TACAN
E427216
TACAN is a military tactical air navigation system that provides aircraft with precise bearing and distance information to a ground station.
All labels observed (5)
| Label | Occurrences |
|---|---|
| TACAN canonical | 6 |
| Tactical Air Navigation | 2 |
| TACAN (Thumrait) | 1 |
| TACAN NCA | 1 |
| VORTAC LSV | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4271314 — 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: TACAN Context triple: [White Sands Space Harbor, hasNavigationAid, TACAN]
-
A.
LORAN
LORAN is a long-range terrestrial radio navigation system originally developed for maritime and aviation positioning before the advent of satellite-based GPS.
-
B.
SAN VORTAC
SAN VORTAC is a ground-based radio navigation facility (combining VOR and TACAN) serving the San Diego International Airport area for en-route and approach guidance.
-
C.
Knickebein radio navigation system
The Knickebein radio navigation system was a World War II German Luftwaffe beam-guidance technology used to direct bombers accurately to their targets at night and in poor visibility.
-
D.
ATC
ATC (Anatomical Therapeutic Chemical Classification System) is a widely used international system for classifying drugs according to the organ or system they act on and their therapeutic, pharmacological, and chemical properties.
-
E.
ATC
The ATC (Agreement on Textiles and Clothing) was a World Trade Organization accord that governed the gradual integration of the textiles and clothing sector into normal WTO rules, phasing out quotas on textile and apparel trade.
- 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: TACAN Target entity description: TACAN is a military tactical air navigation system that provides aircraft with precise bearing and distance information to a ground station.
-
A.
LORAN
LORAN is a long-range terrestrial radio navigation system originally developed for maritime and aviation positioning before the advent of satellite-based GPS.
-
B.
SAN VORTAC
SAN VORTAC is a ground-based radio navigation facility (combining VOR and TACAN) serving the San Diego International Airport area for en-route and approach guidance.
-
C.
Knickebein radio navigation system
The Knickebein radio navigation system was a World War II German Luftwaffe beam-guidance technology used to direct bombers accurately to their targets at night and in poor visibility.
-
D.
ATC
ATC (Anatomical Therapeutic Chemical Classification System) is a widely used international system for classifying drugs according to the organ or system they act on and their therapeutic, pharmacological, and chemical properties.
-
E.
ATC
The ATC (Agreement on Textiles and Clothing) was a World Trade Organization accord that governed the gradual integration of the textiles and clothing sector into normal WTO rules, phasing out quotas on textile and apparel trade.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
military navigation aid
ⓘ
radio navigation system ⓘ tactical air navigation system ⓘ |
| abbreviationOf |
Tactical Air Navigation
ⓘ
linked to:
TACAN
|
| accuracy | higher azimuth accuracy than VOR ⓘ |
| canBeCollocatedWith | VOR ⓘ |
| civilEquivalent |
VOR/DME
ⓘ
VORTAC ⓘ |
| coordinateSystem |
bearing relative to station
ⓘ
slant range to station ⓘ |
| fullName |
Tactical Air Navigation
ⓘ
linked to:
TACAN
|
| introducedBy |
United States military
ⓘ
linked to:
United States Armed Forces
|
| introducedEra | 1950s ⓘ |
| isBasedOn | DME principles ⓘ |
| isCompatibleWith | civil DME ⓘ |
| isInstalledOn |
aircraft carriers
ⓘ
ground mobile stations ⓘ military aircraft ⓘ military airfields ⓘ |
| isMoreAccurateThan | VOR ⓘ |
| isStandardizedBy |
ICAO provisions for DME compatibility
ⓘ
NATO STANAGs ⓘ
linked to:
NATO Standardization Agreements
|
| isUsedBy |
NATO forces
ⓘ
linked to:
Armed Forces of NATO member states
United States military ⓘ
linked to:
United States Armed Forces
naval aviation ⓘ |
| operatesInBand | 960–1215 MHz ⓘ |
| primaryUser | military aircraft ⓘ |
| provides |
bearing information
ⓘ
distance information ⓘ slant range information ⓘ |
| rangeType | line‑of‑sight ⓘ |
| relatedConcept |
DME
ⓘ
VOR ⓘ VOR/DME ⓘ VORTAC ⓘ |
| requires |
ground TACAN transponder
ⓘ
onboard TACAN receiver ⓘ |
| supports |
instrument flight rules operations
ⓘ
non‑precision approaches ⓘ |
| supportsMode |
air‑to‑air
ⓘ
air‑to‑ground ⓘ |
| typicalUse |
air‑to‑air navigation
ⓘ
approach navigation ⓘ en‑route navigation ⓘ holding procedures ⓘ |
| uses |
UHF radio frequencies
ⓘ
azimuth encoding ⓘ distance measuring equipment ⓘ pulse modulation ⓘ |
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: TACAN Description of subject: TACAN is a military tactical air navigation system that provides aircraft with precise bearing and distance information to a ground station.
Referenced by (11)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
White Sands Space Harbor (former Shuttle landing site)
linked to: TACAN
subject linked to:
EBFS
linked to: TACAN
linked to: TACAN
linked to: TACAN