A-4 rocket
E315654
The A-4 rocket, later known as the V-2, was the world’s first long-range guided ballistic missile and a pioneering liquid-fueled rocket that laid the technological foundation for modern spaceflight.
All labels observed (4)
| Label | Occurrences |
|---|---|
| A4 rocket | 4 |
| A-4 rocket canonical | 1 |
| Aggregat 4 rocket | 1 |
| German A-4 rocket | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2911698 — 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: A-4 rocket Context triple: [Wernher von Braun, notableWork, A-4 rocket]
-
A.
A5 rocket
The A5 rocket was an early German experimental rocket developed in the 1930s as a crucial testbed for technologies later used in the V-2 ballistic missile.
-
B.
A3 rocket
The A3 rocket was an early experimental German ballistic missile developed in the 1930s as a precursor to the more advanced V-2 rocket.
-
C.
Redstone rocket
The Redstone rocket was an early American ballistic missile adapted by NASA as a reliable launch vehicle for the first crewed Mercury spaceflights.
-
D.
AJ-60A solid rocket booster
The AJ-60A solid rocket booster is a large strap-on booster used primarily on United Launch Alliance’s Atlas V rocket to provide additional thrust during liftoff.
-
E.
Jupiter-C rocket
The Jupiter-C rocket was an American launch vehicle developed in the 1950s that successfully orbited the United States’ first satellite, Explorer 1, marking a key milestone in the early space race.
- 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: A-4 rocket Target entity description: The A-4 rocket, later known as the V-2, was the world’s first long-range guided ballistic missile and a pioneering liquid-fueled rocket that laid the technological foundation for modern spaceflight.
-
A.
A5 rocket
The A5 rocket was an early German experimental rocket developed in the 1930s as a crucial testbed for technologies later used in the V-2 ballistic missile.
-
B.
A3 rocket
The A3 rocket was an early experimental German ballistic missile developed in the 1930s as a precursor to the more advanced V-2 rocket.
-
C.
Redstone rocket
The Redstone rocket was an early American ballistic missile adapted by NASA as a reliable launch vehicle for the first crewed Mercury spaceflights.
-
D.
AJ-60A solid rocket booster
The AJ-60A solid rocket booster is a large strap-on booster used primarily on United Launch Alliance’s Atlas V rocket to provide additional thrust during liftoff.
-
E.
Jupiter-C rocket
The Jupiter-C rocket was an American launch vehicle developed in the 1950s that successfully orbited the United States’ first satellite, Explorer 1, marking a key milestone in the early space race.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
German military rocket
ⓘ
V-2 rocket ⓘ ballistic missile ⓘ liquid-fueled rocket ⓘ long-range guided missile ⓘ |
| alsoKnownAs | V-2 rocket ⓘ |
| chiefDesigner | Wernher von Braun ⓘ |
| countryOfOrigin | Nazi Germany ⓘ |
| designedBy | Walter Dornberger ⓘ |
| developedAt | Peenemünde Army Research Center ⓘ |
| developedBy | German Army ⓘ |
| diameter | approximately 1.65 m ⓘ |
| engineType | liquid-fuel rocket engine ⓘ |
| firstCombatUseDate | 1944-09-08 ⓘ |
| firstCombatUseLocation | near Paris against London ⓘ |
| firstSuccessfulLaunchDate | 1942-10-03 ⓘ |
| firstSuccessfulLaunchSite | Peenemünde ⓘ |
| fuel | ethanol-water mixture ⓘ |
| guidanceSystem | inertial guidance ⓘ |
| historicalSignificance |
first long-range guided ballistic missile used in war
ⓘ
pioneered technologies for modern spaceflight ⓘ |
| influenced |
Soviet R-1 rocket
ⓘ
linked to:
A3 rocket
U.S. Redstone rocket ⓘ
linked to:
Redstone rocket
early space launch vehicles ⓘ |
| launchMass | approximately 12,500 kg ⓘ |
| length | approximately 14 m ⓘ |
| maximumAltitude | approximately 80–90 km ⓘ |
| museumExhibitAt |
Deutsches Museum
ⓘ
Imperial War Museum ⓘ
linked to:
Imperial War Museums
National Air and Space Museum ⓘ |
| notableTargetCity |
Antwerp
ⓘ
London ⓘ
linked to:
London, England
|
| numberBuilt | over 3000 ⓘ |
| operatedBy | German Army V-2 units ⓘ |
| oxidizer | liquid oxygen ⓘ |
| primaryTargets |
Belgium
ⓘ
United Kingdom ⓘ |
| producedFrom | 1944 ⓘ |
| producedUntil | 1945 ⓘ |
| propellantType | liquid fuel ⓘ |
| range | approximately 320 km ⓘ |
| status | retired ⓘ |
| thrust | approximately 25 metric tons ⓘ |
| usedBy |
German Army
ⓘ
Wehrmacht ⓘ |
| usedInConflict | World War II ⓘ |
| warheadMass | approximately 1000 kg ⓘ |
| warheadType | high-explosive ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: A-4 rocket Description of subject: The A-4 rocket, later known as the V-2, was the world’s first long-range guided ballistic missile and a pioneering liquid-fueled rocket that laid the technological foundation for modern spaceflight.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: A-4 rocket
linked to: A-4 rocket
subject linked to:
Vergeltungswaffe 2 (Vengeance Weapon 2)
linked to: A-4 rocket
linked to: A-4 rocket