EDUCATION AND COMMUNICATIONS|communications · TRANSPORT · TRANSPORT|land transport|land transport
- uirlisí caocheitilte Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
- ga
- blind flying instruments
- en
- Definition instrument specifically designed to supply a pilot with information sufficient for him to fly an aircraft using instruments only Reference Multilingual Aeronautical Dictionary(AGARD,1980)