Starhopper

E58703

prototype rocket subscale Starship prototype test vehicle

Starhopper is SpaceX’s early prototype test vehicle used to validate key technologies for the Starship launch system, particularly its Raptor engines and vertical takeoff and landing capabilities.

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All labels observed (3)

Label	Occurrences
Starhopper canonical	2
Big Falcon Rocket	1
Starhopper test article	1

How this entity was disambiguated

This entity first appeared as the object of triple T464446 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Starhopper
Context triple: [Starship launch system, technologyDemonstrator, Starhopper]

A. The Spaceship Company
The Spaceship Company is an aerospace manufacturing firm co-founded by Virgin Galactic to build and test suborbital spaceplanes and related spacecraft.
B. Titan IIIE
Titan IIIE was a U.S. expendable launch vehicle variant of the Titan III family, equipped with a Centaur upper stage and used in the 1970s to send deep-space probes such as Voyager 1 on interplanetary trajectories.
C. Cassin
Cassin is a French surname most notably borne by René Cassin, a Nobel Peace Prize–winning jurist and co-author of the Universal Declaration of Human Rights.
D. Swoop
Swoop is the Philadelphia Eagles’ official bald eagle mascot, known for entertaining fans at games and team events.
E. Mission: SPACE
Mission: SPACE is a spaceflight-simulation attraction at EPCOT that immerses guests in a realistic, high-intensity mission to Mars experience.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Starhopper
Target entity description: Starhopper is SpaceX’s early prototype test vehicle used to validate key technologies for the Starship launch system, particularly its Raptor engines and vertical takeoff and landing capabilities.

A. The Spaceship Company
The Spaceship Company is an aerospace manufacturing firm co-founded by Virgin Galactic to build and test suborbital spaceplanes and related spacecraft.
B. Titan IIIE
Titan IIIE was a U.S. expendable launch vehicle variant of the Titan III family, equipped with a Centaur upper stage and used in the 1970s to send deep-space probes such as Voyager 1 on interplanetary trajectories.
C. Cassin
Cassin is a French surname most notably borne by René Cassin, a Nobel Peace Prize–winning jurist and co-author of the Universal Declaration of Human Rights.
D. Swoop
Swoop is the Philadelphia Eagles’ official bald eagle mascot, known for entertaining fans at games and team events.
E. Mission: SPACE
Mission: SPACE is a spaceflight-simulation attraction at EPCOT that immerses guests in a realistic, high-intensity mission to Mars experience.
F. None of above. chosen

Statements (48)

Predicate	Object
instanceOf	prototype rocket ⓘ subscale Starship prototype ⓘ test vehicle ⓘ
associatedWith	Elon Musk ⓘ
capabilityTested	attitude control during low-altitude flight ⓘ autonomous landing ⓘ engine start and shutdown sequences ⓘ thrust vector control ⓘ
countryOfOrigin	United States ⓘ linked to: United States of America
designFeature	cylindrical tank section with nose cap ⓘ landing legs ⓘ single-engine configuration ⓘ stainless steel structure ⓘ
engineType	methane-fueled full-flow staged combustion engine ⓘ
followedBy	Starship Mk1 prototype ⓘ linked to: Starship launch system Starship SN-series prototypes ⓘ linked to: Starship launch system
fuelType	methalox ⓘ
launchSite	Boca Chica, Texas ⓘ SpaceX Boca Chica launch site ⓘ linked to: Starbase, Boca Chica, Texas Starbase, Texas ⓘ linked to: Boca Chica, Texas
locationAfterRetirement	SpaceX Boca Chica facility ⓘ linked to: Starbase, Boca Chica, Texas
manufacturer	SpaceX ⓘ
notableAspect	first flying prototype of the Starship architecture ⓘ
operator	SpaceX ⓘ
organization	foundedBy Elon Musk ⓘ linked to: Elon Musk
partOf	Starship launch system development program ⓘ linked to: Starship launch system
precededBy	Falcon 9 reusable first stage tests ⓘ linked to: Falcon 9 rocket Grasshopper ⓘ
primaryPurpose	Raptor engine testbed ⓘ technology demonstrator ⓘ vertical takeoff and landing validation ⓘ
program	SpaceX Starship development program ⓘ linked to: Starship launch system
propellant	liquid methane ⓘ liquid oxygen ⓘ
propulsion	Raptor engine ⓘ
relatedTo	SpaceX Starship ⓘ linked to: Super Heavy booster SpaceX Super Heavy booster ⓘ linked to: Super Heavy booster
roleInProgram	early Starship development prototype ⓘ
status	retired test article ⓘ
testCampaign	hop tests up to approximately 150 meters altitude ⓘ
testedTechnology	Raptor engine integration with vehicle ⓘ flight software for Starship-class vehicles ⓘ ground support systems for methane-oxygen vehicles ⓘ
usedFor	engine gimbal testing ⓘ guidance and control validation ⓘ hover tests ⓘ low-altitude flight tests ⓘ throttle control testing ⓘ

How these facts were elicited

Referenced by (4)

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

Starship launch system → technologyDemonstrator → Starhopper ⓘ

BFR → alsoKnownAs → Big Falcon Rocket ⓘ

linked to: Starhopper

Suborbital Pad A → associatedVehicle → Starhopper ⓘ

Suborbital Pad A → supportsVehicleType → Starhopper test article ⓘ