TRANSPORT|air and space transport|air transport
- HDD Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
- ga
- taispeáint chromchinn Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
- ga
- HDD | head-down display
- en
- Definition a display on the instrument panel which can only be seen by looking down, i.e. below the windscreen Reference Multilingual Aeronautical Dictionary (AGARD,1980)