Editing Gas-generator cycle (section)

== Examples ==
*[[RD-107]], RD-108—Soviet engine type developed in the 1950s, used on [[R-7 (rocket family)|R-7 family]] vehicles including the active [[Soyuz-2]].<ref name="rd107">{{cite web |title=RD-107 |url=http://astronautix.com/engines/rd0107.htm |url-status=dead |archive-url=https://web.archive.org/web/20140209170032/http://www.astronautix.com/engines/rd0107.htm |archive-date=2014-02-09 |publisher=[[Encyclopedia Astronautica]]}}</ref>
*[[Rocketdyne F-1|F-1]]—[[RP-1]]/[[Liquid oxygen|LOX]] engine used on the first stage of [[Saturn V]]. Most powerful single combustion chamber liquid-fueled engine ever flown.<ref name="F1">{{cite web |title=F-1 Engine Fact Sheet |url=http://history.msfc.nasa.gov/saturn_apollo/documents/F-1_Engine.pdf |url-status=dead |archive-url=https://web.archive.org/web/20160413234758/http://history.msfc.nasa.gov/saturn_apollo/documents/F-1_Engine.pdf |archive-date=2016-04-13 |access-date=2013-04-17}}</ref>
*[[Rocketdyne J-2|J-2]]—Upper stage [[Liquid hydrogen|LH2]]/LOX engine developed in the 1960s and used on Saturn V.
*[[RS-27A]]—American RP-1/LOX engine first flown in 1990.<ref name="pump">{{cite web |author=Joe Stangeland |title=Turbopumps for Liquid Rocket Engines |url=http://www.pwrengineering.com/articles/turbopump.htm |url-status=dead |archive-url=https://web.archive.org/web/20121018020226/http://www.pwrengineering.com/articles/turbopump.htm |archive-date=2012-10-18}}</ref>
*[[Vulcain (rocket engine)|Vulcain]]—A family of European first stage engines using LH2/LOX flown on [[Ariane 5]] and [[Ariane 6]].<ref name="vulcain">{{cite web |title=Vulcain-2 Cryogenic Engine Passes First Test with New Nozzle Extension |url=http://www.esa.int/esapub/bulletin/bullet102/Coulon102.pdf |publisher=[[ESA]]}}</ref>
*[[Merlin (rocket engine family)|Merlin]]—RP-1/LOX engine developed by [[SpaceX]] for [[Falcon 9]] and [[Falcon Heavy]], used on both first and second stages.<ref>{{cite web |title=SpaceX Merlin Engine |url=http://www.spacex.com/falcon1.php#merlin_engine |url-status=dead |archive-url=https://web.archive.org/web/20110103230037/http://www.spacex.com/falcon1.php#merlin_engine |archive-date=2011-01-03 |publisher=SpaceX}}</ref>
*[[RS-68]]—LH2/LOX engine built in the 1990s by [[Aerojet Rocketdyne]]. Largest hydrogen-fueled rocket engine ever flown.<ref name="D4">{{cite web |title=Delta 4 Data Sheet |url=http://www.spacelaunchreport.com/delta4.html}}</ref>
*[[CE-20]]—Indian LH2/LOX engine developed in the 2010s for use on the [[LVM3]] launch vehicle.<ref name="ce">{{cite conference |title=Structural Analysis of Propulsion System Components of an Indigenous Cryogenic Rocket Engine
 |author=Asraff, A and Muthukumar, R and Ramnathan, T and Balan, C
 |conference=44TH AIAA/ASME/SAE/ASEE JOINT PROPULSION CONFERENCE & EXHIBIT
 |year=2008
 |url=http://arc.aiaa.org/doi/abs/10.2514/6.2008-5120 |doi=10.2514/6.2008-5120 |url-access=subscription
 }}</ref>
*[[YF-20]]—Chinese [[Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]]/[[Unsymmetrical dimethylhydrazine|UDMH]] engine developed in the 1990s and used on [[Long March (rocket family)|Long March]] 2, 3, and 4.
*[[TQ-12]]—[[Methane|LCH4]]/LOX engine developed by [[LandSpace]]. First flew in 2022 on [[Zhuque-2]].