J-2

E130634

liquid-fueled rocket engine rocket engine

The J-2 was a liquid-fueled rocket engine used on NASA’s Saturn rockets to power upper stages during the Apollo and early Skylab missions.

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All labels observed (4)

Label	Occurrences
J-2 canonical	4
J-2X	2
J-2 rocket engine	1
J-2S	1

Statements (45)

Predicate	Object
instanceOf	liquid-fueled rocket engine ⓘ rocket engine ⓘ
bellNozzle	yes ⓘ
chamberPressure	approximately 5.0 MPa ⓘ
countryOfOrigin	United States of America ⓘ surface form: United States
cycleType	gas-generator cycle ⓘ
developedFor	Saturn rocket family ⓘ surface form: Saturn launch vehicle family
firstFlight	1966 ⓘ
fuel	liquid hydrogen ⓘ
gimbalCapability	gimbaled for thrust vector control ⓘ
historicalSignificance	enabled translunar injection for Apollo missions ⓘ one of the first large LH2/LOX engines in operational service ⓘ
manufacturer	Aerojet Rocketdyne ⓘ surface form: Rocketdyne
numberOfEnginesOnSII	5 ⓘ
numberOfEnginesOnSIVB	1 ⓘ
operatedIn	near-vacuum conditions ⓘ
oxidizer	liquid oxygen ⓘ
propellantType	liquid hydrogen ⓘ liquid oxygen ⓘ
restartCapability	restartable in flight ⓘ
specificImpulseVacuum	approximately 421 s ⓘ
status	retired ⓘ
successor	J-2 self-linksurface differs ⓘ surface form: J-2S J-2 self-linksurface differs ⓘ surface form: J-2X
thrustVacuum	approximately 1,033 kN ⓘ approximately 232,000 lbf ⓘ
usedBy	NASA ⓘ
usedDuringMission	Apollo 11 ⓘ Apollo 17 ⓘ Apollo 6 ⓘ Apollo 8 ⓘ Skylab 1 ⓘ
usedFor	Apollo program ⓘ Saturn V S-II second stage ⓘ surface form: Saturn upper stages Skylab program ⓘ
usedForFunction	second stage propulsion ⓘ third stage propulsion ⓘ
usedInConfiguration	cluster of five engines on Saturn V S-II ⓘ single engine on S-IVB stage ⓘ
usedOn	Saturn I ⓘ Saturn IB ⓘ Saturn V ⓘ
usedOnStage	S-IVB ⓘ surface form: Saturn IB S-IVB stage Saturn V S-II second stage ⓘ surface form: Saturn V S-II stage S-IVB ⓘ surface form: Saturn V S-IVB stage

Referenced by (8)

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

Saturn V → secondStageEngineType → J-2 ⓘ

Saturn V → thirdStageEngineType → J-2 ⓘ

S-IVB → rocketEngine → J-2 ⓘ

J-2 → successor → J-2 self-linksurface differs ⓘ

this entity surface form: J-2S

J-2 → successor → J-2 self-linksurface differs ⓘ

this entity surface form: J-2X

Saturn V S-II second stage → engineType → J-2 ⓘ

this entity surface form: J-2 rocket engine

Saturn IB → secondStageEngineType → J-2 ⓘ

Ares V (cancelled) → upperStageEngineType → J-2 ⓘ

subject surface form: Ares V

this entity surface form: J-2X