This is a list of upper stages used on rockets.

Upper stages

This list is incomplete; you can help by adding missing items. (February 2011)

bold denotes active configurations
italics denotes configurations in development

Name Country Flown on Proposed for Status Remarks
Advanced Cryogenic Evolved Stage  United States Vulcan In development
Agena  United States Atlas, Thor, Thorad, Titan IIIB Retired
AVUM European Union ESA/ Italy Vega In service
Gamma-2 United Kingdom United Kingdom Black Arrow Retired
Blok D  Soviet Union
 Russia 		N1, Proton, Proton-K Retired
Blok DM-03  Russia Proton-M Angara A5 In service
Blok DM-SL  Soviet Union
 Russia 		Zenit-3SL In service
Briz-KM  Russia Rokot Angara 1.2 In service
Briz-M  Russia Proton-K, Proton-M, Angara A5 In service
Castor 30  United States Antares In service
Centaur  United States Atlas, Atlas G, Atlas I, Atlas II, Atlas III, Atlas V, Titan IIIE, Titan IV Vulcan In service
CTS  People's Republic of China Long March 2C In service
Delta Cryogenic Second Stage  United States Delta III, Delta IV Space Launch System Block I (as Interim Cryogenic Propulsion Stage) In service
Electron Second Stage New Zealand New Zealand Electron In service
Exploration Upper Stage  United States Space Launch System In development
Falcon 9 Second Stage  United States Falcon 9, Falcon Heavy In service
Fregat  Russia Soyuz-U, Soyuz-FG, Soyuz-2, Zenit-3F In service
Inertial Upper Stage  United States Titan 34D, Titan IV, Space Shuttle Retired
KVTK  Russia Angara A5, Energia In development
PAM-G  India Geosynchronous Satellite Launch Vehicle In development
Payload Assist Module/Star-48B  United States Delta 3000, Delta 4000, Delta II, Space Shuttle Delta 5000 In service
Salman  Iran Qased, Qaem-100 In Service
Saman-1  Iran Simorgh In Service
Starship  United States Starship In development It is reusable, and is meant to use orbital refueling.
Transtage  United States Titan IIIA, Titan IIIC, Titan 34D Retired
Volga  Russia Soyuz-2.1a. Soyuz-2-1v
Yuanzheng-1  People's Republic of China Long March 3B, Long March 3C In service
Yuanzheng-1A  People's Republic of China Long March 7 In service
Yuanzheng-2  People's Republic of China Long March 5 In service

See also

References

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