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- Sinônimos
- THR
- Definição1
- The beginning of that portion of the runway usable for landing. (ICAO) On instrument runways, it is indicated by long stripes followed by the runway designation marking. The number of stripes is dependent on the width of the runway.
- Fonte1
- KUMAR, Bharat (ed.). An illustrated dictionary of aviation. New York: McGraw-Hill, c2005. 752 p.
- Fonte2
- INTERNATIONAL CIVIL AVIATION ORGANIZATION. International civil aviation vocabulary. 3rd ed. Montreal, 2007. (Doc. 9713).
- Fonte3
- INTERNATIONAL CIVIL AVIATION ORGANIZATION. Annex 14 to the Convention on International Civil Aviation. Aerodromes. Volume I: aerodrome design and operation. 6th ed. Montreal, 2013.
- Nota adicional1
- Acronym in English: THR.
- Contexto
- A threshold should normally be located at the extremity of a runway unless operational considerations justify the choice of another location.
- Subárea
- Airport Infrastructure
- Related Term
- landing threshold
- landing threshold point
- maximum threshold speed
- runway threshold
- threshold elevation
- threshold speed
- Narrower Term
- displaced threshold
- Spanish
- umbral