Fan Song fire-control radar
E158389
The Fan Song fire-control radar is a Soviet-era tracking and guidance radar system used to direct S-75 Dvina (SA-2 Guideline) surface-to-air missiles against aerial targets.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Fan Song fire-control radar canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T1371778 — 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: Fan Song fire-control radar Context triple: [S-75 Dvina, radarAssociation, Fan Song fire-control radar]
-
A.
Aegis radar components
Aegis radar components are advanced naval radar and combat system elements designed to detect, track, and guide weapons against multiple airborne and missile threats as part of the Aegis Combat System.
-
B.
Freya radar
Freya radar was an early German ground-based radar system used extensively for air defense during World War II.
-
C.
AN/MPQ-53 radar
The AN/MPQ-53 is a multifunction, phased-array fire control radar used to detect, track, and guide interceptors against aircraft and missile threats in the Patriot air defense system.
-
D.
APY-10 multi-mission surface search radar
The APY-10 multi-mission surface search radar is an advanced maritime surveillance and targeting radar system used on platforms like the Boeing P-8 Poseidon for detecting, tracking, and classifying surface and subsurface contacts in all weather conditions.
-
E.
AN/TPY-2 radar
The AN/TPY-2 radar is a high-resolution, X-band, phased-array missile defense radar used for detecting, tracking, and discriminating ballistic missile threats.
- 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: Fan Song fire-control radar Target entity description: The Fan Song fire-control radar is a Soviet-era tracking and guidance radar system used to direct S-75 Dvina (SA-2 Guideline) surface-to-air missiles against aerial targets.
-
A.
Aegis radar components
Aegis radar components are advanced naval radar and combat system elements designed to detect, track, and guide weapons against multiple airborne and missile threats as part of the Aegis Combat System.
-
B.
Freya radar
Freya radar was an early German ground-based radar system used extensively for air defense during World War II.
-
C.
AN/MPQ-53 radar
The AN/MPQ-53 is a multifunction, phased-array fire control radar used to detect, track, and guide interceptors against aircraft and missile threats in the Patriot air defense system.
-
D.
APY-10 multi-mission surface search radar
The APY-10 multi-mission surface search radar is an advanced maritime surveillance and targeting radar system used on platforms like the Boeing P-8 Poseidon for detecting, tracking, and classifying surface and subsurface contacts in all weather conditions.
-
E.
AN/TPY-2 radar
The AN/TPY-2 radar is a high-resolution, X-band, phased-array missile defense radar used for detecting, tracking, and discriminating ballistic missile threats.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
fire-control radar
ⓘ
military radar system ⓘ |
| associatedMissileSystemNATOName | SA-2 Guideline ⓘ |
| associatedMissileSystemSovietDesignation |
S-75 Dvina (SA-2 Guideline) missile
ⓘ
surface form:
S-75 Dvina
|
| associatedWith |
Spoon Rest early warning radar
ⓘ
surface form:
P-12 Spoon Rest radar
Spoon Rest early warning radar ⓘ
surface form:
P-18 Spoon Rest D radar
|
| countryOfOrigin | Soviet Union ⓘ |
| deployment |
fixed site
ⓘ
semi-mobile installation ⓘ |
| developedBy | Soviet defense industry ⓘ |
| era | Cold War ⓘ |
| frequencyBand |
C-band
ⓘ
E-band ⓘ |
| function |
missile guidance
ⓘ
target illumination ⓘ target tracking ⓘ |
| generation | first-generation Soviet SAM fire-control radar ⓘ |
| guidanceType | command guidance ⓘ |
| introducedInPeriod | late 1950s ⓘ |
| NATOReportingName | Fan Song ⓘ |
| notableEvent | used in shootdown of U-2 spy plane piloted by Francis Gary Powers in 1960 ⓘ |
| operatedBy | ground-based air defense units ⓘ |
| partOf |
S-75 Dvina (SA-2 Guideline) missile
ⓘ
surface form:
S-75 Dvina surface-to-air missile system
S-75 Dvina (SA-2 Guideline) missile ⓘ
surface form:
SA-2 Guideline surface-to-air missile system
|
| primaryUser |
Soviet Air Defense Forces
ⓘ
surface form:
Soviet Air Defence Forces
|
| radarGuidanceMode | track-while-command ⓘ |
| replacedBy | newer Soviet SAM fire-control radars ⓘ |
| role | fire-control for SA-2 Guideline ⓘ |
| status | largely obsolete ⓘ |
| targetType |
high-altitude aircraft
ⓘ
medium-altitude aircraft ⓘ |
| type |
continuous-wave radar
ⓘ
tracking radar ⓘ |
| usedBy |
Egypt
ⓘ
North Korea ⓘ Soviet Union ⓘ Syria ⓘ Viet Nam ⓘ
surface form:
Vietnam
Warsaw Pact ⓘ
surface form:
Warsaw Pact countries
|
| usedFor |
guiding surface-to-air missiles
ⓘ
tracking aerial targets ⓘ |
| usedInConflict |
Six-Day War
ⓘ
Vietnam War ⓘ War of Attrition ⓘ Yom Kippur War ⓘ |
| usedWith |
S-75 Dvina (SA-2 Guideline) missile
ⓘ
surface form:
S-75 Dvina launcher
S-75 Dvina (SA-2 Guideline) missile ⓘ
surface form:
S-75M Volga variant
V-750 missile ⓘ |
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: Fan Song fire-control radar Description of subject: The Fan Song fire-control radar is a Soviet-era tracking and guidance radar system used to direct S-75 Dvina (SA-2 Guideline) surface-to-air missiles against aerial targets.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
S-75 Dvina