RD-843: Difference between revisions
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|image_size = |
|image_size = |
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|caption = |
|caption = |
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|country_of_origin=[[Ukraine]] |
|country_of_origin= [[Ukraine]] |
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|date = |
|date = |
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|first_date =2012-02-13 |
|first_date = 2012-02-13 |
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|last_date = |
|last_date = |
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|designer =[[Yuzhnoye Design Bureau]] |
|designer = [[Yuzhnoye Design Bureau]] |
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|manufacturer =[[Yuzhmash]] |
|manufacturer = [[Yuzhmash]] |
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|purpose =Upper Stage |
|purpose = Upper Stage |
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|associated =[[Vega (rocket)|Vega]] |
|associated = [[Vega (rocket)|Vega]] |
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|predecessor =[[RD-869]] |
|predecessor = [[RD-869]] |
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|successor = |
|successor = |
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|status =In Production |
|status = In Production |
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|type =liquid |
|type = liquid |
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|fuel =[[UDMH]] |
|fuel = [[UDMH]] |
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|oxidiser ={{N2O4}} |
|oxidiser = {{N2O4}} |
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|mixture_ratio =2.0 |
|mixture_ratio = 2.0 |
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|cycle =[[Pressure-fed engine|Pressure Fed]] |
|cycle = [[Pressure-fed engine|Pressure Fed]] |
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|pumps = |
|pumps = |
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|description = |
|description = |
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|combustion_chamber=1 |
|combustion_chamber = 1 |
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|nozzle_ratio = |
|nozzle_ratio = |
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|thrust = |
|thrust = |
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|thrust_at_altitude= |
|thrust_at_altitude = |
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|thrust(Vac) ={{convert|2,452|N|lbf}} |
|thrust(Vac) = {{convert|2,452|N|lbf}} |
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|thrust(SL) = |
|thrust(SL) = |
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|thrust_to_weight= |
|thrust_to_weight= |
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|chamber_pressure={{convert|2.04|MPa|abbr=on}} |
|chamber_pressure= {{convert|2.04|MPa|abbr=on}} |
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|specific_impulse= |
|specific_impulse= |
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|specific_impulse_vacuum=315.5 seconds |
|specific_impulse_vacuum = 315.5 seconds |
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|specific_impulse_sea_level= |
|specific_impulse_sea_level = |
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|total_impulse = |
|total_impulse = |
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|burn_time =up to 667s |
|burn_time = up to 667s |
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|capacity = |
|capacity = |
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|length = |
|length = |
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|diameter = |
|diameter = |
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|dry_weight ={{convert|15.93|kg|lb}} |
|dry_weight = {{convert|15.93|kg|lb}} |
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|used_in =[[AVUM]] |
|used_in = [[AVUM]] |
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|references =<ref name="yuzhmash-rd843" /><ref name="yuzhnoye-rd843" /><ref name="acta-Astronautica-127p693-698" /><ref name="ukrspexport-rd843" /> |
|references = <ref name="yuzhmash-rd843" /><ref name="yuzhnoye-rd843" /><ref name="acta-Astronautica-127p693-698" /><ref name="ukrspexport-rd843" /> |
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|notes = |
|notes = |
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}} |
}} |
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It was developed by [[Yuzhnoye Design Bureau]] for [[Avio]] and is manufactured by [[Yuzhmash]]. It uses the [[RD-869]] thrust chamber, the old Soviet [[ICBM]] [[SS-18]] Satan final stage engine from which it is evolved, and which was also designed by Yuzhnoye. The RD-843 ground test campaign included 74 tests, 140 ignitions, reaching a total of 8201 s, which is approximately 12 service lives on 4 engines. As of June 2020 it has been successfully used on 14 orbital launches.<ref name="uprom-vega" /> |
It was developed by [[Yuzhnoye Design Bureau]] for [[Avio]] and is manufactured by [[Yuzhmash]]. It uses the [[RD-869]] thrust chamber, the old Soviet [[ICBM]] [[SS-18]] Satan final stage engine from which it is evolved, and which was also designed by Yuzhnoye. The RD-843 ground test campaign included 74 tests, 140 ignitions, reaching a total of 8201 s, which is approximately 12 service lives on 4 engines. As of June 2020 it has been successfully used on 14 orbital launches.<ref name="uprom-vega" /> |
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It is currently used as the main engine of [[Vega (rocket)|Vega]]'s [[AVUM]] upper stage. |
It is currently used as the main engine of [[Vega (rocket)|Vega]]'s [[AVUM]] upper stage. |
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==See also== |
==See also== |
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*[[AVUM]] - The upper stage of the Vega rocket that uses the RD-843 as its main engine. |
*[[AVUM]] - The upper stage of the Vega rocket that uses the RD-843 as its main engine. |
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{{Rocket engines}} |
{{Rocket engines}} |
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| ⚫ | |||
[[Category:Rocket engines using hypergolic propellant]] |
[[Category:Rocket engines using hypergolic propellant]] |
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[[Category:Yuzhmash rocket engines]] |
[[Category:Yuzhmash rocket engines]] |
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[[Category:Rocket engines of Ukraine]] |
[[Category:Rocket engines of Ukraine]] |
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| ⚫ | |||
Revision as of 13:20, 3 January 2021
| Country of origin | Ukraine |
|---|---|
| First flight | 2012-02-13 |
| Designer | Yuzhnoye Design Bureau |
| Manufacturer | Yuzhmash |
| Application | Upper Stage |
| Associated LV | Vega |
| Predecessor | RD-869 |
| Status | In Production |
| Liquid-fuel engine | |
| Propellant | N2O4 / UDMH |
| Mixture ratio | 2.0 |
| Cycle | Pressure Fed |
| Configuration | |
| Chamber | 1 |
| Performance | |
| Thrust, vacuum | 2,452 newtons (551 lbf) |
| Chamber pressure | 2.04 MPa (296 psi) |
| Specific impulse, vacuum | 315.5 seconds |
| Burn time | up to 667s |
| Dimensions | |
| Dry mass | 15.93 kilograms (35.1 lb) |
| Used in | |
| AVUM | |
| References | |
| References | [1][2][3][4] |
The RD-843 is a Ukrainian single nozzle liquid propellant rocket engine burning pressure-fed UDMH and nitrogen tetroxide. It is rated for up to 5 restarts, and can gimbal up to 10 degrees in each direction.[2]
It was developed by Yuzhnoye Design Bureau for Avio and is manufactured by Yuzhmash. It uses the RD-869 thrust chamber, the old Soviet ICBM SS-18 Satan final stage engine from which it is evolved, and which was also designed by Yuzhnoye. The RD-843 ground test campaign included 74 tests, 140 ignitions, reaching a total of 8201 s, which is approximately 12 service lives on 4 engines. As of June 2020 it has been successfully used on 14 orbital launches.[5]
It is currently used as the main engine of Vega's AVUM upper stage.
See also
- AVUM - The upper stage of the Vega rocket that uses the RD-843 as its main engine.
- Vega - The ESA small rocket that uses AVUM.
- Yuzhnoe Design Bureau - The RD-843 designer bureau.
- Yuzhmash - A multi-product machine-building company that's closely related to Yuzhnoe and manufactures the RD-843.
References
- ^ "Liquid rocket engine RD-843". Yuzhmash. Retrieved 2015-05-29.
- ^ a b "RD-843". Yuzhnoye. Retrieved 2015-05-29.
- ^ Degtyarev, Alexander; Kushnaryov, Alexander; Shulga, Vladimir; Ventskovsky, Oleg (2016-10-01). "Yuzhnoye's new liquid rocket engines as enablers for space exploration". Acta Astronautica. 127: 693–698. Bibcode:2016AcAau.127..693D. doi:10.1016/j.actaastro.2016.04.006.
- ^ "RD-843". Defense Industry Of Ukraine Products And Services. Retrieved 2016-07-11.
- ^ "Vega".
External links
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