PAPI
E764313
abbreviated precision approach path indicator
airfield visual aid
visual glide slope indicator system
PAPI is a visual glide slope indicator system used at airports to help pilots maintain the correct approach angle during landing.
All labels observed (1)
| Label | Occurrences |
|---|---|
| PAPI canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8887900 — 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: PAPI Context triple: [runway system of Kansai International Airport, hasNavigationAid, PAPI]
-
A.
PAP
PAP is the commonly used abbreviation for China’s paramilitary People’s Armed Police force responsible for internal security and law enforcement support.
-
B.
PAP
PAP is the legislative body of the African Union that aims to promote democracy, human rights, and integration across African states.
-
C.
PAP
PAP is the IATA airport code for Toussaint Louverture International Airport, the main international gateway serving Port-au-Prince, Haiti.
-
D.
PIP
PIP is a UK welfare benefit that helps disabled people or those with long-term health conditions cover the extra costs of daily living and mobility.
-
E.
PIP
PIP is a Puerto Rican political party that advocates for the island’s full independence from the United States.
- 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: PAPI Target entity description: PAPI is a visual glide slope indicator system used at airports to help pilots maintain the correct approach angle during landing.
-
A.
PAP
PAP is the commonly used abbreviation for China’s paramilitary People’s Armed Police force responsible for internal security and law enforcement support.
-
B.
PAP
PAP is the legislative body of the African Union that aims to promote democracy, human rights, and integration across African states.
-
C.
PAP
PAP is the IATA airport code for Toussaint Louverture International Airport, the main international gateway serving Port-au-Prince, Haiti.
-
D.
PIP
PIP is a UK welfare benefit that helps disabled people or those with long-term health conditions cover the extra costs of daily living and mobility.
-
E.
PIP
PIP is a Puerto Rican political party that advocates for the island’s full independence from the United States.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
abbreviated precision approach path indicator
ⓘ
airfield visual aid ⓘ visual glide slope indicator system ⓘ |
| abbreviationOf |
Precision Approach Path Indicator
ⓘ
linked to:
PAPI (Precision Approach Path Indicator)
|
| category |
airfield lighting system
ⓘ
navigation aid ⓘ |
| consistsOf | four light units arranged in a horizontal row ⓘ |
| fullName |
Precision Approach Path Indicator
ⓘ
linked to:
PAPI (Precision Approach Path Indicator)
|
| glidePathAngle | typically around 3 degrees ⓘ |
| hasAdvantage | provides more precise glide path information than VASI ⓘ |
| hasComponent | light unit ⓘ |
| hasFewerLightUnitsThan | PAPI ⓘ |
| hasLightColor |
red
ⓘ
white ⓘ |
| hasNumberOfLightUnits | 4 ⓘ |
| hasStandard | ICAO Annex 14 ⓘ |
| hasType | APAPI ⓘ |
| indicates |
on-slope condition with two white and two red lights
ⓘ
significantly high condition with four white lights ⓘ significantly low condition with four red lights ⓘ too high condition with more white than red lights ⓘ too low condition with more red than white lights ⓘ |
| locatedAt | side of the runway ⓘ |
| operatedBy | airport operator ⓘ |
| operationalStatus | can be turned on or off by air traffic control ⓘ |
| optimizedFor |
daytime visibility
ⓘ
nighttime visibility ⓘ |
| provides | visual approach slope information ⓘ |
| regulatedBy | International Civil Aviation Organization ⓘ |
| replaced | VASI at many airports ⓘ |
| requires |
electrical power supply
ⓘ
proper calibration of light unit angles ⓘ |
| safetyRole |
helping prevent undershoot and overshoot landings
ⓘ
reducing risk of controlled flight into terrain on approach ⓘ |
| similarTo | VASI ⓘ |
| supports |
non-precision approaches
ⓘ
visual flight rules operations ⓘ |
| typicallyLocated |
about 300 meters beyond the runway threshold
ⓘ
left side of the runway ⓘ |
| usedAt |
aerodromes
ⓘ
airports ⓘ |
| usedBy |
commercial pilots
ⓘ
general aviation pilots ⓘ military pilots ⓘ |
| usedFor |
helping pilots maintain correct approach angle during landing
ⓘ
indicating whether an aircraft is above or below the ideal glide path ⓘ providing visual glide path guidance to pilots ⓘ |
| usedIn | aircraft landing phase ⓘ |
| visibleTo | approaching aircraft ⓘ |
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: PAPI Description of subject: PAPI is a visual glide slope indicator system used at airports to help pilots maintain the correct approach angle during landing.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.