RD-843
Sign in to saveAlso known as MEA, Main Engine AVUM+, AVUM+ Main Engine
The RD-843 is a Ukrainian single nozzle liquid propellant rocket engine. It burns a hypergolic mixture of unsymmetrical dimethylhydrazine (UDMH) fuel with dinitrogen tetroxide (N2O4) oxidizer. It is pressure-fed. It is rated for up to 5 restarts, and can gimbal up to 10 degrees in each direction.
Described at
Liquid rocket engine RD-843 – Production Association Yuzhny Mashinbuilding Plant
yuzhmash.com →Link to a page describing this subject · 3,100 chars · not written by Vinony
Wikidata facts
- Mass
- 15.93
Show 4 more facts
- first flight
- 2012-02-13
- maximum thrust
- 250
- specific impulse by weight
- 315.5
Sources (2)
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4 sectionsContents
- See also
- Notes
- References
- External links
The RD-843 is a Ukrainian single nozzle liquid propellant rocket engine. It burns a hypergolic mixture of unsymmetrical dimethylhydrazine (UDMH) fuel with dinitrogen tetroxide (N2O4) oxidizer. It is pressure-fed. It is rated for up to 5 restarts, and can gimbal up to 10 degrees in each direction.
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 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 8,201 seconds, which is approximately 12 service lives on 4 engines. As of June 2020 it has been successfully used on 14 orbital launches.