The Aviation Reference Pilots Trust
Quick-access reference for METAR codes, ATC phraseology, squawk codes, V-speeds, and everything in between.
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Reference Tools
Essential aviation reference material, aligned with ICAO standards and official publications.
ICAO Phonetic Alphabet
ATCThe NATO/ICAO standard alphabet used worldwide in aviation radio communications. All 26 letters with pronunciation.
ICAO Annex 10METAR & Weather Codes
WEATHERDecode aviation weather reports — METAR, SPECI, TAF. Wind, visibility, cloud, temperature, and phenomena codes.
WMO / ICAOATC Phraseology
ATCStandard radiotelephony phraseology for all phases of flight. Clearances, readbacks, and standard calls.
ICAO Annex 10 / CAP 413Airspace Classification
AIRSPACEClass A through G airspace explained — requirements, separation, IFR/VFR rules, and communications requirements.
ICAO Annex 11Approach & Landing
NAVIGATIONILS, VOR, RNAV/GPS, and visual approach procedures. Decision heights, minimums, and missed approach guidance.
ICAO Doc 8168Navigation Fundamentals
NAVIGATIONVOR, NDB, DME, and GPS navigation concepts. Magnetic variation, track vs heading, and dead reckoning basics.
ICAO Annex 10Flight Planning
PLANNINGNOTAM reading, ICAO flight plan format, fuel planning, alternates, and pre-flight considerations.
ICAO Doc 4444Emergency Procedures
EMERGENCYMAYDAY and PAN PAN calls, emergency squawk codes, lost comms procedures, and standard distress phraseology.
ICAO Annex 2Squawk Codes
EMERGENCYComplete transponder code reference. Emergency squawks 7700/7600/7500, standard codes, and procedures.
ICAO Annex 10V-Speeds Reference
PLANNINGEssential aircraft speed definitions. Vs, Vr, V1, V2, Va, Vfe, Vno, Vne — all explained.
FAA CFR Part 1Q-Codes Reference
WEATHERAviation Q-codes decoded. QNH, QFE, QNE pressure settings and navigation Q-codes explained.
ITU / ICAOWeather Symbols Chart
WEATHERAviation weather symbols — METAR codes, synoptic chart symbols, fronts, and precipitation types.
WMO / ICAOAviation Glossary
STUDY200+ aviation terms and definitions. From ADF to Zulu time — a comprehensive reference.
ICAO / FAA / EASAPPL Ground School
STUDYKey topics for Private Pilot Licence ground school preparation — from principles of flight to regulations.
PPL SyllabusVOR Navigation
NAVIGATIONVHF Omnidirectional Range navigation — radials, CDI interpretation, and VOR approaches.
ICAO Annex 10NDB & ADF Navigation
NAVIGATIONNon-Directional Beacon navigation using ADF — relative bearings, homing, and tracking procedures.
ICAO Annex 10SIGMET & AIRMET
WEATHERSignificant Meteorological Information and Airmen's Meteorological Information — decoding and interpretation.
WMO / ICAOGPS / GNSS Navigation
NAVIGATIONGlobal Navigation Satellite System concepts, RAIM, WAAS/SBAS augmentation, and RNP/RNAV operations.
ICAO Annex 10 Vol IILS Approaches
NAVIGATIONInstrument Landing System — localiser, glideslope, marker beacons, CAT I/II/III operations and minima.
ICAO Doc 8168RNAV & RNP
NAVIGATIONArea Navigation and Required Navigation Performance — LNAV, VNAV, LPV approach types and specifications.
ICAO Doc 9613Approach Minimums
NAVIGATIONDecision altitude, decision height, MDA/MDH, visibility and RVR minima for all approach categories.
ICAO Doc 8168Instrument Rating (IR)
STUDYIFR procedures, holds, approaches, and instrument regulations for IR study and ATPL qualification.
ICAO / EASA / FAAStudy Guides
Structured guides for pilot exam preparation and ground school study.
PPL Ground School
Key topics for Private Pilot Licence ground school preparation — from principles of flight to regulations.
BeginnerInstrument Rating (IR)
IFR procedures, holds, approaches, and instrument regulations for IR study and qualification.
AdvancedRadio Telephony (RT)
Prepare for your RT practical exam — phraseology, readbacks, and standard procedures.
All LevelsMeteorology for Pilots
Weather theory, fronts, icing, turbulence, and aviation weather interpretation for pilot exams.
IntermediateQuick Reference
The most frequently looked-up aviation codes — at a glance.
ICAO Phonetic Alphabet
Emergency Squawk Codes
Cloud Cover Codes (METAR)
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