heavy|IV Heavy]]
| Active
| 1st
| [[Chemistry:Liquid hydrogen|LH<sub>2</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|411}}<ref name="RS-68A">{{cite web | title=RS-68A|url=https://www.rocket.com/space/liquid-engines/rs-68a | publisher=www.rocket.com|accessdate=19 January 2020}}</ref> <br/>{{nts|362}} <small>(SL)</small>
| {{nts|3,558,577}} <br/>{{nts|3,135,996}} <small>(SL)</small>
| {{nts|109}}
| {{nts|6,686}}
| {{nts|54.31}}
| {{nts|5.97}}
|-
| Rutherford
| {{NZL}} {{Flag|USA}}
| [[Company:Rocket Lab|Rocket Lab]]
| [[Engineering:Electron (rocket)|Electron]]
| Active
| 1st
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Electric-pump-fed engine|Electric pump]]
| {{nts|311}}
| {{nts|24,900}} <br/>{{nts|25,000}} <small>(SL)</small>
|
| {{nts|35}}<ref name="RutherfordAug20">{{cite web |title=Rocket Lab Increases Electron Payload Capacity, Enabling Interplanetary Missions and Reusability |url=https://www.rocketlabusa.com/about-us/updates/rocket-lab-increases-electron-payload-capacity-enabling-interplanetary-missions-and-reusability/ |website=Rocket Lab |accessdate=26 October 2020 |language=en}}</ref>
| {{nts|72.8}} (SL)
|
|-
| Rutherford Vacuum
| {{NZL}} {{Flag|USA}}
| [[Company:Rocket Lab|Rocket Lab]]
| [[Engineering:Electron (rocket)|Electron]]
| Active
| 2nd
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Electric-pump-fed engine|Electric pump]]
| {{nts|343}}
| {{nts|25,800}}<ref name="RutherfordAug20"/>
|
|
|
|
|-
| S200
| {{IND}}
| [[Astronomy:Satish Dhawan Space Centre|SDSC]]
| GSLV Mk III 
| Active
| Booster
| HTPB
| {{n/a|Solid fuel}}
| {{nts|274.5}}<ref name="isrolvm3">{{cite web | url=http://isro.org/launchers/lvm3 | title=LVM3 | accessdate=21 December 2014 | archive-url=https://web.archive.org/web/20150910082020/http://isro.org/launchers/lvm3 | archive-date=10 September 2015 | url-status=dead }}</ref>
| {{nts|5,150,000}}<ref name="isros200">{{cite web |url=http://www.isro.org/pressrelease/contents/2010/pdf/S200_STATIC_TEST-01.pdf |title=ISRO Press Release: S200 First Static Test (S-200-ST-01) |access-date=2015-09-25 |archive-url=https://web.archive.org/web/20130311191452/http://isro.org/pressrelease/contents/2010/pdf/S200_STATIC_TEST-01.pdf |archive-date=2013-03-11 |url-status=dead }}</ref><ref name="dnai3sb">{{cite web|url=http://www.dnaindia.com/scitech/report_isro-successfully-tests-world-s-3rd-largest-solid-booster_1338945|title=Isro successfully tests world's 3rd largest solid booster|work=dna|accessdate=4 October 2014}}</ref><ref>{{cite web|url=http://www.thehindu.com/sci-tech/article61220.ece|title=India to test world's third largest solid rocket booster|date=2009-12-07|publisher=The Hindu News Paper|work=Science and Technology Section|accessdate=2009-12-07}}</ref>
|
| {{nts|207,000}}<br/>with fuel<ref name="isrolvm3" />
|
|
|-
| SCE-200
| {{IND}}
| [[Astronomy:Liquid Propulsion Systems Centre|LPSC]]
| GSLV Mk III, <br/>ULV
| Development
| Upper, main
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Staged combustion cycle|Staged, oxidizer-rich]]
| {{nts|335}} <br/>{{nts|299}} <small>(SL)</small>
| {{nts|2,030,000}} <br/>{{nts|1,820,000}} <small>(SL)</small>
| {{nts|180}}
| {{nts|2700}}
|
|
|-
| [[Astronomy:Space Launch System|SLS]] Solid Rocket Booster{{efn|Largest, most powerful solid-fuel rocket motor ever built}}
| {{Flag|USA}}
| Orbital ATK
| [[Astronomy:Space Launch System|SLS]]
| Active
| Booster
| [[Chemistry:Polybutadiene acrylonitrile|PBAN]]
| {{n/a|Solid fuel}}
| {{nts|267}}
| {{nts|16,000,000}}
|
| {{nts|730,000}} <br/>with fuel
|
|
|-
| [[Engineering:Polar Satellite Launch Vehicle|SLV-1]]
| {{IND}}
| Godrej & Boyce
| PSLV 
| Active
| Booster
| HTPB
| {{n/a|Solid fuel}}
| {{nts|253}}<ref name="SLV-1">{{cite web| url=http://www.astronautix.com/engines/slv1.htm| title=SLV-1| accessdate=4 April 2014| url-status=dead| archive-url=https://web.archive.org/web/20140805132730/http://astronautix.com/engines/slv1.htm| archive-date=5 August 2014}}</ref>
| {{nts|502,600}}
| {{nts|43}}
| {{nts|10,800}} <br/>with fuel
|
|
|-
| [[Engineering:SRB-A|SRB-A]]3
| {{JPN}}
| [[Company:IHI Corporation|IHI Aerospace]], <br/>JAXA
| [[Engineering:H-IIA|H-IIA]], <br/>[[Engineering:H-IIB|H-IIB]], <br />[[Engineering:Epsilon (rocket)|Epsilon]]
| Active
| [[Engineering:Solid rocket booster|Booster]]
| HTPB
| {{n/a|Solid fuel}}
| {{nts|283.6}}<ref name="SRB-A3">{{cite web|url=http://spaceflight101.com/spacerockets/epsilon/|title=SRB-A3|work=Spaceflight101|accessdate=13 January 2016}}</ref>
| {{nts|2,305,000}} <br/>{{nts|2,150,000}} <small>(SL)</small>
| {{nts|111}}
| {{nts|76,600}} <br/>with fuel
|
|
|-

| [[Engineering:TEPREL|TEPREL]]-B
| {{Flag|Spain}}
| [[Company:PLD Space|PLD Space]]
| [[Engineering:Miura 1|Miura 1]]
| Active
| 1st
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Pressure-fed engine|Pressure-fed]]
| 
| {{nts|30,200}} <small>(SL)</small>
|
|
|
|
|-

| [[Engineering:TEPREL|TEPREL]]-C
| {{Flag|Spain}}
| [[Company:PLD Space|PLD Space]]
| [[Engineering:Miura 5|Miura 5]]
| Development
| 1st, 2nd
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Gas-generator cycle|Gas-generator]]
| 
| {{nts|190,000}} <small>(SL)</small>
|
|
|
|
|-
| TQ-12<ref>[https://mp.weixin.qq.com/s/mNVv0Pe67Ls-_53Gy2seIg “天鹊”80吨液氧甲烷发动机100%推力100秒试车圆满成功]</ref>
| {{Flag|China}}
| Landspace
| ZQ-2
| Active
| 1st
| CH<sub>4</sub>&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|284}}
| {{nts|667,000}} <small>(SL)</small>
| {{nts|101}}
|
|
|
|-
| Vikas (rocket engine)
| {{IND}}
| [[Astronomy:Liquid Propulsion Systems Centre|LPSC]]
| PSLV, GSLV, GSLV Mk III
| Active
| 2nd, main, booster
| [[Chemistry:Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]]&thinsp;/&thinsp;UDMH
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|262}}
| {{nts|680,500}}–804,500 <br/>{{nts|600,500}}–756,500 <small>(SL)</small>
| {{nts|53.0}}–58.5
|
|
|
|-
| Vinci
| {{EUR}}
| Snecma
| [[Engineering:Ariane 6|Ariane 6]]
| Development
| Upper
| [[Chemistry:Liquid hydrogen|LH<sub>2</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Engineering:Expander cycle|Expander, closed]]<ref name="Vinci_Astronautix">{{cite encyclopedia |url= http://www.astronautix.com/v/vinci.html |archive-url= https://web.archive.org/web/20161027124142/http://www.astronautix.com/v/vinci.html |url-status= dead |archive-date= October 27, 2016 | title=Vinci | encyclopedia=Encyclopedia Astronautica | accessdate=10 June 2017}}</ref>
| {{nts|457}}<ref name="ArianeVinci">{{cite web|url=https://www.ariane.group/wp-content/uploads/2020/06/VINCI_2020_04_DS_EN_Eng_Web.pdf|title=Vinci® engine|publisher=Ariane|access-date=10 October 2022}}</ref>
| {{nts|180,000}}
| {{nts|60}}
| {{nts|280}}
| {{nts|65.60}}
| {{nts|6.1}}
|-
| [[Engineering:Vulcain (rocket engine)|Vulcain 2.1]]
| {{EUR}}
| Snecma
| [[Engineering:Ariane 6|Ariane 6]]
| Development
| 1st
| [[Chemistry:Liquid hydrogen|LH<sub>2</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Gas-generator cycle|Gas generator]]
|
| {{nts|1,324,000}}
| {{nts|120.8}}
| {{nts|2,000}}
| {{nts|66.2}}
|
|-
| YF-21B
| {{CHN}}
| [[Organization:Academy of Aerospace Liquid Propulsion Technology|AALPT]]
| [[Engineering:Long March 2E|Long March 2E]], [[Engineering:Long March 2F|2F]], [[Engineering:Long March 3|3]]
| Active
| Booster, 1st
| [[Chemistry:Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]]&thinsp;/&thinsp;UDMH
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|260.66}}&nbsp;<small>(SL)</small><ref name="casc-lm3a-2011">{{cite book |url=http://www.cgwic.com/launchservices/download/manual/Chapter%202%20General%20Description.pdf |title=LM-3A Series Launch Vehicle User's Manual. Issue 2011 |date=2011 |publisher=[[Company:China Aerospace Science and Technology Corporation|CASC]] |chapter=2.2 LM-3A Launch Vehicle |pages=2–4 |access-date=2016-01-16}}</ref>
| {{nts|740,400}}&nbsp;<small>(SL)</small><ref name="casc-lm3a-2011" />
|
|
|
|
|-
| YF-21C
| {{CHN}}
| [[Organization:Academy of Aerospace Liquid Propulsion Technology|AALPT]]
| [[Engineering:Long March 2C|Long March 2C]], [[Engineering:Long March 2D|2D]], [[Engineering:Long March 3A|3A]], [[Engineering:Long March 3B|3B]], [[Engineering:Long March 3C|3C]], [[Engineering:Long March 4B|4B]], [[Engineering:Long March 4C|4C]]
| Active
| 1st
| [[Chemistry:Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]]&thinsp;/&thinsp;UDMH
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|260.7}}&nbsp;<small>(SL)</small><ref name="casc-lm3a-2011" />
| {{nts|740,400}}&nbsp;<small>(SL)</small><ref name="casc-lm3a-2011" />
|
|
|
|
|-
| YF-25
| {{CHN}}
| [[Organization:Academy of Aerospace Liquid Propulsion Technology|AALPT]]
| [[Engineering:Long March 3B|Long March 3B]], [[Engineering:Long March 3C|3C]]
| Active
| Booster
| [[Chemistry:Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]]&thinsp;/&thinsp;UDMH
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|260.66}}&nbsp;<small>(SL)</small><ref name="casc-lm3a-2011" />
| {{nts|740,400}}&nbsp;<small>(SL)</small><ref name="casc-lm3a-2011" />
|
|
|
|
|-
| YF-22B
| {{CHN}}
| [[Organization:Academy of Aerospace Liquid Propulsion Technology|AALPT]]
| [[Engineering:Long March 2E|Long March 2E]], [[Engineering:Long March 2F|2F]]
| Active
| 2nd
| [[Chemistry:Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]]&thinsp;/&thinsp;UDMH
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|298.0}}<ref name="casc-lm3a-2011" />
| {{nts|738,400}}
|
|
|
|
|-
| YF-22C
| {{CHN}}
| [[Organization:Academy of Aerospace Liquid Propulsion Technology|AALPT]]
| [[Engineering:Long March 2C|Long March 2C]], [[Engineering:Long March 2D|2D]], [[Engineering:Long March 4B|4B]], [[Engineering:Long March 4C|4C]]
| Active
| 2nd
| [[Chemistry:Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]]&thinsp;/&thinsp;UDMH
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|298.0}}<ref name="casc-lm3a-2011" />
| {{nts|742,040}}
|
|
|
|
|-
| YF-22D
| {{CHN}}
| [[Organization:Academy of Aerospace Liquid Propulsion Technology|AALPT]]
| [[Engineering:Long March 3|Long March 3]]
| Active
| 2nd
| [[Chemistry:Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]]&thinsp;/&thinsp;UDMH
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|298.0}}<ref name="casc-lm3a-2011" />
| {{nts|741,400}}
|
|
|
|
|-
| YF-22E
| {{CHN}}
| [[Organization:Academy of Aerospace Liquid Propulsion Technology|AALPT]]
| [[Engineering:Long March 3A|Long March 3A]], [[Engineering:Long March 3B|3B]], [[Engineering:Long March 3C|3C]]
| Active
| 2nd
| [[Chemistry:Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]]&thinsp;/&thinsp;UDMH
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|298.0}}<ref name="casc-lm3a-2011" />
| {{nts|741,400}}
|
|
|
|
|-
| YF-40
| {{CHN}}
| [[Organization:Academy of Aerospace Liquid Propulsion Technology|AALPT]]
| [[Engineering:Long March 4B|Long March 4B]], [[Engineering:Long March 4C|4C]]
| Active
| 3rd
| [[Chemistry:Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]]&thinsp;/&thinsp;UDMH
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|303}}
| {{nts|103,000}}
|
|
|
|
|-
| [[Engineering:Yuanzheng-1|YF-50D]]
| {{CHN}}
| [[Organization:Academy of Aerospace Liquid Propulsion Technology|AALPT]]
| [[Engineering:Long March 3B|Long March 3B]], [[Engineering:Long March 3C|3C]], [[Engineering:Long March 5|5]], [[Engineering:Long March 7|7]]
| Active
| Upper
| [[Chemistry:Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]]&thinsp;/&thinsp;UDMH
| [[Physics:Pressure-fed engine|Pressure-fed]]
| {{nts|315.5}}
| {{nts|6,500}}
|
|
|
|
|-
| YF-73
| {{CHN}}
| [[Organization:Academy of Aerospace Liquid Propulsion Technology|AALPT]]
| [[Engineering:Long March 3|Long March 3]]
| Active
| 3rd
| [[Chemistry:Liquid hydrogen|LH<sub>2</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|420.0}}
| {{nts|44,150}}
|
|
|
|
|-
| YF-75
| {{CHN}}
| [[Organization:Academy of Aerospace Liquid Propulsion Technology|AALPT]]
| [[Engineering:Long March 3A|Long March 3A]], [[Engineering:Long March 3B|3B]], [[Engineering:Long March 3C|3C]]
| Active
| 3rd
| [[Chemistry:Liquid hydrogen|LH<sub>2</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|438.0}}<ref name="casc-lm3a-2011" />
| {{nts|78,450}}
|
|
|
|
|-
| YF-75D
| {{CHN}}
| [[Organization:Academy of Aerospace Liquid Propulsion Technology|AALPT]]
| [[Engineering:Long March 5|Long March 5]]
| Active
| 2nd
| [[Chemistry:Liquid hydrogen|LH<sub>2</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Engineering:Expander cycle|Expander, closed]]
| {{nts|442.6}}
| {{nts|88,360}}
| {{nts|41}}
| {{nts|265}}
| {{nts|34}}
| {{nts|6.0}}
|-
| YF-77
| {{CHN}}
| [[Organization:Academy of Aerospace Liquid Propulsion Technology|AALPT]]
| [[Engineering:Long March 5|Long March 5]]
| Active
| 1st
| [[Chemistry:Liquid hydrogen|LH<sub>2</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|428}} <br/>{{nts|316.7}} <small>(SL)</small>
| {{nts|700,000}} <br/>{{nts|518,000}} <small>(SL)</small>
| {{nts|102}}
| {{nts|1,054}}
| {{nts|50}}
| {{nts|5.5}}
|-
| YF-79
| {{CHN}}
| [[Organization:Academy of Aerospace Liquid Propulsion Technology|AALPT]]
| [[Engineering:Long March 9|Long March 9]]
| Development
| 3rd
| [[Chemistry:Liquid hydrogen|LH<sub>2</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Engineering:Expander cycle|Expander, closed]]
| {{nts|455.2}}
| {{nts|250,000}}
| {{nts|70}}
|
| 
| {{nts|6.0}}
|-
| YF-90<ref>{{Cite web |url=http://hjtjnew.paperopen.com/upload/html/m/202202002.html|title=220tf补燃循环氢氧发动机研制进展|author=孙纪国,郑孟伟,龚杰峰,陶瑞峰 |date=2022-01-15 |publisher=《火箭推进》2022年02期 |language=zh-hans |accessdate=2022-06-05 }}</ref>
| {{CHN}}
| [[Organization:Academy of Aerospace Liquid Propulsion Technology|AALPT]]
| [[Engineering:Long March 9|Long March 9]]
| Development
| 2nd
| [[Chemistry:Liquid hydrogen|LH<sub>2</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Staged combustion cycle|Staged, fuel-rich]]
| {{nts|453}}
| {{nts|2,200,000}}
| {{nts|183}}
| {{nts|4,800}}
| {{nts|46.74}}
| {{nts|6.0}}
|-
| YF-100
| {{CHN}}
| [[Organization:Academy of Aerospace Liquid Propulsion Technology|AALPT]]
| [[Engineering:Long March 7|Long March 7]], [[Engineering:Long March 5|5]]
| Active
| 1st
| RP-1/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Staged combustion cycle|Staged, oxidizer-rich]]
| {{nts|335.1}} <br />{{nts|300}}<small>(SL)</small>
| {{nts|1,339,480}} <br>1,199,190 <small>(SL)</small>
| {{nts|180}}
| {{nts|1,912}}
| {{nts|64}}
| {{nts|2.6}}
|-
| YF-115
| {{CHN}}
| [[Organization:Academy of Aerospace Liquid Propulsion Technology|AALPT]]
| [[Engineering:Long March 6|Long March 6]], [[Engineering:Long March 7|7]]
| Active
| 2nd
| RP-1/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Staged combustion cycle|Staged, oxidizer-rich]]
| {{nts|341.5}} 
| {{nts|182,400}}
| {{nts|120}}
|
| 
| {{nts|2.5}}
|-
| YF-130
| {{CHN}}
| [[Organization:Academy of Aerospace Liquid Propulsion Technology|AALPT]]
| [[Engineering:Long March 9|Long March 9]]
| Development
| 1st
| RP-1/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Staged combustion cycle|Staged, oxidizer-rich]]
| {{nts|308}} <small>(SL)</small>
| {{nts|5,000,000|prefix=~}} <small>(SL)</small>
| {{nts|220}}
| {{nts|6,500|prefix=~}}
| {{nts|78}}
| {{nts|2.62}}
|-
| [[Engineering:Zefiro (rocket stage)|Zefiro 9A]]
| {{EU}}
| [[Company:Avio|Avio]]
| [[Engineering:Vega (rocket)|Vega]]
| Active
| 3rd
| HTPB
| {{n/a|Solid fuel}}
| {{Nts|295.2}}<ref name=":5">{{cite web|url=http://www.avio.com/en/vega/vega-c/vega-c-3-stadio-zefiro-9/|title=VEGA C: 3° stage - zefiro 9|website=Avio.com|language=en-US|access-date=2020-01-20|archive-date=June 5, 2019|archive-url=https://web.archive.org/web/20190605051515/http://www.avio.com/en/vega/vega-c/vega-c-3-stadio-zefiro-9/|url-status=dead}}</ref>
| {{nts|314,000}}<ref name=":5" />
| {{nts|75}}
| {{nts|11,400}} with fuel
|
|
|-
| [[Engineering:Zefiro (rocket stage)|Zefiro 23]]
| {{EU}}
| [[Company:Avio|Avio]]
| [[Engineering:Vega (rocket)|Vega]]
| Active
| 2nd
| HTPB
| {{n/a|Solid fuel}}
| {{Nts|287.5}}<ref name=":6">{{cite web|url=http://www.avio.com/en/vega/vega/vega-2-stadio-zefiro-23/|title=VEGA: 2° stage - zefiro 23|website=Avio.com|language=en-US|access-date=2020-01-20}}</ref>
|{{Nts|1,122,000}}<ref name=":6" />
| {{nts|94}}
| {{nts|25,935}} with fuel
|
|
|-
| [[Engineering:Zefiro (rocket stage)|Zefiro 40]]
| {{EU}}
| [[Company:Avio|Avio]]
| Vega-C
| Active
| 3rd
| HTPB
| {{n/a|Solid fuel}}
| {{Nts|293.5}}<ref name=":17">{{cite web|url=https://www.avio.com/zefiro-40/|title=Zefiro 40 Motor Main Characteristics|website=Avio.com|language=en-US|access-date=2021-05-24}}</ref>
| {{nts|1,304,000}}<ref name=":17" />
| {{nts|115}}
| {{nts|39,206}} with fuel
|
|
|} <!-- End table of active rocket engines -->

==Retired and canceled rocket engines==
{| class="wikitable sortable"
|- class="is-sticky"
! Engine
! Origin
! Designer
! [[Engineering:Spacecraft|Vehicle]]
! [[Astronomy:Multistage rocket|Use]]
! [[Chemistry:Rocket propellant|Propellant]]
! Power cycle
! [[Physics:Specific impulse|Specific impulse]] (s){{efn|name=VSL|At sea level if denoted ''SL'', in vacuum otherwise}}
! [[Thrust]] (N){{efn|name=VSL}}
! [[Engineering:Combustion chamber|Chamber]] pressure (bar)
! Mass (kg)
! [[Engineering:Thrust-to-weight ratio|Thrust:{{zwsp}}weight ratio]]{{efn|Weight is calculated at [[Physics:Standard gravity|standard gravity]].}}
! Oxidiser:{{zwsp}}fuel ratio
|-
| [[Company:Relativity Space|Aeon 1]]
|  {{Flag|USA}}
| [[Company:Relativity Space|Relativity Space]]
| Terran 1 
| 1st
| CH<sub>4</sub>&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|310}}
| {{nts|86,740}} <small>(SL)</small><ref name="terran1">{{cite web |title= Terran 1 Technical Specifications |url=http://www.relativityspace.com/terran |access-date=2019-10-05|website=Relativity}}</ref>
|
|
|
|
|-
| [[Company:Relativity Space|Aeon 1 Vacuum]]
| {{Flag|USA}}
| [[Company:Relativity Space|Relativity Space]]
| Terran 1 
| 2nd
| CH<sub>4</sub>&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|360}}
| {{nts|100,085}} <small>(SL)</small><ref name="terran1" />
|
|
|
|
|-
| [[Engineering:Aestus|Aestus]]
| {{nobr|{{EUR}}}}
| [[Company:Airbus Defence and Space|Airbus Defence and Space]]
| [[Engineering:Ariane 5|Ariane 5]] G, G+, ES
| Upper
| [[Chemistry:Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]]&thinsp;/&thinsp;[[Chemistry:Monomethylhydrazine|MMH]]
| [[Physics:Pressure-fed engine|Pressure-fed]]
| {{nts|324}}<ref name="Aestus_Airbus">{{cite web |url= http://cs.astrium.eads.net/sp/launcher-propulsion/rocket-engines/aestus-rocket-engine.html |title=Aestus Rocket Engine |publisher=[[Company:Airbus Defence and Space|Airbus Defence and Space]] |accessdate=29 January 2014 |url-status=dead |archive-url=https://web.archive.org/web/20150420140731/http://cs.astrium.eads.net/sp/launcher-propulsion/rocket-engines/aestus-rocket-engine.html |archive-date=2015-04-20}}</ref>
| {{nts|30,000}}
| {{nts|11}}
| {{nts|111}}
| {{nts|27.6}}
| {{nts|1.9}}
|-
| Aestus II
| {{EUR}}
| [[Company:Airbus Defence and Space|Airbus Defence and Space]]
| [[Engineering:Ariane 5|Ariane 5]]
| Upper
| [[Chemistry:Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]]&thinsp;/&thinsp;[[Chemistry:Monomethylhydrazine|MMH]]
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|340}}<ref name="AestusII_Airbus">{{cite web |url=http://cs.astrium.eads.net/sp/launcher-propulsion/rocket-engines/aestus-rs72-rocket-engine.html |title=Aestus Rocket Engine |publisher=[[Company:Airbus Defence and Space|Airbus Defence and Space]] |accessdate=29 January 2014 |url-status=dead |archive-url=https://web.archive.org/web/20150528225225/http://cs.astrium.eads.net/sp/launcher-propulsion/rocket-engines/aestus-rs72-rocket-engine.html |archive-date=2015-05-28 }}</ref>
| {{nts|55,400}}
| {{nts|60}}
| {{nts|138}}
| {{nts|41.0}}
| {{nts|1.9}}
|-
| Aether
| {{Flag|USA}}
| [[Company:Astra Space|Astra Space]]
| [[Engineering:List of Astra rocket launches#Rocket 3|Rocket 3.3]]
| 2nd
| [[Chemistry:RP-1|RP-1]]/[[Physics:Liquid oxygen|LOX]]<ref name=":8" />
| [[Physics:Pressure-fed engine|Pressure-fed]]
|
| {{nts|3,300}}<ref name="PressKitLV0006">{{cite web|url=https://astra.com/wp-content/uploads/2021/08/Astra_MediaKit_LV0006.pdf|title=Astra Media Kit LV0006|date=28 August 2021}}</ref>
|
|
|
|
|-
| [[Engineering:AJ-60A|AJ-60A]]
| {{Flag|USA}}
| [[Company:Aerojet|Aerojet]]
| [[Engineering:Atlas V|Atlas V]]
| [[Engineering:Solid rocket booster|Booster]]
| HTPB
| {{n/a|Solid fuel}}
| {{nts|275}}
| {{nts|1,270,000}}<ref name=aerojet-aj60a>{{cite web|title=Atlas V Solid Rocket Motor|url=http://www.rocket.com/atlas-v-solid-rocket-motor|website=Aerojet Rocketdyne|accessdate=2015-06-02|archive-url=https://web.archive.org/web/20170314072244/http://www.rocket.com/atlas-v-solid-rocket-motor|archive-date=2017-03-14|url-status=dead}}</ref>
|
|
|
|
|-
| AJ-260-2
| {{Flagicon|USA}} USA
| [[Company:Aerojet|Aerojet]]
| S-I stage replacement (proposed)
| 1st
| [[Chemistry:Polybutadiene acrylonitrile|PBAN]]
| {{n/a|Solid fuel}}
| {{nts|263}}
| {{nts|26,183,755}}
|
| {{nts|831,345}} with fuel
|
|
|-
| AR1
| {{Flag|USA}}
| [[Company:Aerojet Rocketdyne|Aerojet Rocketdyne]]
| 
| 1st
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Staged combustion cycle|Staged, oxidizer-rich]]
|
| {{nts|2,200,000}} <small>(SL)</small><ref>{{cite web |url=http://www.rocket.com/ar1-booster-engine |title=AR1 Engine|access-date=2016-10-26 |archive-url=https://web.archive.org/web/20160304012636/http://www.rocket.com/ar1-booster-engine |archive-date=2016-03-04 |url-status=dead|website=Aerojet Rocketdyne}}</ref>
|
|
|
| {{nts|2.72}}
|-
| Delphin
| {{Flag|USA}}
| [[Company:Astra Space|Astra Space]]
| [[Engineering:List of Astra rocket launches#Rocket 3|Rocket 3.3]]
| 1st
| [[Chemistry:RP-1|RP-1]]/[[Physics:Liquid oxygen|LOX]]<ref name=":8">{{cite web|title=Astra Space Rocket|url=https://www.spacelaunchreport.com/astra.html|access-date=2020-07-03|website=www.spacelaunchreport.com}}</ref>
| [[Physics:Electric-pump-fed engine|Electric pump]]
|
| {{Nts|29000}}<ref name="PressKitLV0006"/>
|
|
|
|
|-
| F-1{{efn|Most powerful single-chamber liquid-fueled rocket engine ever developed}}
| {{Flag|USA}}
| [[Company:Rocketdyne|Rocketdyne]]
| [[Engineering:Saturn V|Saturn V]]
| 1st
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|304}} <br/>{{nts|263}} <small>(SL)</small>
| {{nts|7,770,000}} <br/>{{nts|6,770,000}} <small>(SL)</small>
| {{nts|70}}
| {{nts|8,391}}
| {{nts|82.27}}
| {{nts|2.27}}
|- 
| F-1A{{efn|Tested but never flown}}<ref>[https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19930019136.pdf Alternate Propulsion Subsystem Concepts NAS8-39210 DCN 1-1-PP-02147]</ref>
| {{Flag|USA}}
| [[Company:Rocketdyne|Rocketdyne]]
|
| 1st
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|303}} <br/>{{nts|270}} <small>(SL)</small>
| {{nts|8,989,000}} <br/>{{nts|8,007,000}} <small>(SL)</small>
| {{nts|80}}
| {{nts|9,015}}
| {{nts|90.6}}
| {{nts|2.27}}
|- 
| Gamma 2
| {{UK}}
| Bristol Siddeley
| Black Arrow
| 2nd
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Chemistry:Hydrogen peroxide|H<sub>2</sub>O<sub>2</sub>]]
| Staged, decomposition and combustion
| {{nts|265}}<ref name="Gamma2">{{cite encyclopedia |url=http://www.astronautix.com/engines/gamma2.htm |title=Gamma 2 |archive-url=https://web.archive.org/web/20130522155041/http://www.astronautix.com/engines/gamma2.htm |archive-date=22 May 2013 |encyclopedia=Encyclopedia Astronautica |accessdate=26 April 2013 |url-status=dead }}</ref>
| {{nts|68,200}}
|
| {{nts|173}}
| {{nts|40.22}}
| {{nts|8}}
|- 
| Gamma 8
| {{UK}}
| Bristol Siddeley
| Black Arrow
| 1st
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Chemistry:Hydrogen peroxide|H<sub>2</sub>O<sub>2</sub>]]
| Staged, decomposition and combustion
| {{nts|265}}<ref name="Gamma8">{{cite encyclopedia |url=http://www.astronautix.com/engines/gamma8.htm |title=Gamma 8 |archive-url=https://web.archive.org/web/20130522155114/http://www.astronautix.com/engines/gamma8.htm |archive-date=22 May 2013 |encyclopedia=Encyclopedia Astronautica |accessdate=26 April 2013 |url-status=dead }}</ref>
| {{nts|234,800}}
| {{nts|47.40}}
| {{nts|342}}
| {{nts|70.01}}
| {{nts|8}}
|-
| HM-7A
| {{EUR}}
| Snecma
| [[Engineering:Ariane 1|Ariane 1]]
| 3rd
| [[Chemistry:Liquid hydrogen|LH<sub>2</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|443}}<ref name="HM7A">{{cite encyclopedia |url=http://www.astronautix.com/h/hm7-a.html |archive-url=https://web.archive.org/web/20161221093730/http://www.astronautix.com/h/hm7-a.html |url-status=dead |archive-date=December 21, 2016 |title=HM7-A |first=Mark |last=Wade |encyclopedia=Encyclopedia Astronautica |access-date=10 June 2017}}</ref> <br/>{{nts|308}} <small>(SL)</small>
| {{nts|61,700}}
| {{nts|30}}
| {{nts|149}}
| {{nts|42.2}}
| {{nts|5}}
|-
| J-2
| {{Flag|USA}}
| [[Company:Rocketdyne|Rocketdyne]]
| [[Engineering:Saturn V|Saturn V]], [[Astronomy:Saturn IB|IB]]
| 2nd, 3rd
| [[Chemistry:Liquid hydrogen|LH<sub>2</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|421}}<ref name="J-2">{{cite encyclopedia |url=http://www.astronautix.com/j/j-2.html |archive-url=https://web.archive.org/web/20160719175425/http://www.astronautix.com/j/j-2.html |url-status=dead |archive-date=July 19, 2016 |title=J-2 |first=Mark |last=Wade |encyclopedia=Encyclopedia Astronautica |accessdate=23 December 2011}}</ref> <br/>{{nts|200}} <small>(SL)</small>
| {{nts|1,033,100}} <br/>{{nts|486,200}} <small>(SL)</small>
| {{nts|52.6}}
| {{nts|1,438}}
| {{nts|73.18}}
| {{nts|5.5}}
|-
| J-2X
| {{Flag|USA}}
| Pratt & Whitney Rocketdyne
| [[Astronomy:Space Launch System|SLS]] (proposed)
| Upper
| [[Chemistry:Liquid hydrogen|LH<sub>2</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|448}}<ref name="J-2X">{{cite web |url= http://www.pw.utc.com/products/pwr/propulsion_solutions/j-2x.asp |title=J-2X Engine |publisher=Pratt & Whitney Rocketdyne |accessdate=23 December 2011 |url-status=dead |archive-url=https://web.archive.org/web/20120103030859/http://www.pw.utc.com/products/pwr/propulsion_solutions/j-2x.asp |archive-date=2012-01-03}}</ref>
| {{nts|{{convert|294,000|lbf|disp=number}}}}
| {{nts|{{convert|1380|psi|bar|disp=number}}}}
| {{nts|{{convert|5,450|lb|disp=number}}}}
| {{nts|58.41}}
| {{nts|5.5}}–4.5
|-
| Kestrel
| {{Flag|USA}}
| [[Company:SpaceX|SpaceX]]
| [[Engineering:Falcon 1|Falcon 1]]
| Upper
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| Pressure fed
| {{nts|317}}
| {{nts|31,000}}
| {{nts|9.3}}
| {{nts|52}}
| {{nts|65}}
| 
|-
| LE-5
| {{JPN}}
| [[Company:Mitsubishi Heavy Industries|Mitsubishi]], NASDA
| [[Engineering:H-I|H-I]]
| Upper
| [[Chemistry:Liquid hydrogen|LH<sub>2</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|450}}<ref name="LE-5">{{cite encyclopedia |url=http://www.astronautix.com/engines/le5.htm |title=LE-5 |encyclopedia=Encyclopedia Astronautica |accessdate=13 January 2016 |url-status=dead |archive-url=https://web.archive.org/web/20161027123109/http://www.astronautix.com/engines/le5.htm |archive-date=27 October 2016 }}</ref>
| {{nts|103,000}}
| {{nts|36.0}}
| {{nts|245}}
| {{nts|42.87}}
| {{nts|5.5}}
|-
| LE-5A
| {{JPN}}
| [[Company:Mitsubishi Heavy Industries|Mitsubishi]], NASDA
| [[Engineering:H-II|H-II]]
| Upper
| [[Chemistry:Liquid hydrogen|LH<sub>2</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Engineering:Expander cycle#Expander bleed cycle|Expander, open]]
| {{nts|452}}<ref name="LE-5A">{{cite encyclopedia |url=http://www.astronautix.com/engines/le5a.htm |title=LE-5A |encyclopedia=Encyclopedia Astronautica |accessdate=13 January 2016 |url-status=dead |archive-url=https://web.archive.org/web/20160311185707/http://www.astronautix.com/engines/le5a.htm |archive-date=11 March 2016 }}</ref>
| {{nts|121,500}}
| {{nts|40.0}}
| {{nts|242}}
| {{nts|51.19}}
| {{nts|5}}
|-
| LE-7
| {{JPN}}
| [[Company:Mitsubishi Heavy Industries|Mitsubishi]], NASDA
| [[Engineering:H-II|H-II]]
| 1st
| [[Chemistry:Liquid hydrogen|LH<sub>2</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Staged combustion|Staged combustion]]
| {{nts|446}}<ref name="LE-7">{{cite encyclopedia |url=http://www.astronautix.com/engines/le7.htm |title=LE-7 |encyclopedia=Encyclopedia Astronautica |accessdate=13 January 2016 |url-status=dead |archive-url=https://web.archive.org/web/20160311183629/http://www.astronautix.com/engines/le7.htm |archive-date=11 March 2016 }}</ref>
| {{nts|1,078,000}} <br/>{{nts|843,500}} <small>(SL)</small>
| {{nts|127}}
| {{nts|1,714}}
| {{nts|64.13}}
| {{nts|5.9}}
|-
| M-1
| {{Flag|USA}}
| [[Company:Aerojet|Aerojet]]
| 
| 1st, 2nd?
| [[Chemistry:Liquid hydrogen|LH<sub>2</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|428}} <small>(SL)</small>
| {{nts|6,670,000}}
|
| {{nts|9,068}}
| {{nts|60}}
| 
|-
| Merlin 1D
| {{Flag|USA}}
| [[Company:SpaceX|SpaceX]]
| [[Engineering:Falcon 9 v1.1|Falcon 9 v1.1]]
| 1st
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|311}}<ref name="spacexfalcon9Merlinpage">{{cite web | url=http://www.spacex.com/falcon9.php#merlin_engine | title=Merlin section of Falcon 9 page | publisher=SpaceX | accessdate=2012-10-16 | archive-url=https://web.archive.org/web/20130715094112/http://www.spacex.com/falcon9 | archive-date=2013-07-15}}</ref> <br/>{{nts|282}} <small>(SL)</small><ref name="spacexfalcon9Merlinpage" />
| {{nts|723,000}}
| {{nts|97}}
| {{nts|470}}
| {{nts|158}}
| {{nts|2.34}}
|-
| Merlin Vacuum 1C
| {{Flag|USA}}
| [[Company:SpaceX|SpaceX]]
| [[Engineering:Falcon 1|Falcon 1]], [[Engineering:Falcon 9|9]]
| 2nd
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|336}}<ref name="merlin 1c falcon9">{{cite web | url=http://www.spacelaunchreport.com/falcon9.html | title=Falcon 9 Space Launch Report | publisher=SpaceLaunchReport | accessdate=2015-11-01}}</ref>
| {{nts|413,644}}<ref name="merlin 1c falcon9" />
|
|
| {{nts|92}}
|
|-
| [[Engineering:LauncherOne|NewtonThree]]
| {{Flag|USA}}
| [[Company:Virgin Orbit|Virgin Orbit]]
| [[Engineering:LauncherOne|LauncherOne]]
| [[Engineering:Booster (rocketry)|Booster]]
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| Gas generator<ref name="arc.aiaa.org">{{Cite book|chapter-url=https://arc.aiaa.org/doi/pdfplus/10.2514/6.2016-4984|doi = 10.2514/6.2016-4984|chapter = Turbopump Design and Development for the Virgin Galactic Newton ''Three'' Engine System|title = 52nd AIAA/SAE/ASEE Joint Propulsion Conference|year = 2016|last1 = Sargent|first1 = Scott R.|last2 = Noall|first2 = Jeff|last3 = Becker|first3 = Matthew|last4 = MacKlin|first4 = Scott|isbn = 978-1-62410-406-0}}</ref>
|
| {{nts|266,893}}<ref name="virgingalactic1">{{cite web|url=http://www.virgingalactic.com/assets/uploads/2014/11/VG_LauncherOne_ServiceGuide_v0.2_OSR.pdf|title=LauncherOne Service Guide|archive-url=https://web.archive.org/web/20171022123920/http://www.virgingalactic.com/assets/uploads/2014/11/VG_LauncherOne_ServiceGuide_v0.2_OSR.pdf|archive-date=2017-10-22|url-status=dead}}</ref>
|
|
|
|
|-
| [[Engineering:LauncherOne|NewtonFour]]
| {{Flag|USA}}
| [[Company:Virgin Orbit|Virgin Orbit]]
| [[Engineering:LauncherOne|LauncherOne]]
| 2nd
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| Gas generator<ref name="arc.aiaa.org"/>
|
| {{nts|22,241}}<ref name="virgingalactic1"/>
|
|
|
|
|-
| [[Engineering:Ariane 5#Solid boosters|P230]]
| {{EUR}}
| [[Company:Avio|Avio]]
| [[Engineering:Ariane 5|Ariane 5]]
| [[Engineering:Solid rocket booster|Booster]]
| HTPB
| {{n/a|Solid fuel}}
| {{nts|286}}<ref name="P230">{{cite encyclopedia | url=http://www.astronautix.com/engines/p230.htm | title=P230 | encyclopedia=Encyclopedia Astronautica | accessdate=27 December 2011 | url-status=dead | archive-url=https://web.archive.org/web/20111231025932/http://www.astronautix.com/engines/p230.htm | archive-date=31 December 2011 }}</ref> <br/>{{nts|259}} <small>(SL)</small>
| {{nts|6,996,000}} <br/>{{nts|5,860,000}} <small>(SL)</small>
| {{nts|69}}
| {{nts|269,000}} with&nbsp;fuel<ref name="P230" />
|
|-
| [[Astronomy:Polaris|Polaris]]
| {{USA}}
| Exela Space Industries
| Aims-1, Aims-4
| 1st
| [[Chemistry:Propane|Propane]]/[[Astronomy:LOX|LOX]]
| [[Physics:Pressure-fed engine|Pressure-fed]]
| 23
| 2,000
|25
| 5
|40.8
|0.8-1
|-
| RD-0120 <br/><small>11Д122</small>
| {{Flag|USSR}}
| KBKhA
| Energia
| 1st
| [[Chemistry:Liquid hydrogen|LH<sub>2</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| Staged, fuel-rich
| {{nts|455}}<ref name="RD-0120">{{cite web |url=http://www.kbkha.ru/?p=8&cat=8&prod=34 |title= RD0120 |publisher=KBKhA}}</ref>
| {{nts|1,962,000}} <br/>{{nts|1,526,000}} <small>(SL)</small>
| {{nts|219}}
| {{nts|3,450}}
| {{nts|57.80}}
|
|-
| RD-8, <br/><small>11D513</small>
| {{USSR}}
| [[Company:Yuzhnoye Design Office|Pivdenne]]/{{zwsp}}[[Company:Yuzhmash|Pivdenmash]]
| [[Engineering:Zenit (rocket family)|Zenit]] 
| 2nd vernier
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Staged combustion cycle|Staged, oxidizer-rich]]
| {{nts|342}}
| {{nts|78,450}}
| {{nts|77.47}}
| {{nts|356}}
|
| {{nts|2.4}}
|-
| RD-56 (KVD-1) <br/><small>11Д56У</small>
| {{RUS}}
| KBKhM
| GSLV Mk I
| Upper
| [[Chemistry:Liquid hydrogen|LH<sub>2</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| Staged, fuel-rich
| {{nts|462}}<ref name="KVD1">{{cite web | script-title=ru:Двигатель КВД1 | url=http://kbhmisaeva.ru/main.php?id=54 | title=KVD1 Rocket Engine | publisher=КБХМ им. A.M. Исаева | language=ru | access-date=May 31, 2013 | archive-date=February 2, 2014 | archive-url=https://web.archive.org/web/20140202120044/http://kbhmisaeva.ru/main.php?id=54 | url-status=dead }}</ref>
| {{nts|69,626}}
| {{nts|55.9}}
| {{nts|282}}
| {{nts|25.17}}
|
|-
| RD-117 <br/><small>11Д511</small>
| {{Flag|USSR}}
| [[Company:NPO Energomash|NPO Energomash]]
| [[Engineering:Soyuz-U|Soyuz-U]]
| 1st
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| Gas generator
| {{nts|316}}<ref name="lpre">{{cite web |url=http://www.lpre.de/energomash/RD-107/index.htm |title=RD-117 |work=Liquid Propellant Rocket Engines |accessdate=27 November 2012 |url-status=dead |archive-url=https://web.archive.org/web/20120826123612/http://www.lpre.de/energomash/RD-107/index.htm |archive-date=26 August 2012 }}</ref> <br/>{{nts|253}} <small>(SL)</small>
| {{nts|978,000}} <br/>{{nts|778,648}} <small>(SL)</small>
| {{nts|54.2}}
| {{nts|1,100}}
| {{nts|72.18}}
|
|-
| RD-118 <br/><small>11Д512</small>
| {{Flag|USSR}}
| [[Company:NPO Energomash|NPO Energomash]]
| [[Engineering:Soyuz-U|Soyuz-U]]
| 2nd
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| Gas generator
| {{nts|314}}<ref name="lpre" /> <br/>{{nts|257}} <small>(SL)</small>
| {{nts|1,000,278}} <br/>{{nts|818,855}} <small>(SL)</small>
| {{nts|59.7}}
| {{nts|1,100}}
| {{nts|75.91}}
|
|-
| RD-170{{efn|World's most powerful liquid fueled rocket engine}}<small>11Д521</small><ref name="RD-170">{{cite encyclopedia |url= http://www.astronautix.com/r/rd-170.html |archive-url= https://web.archive.org/web/20160808152705/http://www.astronautix.com/r/rd-170.html |url-status= dead |archive-date= August 8, 2016 |title=RD-170 |encyclopedia=Encyclopedia Astronautica |accessdate=24 September 2019}}</ref>
| {{Flag|USSR}}
| [[Company:NPO Energomash|NPO Energomash]]
| Energia
| 1st
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| Staged, oxidizer-rich
| {{nts|337.2}} <br/>{{nts|309.5}} <small>(SL)</small>
| {{nts|7,904,160}} <br/>{{nts|7,256,921}} <small>(SL)</small>
| {{nts|250}}
| {{nts|9,300}}
| {{nts|79.57}}
|
|-
| RD-181
| {{RUS}}
| [[Company:NPO Energomash|NPO Energomash]]
| Antares 200
| 1st
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Staged combustion cycle|Staged, oxidizer-rich]]
| {{nts|339.2}}<ref>{{cite web|url=http://spaceflight101.com/spacerockets/antares-200-series/|title = Antares 200 Series – Rockets}}</ref> <br/>{{nts|311.9}} <small>(SL)</small>
| {{nts|2,085,000}} <br/>{{nts|1,922,000}} <small>(SL)</small>
| {{nts|262.6}}
| {{nts|2,200}}
| {{nts|89}}
|
|-
| RD-264 <br/><small>11Д119</small>
| {{Flag|USSR}}
| [[Company:NPO Energomash|NPO Energomash]]
| Dnepr 
| 1st
| [[Chemistry:Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]]&thinsp;/&thinsp;UDMH
| Staged, oxidizer-rich
| {{nts|318}}<ref name="RD-264">{{cite encyclopedia |url=http://www.astronautix.com/r/rd-264.html |archive-url=https://web.archive.org/web/20161014095858/http://www.astronautix.com/r/rd-264.html |url-status=dead |archive-date=October 14, 2016 |title=RD-264 |first=Mark |last=Wade |encyclopedia=Encyclopedia Astronautica |accessdate=10 June 2017}}</ref> <br/>{{nts|293}} <small>(SL)</small>
| {{nts|4,521,000}}
| {{nts|206}}
| {{nts|3,600}}
| {{nts|128.15}}
|
|-
| RD-270{{efn|Tested but never flown}}<br/><small>8Д420</small>
| {{Flag|USSR}}
| [[Company:NPO Energomash|NPO Energomash]]
| [[Engineering:Universal Rocket#UR-700|UR-700]] (proposed), [[Engineering:Universal Rocket#UR-900|UR-900]] (proposed)
| 1st
| [[Chemistry:Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]]&thinsp;/&thinsp;UDMH
| Staged, full-flow
| {{nts|322}}<ref name="RD-270">{{cite web | url=http://www.lpre.de/energomash/RD-270/index.htm | title=RD-270 (8D420) | work=NPO Energomash | accessdate=6 February 2023}}</ref> <br/>{{nts|301}} <small>(SL)</small>
| {{nts|6,710,000}} <br/>{{nts|6,270,000}} <small>(SL)</small>
| {{nts|261}}
| {{nts|3,370}}
| {{nts|189.91}}
|
|-
| RD-275 <br/><small>14Д14</small>
| {{RUS}}
| [[Company:NPO Energomash|NPO Energomash]]
| [[Engineering:Proton-M|Proton-M]] 
| 1st
| [[Chemistry:Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]]&thinsp;/&thinsp;UDMH
| Staged, oxidizer-rich
| {{nts|316}}<ref name="RD-275">{{cite web | url=http://www.npoenergomash.ru/eng/dejatelnost/engines/rd253/ | title=RD-253 and RD-275 | work=NPO Energomash | accessdate=30 June 2015 | archive-url=https://web.archive.org/web/20150405185423/http://www.npoenergomash.ru/eng/dejatelnost/engines/rd253/ | archive-date=April 5, 2015 | url-status=dead }}</ref> <br/>{{nts|287}} <small>(SL)</small>
| {{nts|1,831,882}} <br/>{{nts|1,671,053}} <small>(SL)</small>
| {{nts|160.0}}
| {{nts|1,070}}
| {{nts|171.2}}
|
|-
| RD-854 <br/><small>8D612</small>
| {{USSR}}
| [[Company:Yuzhnoye Design Office|Pivdenne]]/{{zwsp}}[[Company:Yuzhmash|Pivdenmash]]
| R-36ORB
| 3rd
| [[Chemistry:Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]]&thinsp;/&thinsp;UDMH
| Gas generator
|
|
|
|
|
|
|-
| RD-855 <br/><small>8D68M</small>
| {{USSR}}
| [[Company:Yuzhnoye Design Office|Pivdenne]]/{{zwsp}}[[Company:Yuzhmash|Pivdenmash]]
| Tsyklon-2, [[Engineering:Tsyklon-3|-3]], R-36
| 1st vernier
| [[Chemistry:Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]]&thinsp;/&thinsp;UDMH
| Gas generator
| 
| {{nts|328,000}}
| {{nts|65.70}}
| {{nts|320}}
| 
| {{nts|1.97}}
|-
| RD-856 <br/><small>8D69M</small>
| {{USSR}}
| [[Company:Yuzhnoye Design Office|Pivdenne]]/{{zwsp}}[[Company:Yuzhmash|Pivdenmash]]
| Tsyklon-2, [[Engineering:Tsyklon-3|-3]] (-4), R-36
| 2nd vernier
| [[Chemistry:Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]]&thinsp;/&thinsp;UDMH
| Gas generator
| 
| {{nts|54,230}}
| {{nts|71.60}}
| {{nts|112.5}}
| 
| {{nts|1.98}}
|-
| RD-861 <br/><small>11D25</small>
| {{USSR}}
| [[Company:Yuzhnoye Design Office|Pivdenne]]/{{zwsp}}[[Company:Yuzhmash|Pivdenmash]]
| Tsyklon-2, [[Engineering:Tsyklon-3|-3]]
| 3rd
| [[Chemistry:Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]]&thinsp;/&thinsp;UDMH
| Gas generator
| 
| {{nts|78,710}}
| {{nts|88.8}}
| {{nts|123}}
| 
| {{nts|2.1}}
|-
| RD-864 <br/><small>15D177</small>
| {{USSR}}
| [[Company:Yuzhnoye Design Office|Pivdenne]]/{{zwsp}}[[Company:Yuzhmash|Pivdenmash]]
| R-36 (missile), Dnipro 
| 3rd
| [[Chemistry:Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]]&thinsp;/&thinsp;UDMH
| Gas generator
| {{ntsh|309}}298–309
| {{ntsh|20,200}}8,450–20,200
| {{ntsh|41}}17–41
| {{nts|199}}
| 
| {{nts|1.8}}
|-
| RD-869 <br/><small>15D300</small>
| {{USSR}}
| [[Company:Yuzhnoye Design Office|Pivdenne]]/{{zwsp}}[[Company:Yuzhmash|Pivdenmash]]
| R-36M
| 3rd
| [[Chemistry:Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]]&thinsp;/&thinsp;UDMH
| Gas generator
| {{ntsh|313}}302.3–313
| {{ntsh|20,470}}8,580–20,470
| {{ntsh|41}}17–41
| {{nts|196}}
| 
| {{nts|1.8}}
|-
| RS-27A
| {{Flag|USA}}
| [[Company:Rocketdyne|Rocketdyne]]
| [[Engineering:Delta (rocket family)|Delta]]
| 1st
| [[Chemistry:RP-1|RP-1]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|302}}<ref name="RS-27A">{{cite encyclopedia |url=http://www.astronautix.com/r/rs-27a.html |archive-url=https://web.archive.org/web/20160825210024/http://www.astronautix.com/r/rs-27a.html |url-status=dead |archive-date=August 25, 2016 |title=RS-27A |encyclopedia=Encyclopedia Astronautica |accessdate=2 November 2021}}</ref> <br/>{{nts|255}} <small>(SL)</small>
| {{nts|1,054,200}}
| {{nts|49}}
| {{nts|1091}}
| {{nts|102.5}}
| {{nts|2.245}}
|-
| [[Engineering:Space Shuttle Solid Rocket Booster|Space Shuttle Solid Rocket Booster]]{{efn|Largest solid-fuel rocket motor ever flown, and the first to be used for primary propulsion on human spaceflight missions}}
| {{Flag|USA}}
| [[Company:Thiokol|Thiokol]]
| [[Engineering:Space Shuttle|Space Shuttle]], Ares I
| Booster
| [[Chemistry:Polybutadiene acrylonitrile|PBAN]]&thinsp;/&thinsp;APCP
| {{n/a|Solid fuel}}
| {{nts|268}}
| {{nts|14,000,000}} <br/>{{nts|12,500,000}} <small>(SL)</small>
|
| {{nts|590,000}} <br/>with fuel
|
|
|-
| [[Engineering:SRB-A|SRB-A]]
| {{JPN}}
| [[Company:IHI Corporation|IHI Aerospace]], JAXA
| [[Engineering:H-IIA|H-IIA]]
| [[Engineering:Solid rocket booster|Booster]]
| HTPB
| {{n/a|Solid fuel}}
| {{nts|280}}<ref name="SRB-A">{{cite encyclopedia |url=http://www.astronautix.com/engines/srba.htm |archive-url=https://web.archive.org/web/20020301084629/http://www.astronautix.com/engines/srba.htm |url-status=dead |archive-date=March 1, 2002 |title=SRB-A |encyclopedia=Encyclopedia Astronautica |accessdate=13 January 2016}}</ref>
| {{nts|2,250,000}}
|
| {{nts|76,400}} with fuel
|
|
|-
| [[Engineering:UA120|UA120]]7
| {{Flag|USA}}
| [[Company:United Technologies|United Technologies]]
| Titan IV
| Booster
| [[Chemistry:Polybutadiene acrylonitrile|PBAN]]
| {{n/a|Solid fuel}}
| {{nts|272}}<ref name="UA1207">{{cite encyclopedia |url=http://www.astronautix.com/engines/ua1207.htm |title=UA1207 |archive-url=https://web.archive.org/web/20160304000325/http://www.astronautix.com/engines/ua1207.htm |archive-date=4 March 2016 |encyclopedia=Encyclopedia Astronautica |accessdate=27 December 2015 |url-status=dead }}</ref> <br/>{{nts|245}} <small>(SL)</small>
| {{nts|7,116,000}} <br/>{{nts|6,410,400}} <small>(SL)</small>
|
| {{nts|319,330}} <br/>with fuel
|
|
|-
| Viking 2
| {{EUR}}
| Snecma
| [[Engineering:Ariane 1|Ariane 1]]
| 1st
| [[Chemistry:Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]]&thinsp;/&thinsp;UDMH
| [[Physics:Gas-generator cycle|Gas generator]]
|
| {{nts|690,000}} <br/>{{nts|611,200}} <small>(SL)</small>
|
| {{nts|776}}
| {{nts|90.67}}
|
|-
| Viking 2B
| {{EUR}}
| Snecma
| [[Engineering:Ariane 2|Ariane 2]], [[Engineering:Ariane 3|3]]
| 1st
| [[Chemistry:Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]]&thinsp;/&thinsp;[[Chemistry:UH 25|UH&thinsp;25]]
| [[Physics:Gas-generator cycle|Gas generator]]
|
| {{nts|643,000}} <small>(SL)</small>
|
| {{nts|776}}
| {{nts|84.5}}
|
|-
| Viking 4
| {{EUR}}
| Snecma
| [[Engineering:Ariane 1|Ariane 1]]
| 2nd
| [[Chemistry:Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]]&thinsp;/&thinsp;UDMH
| [[Physics:Gas-generator cycle|Gas generator]]
|
| {{nts|713,000}}
|
| {{nts|826}}
| {{nts|88}}
|
|-
| Viking 4B
| {{EUR}}
| Snecma
| [[Engineering:Ariane 2|Ariane 2]], [[Engineering:Ariane 3|3]], [[Engineering:Ariane 4|4]]
| 2nd
| [[Chemistry:Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]]&thinsp;/&thinsp;[[Chemistry:UH 25|UH&thinsp;25]]
| [[Physics:Gas-generator cycle|Gas generator]]
|
| {{nts|800,000}}
|
| {{nts|826}}
| {{nts|98.76}}
|
|-
| Viking 5C
| {{EUR}}
| Snecma
| [[Engineering:Ariane 4|Ariane 4]]
| 1st
| [[Chemistry:Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]]&thinsp;/&thinsp;[[Chemistry:UH 25|UH&thinsp;25]]
| [[Physics:Gas-generator cycle|Gas generator]]
|
| {{nts|758,000}} <br/>{{nts|678,000}} <small>(SL)</small>
|
| {{nts|826}}
| {{nts|93.57}}
|
|-
| Viking 6
| {{EUR}}
| Snecma
| [[Engineering:Ariane 4|Ariane 4]]
| [[Engineering:Booster (rocketry)|Booster]]
| [[Chemistry:Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]]&thinsp;/&thinsp;[[Chemistry:UH 25|UH&thinsp;25]]
| [[Physics:Gas-generator cycle|Gas generator]]
|
| {{nts|750,000}}
|
| {{nts|826}}
| {{nts|92.59}}
|
|-
| [[Engineering:Vulcain (rocket engine)|Vulcain]] <br/><small>HM-60</small>
| {{EUR}}
| Snecma
| [[Engineering:Ariane 5|Ariane 5]]
| 1st
| [[Chemistry:Liquid hydrogen|LH<sub>2</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|439}}<ref name="Vulcain_Astrium">{{cite web | url=http://cs.astrium.eads.net/sp/launcher-propulsion/rocket-engines/vulcain-rocket-engine.html | title=Vulcain Astrium | publisher=[[Company:Airbus Defence and Space|Airbus Defence and Space]] | accessdate=27 December 2011 | url-status=dead | archive-url=https://web.archive.org/web/20120225051943/http://cs.astrium.eads.net/sp/launcher-propulsion/rocket-engines/vulcain-rocket-engine.html | archive-date=2012-02-25 }}</ref> <br/>{{nts|326}} <small>(SL)</small><ref name="Vulcain_Astronautix">{{cite encyclopedia | url= http://www.astronautix.com/v/vulcain.html | archive-url= https://web.archive.org/web/20161228033910/http://astronautix.com/v/vulcain.html | url-status= dead | archive-date= December 28, 2016 | title=Vulcain | encyclopedia=Encyclopedia Astronautica | accessdate=27 December 2011}}</ref>
| {{nts|1,113,000}}<ref name="Vulcain_Astrium" /> <br/>{{nts|773,200}} <small>(SL)</small><ref name="Vulcain_Astronautix" />
| {{nts|109}}<ref name="Vulcain_Astrium" />
| {{nts|1,300}}<ref name="Vulcain_Astronautix" />
| {{nts|84.38}}
|
|-
| [[Engineering:Vulcain (rocket engine)|Vulcain 2]]
| {{EUR}}
| Snecma
| [[Engineering:Ariane 5|Ariane 5]]
| 1st
| [[Chemistry:Liquid hydrogen|LH<sub>2</sub>]]&thinsp;/&thinsp;[[Astronomy:LOX|LOX]]
| [[Physics:Gas-generator cycle|Gas generator]]
| {{nts|429}}<ref name="Vulcain2_Astrium">{{cite web | url=http://cs.astrium.eads.net/sp/launcher-propulsion/rocket-engines/vulcain-2-rocket-engine.html | title=Vulcain Astrium | publisher=[[Company:Airbus Defence and Space|Airbus Defence and Space]] | accessdate=27 December 2011 | url-status=dead | archive-url=https://web.archive.org/web/20120327075131/http://cs.astrium.eads.net/sp/launcher-propulsion/rocket-engines/vulcain-2-rocket-engine.html | archive-date=2012-03-27 }}</ref> <br/>{{nts|318}} <small>(SL)</small><ref name="Vulcain2_Astronautix">{{cite encyclopedia | url= http://www.astronautix.com/v/vulcain2.html | archive-url= https://web.archive.org/web/20161228055501/http://astronautix.com/v/vulcain2.html | url-status= dead | archive-date= December 28, 2016 | title=Vulcain 2 | encyclopedia=Encyclopedia Astronautica | accessdate=27 December 2011}}</ref>
| {{nts|1,359,000}}<ref name="Vulcain2_Astrium" /> <br/>{{nts|939,500}} <small>(SL)</small><ref name="Vulcain2_Astronautix" />
| {{nts|117.3}}<ref name="Vulcain2_Astrium" />
| {{nts|1,800}}<ref name="Vulcain2_Astrium" />
| {{nts|77.04}}
|
|-
| Waxwing
| {{UK}}
| Bristol Aerojet
| Black Arrow
| Upper
|
| {{n/a|Solid fuel}}
| {{nts|278}}<ref name="Waxwing">{{cite encyclopedia |url= http://www.astronautix.com/b/blackarrow-3.html |archive-url= https://web.archive.org/web/20161228022014/http://astronautix.com/b/blackarrow-3.html |url-status= dead |archive-date= December 28, 2016 |title=Black Arrow-3 |encyclopedia=Encyclopedia Astronautica |accessdate=26 April 2013}}</ref> <br/>{{nts|245}} <small>(SL)</small>
| {{nts|29,400}} <br/>{{nts|25,900}} <small>(SL)</small>
|
| {{nts|87}}
| {{nts|34.48}}
|
|}

== See also ==
* [[Astronomy:Comparison of orbital launch systems|Comparison of orbital launch systems]]
* [[Engineering:Comparison of orbital launchers families|Comparison of orbital launchers families]]
* [[Engineering:Comparison of crewed space vehicles|Comparison of crewed space vehicles]]
* [[Engineering:Comparison of space station cargo vehicles|Comparison of space station cargo vehicles]]
* [[Astronomy:Comparison of solid-fuelled orbital launch systems|Comparison of solid-fuelled orbital launch systems]]
* [[Astronomy:List of space launch system designs|List of space launch system designs]]
* [[Engineering:List of orbital launch systems|List of orbital launch systems]]

==Notes==
{{notelist}}

==References==
{{reflist|30em}}


{{DEFAULTSORT:Orbital rocket engine comparison}}
[[Category:Spaceflight]]
[[Category:Technological comparisons]]
[[Category:Space lists]]
[[Category:Rocket engines]]

{{Sourceattribution|Comparison of orbital rocket engines}}