RS-25 engines

GPTKB entity

Statements (97)
Predicate Object
gptkbp:instance_of gptkb:Team_Rocket
gptkbp:aircraft_operated gptkb:Space_Launch_System
gptkbp:average_temperature -253 to 650 ° C
-423° F to 3,000° F
gptkbp:check_in_time 8.5 minutes
gptkbp:combustion_chamber_material Inconel
gptkbp:control_system digital
gptkbp:cooling_system liquid hydrogen
regenerative cooling
gptkbp:debut gptkb:1975
gptkbp:developed_by gptkb:NASA
gptkbp:development_cost $1 billion
gptkbp:durability gptkb:true
gptkbp:engine gptkb:RS-25_E
gptkb:advanced_technology
gptkb:international_collaboration
gptkb:Rocketdyne
gptkb:Space_Shuttle
ongoing
technological advancements
rich history
ongoing research
vertical
closed cycle
engineering challenges
ongoing development
future missions
various space missions
over 30 years of service
crew and cargo missions
vertical assembly
controlled shutdown
significant in space exploration
dual start
support from aerospace community
gptkbp:engine_configuration vertical
detailed
staged combustion cycle
clustered
detailed specifications
four engines on the orbiter
gptkbp:engine_future_use gptkb:future_space_missions
gptkbp:engine_power high performance
high reliability
high efficiency
reliable
proven
gptkbp:engine_serial_number gptkb:RS-25_D
gptkbp:engine_type liquid bipropellant
gptkbp:environmental_impact low
gptkbp:exhaust_system aerospike
gptkbp:first_flight gptkb:1980
gptkb:1981
gptkbp:fuel_capacity 4.6 m
5.5 ft
3.7 m
14.5 ft
gptkbp:fuel_economy high
gptkbp:fuel_type liquid hydrogen and liquid oxygen
cryogenic
gptkbp:has_programs gptkb:NASA's_Space_Shuttle_program
https://www.w3.org/2000/01/rdf-schema#label RS-25 engines
gptkbp:ignition_system up to 100
hypergolic
gptkbp:impact significant impact on space exploration
gptkbp:is_tested_for gptkb:Stennis_Space_Center
extensive
extensive testing
gptkbp:launch_site gptkb:Kennedy_Space_Center
gptkbp:maintenance periodic maintenance
gptkbp:manufacturer gptkb:Rocketdyne
gptkbp:mission gptkb:Artemis_I
gptkb:Artemis_program
gptkbp:nozzle_expansion_ratio 60:1
gptkbp:number_of_engines four
gptkbp:number_of_rooms 3,000 psi
20.5 MPa
gptkbp:operates_in gptkb:2011
gptkbp:operational_period closed cycle
staged combustion
gptkbp:produces over 200
135 engines
gptkbp:propulsion yes
high thrust-to-weight ratio
gimbaled
190,000 lbf
1900 k N
gptkbp:specific_impulse 452 seconds
gptkbp:successor gptkb:RS-25_E
gptkbp:system gptkb:International_Space_Station
gptkbp:used_in gptkb:Space_Shuttle
gptkbp:used_in_rocket gptkb:Space_Launch_System
gptkbp:weight 3,000 kg
3,000 lb
gptkbp:bfsParent gptkb:Space_Launch_System
gptkb:Artemis_I_rocket
gptkbp:bfsLayer 4