RD-181
E592136
RD-181 is a Russian-built liquid-fueled rocket engine used to power the first stage of certain orbital launch vehicles, notably Northrop Grumman’s Antares.
All labels observed (1)
| Label | Occurrences |
|---|---|
| RD-181 canonical | 1 |
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
liquid-fueled rocket engine
ⓘ
rocket engine ⓘ |
| application | expendable launch vehicles ⓘ |
| chamberPressure | approximately 260 bar ⓘ |
| combustionChambers | 1 ⓘ |
| control | thrust vector control via gimbaling ⓘ |
| coolingMethod | regenerative cooling ⓘ |
| countryOfOrigin | Russia ⓘ |
| customer |
Northrop Grumman
NERFINISHED
ⓘ
Orbital ATK NERFINISHED ⓘ |
| derivedFrom | RD-191 ⓘ |
| designedFor | medium-lift launch vehicles ⓘ |
| developer | NPO Energomash NERFINISHED ⓘ |
| engineCycle | oxidizer-rich staged combustion ⓘ |
| exportedTo | United States NERFINISHED ⓘ |
| fuel | RP-1 kerosene ⓘ |
| gimbalRange | up to about 5 degrees ⓘ |
| ignitionType | pyrotechnic ignition system ⓘ |
| manufacturer | NPO Energomash NERFINISHED ⓘ |
| marketedFor | commercial launch services ⓘ |
| nozzleQuantity | 1 ⓘ |
| oxidizer | liquid oxygen ⓘ |
| propellantCombination | LOX/RP-1 ⓘ |
| propellantFeedSystem | turbopump-fed ⓘ |
| propellantType |
RP-1 kerosene
ⓘ
liquid oxygen (LOX) ⓘ |
| purpose | to provide high-performance first-stage propulsion for Antares ⓘ |
| relatedEngine |
RD-180
NERFINISHED
ⓘ
RD-191 NERFINISHED ⓘ |
| replaces | AJ26 engines on Antares ⓘ |
| reusability | designed for expendable use ⓘ |
| role | main engine ⓘ |
| specificImpulseSeaLevel | approximately 311 seconds ⓘ |
| specificImpulseVacuum | approximately 339 seconds ⓘ |
| stage | first stage ⓘ |
| status | operational ⓘ |
| throttleCapability | throttleable ⓘ |
| thrustSeaLevel | approximately 1.86 MN ⓘ |
| thrustVacuum | approximately 1.92 MN ⓘ |
| usedBy | United States launch vehicles ⓘ |
| usedFor | orbital launch vehicles first stage propulsion ⓘ |
| usedFrom | mid-2010s ⓘ |
| usedIn |
Antares 200-series first stage
NERFINISHED
ⓘ
Antares 230 launch vehicle NERFINISHED ⓘ Antares 230+ launch vehicle NERFINISHED ⓘ |
| usedOn | Antares launch vehicle NERFINISHED ⓘ |
| usedOnMission | Cygnus cargo resupply missions to the ISS ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.