Editing N1 (rocket) (section)

===Aftermath and engines===
The program was followed by the "Vulkan" concept for a huge launch vehicle using [[Syntin]]/[[LOX]] propellants, later replaced by [[LH2]]/[[LOX]] on the 2nd and 3rd stages. "Vulkan" was superseded by the [[Energia (rocket)|Energia]]/[[Buran (spacecraft)|Buran]] program in 1976.<ref name="petrovitch-vulkan">{{Cite web |last1=Petrovitch |first1=Vassili |title=Vulkan Description |url=https://www.buran-energia.com/energia/vulcain-vulkan-desc.php |url-status=live |archive-url=https://web.archive.org/web/20240111071244/https://www.buran-energia.com/energia/vulcain-vulkan-desc.php |archive-date=11 January 2024 |access-date=31 January 2015 |website=Buran-Energia.com }}</ref><ref name="astronautix-vulkan">{{Cite web |last1=Wade |first1=Mark |title=Vulkan |url=http://www.astronautix.com/v/vulkan.html |url-status=live |archive-url=https://web.archive.org/web/20240214140449/http://www.astronautix.com/v/vulkan.html |archive-date=14 February 2024 |access-date=31 January 2015 |website=Astronautix.com }}</ref>

About 150 of the upgraded engines for the N1F escaped destruction. Although the rocket as a whole was unreliable, the [[NK-33]] and [[NK-43]] engines are rugged and reliable when used as a standalone unit. In the mid-1990s, Russia sold 36 engines for [[USD|$]]1.1 million each and a license for the production of new engines to the US company [[Aerojet General]].<ref name="dawson2016">{{Cite book |last=Dawson |first=Linda |url=https://books.google.com/books?id=94ePDQAAQBAJ&pg=PA14 |title=The Politics and Perils of Space Exploration |date=22 November 2016 |publisher=[[Springer Science+Business Media|Springer]] |isbn=978-3-319-38813-7 |page=14 |doi=10.1007/978-3-319-38813-7 |lccn=2016948726 |archive-url=https://web.archive.org/web/20230910154449/https://books.google.com/books?id=94ePDQAAQBAJ&pg=PA14 |archive-date=10 September 2023 |url-status=live }}</ref>

The US company [[Kistler Aerospace]] worked on incorporating these engines into a new rocket design with the intention of offering commercial launch services, but the company eventually went into bankruptcy before seeing a single launch. Aerojet also modified the NK-33 to incorporate thrust vector control capability for [[Orbital Sciences Corporation|Orbital Science]]'s [[Antares (rocket)|Antares]] launch vehicle. Antares used two of these modified AJ-26 engines for first stage propulsion. The first four launches of the Antares were successful, but on the fifth launch the rocket exploded shortly after launch. Preliminary failure analysis by Orbital pointed to a possible turbopump failure in one NK-33/AJ-26. Given Aerojet's previous problems with the NK-33/AJ-26 engine during the modification and test program (two engine failures in static test firings, one of which caused major damage to the test stand) and the later in-flight failure, Orbital decided that the NK-33/AJ-26 was not reliable enough for future use.<ref name="sfi-20141124">{{Cite web |last1=Rhian |first1=Jason |date=24 November 2014 |title=Orbital's Cygnus – on a SpaceX Falcon 9? – SpaceFlight Insider |url=http://www.spaceflightinsider.com/missions/commercial/orbitals-cygnus-spacex-falcon-9/ |url-status=live |archive-url=https://web.archive.org/web/20160303002135/http://www.spaceflightinsider.com/missions/commercial/orbitals-cygnus-spacex-falcon-9/ |archive-date=3 March 2016 |access-date=13 February 2016 |website=Spaceflight Insider }}</ref>

In Russia, N1 engines were not used again until 2004, when the remaining 70 or so engines were incorporated into a new rocket design, the Soyuz 3.<ref name="harvey2007">{{Cite book |last1=Harvey |first1=Brian |url=https://books.google.com/books?id=kmTz6Phf5WYC&pg=PA201 |title=The Rebirth of the Russian Space Program |series=Springer Praxis Books |date=25 November 2007 |publisher=[[Springer Science+Business Media|Springer]] |isbn=978-0-387-71356-4 |edition=1st |location=New York |page=201 |doi=10.1007/978-0-387-71356-4 |lccn=2007922812 |archive-url=https://web.archive.org/web/20230910154449/https://books.google.com/books?id=kmTz6Phf5WYC&pg=PA201 |archive-date=10 September 2023 |url-status=live }}</ref><ref name="rsw-soyuz-3">{{Cite web |last1=Zak |first1=Anatoly |title=The history of the Soyuz-3 launch vehicle. |url=https://www.russianspaceweb.com/soyuz3_lv.html |url-status=live |archive-url=https://web.archive.org/web/20240215021421/https://www.russianspaceweb.com/soyuz3_lv.html |archive-date=15 February 2024 |access-date=27 January 2015 |website=russianspaceweb.com }}</ref> {{As of|2005}}, the project was frozen due to the lack of funding. Instead, the NK-33 was incorporated into the first stage of a [[Soyuz-2-1v|light variant of the Soyuz rocket]], which was first launched on 28 December 2013.<ref name="s101">{{Cite web |title=Soyuz 2-1v |url=https://spaceflight101.com/spacerockets/soyuz-2-1v/ |url-status=live |archive-url=https://web.archive.org/web/20230422152435/https://spaceflight101.com/spacerockets/soyuz-2-1v/ |archive-date=22 April 2023 |access-date=28 December 2013 |website=Spaceflight 101 }}</ref>