HM7B

E290056

The HM7B is a European cryogenic rocket engine that powers the upper stages of Ariane launch vehicles, providing precise orbital insertion using liquid hydrogen and liquid oxygen propellants.

All labels observed (1)

Label Occurrences
HM7B canonical 5

How this entity was disambiguated

Statements (46)

Predicate Object
instanceOf cryogenic rocket engine ⓘ
liquid-fuel rocket engine ⓘ
agencyUser European Space Agency ⓘ
application commercial satellite launches ⓘ
scientific missions ⓘ
belongsToFamily HM7 engine family ⓘ
linked to: HM7 engine
burnTime up to 945 s ⓘ
chamberPressure 3.5 MPa ⓘ
countryOfOrigin Europe ⓘ
cycle gas-generator cycle ⓘ
designFeature extendable nozzle skirt ⓘ
hydrogen-cooled nozzle ⓘ
turbopump-fed system ⓘ
developedForProgram Ariane programme ⓘ
developmentStart 1970s ⓘ
enteredService 1980s ⓘ
heritageFrom HM7 engine ⓘ
improvementOver HM7 engine ⓘ
manufacturer ArianeGroup ⓘ
Aérospatiale ⓘ
Snecma ⓘ
mixtureRatio 5.0 ⓘ
nozzleExpansionRatio 83 ⓘ
operatingEnvironment vacuum ⓘ
oxidizer liquid oxygen ⓘ
primaryRole geostationary transfer orbit insertion ⓘ
precise orbital injection ⓘ
propellant liquid hydrogen ⓘ
liquid oxygen ⓘ
propellantFeedSystem turbopump-fed ⓘ
restartCapability non-restartable ⓘ
reusability expendable ⓘ
specificImpulseVacuum 444 s ⓘ
status operational ⓘ
successor Vinci engine ⓘ
thrustVacuum 62 kN ⓘ
thrustVectorControl gimballed nozzle ⓘ
use orbital insertion ⓘ
upper stage propulsion ⓘ
usedOnStage Ariane upper stage ⓘ
usedOnVehicle Ariane 1 ⓘ
Ariane 2 ⓘ
Ariane 3 ⓘ
Ariane 4 ⓘ
Ariane 5 ECA ⓘ
usedWithPropellantCombination LOX/LH2 ⓘ

How these facts were elicited

Referenced by (5)

Full triples — surface form annotated when it differs from this entity's canonical label.