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Rocketdyne J-2

The J-2, commonly known as Rocketdyne J-2, was a liquid-fuel cryogenic rocket engine used on NASA's Saturn IB and Saturn V launch vehicles. Built in the United States by Rocketdyne, the J-2 burned cryogenic liquid hydrogen (LH2) and liquid oxygen (LOX) propellants, with each engine producing 1,033.1 kN (232,250 lbf) of thrust in vacuum. The engine's…

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Application
Upper stage engine
Associated LV
Saturn IB · Saturn V
Burn time
500 seconds
Chamber pressure
5,260 kPa (763 psi)
Country of origin
United States
Cycle
Gas generator

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Rocketdyne J-2

Nodes68
Edges67
Triples31
Avg. degree1.97
Density0.029412
Components1

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Rocketdyne J-2

Top relations

Application · 1
Rocketdyne J-2 → Upper stage engine
Associated LV · 1
Rocketdyne J-2 → Saturn IB · Saturn V
Burn time · 1
Rocketdyne J-2 → 500 seconds
Chamber pressure · 1
Rocketdyne J-2 → 5,260 kPa (763 psi)
Country of origin · 1
Rocketdyne J-2 → United States
Cycle · 1
Rocketdyne J-2 → Gas generator
Designer · 1
Rocketdyne J-2 → Marshall Space Flight Center · Rocketdyne
Diameter · 1
Rocketdyne J-2 → 2.1 m (6.8 ft)
Dry mass · 1
Rocketdyne J-2 → 1,788.1 kg (3,942 lb)
First flight · 1
Rocketdyne J-2 → 26 February 1966 (1966-02-26) (AS-201)

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Important terminology

engine oxidizer thrust fuel chamber j-2 gas stage valve turbine system injector control generator first propellant j-2x rocketdyne manifold turbopump

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Rocketdyne J-2ApplicationUpper stage engine1.00infobox
Rocketdyne J-2Associated LVSaturn IB · Saturn V1.00infobox
Rocketdyne J-2Burn time500 seconds1.00infobox
Rocketdyne J-2Chamber pressure5,260 kPa (763 psi)1.00infobox
Rocketdyne J-2Country of originUnited States1.00infobox
Rocketdyne J-2CycleGas generator1.00infobox
Rocketdyne J-2DesignerMarshall Space Flight Center · Rocketdyne1.00infobox
Rocketdyne J-2Diameter2.1 m (6.8 ft)1.00infobox
Rocketdyne J-2Dry mass1,788.1 kg (3,942 lb)1.00infobox
Rocketdyne J-2First flight26 February 1966 (1966-02-26) (AS-201)1.00infobox
Rocketdyne J-2Last flight15 July 1975 (1975-07-15) (ASTP)1.00infobox
Rocketdyne J-2Length3.4 m (11.1 ft)1.00infobox
Rocketdyne J-2ManufacturerRocketdyne1.00infobox
Rocketdyne J-2Mixture ratio5.5:11.00infobox
Rocketdyne J-2NotesData is for SA-208/SA-504 version.1.00infobox
Rocketdyne J-2Nozzle ratio27.5:11.00infobox
Rocketdyne J-2PropellantLiquid oxygen / Liquid hydrogen1.00infobox
Rocketdyne J-2Specific impulse, sea-level200 s (2.0 km/s)1.00infobox
Rocketdyne J-2Specific impulse, vacuum421 s (4.13 km/s)1.00infobox
Rocketdyne J-2StatusRetired1.00infobox
Rocketdyne J-2SuccessorHG-3 J-2X1.00infobox
Rocketdyne J-2Thrust, sea-level486.2 kN (109,302 lbf)1.00infobox
Rocketdyne J-2Thrust, vacuum1,033.1 kN (232,250 lbf)1.00infobox
Rocketdyne J-2Thrust-to-weight ratio73.18:11.00infobox

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