World Library  
Flag as Inappropriate
Email this Article
 

Soyuz-U2

Soyuz-U2

The Soyuz TMA-3 vehicle launches from the Baikonur Cosmodrome
Function Orbital carrier rocket
Manufacturer Samara Progress
Country of origin Soviet Union
(Russia)
Size
Height 34.54 metres (113.3 ft)
Diameter 2.95 metres (9 ft 8 in)
Mass 297,800 kilograms (656,500 lb)
Stages 2
Capacity
Payload to
LEO
7,050 kilograms (15,540 lb)
Associated rockets
Family R-7 (Soyuz)
Launch history
Status Retired
Launch sites LC-1/5 & 31/6, Baikonur
Possibly Plesetsk
Total launches 66-92
Successes 66-90
Failures 0-2
First flight 23 December 1982
Last flight 3 or 29 September 1995
Notable payloads Soyuz
Progress
Yantar

The Soyuz-U2 (GRAU index 11A511U2) was a Soviet, later Russian, carrier rocket. It was derived from the Soyuz-U, and a member of the R-7 family of rockets. It featured increased performance compared to the baseline Soyuz-U, due to the use of syntin propellant, as opposed to RP-1 paraffin, used on the Soyuz-U.[1]

The increased payload of the Soyuz-U2 allowed heavier spacecraft to be launched, while lighter spacecraft could be placed in higher orbits, compared to those launched by Soyuz-U rockets. In 1996, it was announced that the Soyuz-U2 had been retired, as the performance advantage gained through the use of syntin did not justify the additional cost of its production. The final flight had occurred in the previous year.[2]

The Soyuz-U2 was primarily used to launch Yantar reconnaissance satellites, and Soyuz and Progress spacecraft to the Mir space station. Due to the similarity between the Soyuz-U and U2, the exact number of Soyuz-U2 launches is in doubt, with estimates ranging from 66 to 92 launches. It is also unclear how many launches failed, however most sources suggest there were either zero or two failures.[1][2][3][4]

See also

References

  1. ^ a b Wade, Mark. "Soyuz 11A511U2". Encyclopedia Astronautica. Retrieved 2008-12-24. 
  2. ^ a b "Soyuz-U2 (Russian Federation), SPACE LAUNCH VEHICLES - ORBITAL". Jane's. Retrieved 2008-12-24. 
  3. ^ Krebs, Gunter. "Soyuz-U2 (11A511U2)". Gunter's Space Page. Retrieved 2008-12-24. 
  4. ^ McDowell, Jonathan. "R-7 family". Launch Lists. Jonathan's Space Page. Retrieved 2008-12-24. 
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 


Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.