 Illustration of Tsyklon-2 | |
| Function | Carrier rocket |
|---|---|
| Manufacturer | Yuzhmash |
| Country of origin | Soviet Union (Ukraine) |
| Size | |
| Height | 39.7 m (130 ft)[1] |
| Diameter | 3 m (9.8 ft) |
| Mass | 182,000 kg (401,000 lb) |
| Stages | 2 |
| Capacity | |
| Payload tolow Earth orbit | |
| Mass | 2,820 kg (6,220 lb) |
| Associated rockets | |
| Family | R-36,Tsyklon |
| Comparable | Delta II |
| Launch history | |
| Status | Retired |
| Launch sites | Baikonur Cosmodrome LC-90 |
| Total launches | 106 |
| Success(es) | 105 |
| Failure | 1 |
| First flight | 6 August 1969 |
| Last flight | 24 June 2006 |
| Carries passengers or cargo | IS-A/IS-P RORSAT EORSAT |
| First stage – 11S681 | |
| Powered by | 1RD-251 |
| Maximum thrust | 2,640 kN (590,000 lbf) |
| Specific impulse | 301 sec |
| Burn time | 120 seconds |
| Propellant | N2O4 /UDMH |
| Second stage – 11S682 | |
| Powered by | 1RD-252 |
| Maximum thrust | 940 kN (210,000 lbf) |
| Specific impulse | 317 sec |
| Burn time | 160 seconds |
| Propellant | N2O4 /UDMH |
| Third stage | |
| Powered by | 1RD-861 |
| Maximum thrust | 77.96 kN (17,530 lbf) |
| Specific impulse | 317 sec |
| Burn time | 112 seconds |
| Propellant | N2O4 /UDMH |
TheTsyklon-2 (Ukrainian:Циклон-2,lit. 'Cyclone-2'), also known asTsiklon-2 andTsyklon-M (known asSL-11 by the United StatesDoD),GRAU index 11K69, was aSoviet, laterUkrainian,orbitalcarrier rocket used from the 1960s to the late 2000s. The rocket had 106 launches, one suborbital and 105 orbital, with only one failure and92 consecutive successful launches, from 27 December 1973 with the launch of Kosmos 626 to25 June 2006 with the final flight of the Tsyklon-2,which makes this launcher the most reliable rocket, having been launched more than 100 times.
A derivative of theR-36ICBM, and a member of theTsyklon family, the Tsyklon-2 made its maiden flight on 6 August 1969, and conducted 106 flights, the last one occurring on 24 June 2006. It was the most reliable Soviet/Russian carrier rocket ever used, and launched more than 100 times having failed only once, and the second most reliable carrier rocket overall, behind theAtlas II that was launched only 63 times.[2] Along with otherR-36 family memberTsyklon-3, the Tsyklon-2 was retired in favor of new-generation and all-Russian carrier rockets, such as theAngara and Soyuz-2.
Like the Tsyklon-3, the Tsyklon-2 was derived from the R-36Scarp ICBM. However, it did not have a third stage, like the Tsyklon-3 did, also it was slightly shorter and had a lower weight mass when fueled.[3]
 Ukrainian launch vehicles | ||
|---|---|---|
| Cyclone (Tsyklon) |  | |
| Zenit | ||
| Mayak | ||
| Dnipro (Dnepr) | ||
| International projects | ||
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