Basics of IVAO Network UTC Daytime and night Frequency Emergency frequency and messages UNICOM ATIS How to fill out your ATIS Air traffic control position Transponder Use Communication Clearance, Instruction and readback Readback Theory Altitude, height and flight level Transition altitude and transition flight level Altimeter setting methodology Airspace structure Airspace classification Airspace classification table Rules of the air Phase of flight VFR Minima International standard atmosphere (ISA) Meteorology International alphabet Radio telephony ATC callsign Radio telephony Aircraft callsign Radio telephony basics Introduction to phraseology Aircraft instruments and settings Cockpit architecture Flight instruments – Generalities Navigation instrument – Generalities Aircraft knowledge and performance Loss of control Other Document Definitions Abbreviations Altitude conversion table Distance conversion table Pressure conversion table Speed conversion table Temperature conversion table