Height Above Touchdown

From EUROCONTROL ATM Lexicon
Jump to: navigation, search
Link Semantic Value
Term Height Above Touchdown
Status


Mandatory for


Contexts


Categories
Synonyms


Related entries


Broader term


Narrower term


Abbreviation

  • HAT

Definition

The vertical distance between the touchdown zone elevation and the Decision Altitude (DA) for precision approaches, or the Minimum Descent Altitude (MDA) for non-precision approaches.

Definition Source

  • AIFDD

Note

The Height Above Touchdown (HAT) applies to straight-in minima.