Ikar (rocket stage) explained

Ikar
Manufacturer:	Progress
Country-Origin:	Russia General characteristics^[1] Engines: 1 × S5.144^[2] Burntime: Up to 600 seconds (up to 50 starts) Fuel: /UDMH
Derivatives:	Volga

The Ikar was a rocket upper stage designed in Russia in 1999 to be used with the Soyuz-U rocket.^[3] It was derived from the propulsion module of the Yantar spy satellites.^[4]

Notes and References

1. Web site: IKAR Upper Stage. TsSKB-Progress. 21 December 2015.
2. Web site: Блок выведения 'Икар'. Spacetug 'Ikar'. www.cosmopark.ru. ru. 2016-11-04.
3. Web site: Soyuz 11A511U / Ikar . Astronautix.com . 2012-09-04 . dead . https://web.archive.org/web/20121005134352/http://astronautix.com/lvs/soyuikar.htm . 2012-10-05 .
4. Web site: 17D61 . Astronautix.com . 2012-09-04 . dead . https://web.archive.org/web/20121004194941/http://astronautix.com/engines/17d61.htm . 2012-10-04 .