|
gptkbp:instanceOf
|
piston engine
|
|
gptkbp:abbreviation
|
gptkb:SSME
|
|
gptkbp:burnTime
|
520 seconds
|
|
gptkbp:combustionChambers
|
207 bar
|
|
gptkbp:countryOfOrigin
|
gptkb:United_States
|
|
gptkbp:cycle
|
staged combustion
|
|
gptkbp:designation
|
gptkb:Space_Shuttle_Main_Engine
|
|
gptkbp:diameter
|
2.39 m
|
|
gptkbp:engineType
|
liquid-fueled
|
|
gptkbp:firstFlight
|
1981
|
|
gptkbp:gimbalRange
|
10.5 degrees
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
RS-25 rocket engine
|
|
gptkbp:length
|
4.24 m
|
|
gptkbp:manufacturer
|
gptkb:Aerojet_Rocketdyne
|
|
gptkbp:nozzleExpansionRatio
|
77.5
|
|
gptkbp:numberOfEnginesPerShuttle
|
3
|
|
gptkbp:propulsion
|
liquid oxygen
liquid hydrogen
|
|
gptkbp:reusable
|
yes
|
|
gptkbp:specificImpulseVacuum
|
366 seconds
452 seconds
|
|
gptkbp:status
|
in production
|
|
gptkbp:thrustSeaLevel
|
1,669 kN
|
|
gptkbp:thrustVacuum
|
1,859 kN
|
|
gptkbp:usedBy
|
gptkb:NASA
|
|
gptkbp:usedIn
|
gptkb:Space_Launch_System
gptkb:Space_Shuttle
gptkb:Artemis_program
|
|
gptkbp:usedOn
|
gptkb:satellite
gptkb:SLS_core_stage
|
|
gptkbp:weight
|
3,177 kg
|
|
gptkbp:bfsParent
|
gptkb:Rocketdyne
gptkb:Pratt_&_Whitney_Rocketdyne
|
|
gptkbp:bfsLayer
|
6
|