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TAF (Terminal Aerodrome Forecast)
A weather forecast in coded format issued for airports, covering a 24 or 30 hour period. TAFs predict wind, visibility, cloud cover, and significant weather changes. Pilots use TAFs alongside METARs for flight planning decisions.
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Learn more in Private Pilot License →Related Terms
- TFR (Temporary Flight Restriction)A temporary airspace restriction issued by NOTAM that limits or prohibits aircraft operations in a defined area for reasons such as disaster relief, VIP movement, or special events. Checking TFRs is a core part of VFR preflight NOTAM review.
- Traffic PatternThe standard rectangular flight path around an airport used for arrivals, departures, and training. Pattern legs typically include upwind, crosswind, downwind, base, and final. Night training for private pilots requires takeoffs and landings involving flight in the traffic pattern.
- TransponderAn electronic device in the aircraft that transmits a coded signal when interrogated by ground radar. Mode C transponders report altitude. Mode S transponders support ADS-B Out, which is required in most controlled airspace.
- VASI (Visual Approach Slope Indicator)A visual glide-path aid that uses red and white light bars beside the runway to help pilots maintain a safe approach angle. A disabled VASI is a common NOTAM item that can change night or VFR approach planning.