Martin-Baker MB 3
E231918
The Martin-Baker MB 3 was a British prototype fighter aircraft of the early Second World War era, notable as one of the company’s experimental designs that informed later developments.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Martin-Baker MB 3 canonical | 1 |
| Martin-Baker MB 3 (prototype) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2045323 — 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: Martin-Baker MB 3 Context triple: [Martin-Baker MB 5, developedFrom, Martin-Baker MB 3]
-
A.
Martin-Baker MB 5
The Martin-Baker MB 5 was a late-World War II British prototype fighter aircraft renowned for its advanced design, excellent performance, and exceptional handling, though it never entered production.
-
B.
Bristol Hercules
The Bristol Hercules was a British air-cooled, sleeve-valve radial aircraft engine widely used in World War II bombers and transport aircraft.
-
C.
Hawker P.1127
The Hawker P.1127 was an experimental British vertical/short takeoff and landing (V/STOL) jet aircraft that led directly to the development of the Harrier jump jet.
-
D.
Airspeed Horsa glider
The Airspeed Horsa glider was a large British World War II troop-carrying and assault glider used extensively by airborne forces in major operations such as the invasions of Sicily and Normandy.
-
E.
Airspeed Ambassador
The Airspeed Ambassador was a British twin-engined, medium-range airliner of the late 1940s and 1950s, best remembered for its involvement in the 1958 Munich air disaster.
- 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: Martin-Baker MB 3 Target entity description: The Martin-Baker MB 3 was a British prototype fighter aircraft of the early Second World War era, notable as one of the company’s experimental designs that informed later developments.
-
A.
Martin-Baker MB 5
The Martin-Baker MB 5 was a late-World War II British prototype fighter aircraft renowned for its advanced design, excellent performance, and exceptional handling, though it never entered production.
-
B.
Bristol Hercules
The Bristol Hercules was a British air-cooled, sleeve-valve radial aircraft engine widely used in World War II bombers and transport aircraft.
-
C.
Hawker P.1127
The Hawker P.1127 was an experimental British vertical/short takeoff and landing (V/STOL) jet aircraft that led directly to the development of the Harrier jump jet.
-
D.
Airspeed Horsa glider
The Airspeed Horsa glider was a large British World War II troop-carrying and assault glider used extensively by airborne forces in major operations such as the invasions of Sicily and Normandy.
-
E.
Airspeed Ambassador
The Airspeed Ambassador was a British twin-engined, medium-range airliner of the late 1940s and 1950s, best remembered for its involvement in the 1958 Munich air disaster.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
British military aircraft
ⓘ
prototype fighter aircraft ⓘ single-seat fighter ⓘ |
| aircraftType | low-wing monoplane ⓘ |
| armamentLocation | wing-mounted cannon ⓘ |
| armamentPlanned | 6 × 20 mm Hispano cannon ⓘ |
| armour | pilot protection armour fitted ⓘ |
| category | World War II British fighter aircraft prototypes ⓘ |
| cockpitPosition | enclosed cockpit, mid-fuselage ⓘ |
| construction | all-metal structure ⓘ |
| countryOfOrigin | United Kingdom ⓘ |
| crashCause | engine failure on takeoff ⓘ |
| crashDate | 1942-09-12 ⓘ |
| crashLocation | near Chalgrove, Oxfordshire ⓘ |
| crew | 1 ⓘ |
| designedBy |
James Martin
ⓘ
Valentine Baker ⓘ |
| developmentFrom | Martin-Baker MB 2 ⓘ |
| engineConfiguration | liquid-cooled H-24 ⓘ |
| enginePower | approximately 2200 hp ⓘ |
| era |
World War II
ⓘ
surface form:
Second World War
|
| fate | destroyed in crash ⓘ |
| firstFlightDate | 1942-08-31 ⓘ |
| firstFlightLocation | Wing, Buckinghamshire ⓘ |
| firstPrototypeSerialNumber | R2492 ⓘ |
| fuelSystem | self-sealing fuel tanks ⓘ |
| historicalSignificance | contributed design experience leading to Martin-Baker MB 5 ⓘ |
| informedDevelopmentOf | Martin-Baker MB 5 ⓘ |
| length | approximately 32 ft 0 in ⓘ |
| manufacturer |
Martin-Baker Aircraft Company
ⓘ
surface form:
Martin-Baker
|
| maximumSpeed | approximately 415 mph at altitude ⓘ |
| notableFeature |
designed for ease of manufacture and maintenance
ⓘ
heavy cannon armament for its time ⓘ |
| numberBuilt | 1 ⓘ |
| operatorIntended | Royal Air Force ⓘ |
| pilotAtFatalCrash | Valentine Baker ⓘ |
| powerplant |
Napier aircraft engines
ⓘ
surface form:
Napier Sabre IIA engine
|
| programmeStart | early 1940s ⓘ |
| programOutcome | development abandoned after crash ⓘ |
| propeller | four-bladed constant-speed propeller ⓘ |
| role |
fighter
ⓘ
interceptor ⓘ |
| serviceCeiling | over 30,000 ft ⓘ |
| status | prototype only ⓘ |
| tailConfiguration | conventional tail unit ⓘ |
| undercarriage | retractable tailwheel landing gear ⓘ |
| wingspan | approximately 35 ft 0 in ⓘ |
| wingType | straight, relatively thick wing ⓘ |
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: Martin-Baker MB 3 Description of subject: The Martin-Baker MB 3 was a British prototype fighter aircraft of the early Second World War era, notable as one of the company’s experimental designs that informed later developments.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Martin-Baker MB 3 (prototype)