- Tsyklon-4
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Tsyklon-4 Function Carrier rocket Manufacturer Yuzhmash, JSC "Khartron" (control system) Country of origin 
UkraineSize Stages 3 Associated rockets Family R-36, Tsyklon Comparable Zenit Launch history Status Development Launch sites Alcântara
Baikonur Site 90
Plesetsk Site 32First Stage - 11K69 Engines 1 RD-261 + RD-855 Vernier engine Thrust 3,032 kilonewtons (682,000 lbf) Specific impulse 301 sec Burn time 120 seconds Fuel N2O4/UDMH Second Stage - 11S692 Engines 1 RD-262 + RD-856 Vernier engine Thrust 941 kilonewtons (212,000 lbf) Specific impulse 318 sec Burn time 160 seconds Fuel N2O4/UDMH Third Stage Engines RD-861К Thrust 7,91 ts Specific impulse 330 sec Burn time 370 sec Fuel N2O4/UDMH The Tsyklon-4[1] or Cyclone-4, also known as Tsiklon-4, is a Ukrainian carrier rocket which is being developed for commercial satellite launches. Derived from the Tsyklon-3, it has a new third stage, a larger payload fairing, and a modernised flight control system compared to its predecessor.[2] Control system has been developed by the JSC "Khartron"[3][4].
Contents
Specifications
Tsyklon-4 is a three-stage-to-orbit expendable launch system built on the successful Tsyklon-3 rocket and it uses its first two stages. The new features are mostly concentrated in the newly developed third stage:
- The third stage has a three times larger propellant capacity;
- The new rocket engine RD-861K with multiple ignition capability (3 to 5 times);
- A modern western-like control system capable of precise orbit injections;
- A new fairing derived from Ariane 4 is under development. It has a diameter of 4 meters, controlled temperature and cleanness conditions inside.
Also Tsyklon-4 will improve the fueling procedure, which will allow to capture toxic vapors of the propellant.
The new system will be able to inject 5,300 kg into Low Earth Orbit, or up to 1,800 kg into a Geo-Transfer Orbit.
Launch facilities
'Tsyklon-4 will be launched primarily from the Alcântara Launch Centre in Brazil[5]. Launches from other sites, including the Baikonur and Plesetsk Cosmodromes, are also reported to be planned[6].
Development history
Development began in 2002, with the maiden flight aimed for 2006. Following a series of production delays, this has slipped, and is now scheduled for 2011. Alcântara Tsyklon Space has been established as a Launch Service Provider for the Tsyklon-4.[7]
The planned payload capacity of the Tsyklon-4 is 5,500 kilograms (12,000 lb) to a 500 kilometre circular low Earth orbit, or 1,700 kilograms (3,700 lb) to geosynchronous transfer orbit.[8]
In 2008, it was reported that Brazil may pull out of the programme in favour of an alternative partnership between it and Russia to develop an Angara-derived rocket.[9] However late 2009 Ukrainian President Viktor Yushchenko and Brazilian President Luiz Inácio Lula da Silva signed a joint declaration which included a commitment to launch the first Tsyklon-4 by the end of 2010 from Alcântara.[10]
See also
- Kosmos (rocket family)
- Tsyklon-2
- Zenit (rocket)
References
- ^ Wade, Mark. "Tsyklon 4". Encyclopedia Astronautica. http://www.astronautix.com/lvs/tsyklon4.htm.
- ^ "Cyclone-4 Launch Vehicle". NPO InterCoS. http://www.npointercos.jp/Cyclone4.html.
- ^ Control systems for intercontinental ballistic missiles and launch vehicles
- ^ Krivonosov, Khartron: Computers for rocket guidance systems
- ^ Stathopoulos, Vic. "Tsyklon". Aerospaceguide.net. http://www.aerospaceguide.net/tsyklon.html.
- ^ "Brazil - Launch Vehicles". GlobalSecurity.org. http://www.globalsecurity.org/space/world/brazil/lv.htm.
- ^ "Tsyklon (Cyclone)". Space Launch Report. http://www.spacelaunchreport.com/tsyklon.html.
- ^ "Cyclone 4". National Space Agency of Ukraine. http://www.nkau.gov.ua/nsau/catalogNEW.nsf/proectE/2D357C5C6B8786B2C3256BF8004C1C4D?OpenDocument&Lang=E.
- ^ Zaitsev, Yury (September 17, 2008). "Russia Begins Elbowing Ukraine Out From Brazil's Space Program". RIA Novosti. http://en.rian.ru/analysis/20080917/116874710.html.
- ^ "Brazil, Ukraine to launch rocket together in 2010". UNIAN. December 3, 2009. http://www.unian.net/eng/news/news-350103.html.
External links
Expendable launch systems Current Ariane 5 · Atlas V · Delta (II · IV) · Dnepr-1 · GSLV · H-IIA · H-IIB · Kaituozhe-1 · Kosmos-3M · Long March (1D · 2C · 2D · 2F · 3A · 3B · 3C · 4B · 4C) · Minotaur (I · IV) · Naro-1 · Paektusan · Pegasus · Proton (K · M) · PSLV · Rokot · Safir · Shavit · Shtil' · Start-1 · Strela · Soyuz (U · FG · 2) · Taurus · Unha · VLS-1 · Volna · Zenit (2 · 2M · 3SL · 3SLB)
Planned Angara · Athena (Ic · IIc) · GSLV III · Haas · Long March (5 · 6 · 7) · Minotaur V · RPS-420 · Rus-M · Soyuz-1 · Simorgh · TSLV · Taurus II · Tsyklon-4 · Vega · Zenit-3F
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- - Falcon 1 designed for partial reuse, however recovery failed on the first three flights and remaining vehicles were flown expendably
Categories:- Space launch vehicles of Ukraine
- Rocketry stubs
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