Froggy Jumps Unit 1. Aeronautical AbbreviationsVersion en ligne summary of the main abbreviations used in aeronautical English par William Alsina 1 Abbreviation of Area Control Centre a AAC b ACC c CAA 2 AGL abbreviation means: a Above Ground Level b Above Mean Sea Level c Above Terrain Level 3 Visibility, cloud and present weather better than prescribed values or conditions a IMC b VMC c CAVOK 4 EET abbreviation means: a Estimated Time of Arrival b Estimated Elapsed Time c Estimated Time of Departure 5 Abbreviation of Instrument Flight Rules: a IMC b IFR c VFR 6 A notice contained information concerning the establishment, condition or change in any aeronautical facility, service, procedure or hazard, the timely knowledge of which is essential to personnel concerned with flight operations. a METAR b AIP c NOTAM 7 Abbreviation of Area Navigation a RNAV b AN c GNSS 8 Information concerning en-route weather phenomena which may affect the safety or aircraft operations a NOTAM b MET c SIGMET 9 Coordinated Universal Time a UCT b CUT c UTC 10 VOR abbreviation means: a VHF Omnidirectional Radio Range b Omnidirectional Radio Range c Distance Measuring Equipment