Walter HWK 109-509
E79351
The Walter HWK 109-509 was a German World War II-era liquid-fueled rocket engine used to power high-speed interceptor aircraft.
All labels observed (7)
| Label | Occurrences |
|---|---|
| Walter HWK 109-509 canonical | 2 |
| Walter HWK 109 series | 1 |
| Walter HWK 109-509 rocket engine | 1 |
| Walter HWK 109-509A | 1 |
| Walter HWK 109-509A-2 rocket engine | 1 |
| Walter HWK rocket engines | 1 |
| Walter HWK series engines | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T627697 — 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: Walter HWK 109-509 Context triple: [Messerschmitt Me 163, engineModel, Walter HWK 109-509]
-
A.
Daimler-Benz DB 605
The Daimler-Benz DB 605 was a powerful German inverted V12 aircraft engine used extensively in World War II fighters such as later variants of the Bf 109 and Bf 110.
-
B.
Junkers Jumo 211
The Junkers Jumo 211 was a widely used German liquid-cooled V-12 aircraft engine of World War II, powering many Luftwaffe bombers and other combat aircraft.
-
C.
Daimler-Benz DB 601
The Daimler-Benz DB 601 was a German inverted V-12, liquid-cooled aircraft engine widely used in Luftwaffe fighters and bombers during World War II.
-
D.
Messerschmitt Me 262
The Messerschmitt Me 262 was a pioneering German World War II jet fighter and fighter-bomber, notable as the world’s first operational jet-powered combat aircraft.
-
E.
Arado Ar 234
The Arado Ar 234 was a German World War II jet-powered bomber and reconnaissance aircraft, notable as the world’s first operational jet bomber.
- 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: Walter HWK 109-509 Target entity description: The Walter HWK 109-509 was a German World War II-era liquid-fueled rocket engine used to power high-speed interceptor aircraft.
-
A.
Daimler-Benz DB 605
The Daimler-Benz DB 605 was a powerful German inverted V12 aircraft engine used extensively in World War II fighters such as later variants of the Bf 109 and Bf 110.
-
B.
Junkers Jumo 211
The Junkers Jumo 211 was a widely used German liquid-cooled V-12 aircraft engine of World War II, powering many Luftwaffe bombers and other combat aircraft.
-
C.
Daimler-Benz DB 601
The Daimler-Benz DB 601 was a German inverted V-12, liquid-cooled aircraft engine widely used in Luftwaffe fighters and bombers during World War II.
-
D.
Messerschmitt Me 262
The Messerschmitt Me 262 was a pioneering German World War II jet fighter and fighter-bomber, notable as the world’s first operational jet-powered combat aircraft.
-
E.
Arado Ar 234
The Arado Ar 234 was a German World War II jet-powered bomber and reconnaissance aircraft, notable as the world’s first operational jet bomber.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
liquid-fueled rocket engine
ⓘ
rocket propulsion system ⓘ |
| application | aircraft propulsion ⓘ |
| category |
German experimental engine
ⓘ
aircraft rocket engine ⓘ |
| combustionType | monopropellant decomposition plus bipropellant combustion (in some variants) ⓘ |
| control | throttleable in some subvariants ⓘ |
| countryOfOrigin | Germany ⓘ |
| designGoal |
rapid climb to high altitude
ⓘ
very high speed interception ⓘ |
| developedFor | Luftwaffe ⓘ |
| era | 1940s ⓘ |
| family |
Walter rocket engines
ⓘ
linked to:
Walter rocket engine
|
| fuel | C-Stoff ⓘ |
| fuelSystem | separate tanks for T-Stoff and C-Stoff ⓘ |
| historicalSignificance |
enabled the first operational rocket-powered fighter
ⓘ
one of the first operational liquid-fueled rocket engines for aircraft ⓘ |
| introducedAs | standard engine for Me 163 production aircraft ⓘ |
| manufacturer |
Hellmuth Walter Kommanditgesellschaft
ⓘ
Walterwerke ⓘ |
| notableFeature |
dangerous and corrosive propellants requiring special handling
ⓘ
short operating duration suitable for point-defense interceptors ⓘ used highly concentrated hydrogen peroxide as oxidizer ⓘ |
| operatingEnvironment | high-altitude flight ⓘ |
| oxidizer | T-Stoff ⓘ |
| powerCycle | pressure-fed ⓘ |
| propellantType |
bipropellant
ⓘ
liquid fuel ⓘ |
| propulsionMedium | reaction thrust ⓘ |
| role | powerplant for high-speed interceptor aircraft ⓘ |
| safetyIssue |
high toxicity of propellants
ⓘ
risk of explosion and fire ⓘ |
| status | out of service ⓘ |
| thrustClass |
approximately 1,500 kgf
ⓘ
approximately 14.7 kN ⓘ |
| usedAs | main engine for Me 163B ⓘ |
| usedBy | Nazi Germany ⓘ |
| usedDuringConflict | World War II ⓘ |
| usedInAircraft |
Bachem Ba 349 Natter
ⓘ
Heinkel He 162 variants (projected) ⓘ
linked to:
Heinkel He 162
Heinkel He 176 ⓘ Messerschmitt Me 163 Komet ⓘ
linked to:
Messerschmitt Me 163
|
| variantOf |
Walter HWK 109 series
ⓘ
linked to:
Walter HWK 109-509
|
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: Walter HWK 109-509 Description of subject: The Walter HWK 109-509 was a German World War II-era liquid-fueled rocket engine used to power high-speed interceptor aircraft.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
T-Stoff (high-test hydrogen peroxide)
linked to: Walter HWK 109-509
linked to: Walter HWK 109-509
linked to: Walter HWK 109-509
linked to: Walter HWK 109-509
linked to: Walter HWK 109-509
subject linked to:
Toku Ro.2 (KR10) rocket engine
linked to: Walter HWK 109-509