Print on 01 October 2016, at 02:29.
Touchdown Zone Elevation
Definition
The value of the highest elevation of the runway Touchdown
Zone (TDZ).
Link
Semantic Value
Term
Touchdown Zone Elevation
Status
Mandatory for
Definition Source
Contexts
▪ AIFDD
Categories
Note
Synonyms
TDZ Elevation
Related
entries
The Touchdown zone is the portion of a runway, beyond the
threshold, intended as the first point of contact between landing Broader term
aircraft and the runway. 1. For fixed wing aircraft the
Narrower term
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.
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This page was last modified on 24 September 2016, at 00:54.
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