Property talk:P1637

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undercarriage
type of aircraft landing gear the item is equipped with

Represents	undercarriage (Q263421)
Data type	Item
Domain	According to this template: aircraft (Q11436) According to statements in the property: aircraft (Q11436) When possible, data should only be stored as statements
Allowed values	Subclasses of undercarriage (Q263421) (note: this should be moved to the property statements)
Example	Cessna 172 Skyhawk (Q244479) → tricycle gear (Q2874353) Maule M-7 (Q3852393) → conventional landing gear (Q2874355)
Tracking: usage	Category:Pages using Wikidata property P1637 (Q108060067)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties By value of property Most statements Fewest statements Most sitelinks Most linked wikis Total of sitelinks on items Most identifiers Fewest identifiers Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Database reports/Constraint violations/P1637 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 267 Main statement 263 98.5% of uses Qualifier 4 1.5% of uses
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[create Create a translatable help page (preferably in English) for this property to be included here]

Type “aircraft (Q11436)”: item must contain property “subclass of (P279)” with classes “aircraft (Q11436)” or their subclasses (defined using subclass of (P279)). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P1637#Type Q11436, SPARQL

Value type “undercarriage (Q263421)”: This property should use items as value that contain property “subclass of (P279)”. On these, the value for subclass of (P279) should be an item that uses subclass of (P279) with value undercarriage (Q263421) (or a subclass thereof). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P1637#Value type Q263421, SPARQL

This property is being used by: pt:Predefinição:Info/Aeronave/Testes, pt:Predefinição:Info/Aeronave/Wikidata ca:Plantilla:Infotaula aeronau Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)