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touchdown zone
- Definição1
- The portion of a runway, beyond the threshold, where it is intended landing aeroplanes first contact the runway.
- Fonte1
- INTERNATIONAL CIVIL AVIATION ORGANIZATION. Annex 3 to the Convention on International Civil Aviation. Meteorological Service for International Air Navigation: parts I and II. 18th ed. Montreal, 2013.
- Definição2
- The first 3,000 feet of the runway beginning at the threshold. The area is used for determination of Touchdown Zone Elevation in the development of straight-in landing minimums for instrument approaches.
- Fonte2
- FEDERAL AVIATION ADMINISTRATION. Pilot/controller glossary (P/CG). 2014. Disponível em: https://www.faa.gov/air_traffic/publications/atpubs/pcg/index.htm. Acesso em: 10 jun. 2014.
- Nota adicional1
- Acronym in English: TDZ.
- Contexto
- When local routine and special reports are used for departing aircraft, the visibility observations for these reports should be representative of conditions along the runway; when local routine and special reports are used for arriving aircraft, the visibility observations for these reports should be representative of the touchdown zone of the runway.
- Subárea1
- Phase of Flight
- Related Term
- touchdown
- Português
- zona de toque