A B C D E F G H I M N O P R S T U V
NATS Holdings, formerly National Air Traffic Services and commonly referred to as NATS, is the main […]
A non-directional (radio) beacon (NDB) is a radio transmitter at a known location, used as an […]
Means the hours between the end of evening civil twilight and the beginning of morning civil […]
Abbreviation of ‘Notice To AirMen’. A NOTAM is filed with an aviation authority to alert aircraft […]