Touchdown Zone Elevation

From EUROCONTROL ATM Lexicon
Revision as of 11:40, 26 May 2011 by Prisme-ops-admin (Talk | contribs) (Text replace - "{{definition" to "NEW_RELEASE__MASSIVE_UPDATE")


Jump to: navigation, search
Link Semantic Value
Term Touchdown Zone Elevation
Status


Mandatory for


Contexts


Categories
Synonyms

TDZ Elevation

Related entries


Broader term


Narrower term


Definition

  
Touchdown Zone ElevationThe value of the highest elevation of the runway Touchdown Zone (TDZ).

Definition Source

  
Touchdown Zone Elevation* AIFDD

Note

  
Touchdown Zone ElevationThe Touchdown zone is the portion of a runway, beyond the threshold, intended as the first point of contact between landing aircraft and the runway. 1. For fixed wing aircraft the touchdown zone extends from the threshold for a longitudinal distance of 900 metres, except that on runways less than 1800 metres in length, the touchdown zone shall be shortened so that it does not extend beyond the midpoint of the runway. 2. For rotary-wing and vectored-thrust aircraft, the portion of the helipad or runway used for landing.