LE-7A

E410446
liquid-fueled rocket engine

The LE-7A is a Japanese liquid-fueled rocket engine used to power the core stage of the H-IIA family of launch vehicles.

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All labels observed (2)

Label Occurrences
LE-7A canonical 3
LE-7 1

Statements (45)

Predicate Object
instanceOf liquid-fueled rocket engine ⓘ
abbreviationOf Liquid Engine-7A ⓘ
application core stage propulsion ⓘ
belongsToProgram H-IIA program ⓘ
H-IIB launch vehicle ⓘ
surface form: H-IIB program
chamberPressure_MPa about 12 ⓘ
combustionChambers 1 ⓘ
countryOfOrigin Japan ⓘ
designedBy Mitsubishi Heavy Industries ⓘ
developer Japan Aerospace Exploration Agency ⓘ
engineCycle staged combustion cycle ⓘ
engineType main engine ⓘ
firstFlightVehicle H-IIA launch vehicle ⓘ
surface form: H-IIA 202
firstFlightYear 2001 ⓘ
gimbalCapability_deg about 6 ⓘ
launchVehicleFamily H-IIA launch vehicle ⓘ
surface form: H-IIA

H-IIB launch vehicle ⓘ
surface form: H-IIB
manufacturer Mitsubishi Heavy Industries ⓘ
nozzles 1 ⓘ
oxidizer liquid oxygen ⓘ
oxidizerRich true ⓘ
predecessor LE-7A self-linksurface differs ⓘ
surface form: LE-7
propellantFeedSystem turbopump-fed ⓘ
propellantType liquid hydrogen ⓘ
liquid oxygen ⓘ
propulsionType cryogenic ⓘ
reliabilityImprovedFrom LE-7 ⓘ
specificImpulseSeaLevel_s about 360 ⓘ
specificImpulseVacuum_s about 440 ⓘ
stageApplication first stage ⓘ
status operational ⓘ
successor LE-9 ⓘ
throttleCapability limited ⓘ
thrustSeaLevel_kN about 890 ⓘ
thrustVacuum_kN about 1110 ⓘ
usedByAgency Japan Aerospace Exploration Agency ⓘ
surface form: JAXA
usedByCountry Japan ⓘ
usedFor orbital launch ⓘ
satellite deployment ⓘ
spacecraft launch ⓘ
usedForMissionType geostationary transfer orbit missions ⓘ
interplanetary missions ⓘ
sun-synchronous orbit missions ⓘ
usedIn H-IIA launch vehicle ⓘ
H-IIB launch vehicle ⓘ

Referenced by (4)

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

H-IIA launch vehicle → coreStageEngine → LE-7A ⓘ
LE-7A → predecessor → LE-7A self-linksurface differs ⓘ
this entity surface form: LE-7
H-2B → firstStageEngine → LE-7A ⓘ
LE-9 → predecessor → LE-7A ⓘ